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How to re-mirror a drive to RAID

Q: How to re-mirror a drive to RAID

I searched but I can't find the same issue. I know how to reconnect a drive in a Mirror raid when the previous has failed, then the system will copy all files and rebuild the Mirror.
But my problem is the following:

- I had on Mirror raid consisting of 2 identical drives, for data security.
- Yesterday, I put a new drive in the system (not for the Raid array, just a regular one for other purposes)
- I had to rearrange all the drives inside the pc and redo all the wiring and plugging.
- When I started Windows, it said one of my two raid drives was missing and that the redudancy failed. I thought the drive was dead but it wasn't.

- I actually right clicked on it in disk management and did a "reactivate volume", then the drive went back online and worked, it doesn't seem to be damaged at all and is marked at "healthy". I did a quick scandisk and everything is fine.

- Now my raid Mirror is broken, I have the 2 drives but they aren't connected together.
- They are still marked as "dynamic" while being separated.
- When I right-right on one of them I don't have any option to reconnect them into a Mirror. Extend volume" and "add a Mirror" are greyed out.

I seem to be stuck. Any idea of what should I do?

Thank you for helping.

Preferred Solution: How to re-mirror a drive to RAID

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A: How to re-mirror a drive to RAID

We see nothing but problems here with RAID ever since Win7 beta. Not a single good report of RAID, almost daily reports of disasters. It isn't even redundant - the very first letter of it's name! - since users often lose everything when a drive fails or crashes.

You are best off to unRAID your drives and install Win7 to the fastest drive, or to an SSD which is the best upgrade you can possibly have - even better than buying a new PC without one. Then after install add back and format the other drive(s) for storage, data and the all important and reliable backup images taken just after install and setup and then regularly.

Then focus on doing a perfect Clean Reinstall Windows 7.

I wish I had better news for you, but it is not something I mess with because it only gets worse, never better, compared to the perfect installs we have helped millions get here.

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So currently my gigabyte motherboard has 2-1TB drives in a mirror raid as my secondary drive for data storage and 1 250GB single drive for my OS. In the BIOS I have the setting set to RAID for my hard drives, which I set this after I loaded windows when I first started, but now my 250GB single OS drive needs to be reloaded, but my XP disc will not see the drive since I have it set to RAID. I'm having trouble loading the raid drivers from gigabyte and I thought it would be easier to set the hard drives to AHCI mode and unplug my 2-1TB drives, reload windows on the 250 then plug my 2-TB drives back up then switch the BIOS back to RAID, but I am worried that this will mess up my RAID on my 2-1TB drives?? I would hate to experiment and lose the data on those drives. Will switching modes mess up my RAID???

A:Gigabyte Mirror Raid on backup drive need to reinstall XP on single OS drive question

Pull the drives off the system, do whatever you need to do to get XP installed. When that is working, change the settings to RAID, then reconnect the mirror.

It's best to install XP with nothing else on the system anyways, otherwise you risk having XP decide to install your O/S on drive "D:".

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I'm looking into replacing the mirrored drives in my IBM xSeries 235 with larger capacity drives, and was wondering if
anyone could tell me if it is possible to remove and replace the secondary with a larger drive, let the mirror rebuild,
then replace the primary with a larger drive, and once again let it rebuild... then, (and this is the iffy part...) can I boot from an Acronis or Easus disk (or similar partition utility) and just resize the partition to use the entire drive? As is understand it now, if I rebuild the mirror with larger drives, the capacity will still be that of the original (smaller) drives unless and I can somehow resize the partition.

Any advice/help is appreciated!

A:Adding a bigger drive to RAID 1 mirror

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I have tried to create a RAID 1 mirror drive on my 64 bit Windows 7 Professional system. I have installed 2 additional Seagate 1Tb drives (ST1000DM003) and when I tried to Add Mirror and selected the other drive it looked like it was working but there were 2 boxes that came up that it was not formatted try later, and also that it couldn't assign the drive letter. When I tried to assign the drive letter, I get an error box with "Virtual Disk Manager" in the title and a message "The system cannot find the file specified". When I search for that I find many references but mostly with external USB drives and none of the resolutions helped. Trying to format gave a different error and failed. I found that in Device Manager under Storage Volumes there is a Generic Volume with the error "This device cannot start. (Code 10)" Both drives show up under Disk Drives with "This device is working properly." Under Disk Management both disks show Dynamic,Online and Healthy and the upper portion shows the Mirror volume. I tried to update the driver on the Generic Volume with the error and it says it is already using the best one. I went back and broke the mirror and used Diskpart to Clean both drives to start over. I created Simple volumes on both, formatted them, assigned a drive letter and was able to store files on them. I then made them both dynamic successfully and could still store and read files on them so I know the drives are good. I also t... Read more

A:Can't Create RAID 1 Mirror Drive on Win7 Pro, 64bit

I believe you will have to set your sata controller in BIOS to Raid (which may keep your OS from booting unless it was installed that way) and on boot up you should see a raid screen. Hold down the Control Key and press I to enter the raid set up. set the drives up there and it should work. Make sure they are on the same controller.

