RAID 1 is the official name for mirrored disks or volumes

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check physical contents of hard disk connected in software Raid 1 / Windows 7

I have two 500GB hard disks configured in raid 1 (mirroring) on Windows 7. It is being labelled as 'Healthy' in Windows. As you know, these are accessed as one partition of 500GB. Is there any tool ...
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1answer
137 views

RAID 1 with ThinkPad T530

A friend of mine has a T530 (I think he bought it last year) and I checked the spec it seems to support RAID 1 (mirroring). He currently has one hard disk running and is considering RAID 1 and is also ...
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1answer
256 views

Adjusting mdadm priority on Ubuntu

I have Ubuntu 12.04 running on my new server, and it is setup to run off of one drive, then 2 drives that are mirrored using mdadm. When streaming files or media from it, it is extremely slow. I was ...
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2answers
496 views

Intel Matrix Storage / Raid 1 / Asus P5Q-Pro

I have configured two 1TB Western Digital Green Hard drive into Raid 1 Array via my motherboard BIOS last month. Everything works fine and all data are copied to array and system works properly. few ...
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1answer
546 views

Why is Ubuntu 12.10 listing three disks in my RAID 1?

For the same computer that I tried fixing Windows XP on, though the installation was successful, it kept blue screening so I've decided to switch to Ubuntu. The problem is that Ubuntu is also having ...
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0answers
516 views

Windows 8 keeps deleting files from RAID drive

I have an ASRock Z77 Extreme4 motherboard with Windows 8 (not Pro). Brand-new computer, built from new parts. I use a 600GB drive (10,000RPM) as boot drive (let's call it HD1) and 2 3TB drives in a ...
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3answers
305 views

Hard Drive Slow down.. where do I start?

I just built my first PC less than a month ago. I have a SSD drive with my Windows Operating System on it, and I have two Western Digital Caviar Black 2TB 3.5" 7200RPM Internal Hard Drives ...
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2answers
95 views

Can I extend RAID 1 on Debian Squeeze?

I have Debian Squeeze in a RAID 1 on 2 physical 2 TB disks. Is it possible in the future to add two physical disks and extend the RAID 1?
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185 views

Cannot read NAS drives formatted for Linux

I have two hard drives (mirrored) in a QNAP TS-209 Pro II NAS box that won't mount properly. They are formatted for Linux (EXT3 file system) and the problem appears to be with the NAS, not the drives ...
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1answer
219 views

How to properly change directory structure/mount points for directory?

After several attempts to formalize my problem, I think, I finally managed to do it. What I have: mount -l ... /dev/md123 on / type ext3 ...
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1answer
214 views

Disk space and performance with Raid 0 and Raid 1 [duplicate]

I am buying a desktop from Dell, they have an option 2 x 500GB 7200 RPM 2.5" SATA Hard Drive with Raid 0. I Googled about Raid 0 and found that it provides best performance. But I am confused about ...
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3answers
156 views

Continious mirroring of the whole notebook hard drive into a file on the exernal usb hard drive in Ubuntu Linux

What I need to have continious mirroring of the whole notebook hard drive into a file on the exernal usb hard drive. Sometimes the external drive could be unplugged. I'm running Ubuntu Linux.
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1answer
2k views

Windows 7 and software RAID 1 for system [closed]

So I have been using Linux software raid for ages, unfortunately now I need to install Windows 7 on a notebook and since the machine has two disks I was wondering how do I setup software Raid in ...
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3answers
191 views

Is it possible to create a RAID 1 array for ubuntu and install xp on a non-RAID part of the drive?

I was wondering if it is possible to setup a hardware RAID 1 array on 2x1TB drives for the installation of Ubuntu 12.04 whilst leaving some space free outside of the RAID array to install Windows XP ...
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0answers
186 views

Use Intel Rapid Storage Technology with a secondary PCIe RAID card

I have Intel's RST on motherboard using RAID1 (2x2TB) and a boot drive. Trying to add another RAID1 (2x3TB) has failed since RST is limited to 2.2TB for RAID1. Now I've bought another RAID card in ...
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0answers
388 views

Cloning Ubuntu mdadm RAID1

I would like to clone a pair of RAID1 drives created with mdadm. I've tried Clonezilla, but there's no native support for mdadm, so it resorts to using dd which is incredibly slow. I've looked for ...
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2answers
2k views

Are there any good software-based RAID 1 mirroring alternatives to Windows 7 Computer Management?