I should mention that raid may cause you more problems than it is worth, and if you are doing it as a backup, Raid is not a backup and will not serve as one. You will also take a performance hit with raid 1 too.

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I wiped and reloaded xp on my single hard drive dell and now I get an error that says my riad mirror array is degraded.....What is up with this?

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I built a new computer. I wanted it to be more reliable. So, I got two identical hard drives. I installed Win 7 Pro as one big C: partition. Then I converted to dynamic disks and mirrored the first disk onto the second disk. Everything works! I even gave it a test. I powered off, and disconnected the SATA cable on the first hard disk. Windows booted right up, off the second HD. Great! It seems the mirroring works and can tolerate a missing disk. (I had to rebuild the mirror after doing this test.)

I have some questions about how this will work over the long term. I noticed that when the first hard drive was missing from the mirror Windows never gave an error message. How would I detect a failing or failed hard drive? This is important, I think.

How does Windows deal with a bad read on one hard drive in a two drive mirror? Say if one disk reads correctly, but the second disk reads a bad sector, how does Windows know what is the correct data?

I found that Windows gives a text mode menu when I first boot up the computer. It wants me to select which Windows I will boot: the first hard drive or the second "Plex". Is there a way to set a default, so it will always boot the first instance of Windows without user intervention? Or would this defeat the mirroring function in the case of a bad hard drive?

Does anyone have any other wisdom on running software RAID mirror under Windows? Thanks for replies.

A:How to use an manage a Win7 software RAID mirror drive

My suggestion is to not use it at all. RAID is not a backup, so in a mirror, if one file is deleted, or a virus is present...it will affect both. A better method is to run one drive, and use the second in an external cage to keep as a backup. You can use something like SyncToy to keep your important files backed up, once a week or so.

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Is it possible to setup a mirror array with an internal drive and an external drive setup with esata? The main reasoning behind this is that I want to make a backup of one of my internal drives. The internal drive is 1.5TB made into two partitions, one 500 and ext3 and one 1000 and ntfs and the external is 750GB ntfs (I could format it to ext3) with no partitions. They use the same sata controller, so I can set it up in the bios as a mirror array.

I've done some research into it and it looks like it could work, but still want to be sure that there will be no problems.. My external drive is a little slower than my internal simply because it is slower to spin up in general. Would this slow things down as it waits for it? Or will it just rely on the one drive until the external is working? Do I need to do any setting up other than in the bios? I'm using Ubuntu 9.04.

Am I better off just using a backup program?

Sorry for all the questions, it'd be great if this could work instead of relying on just doing a backup every now and then.

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I have a computer running XP which was built with a pair of 80 GB hard drives which have met their limit in terms of free space so the user is wanting to upgrade. These drives appear to be running in some kind of RAID setup via the motherboards built in RAID feature (not a PCI card running this setup). This is the first time I've encountered a RAID setup in a home-based PC.

One other minor problem I have is this motherboard (an Asus ABN-VM) only has two SATA ports, which are both used, so I'm going to have to clone to an external drive as an image file and then connect the new single 500 GB drive and clone back from that image to the new drive. However, come to think of it, I have an adapter that would allow me to connect the new drive to the PC via USB so... scratch that concern I guess.

I decided to take the plunge and see what Clonezilla would do with the external USB drive I have and the two 80 GB drives in the PC. When the main menu appeared I told it that I wanted to work in device_to_image mode and then told it to mount all drives. It then asked me to select the drive I wanted to use as the source but it presented both drives as individual drives, not a single mirror as I was expecting the motherboard to present it as. So... don't know what to do from here.

Perhaps there's another cloning utility out there I could run from within Windows or could boot from a disc that would recognize this array and clone it to a single drive properly. Any suggest... Read more

A:Need to clone a RAID mirror (two drives) to a non-RAID, single HD

If the drives are mirrored then imaging one drive should be all you need. If the drives are striped then the two drives are being combined together to make ~160GB drive.

I guess to determine this, what is the capacity of the main 'logical' drive? 80 or 160'ish?

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I have a 500 GB hard drive and a 250 GB hard drive. I want some kind of redundancy to be setup with them. I have both drives up and recognized through disk management. I don't have a RAID controller card or anything of the sort to do it hardware wise. Is there something that I can do inside of windows server 2003 to make them mirrored or something to the effect that if one goes down I can rebuild it. I also know that it can only be as large as the smalled HD. So it's going to be limited to 250 GB. And the last part is if I partition part of the 500 GB hard drive off can I still use the other half.

A:RAID vs. Mirror, and how-to

Sure, you just Read The Friendly Manual about how to set up software RAID in Windows.

No, AFAIK Windows software RAID does not support mixing drives and partitions.

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I have 2xWD black label 500GB in mirror raid. Obviously they are set as primary now.
I want to make the SSD primary, the raid secondary drive and do clean windows 7 install on the SSD.

Before opening the box I would like to make sure about few things.

1. How do you set a mirror raid as a secondary? Do you need to move any jumpers or just set it from the bios?

2. Since I don't have CD on this computer I have to either make a bootable flash drive OR if there is an option to install windows on the SSD from the current setup (while with my existing windows install and the raid as primary) and then switch the SSD as primary and boot from there? Any caveats here?