I only have Windows 7 Home Premium, not Professional, so the mirroring option isn't available in Computer Management. Are there any good alternatives? It's possible RAID 1 is overkill for what I'm ...
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1answer
305 views

Two NAS devices or use a RAID-1 [closed]

I hope this is the right place to post this question. I've been searching for a while, to find an answer to this. I'm trying to find out what is a better approach for our household. Buy two NAS ...
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1answer
806 views

How to recover deleted files on Iomega NAS ix2-200 CloudEdition - Linux based system with Raid1 and JBOD

I deleted some video files by mistake on my Iomega NAS ix2-200 StorCenter Cloud Edition. Linux based system with Raid1 and JBOD I stopped writing any action on the StorCenter. How can I recover these ...
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0answers
959 views

How to create a mirror (raid-1) of an already setup and running ubuntu 12.04 system?

I have a fully setup ubuntu 12.04 installed on a single drive and formatting it just to setup raid-1 is not an option Unlike other answers like this one: Ubuntu 12.04 - Add RAID 1 Array on existing ...
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1answer
155 views

Putting two physical hard drives in a single 2.5" bay?

My crazy brain came up with this ridiculous idea. "Why can't I have a single 2.5" drive device that actually contains two independent hard drives? I want RAID 1 data mirroring and the security of ...
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0answers
1k views

Why does an Intel RST RAID 1 array write faster with write-back cache disabled?

I have two HDDs (5900 RPM) in RAID 1 (mirror). I know, I know, it's painfully slow. I'm currently in the process of replacing them with faster drives, hence this question while I'm testing things. ...
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3answers
341 views

How to set up 2 RAID 1 HDDs? [closed]

I have a home-server (or I want to set one up) with one SSD as system disk and two HDD's for the data. Now the HDD's are new so they don't have any partition. What would be the best way to partiton it ...
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1answer
127 views

Add new partition under raid-1 array

I have small /tmp partition, and I want to create new partition with size 10 GB than current one, I have two hard disk on raid-1 array # mdadm --query --detail /dev/md0 /dev/md0: Version : ...
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54 views

Software RAID 1 resync's on SATA cable switch?

I made a mistake when I opened up my desktop removed a 2 disk RAID 1 and reconnected them, but with the SATA cables switched, such that sda became sdb and viceversa. On boot, the RAID array started ...
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How to create a Software RAID1 in Windows 7 Home Premium? [duplicate]

Possible Duplicate: Which software raid modes does each version of Windows 7 support? Using the built in DISKPART program, or Disk Management, or anything else native to Windows 7, is there ...
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1answer
29 views

Hard drive raid compadibility

Given that I have a RAID 1 array of two 2TB hard disks 3Gb/s @ 5400rpm could one of the drives be switched out for a 2TB 6Gb/s @ 7200 rpm? How do you know if two drives will be compatible in a RAID ...
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3answers
8k views

Firmware vs OS RAID (aka Windows 8 Disk Mirroring vs Intel Onboard)

So Windows 8 is out and I have a new motherboard. I wish to create a RAID 1 coupling between two HDDs -- for storage purposes only (my OS is on an SSD) -- but I don't know which is the best route to ...
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367 views

Data recovery from a single RAID1 disk

I extracted the disk from a Mybook World 2 (White Led). The device has only this 1TB SATA disk, and it is using RAID1. Yes, it is bizzarre, but WD enabled RAID even for a 1-disk configurations. This ...
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255 views

Data recovery from a RAID1 disk

I extracted the disk from a Mybook World 2 (White Led). The device has only this 1TB SATA disk, and it seems it is using RAID1 This is a report from disktype: francesco@blackhole:~$ sudo disktype ...
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3answers
275 views

Does Firmware RAID negatively affect non-RAID devices?