Anything else i should know before doing the move?

Thank you!

A:Going from HDD mirror raid to SSD, what I should know?

If you want to be sure, remove the RAID drives, or just pull the power from them. Install the SSD and do your clean install. Once complete, shut off the computer, reconnect power to those drives, and boot up again. You should be able to verify in your BIOS that the SSD is the first drive the system looks to when booting.

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interested in confirming before i buy an xps 8900 with I7 6700 at 4ghz and 32 gb ram that the unit support raid mirroring through intel matrix storage.  is there is specific model i need to to look for do all xps unit support raid.

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I am not a hardware person at all. I have a pretty good hardware problem. Can someone please explain the best and most practical way of handling this situation. I want to do either a RAID or a mirror array. But it needs to be software managed, it's not going to be a hardware set up. I have two hard drives but they are not the same size. Is there a way to set this up virtually? If anyone has any input at all feel free to post. This is under a time constraint so the faster the better! Thanks!!!!!


Yes, you can use different hard drives no problem. The size of the smallest one will define the size of the array. As for how to set it up.. Just google for your specific OS. Like "windows raid".

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System is a Dell Dimension 8400 with 2 identical SATA HDD's using Windows XP Pro SP2. How can I repair this raid to access the data that is on the drive(s). My only thought is to get the raid drivers to the PC and have them on a bootable floppy or USB device and press F6 when booting from the Windows XP Pro CD. Correct me if I am wrong in this process. I ran the disk utility on the system to try and identify the BSD, but nothing shows up. The BSD stop error points to the NTFS file system. Yes, I have a copy of an ERD Commander disk to access the drive, but I did not boot with any F6scsi (SATA) drivers for the raid. It did not see the C:\windows directory so I am assuming the reason is the drivers mentioned above.

Help on this would be greatly appreciated.

A:BSD 0x00000024 raid 1 mirror

In response to my question as shown with the stop error 0x00000024, if I replaced one of the drives, being that it is raid 1 mirrored could I access the data that could be possibly be lost? If someone out there is good enough to try to help is greatly appreciated. For a home PC, I don' understand how a a company like Dell could provde such an option as a Raid. Unfortunately, my colleague will loose his important data, since there is no backup of this stuff. I am well aware of the issues with no backups, since I personally have lost information in the past. Now, I have 2 to 3 locations where I store that information to avoid loss of xtuff. Yes, I ama a techie, but I don't wprl work with RAID for this reason and would like some help here.

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I have had to reformat my hard drive because I thought it was the best way to get out of a mess I got myself into. You know the computer from HELL day.
I have a RAID 1 (Mirror) configuration and really want to keep it. This system worked for over 3 weeks flawlessly and all of a sudden I think I had some software issues or graphic card issues. I then did a memory check and the disk corrupted my system.
So I am at ground 0 and I can't even load XP Pro into my system.
For some reason it thinks there is something on my drive and it is in a loop of booting, then it formats my drive, then it thinks there is a windows folder on it still and askes me to write over it. I say ok to let it write over it and I never see any graphics it just reboots and repeats the whole process over and over again. I am loading the software correctly I see the license agreement but it never starts to load just goes in and copies the 3rd party software like it should then it writes some files on disk but in a dos type enviornment. I never see the black XP screen in this whole process.
Do you think it is seeing the mirrored drive? Any ideas?

11 hours between last night and today... I need a drink!

Thanks for any help you may have.


A:RAID 1 (Mirror) and XP Professional

Did you use the 6 XP pro boot floppy disk , to do a clean install ? just curious
also when you mirrored the OS did you do that on a seperate hard drive or same hard drive ?

I need a drink too !
This is what I would try when you're at this point installing XP - do a totally clean install
( If an existing Windows XP installation is detected, you will be prompted to repair it. At this point hit the ESC key (do not repair).
- The screen will now list all existing partitions and un-partitioned space for each hard disk. Use the cursor/arrow keys to choose where to create the new partition. Press D to delete an existing partition or press C to create a new partition in un-partitioned space. If you press D to delete an existing partition, ) make sure you delete the partition - then install on you're newly partition drive

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I have 3 RAID mirrors, 2 X 2Tb and 1 X 1.5Tb.

The small mirror (1 X 1.5Tb) degraded so rather than replace the dead 1.5Tb (after securing the data) I deleted the volume and bought 2 X 4TB drives.

Replaced the 1.5Tb discs with the 4Tb discs and double clicked on the Intel Rapid Storage Technology icon and loaded the program which saw the new discs as 3,815Gb drives

I then created a new RAID mirror, no problems. BUT, the display shows the 3,815Gb discs but the mirror size is only 1,718Gb.

Could someone, more conversant with the topic, please confirm that RAID mirrors are limited to 2Tb? As it appears that my new mirror has lost a factor of 2Tb.

I contacted Gigabyte (the manufacturers of my P55A-UD7 motherboard) and they suggested that I SHOULD be able to build 3Tb mirrors. It seemed strange to me that they couldn't say if the MB could or couldn't handle larger that 2Tb mirrors, after all they are the manufacturers

Maybe someone more aware of Intel limitations can answer my query?

My MB (and whole system) is a couple of years old and I am running Windows 7 64bit with 8Gb ram.

Thanks in anticipation

PS I got a message that the drivers for the 4Tb discs failed to load!?

A:Can I create a RAID mirror with 2 by 4Tb discs?

larger than 2tb hard drives require them to be formatted in GPT format, and if you wish to use them as a primary boot drive you must make sure your mobo supports UEFI or unified extensible firmware interface.. thats a mouthful.

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Motherboard: Asus P7P55D-E Pro
Windows 7 64bit
4 Hard Drives, 1 is boot drive (C), 1 is non-RAID and 2 set up as RAID 1

I am about to replace my Boot drive with a Crucial M550 SSD, by cloning the current drive to the SSD. This appeared a fairly straight forward procedure until reading of the problems associated with running in AHCI mode. I've seen the tutorial and the need to modify the registry to allow installation of AHCI drivers.

Because I have RAID 1, the Intel P55 chipset SATA is set to RAID in the BIOS. I'm presuming that if I were to change to AHCI the RAID would be lost and the PC would likely not boot at all.

If possible could you tell me the best procedure to follow to set up my SSD with my current set up. I'd prefer to avoid fresh re-install and clone if possible.

Thanks for any help.

A:AHCI and Installing SSD on Mirror RAID 1 Set Up

If you have RAID set up with the same controller that the SSD will use, the RAID drivers have the same functions as the AHCI drivers. You do not need to change to ACHI.

Cloning or using an image of the operating system to the SSD should work just fine.

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Does this MB support hardware raid 1 or do I need to use software raid?  I have looked it the setup however the only thing I can find is RAID support under SATA Emulation.  And that does not seem to be what I want.  I don't see anything else.  Do I need a HP config disk?  I will be installing Debian 7.2 (linux) Thanks

A:RAID 1 (mirror) on a EliteDesk 800 GI TWR ( C8N27AV ) ?

Hello, This unit does support RAID 1 (mirror). By default the unit is set to RAID 1. So all you need to do is to enable RAID in SATA emulation mode and re install the OS.

Regards,RobYI am an HP employee... I don't speak for HP.

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We have two partition in Disk 0: One is Boot C: and another one is a simple volume but if i mirror one C: by Add mirror option i am not able to mirror the another one(D:\) (there is also difference of 0.01 GB space, still both has same size 63.87 Gb in Size) with Disk 1. the add mirror tab is being grayed out.

But i got surprized when then i mirrored the D: First. it shows another partion is equal to the boot (c volume. but the add mirror option is grayed out.

Can anyone have solutions pls.... is it any bug of 2000?
HEKP REQUIRED ....???????

A:IS it any Bug In Raid(Mirror) In Windows 2000

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processor intel R Core TM i7 CPU 860 @ 2.80GHz
8GB RAMhttp://b.tsgstatic.com/smilies/confused.gif

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I知 currently running a single PC that handles my small retail store operations and I知 feeling vulnerable to a possible hard drive crash that would put a halt to my business for a day or three while I get a replacement and restore all data. I believe the best solution would be to run a dual mirror drive so I could seamlessly switch over if one drive failed, without missing a beat. Am I correct that this would be the best solution to address my concerns?

Next, the PC I知 currently running is a HP rp5000 and I知 told that this model does not support a RAID configuration that would allow me to add a mirrored hard drive. I知 being told I need to buy a new PC with a dual drive (RAID1) configuration which will cost me between $1000 - $1300. Is this true that my current computer can稚 be configured to run a dual drive and are there any less expensive work-a-rounds anyone can suggest?


A:Question about Mirror HD RAID setup

Mirror raid would definitley be useful. Bear in mind that it only helps against drive failure, not against viruses etc. I assume you woul dalso back up to an external on a daily/weekly basis, in case ofcatastrophic failure.

as far as setting RAID up goes, not sure exactly on your specs, but you should br able to get a raid card- think they run around 20-40 dollars, but not sure. Certainly not too much. It plugs into an expansion port and allows you to plug drives into it, exactly as if it was going to the mobo. The card then allows raid, although it will need rivers- al supplied and not a problem.

If you go that way, and dont feel confident, probably worth considering getting someone to do it for you. That way at least you know it will be done correctly and give you what you need.

Checled your spec, and seems you have free pci slots. Suggest that one of these


Would probably be suitable, but check first.

Hope its useful

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Is it possible to create a software mirror on Windows XP? If so, could anyone tell me how it is done.


A:Creating a mirror software RAID on Windows XP

Using disk management utility...click the drive you wnat to mirror, hold the ctrl key and select the prtiotion you want to mirror to. Go to the menu and select establish mirror.

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I have a 64-bit Windows 7 system that is functioning fine.  I have two identical hard drives (one is the drive Windows is currently installed on) and want to set up a RAID 1 mirror without reinstalling Windows.  The hard drives are both Western Digital 2TB Black (http://www.wdc.com/en/products/products.aspx?id=760).  Both are fairly new and are showing no signs of problems.  My motherboard is the ASRock A770DE+ (http://www.asrock.com/mb/AMD/A770DE+/).
When I go into the BIOS and switch on the RAID and configure it as a mirror, Windows will not boot.  The Windows logo comes up but then I get the blue screen of death with an error code of 0x0000007B.  If I turn the RAID off in the BIOS and reboot, Windows boots normally.  I tried installing both the AMD RAID drivers and RAIDXpert Utility (http://support.amd.com/us/gpudownload/windows/Pages/raid_windows.aspx#2) and changed the registry settings suggested by Microsoft (http://support.microsoft.com/kb/922976) but nothing has worked so far.  Does anyone know why this might still be happening and how to fix it?  Thanks in advance!

A:Adding a RAID Mirror to my System and Getting BSOD

<<...want to set up a RAID 1 mirror without reinstalling Windows.>> 
I don't think that can be done.  In order fot the O/S to be mirrored, it seems that the RAID must already be in place, prior to Windows installation.
Just opinion.
You are getting the BSOD because the RAID is not properly set up and the system can no longer boot to the single drive with Windows on it, IMO.

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I have Home Windows 7 premium which means I cannot Encrypt, create dynamic disks, or mirror (RAID 1) my hard drives, so if this is true and I want to use any of these I need to go back to my Vista Ultimate?

A:Encrypt, dynamic disks, & mirror (RAID 1)

You don't HAVE to go back to Vista Ultimate, you can get an upgrade to Professional as an option.

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Simplest thing to do is to just load W7 and get it over with...but am just smart or stupid enough to consider alternatives...

I have a pretty stable WinXP install but have run into games that require 7 (and DirectX 10).


Can I install W7 on a non-raid HDD (already on my machine) while keeping WinXP on the 250 GB mirror thus avoiding application reload AND potential for issues with the RAID array?

My initial thought is to unplug the mirrored drives and install W7 to the single drive. Replug the mirrored HDDs (same ports). Edit the Boot sequence to allow choice of XP or 7.

How badly would this go?

A:Desire to keep WinXP on Mirror RAID with Win7 on separate HDD

Not well with Win7, which doesn't much like RAID.

A lot depends on the controllers which will need to provide both RAID for XP and SATA/AHCI for Win7.

You can try booting WIn7 to see if it sees the target HD, then try install.

If this fails, unplug the RAID while taking careful note of its settings, try install of Win7 to target HD with nothing else plugged in at all. The SATA controller should be in AHCI mode.

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How can I rebuild the mirror in a proliant ml310 server. A couple of days back the primary disk crashed but the system kept running on the secondary disk in the onboard sata raid.After placing the new disk the server wonエt startup because the mirror is not yet rebuild.I went through the steps in the raid firmware but for unknown reason the new disk is not added to the raidset.Also I know itエs a really old system and should be replaced but my client is happy with the system as it is and sees no need to replace just yet. I am looking for a solution so the new primary disk is active again and the mirror is being rebuild.  

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I received a "critical" message of some sort regarding my RAID mirror array. I have 2 of the exact same type and size drives in the array, purchased on the exact same day, about 2 months ago. No problems until today's boot. No modifications to the array since first configured. The computer uses Windows 7. Any ideas how to investigate or resolve this issue? I am currently running chkdsk.

More details:

Drives are WD Green 1TB SATA (32MB cache)

Mobo is AMD

PSU is 550 Watt Logisys

Each drive has it's own set of "hard drive fans" attached to it

The SATA cables have a metal locking mechanism that securely keeps them connected

A:RAID Mirror Displayed Error Message at Boot

Update: chkdsk just finished and reported that no errors were found on the File System

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I'm just wondering... I'm setting up a server and planning on having either a RAID0 or a RAID5 array of SCSI disks.

I could potentially use a SCSI RAID1+0 setup for my backup needs, but I've been thinking along different lines. My system drive/array will be around 300 to 450GB in SCSI, and I'm planning on having a large capacity sata disk or two in RAID1 for data...

... while I know I probably can't use the same controllers, is there any cheap and easy way by which I could have the system drive (scsi striped array) mirrored to a dedicated sata drive for backup purposes, such that if I lose the whole striped array at some point, I'll still have a backup of the lost data with which to build a new array to replace it with?

A:Mirror SCSI RAID array to SATA disk?

The good thing about Raid 5 is if one disk starts to die it gives you warning and time to pull it out and rebuild it without missing a lick. If the controller goes you can replace it and your drives will still be fine.

Now if you want to back up your entire network to a SATA array then i would advise investigating Data Protection Manager 2010 (DPM 2010). Full backup to a disk array every day and incremementals every 15 minutes, then a tape backup to take to the bank on the weekend.

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Does the final RTM Windows 7 support SOFTWARE RAID-1 (dynamic disk mirroring)? I know it supports fake-raid and hardware raid but I want to use software raid because my disks are of different size. I don't want to try it myself since I would have to convert my disks to dynamic.
Windows Vista didn't support it. XP had it disabled but could be hacked. It was enabled in Windows server 2003 (and probably others).


A:Does Win7 support SOFTWARE RAID-1 (dynamic disk mirror)

yes it does. It wasn't long ago that I used it.

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Hello, I'm an italian guy and I don't speak a good english.
That's my problem:
I've a pc with a "Raid 1" configuration (mirroring) with windows Xp Sp3 and two WD hard disks.
Two days ago, I noticed a red alarm message from my pc: "degraded raid".
After entering in windows xp, my computer recognized a second hard disk, the mirror one.
So I was able to see and modify my first hd (C:, the booting one) and his mirror (E: ), but this last one
had more data than the first one!

I tried to start up my computer with only one hard disk at a time (the other was phisically
disconnected) and windows started normally in both cases. So no hard disk was damaged.
So, I tried only E: hard disk (obviously recognized as C: ) and then C:. Then I attached E: so
my pc had both C: and E: hard disks, but the alert message remained (degraded raid).

Yesterday night I tried one last time to start only with E: and I had no problem. So I shutted down my pc and reattached C:.

This morning I started my computer and the raid configuration was ok (no red error message!), but
I've seen an error message before the windows xp screen: "NTLDR is missing".

What's the problem?
Probably my pc doesn't know from what hard disk start windows xp? Does it have problem to
recognize the boot hard disk?
What I've to do?
1) phisically disconnect one of my hard-disk alternatively? But in this case may I lost my data?
2) delete the raid array? But in thi... Read more

A:Solved: "NTLDR is missing" and Raid 1 (mirror) configuration - Help! (correct title)

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Hello, I'm an italian guy and I don't speak a good english.
That's my problem:
I've a pc with a "Raid 1" configuration (mirroring) with windows Xp Sp3 and two WD hard disks.
Two days ago, I noticed a red alarm message from my pc: "degraded raid".
After entering in windows xp, my computer recognized a second hard disk, the mirror one.
So I was able to see and modify my first hd (C:, the booting one) and his mirror (E, but this last one
had more data than the first one!

I tried to start up my computer with only one hard disk at a time (the other was phisically
disconnected) and windows started normally in both cases. So no hard disk was damaged.
So, I tried only E: hard disk (obviously recognized as C and then C:. Then I attached E: so
my pc had both C: and E: hard disks, but the alert message remained (degraded raid).

Yesterday night I tried one last time to start only with E: and I had no problem. So I shutted down my pc and reattached C:.

This morning I started my computer and the raid configuration was ok (no red error message!), but
I've seen an error message before the windows xp screen: "NTLDR is missing".

What's the problem?
Probably my pc doesn't know from what hard disk start windows xp? Does it have problem to
recognize the boot hard disk?
What I've to do?
1) phisically disconnect one of my hard-disk alternatively? But in this case may I lost my data?
2) delete the raid array? But in this case... Read more

A:"Netlog is missing" and Raid 1 (mirror) configuration - Help!

SORRY, the title of this discussion is "NTLDR is missing...", not "NETLOG is missing..."
Can you close and delete this discussion, please? I'll open a new one!

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Mirror to Mirror Ghost drive, in case of HD failure:

I want a secondary drive in my PC such that,
it is exactly Ghost copy ( mirror to mirror ) of my primary drive including programs and all operating soft wares )
and it copies every once, in a month, to keep it updated
so that when the primary drive has crash / fails,
I can simply replace with the other one,
and computer will start working normally without any problem.

How this can be achieved?

Is it possible that Norton Ghost Utility can do that?

What is the best program for this? Anyone has done it?

The copy program should not use any window utility files
in order to make mirror to mirror copy of the primary drive.

I am dying for this kind of facility.
Pl. suggest me this remedy, about how it can be achieved, and which is the best software for this.

HD are pretty cheaper now a days.
Pl. narrate yr experiences in this regards.


A:Mirror 2 Mirror - Ghost Copy of a HD, in case of a failure !

Why not buy a RAID card -- unless your motherboard already supports RAID. You can run two drive in RAID 1 configuration (mirrored), and if one drive fails you can continue to use your computer. After you replace the failed drive, you can have the RAID array rebuild (re-mirror) to the new, empty drive.

Using a RAID 1 configuration, you are always backed up. The only drawback is if you have a file corruption problem or a virus -- then it would be on both drives.

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Started with Windows and apps successfully running on Disk 0 (1TB Seagate). Bought an exact duplicate HDD, recognized as Disk 1. Followed instructions and used Windows Disk Manager to convert Disk 0 to Dynamic, and configured as a mirror with Disk 1. Everything still worked perfectly. Physically disconnected Disk 0 to test booting from the Disk 1 mirror. Boot failed, and upon reconnecting Disk 0, the PC rebooted (from Disk 0), but mirror was broken.

THEN, my error, instead of properly re-establishing the mirror, I "imported" Disk 1. PC still boots (from Disk 0), but now Disk 1 appears with a drive letter, and Disk Manager does not offer the option to break nor re-establish the mirror. What steps must I take to re-establish the mirror?

Neither Seagate DiscWizard nor the Dell Backup utility seem to work with the dynamic disks. The running application is mission critical, so I hesitate to use "unbranded" utilities.

Thank you in advance for your assistance.

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Hi there
Yesterday my computer was shut down when I returned home.  I may have lost power but I am connected to a UPS that should have kept me safe from any surges.  Turning the computer on, my RAID5 drive (drive letter M) is gone and a mysterious new drive
has appeared, labeled as drive E, also showing as a RAW drive. In disk management, I can see that drive M is its normal size, 11177.94GB.  I am using 4x4TB drives.  Intel Rapid Storage Technologhe shows all four
drives as healthy and functional.  Drive E shows in Disk Management the same as Drive M, and I have no idea how it ended up there and what I should do with it.  My C drive shows up and works normally, where I have my OS and programs installed.
Not sure where to start, but hoping it is just an issue with the MBR?  

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I've got two identical WD VelociRaptor 1TB Drives.
One has been setup as a storage drive for a long time, and I'm finally getting around to setting the other one up as a RAID 1 mirror.
Both were bought at exactly the same time.
I see this website, showing how to perform the feat on a PowerEdge Server: [https://markmcb.com/2015/07/21/reconfigure-dell-perc-h310-raid-0-to-raid-1/]
But pressing F10 on my system does nothing at all.
Is something like this possible on a Precision T5600? Or is this just a server capability?

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I've got two identical WD VelociRaptor 1TB Drives.
One has been setup as a storage drive for a long time, and I'm finally getting around to setting the other one up as a RAID 1 mirror.
Both were bought at exactly the same time.
I see this website, showing how to perform the feat on a PowerEdge Server: [https://markmcb.com/2015/07/21/reconfigure-dell-perc-h310-raid-0-to-raid-1/]But pressing F10 on my system does nothing at all.
Is something like this possible on a Precision T5600? Or is this just a server capability?

A:Precision T5600 w/ PERC H310 - Adding a drive and going from RAID 0 to RAID 1

F10 is not for Desktops.How to set up Dell PowerEdge RAID Controller H310 cards on a Precision workstationDell PowerEdge RAID Controller (PERC) storage controller cards H310, H710, H710P, or H810 on Dell Precision workstations T1600, T3600, T5600, or T7600. For more specific information on the controller card or workstation, refer to that product’s user guide.To install the PERC    Turn off your workstation and all attached peripheral devices.    Disconnect your workstation from the electrical outlet and remove the workstation cover.    Insert the PERC into the SLOT1 (preferred) or SLOT4 expansion slots.        Earlier T7600 workstation may need to use SLOT4 because the HDD data cable is not long enough to reach to SLOT1.    Connect the hard disk drive (HDD) data cable to the H310 connector labeled A SAS.    Connect the AUX_LED cable to the H310 connector labeled SAS_ACT_LED_Conn.    Install HDDs in the desired order, starting with 0 as the first HDD and note the HDD numbers.        For T7600, HDD numbers 0-3 are available with a single HDD data cable with upgrade options for 4-7.        For T5600 and T3600, HDD numbers 0-1 are available with a single HDD data cable with upgrade options for 2-3.    Replace your workstation cover.    Reconnect your w... Read more

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I am running 7 pro 64bit on a ASUS p8p67 deluxe mobo and I copied all data from my 1tb storage D: drive to a backup external and proceded to install raid 5 with 3 single 1tb drives and the raid is up an running. However using Intel Rapid Storage Technology to setup the raid inside windows I had to use the drive letter R: because D: was not available in the list option. When I start some programs, the program is looking for the data on D: drive. Is there any way to change the letter of my raid storage from R: to D:?


A:RAID 5 switched from single storage to raid 5, lost drive letter

It's possible the cd-rom/dvd drive assigned itself as d: before the new raid was created.
This should be solvable using the windows disk management tool if that's the case.

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Today I noticed an extra drive under My Computer. After some investigation it turns out that the drive is a Mirror of one of my usb drives. I tested this by creating a txt doc on the drive and it shows up on the mirror. I also tried it the other way (create a txt file on the mirror) and it also shows up.

How do I get rid of it?

I have been searching around a bit. Tried Mountvol. It will get rid of it but the mirror pops back up when I reboot.

I recently hooked up this drive to my Dish DVR but the drive goes to sleep and the DVR doesnt like that so I put it back on my computer. I deleted the partitons and rebuilt the drive with vista. I think this is the problem but fdisk /mbr does not work under vista.

There may be something that I am completely forgetting and being stupid about but I cant figure it out.

Any ideas?

Thanks in advance.


A:Mirror Drive

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Is it possible to mirror the C drive? I have an external HD I want to use and I've created an NTFS partiton on the external drive but when I right click on the C drive or the partition on the external HD it doesn't give me the option to Add Mirror. I'm running 8.1 Pro.

A:Mirror the C drive?

Yes. Plenty of software out there to do it. Clonezilla, EaseUS Todo, etc..

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My old hard drive died and I had to get a new one.

On my old drive, I stored a lot of things like word documents on the D drive to save space. When I went to look at the D drive now, it seems like it is a mirror of the C drive.

I'm confused

Any help is appreciated, thanks.


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Someone told me that If you get 2 identical hard drives, you can mirror them and have your main one automatically copy everything you do to it onto the second, so that if the first one burns out the mirror (the second HD) will automatically boot and act as the primary until I can replace the old one. Is this true? If so, how would I go about doing it? Its worth an extra 75 bucks for a 320gig drive to save all my stuff in case of a burnout. Thanks.

A:Hard Drive Mirror?

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Looking for the best app to use to mirror a new clean XP SP3 installation from one internal HD to another. I just spent a day getting my new drive installed with all of the updates and apps I run. I would love to mirror the entire drive (files & OS) to make future recovery easier.

Any suggestions for freeware or otherwise. Thanks ~ Darryl

A:Best App to Mirror one internal drive to another?

Acronis True Image: http://www.acronis.com/ - not free, but the bestFree alternatives:- Macrium Reflect: http://www.macrium.com/ReflectFree.asp (highly recommended)- DriveImage XML: http://www.runtime.org/driveimage-xml.htm- SelfImage: http://www.excelcia.org/modules.php?name=N...icle&sid=21- Paragon Drive Backup: http://www.paragon-software.com/home/db-express/

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could I add an internal non-raid hard disk drive to my computer and leave my 3 other hard disk drives in a raid 5 configuration?
ASUS tech support said that I could add optical DVD/CD drives to my SATA connections on my mobo is that correct? The mobo manual does not indicate that I can so I don't know if I should believe the tech guy or not (unless the information is buried deeply and briefly in the manual - I sure can't find it in the manual). My IDE controller on the mobo seems to be failing so I want to replace my IDE dvd and cd drives with SATA optical drives.

DVD Burner: Lite - on LH-20A1H-186
CD Burner: Lite - on LH-52R1P-185
Case: Silverstone SSTemjinTJ06
CPU: Intel Core 2 Duo E6600 Conroe 2.4GHz 4M shared L2 Cache LGA 775 Processor
CPU Cooler: ZALMAN 9700 LED 110mm 2 Ball
Fax modem: Encore ENF656-ESW-MOPR
Motherboard: ASUS P5B Deluxe LGA 775 Intel P965 Express ATX Intel
Floppy Drive: NEC Black 1.44MB 3.5" Internal Floppy Drive Model FD1231H-302
Power Supply: OCZ GameXStream OCZ700GXSSLI ATX12V 700W Power Supply 100 - 240 V
RAM: Corsair 2 total 2GB (2 x 1GB) 240-Pin DDR2 SDRAM DDR2 800 (PC2 6400)
Video Card: eGeForce 8800GTX 768MB
Hard Drves (3): Seagate HD 320G|ST 7K 16M SATA2 ST3320620AS
Raid 5 configuration

A:Solved: Non Raid Disk Drive in Raid 5 configuration?

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Here's the step-by-step I used when the primary drive failed completely on my software RAID 1 installation of Windows Server 2016. This will not work if you have not mirrored both the "reserved" and drive C: partitions. All you need to do this,
is a Windows 8.1 installation CD or higher. If you have the installation media bootable from a USB drive, that will work too.
1) Remove primary boot drive from computer (The one that failed)
2) Unplug the secondary mirror drive from the SATA port and plug it into the SATA port the primary (failed) drive was plugged into.

3) Using a Windows 8.1 or higher CD, boot the computer  ?as if? you are installing the OS from the CD. (It does not matter if you use a different CD from the OS installed. You will not be installing anything from this CD.)
4) Select the option to repair your computer
5) Select Troubleshoot, then Command Prompt. Note your click path to get to a command prompt may be different, depending on what startup disk you use. (Windows 8.1 or higher)
6) enter DISKPART and press enter get get into the disk partitioning utility.
7) Enter LIST DISK and this will show you a list of the hard drives installed in the computer. DISK 0 will be the working mirror drive that we will make the active primary drive for this computer.
8) Enter SELECT DISK 0
9) Enter LIST PART to list the partitions on the disk.
10 The partition you want to make active is the one that has an offset value of exactly 1024KB. For th... Read more

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Hi to All from new member,
I need to wipe my hard drive and re-install; if I do a mirror backup of the hard drive to an external drive using my Acronis software, will I be able to restore the entire c drive including various applications I have installed over a period of time. Unfortunately, I no longer have original or re-install disks for some of my apps. My computer is an HP pavillion d4100e with windows xp.
Thanks in advance,

A:mirror backup of hard drive

Isn't this the same question (more or less) that you asked before here:

You received help from raybro and flavallee.


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Greetings to all,

I was wondering if someone can tell me what programs are out there that would allow me to mirror one connected hard drive to another. I am not looking for raid but rather an exact one time copy of a hard drive. I am not looking to do this in Windows (as in Acronis and Norton Ghost) so much as looking to boot off a floppy or cd or what have you to do this task. Any thing like that out there?



A:Mirror Hard Drive Software?

Look up Hiren's Boot CD. It has a bunch of imaging tools. All you gotta do it pop it in, boot from CD and select the software you want to use. One of the handiest CDs I have at work.

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So there is a NAS setup in my basement, that has all of my personal photos/videos/documents ect ect, and i am wanting to mirror a specific folder on that NAS to a drive on my own computer. Does windows have this sort of software or do i have to download a 3rd party program to do this?

A:How to mirror a drive/folder on the network to my own PC?

I have used SyncToy to do that kind of thing, but I do not know whether it can do that automatically or always needs to be started manually:

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