I am running Windows 8 on a Z77 Chipset mobo, and it's all running swimmingly, but I want to put my documents/music/etc. on two HHDs running under RAID 1. On my motherboard I have four SATA 3GB/s ...
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570 views

SSD lifetime in software RAID 1 [closed]

We're looking at use two SSD in a software RAID 1 raid on CentOS. We have tested performances and it is the same as a SSD alone. But we fear that because of mdadm, lifetime of the SSD will shorten. ...
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1answer
955 views

Software RAID 1 broken, how do I fix this?

I'm running CentOS 6 x86_64. There is a software RAID 1 being used on the two internal 80GB drives. I got the following e-mail sent to me: A DegradedArray event had been detected on md device ...
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379 views

How to move a software RAID 1 to a new pair of larger drives?

I'm running CentOS 6 on a server that has two 80 GB internal drives, in a software RAID 1. I want to replace this two internal drives with 750 GB internal drives I have available. How do I do this ...
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0answers
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How to add new partition to RAID-1 array on Redhat FC10?

I have a RH FC10 system with RAID 1 partitions, here is mdadm.conf: # mdadm.conf written out by anaconda DEVICE partitions MAILADDR root ARRAY /dev/md1 level=raid1 num-devices=2 metadata=0.90 ...
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2answers
5k views

Can RAID 1 have more than two drives?

Recently I had a discussion with a teacher of mine. He was claiming that you could set up RAID 1 with five drives and that the data would be mirrored over all of these drives. I told him a RAID 1 ...
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1answer
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Is TRIM disabled even with Windows Soft RAID 1 (Windows Dynamic Disks)

I am looking to build a Windows 2008 Server and wanted to use a RAID SSD array, either via SATAIII or PCIe. Everything I've seen that RAID does not allow TRIM commands to be passed to the SSD, ...
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1answer
67 views

Is it okay to mix HDD models of the same size and manufacturer in a home server RAID 1 array?

I've got a WD Caviar Green drive I'd like to put in a hardware RAID 1 array for a home server (for storing music, photos, etc). Problem is, the specific model I have isn't shipping any more. Will I be ...
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2answers
8k views

Upgrading disks in a RAID1 Synology 2-bay drive

I have a Synology 2-bay 211j NAS with 2x1TB HDD installed as single RAID 1 volume. I'm running out of space, so I'd like to upgrade my NAS with 2x3TB HDDs. Is there any easy way to copy all data from ...
3
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1answer
704 views

Ubuntu 12.04 boot degraded RAID

I've installed Ubuntu 12.04.1 in a new server and set up the 4 hard drives with 3 RAID 1 devices, the configuration is such that the first two drives have md0 (swap space) and md1 (/) with the third ...
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1answer
197 views

Booting Ubuntu with a RAID-1 Boot Failure

I'm planning on picking up 2 SSD cards for my file server and installing Ubuntu on them using softRAID-1. I will not be keeping a hot spare, so I want to make sure that, if one drive fails, I can ...
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2answers
350 views

FakeRAID array is failing, why?

We have a Windows XP system with an AMD mainboard (GA-890GPA-UD3H) and we are using the onboard RAID capability. The system is configured in RAID 1 (using the tool AMD RAIDXpert). It consists of two ...
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1answer
132 views

Hardware RAID 1 With ERC/TLER/CCTL

I am aware of the problem when using standard consumer-grade drives with RAID levels 5 and 6; if a drive takes too long trying to read and/or repair a bad sector, it will be dropped by a hardware RAID ...
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275 views

My existing external RAID 1 will not show on my new motherboard

I had two identical (external) WD 1Tb HDD that I set up in RAID 1 NOT through BIOS. I forgot how I did it (just followed some instructions online how to do it through Disk Management). But the RAID ...
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300 views

Windows 7 : soft RAID1 and dynamic volumes reliability

My setup is quite classic nowadays : 1 SSD for system/apps and 2 HDDs for data setup in a fake RAID1 array. I also have a backup scheduled every week for the data drive in case it fails because I ...
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2answers
1k views

Recovering data from RAID1 drive

I have recently received one of the two 1TB drives I had on a dedicated server. The drives were mirrored and the server was running CentOS 5.6. I've installed it in an USB enclosure and tried ...
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1answer
278 views

How to check consistency of an external RAID1 array in Windows?

I have a Western Digital MyBook Studio II configured into RAID1 (2×1TB) and connected to a Windows 7 machine via USB 2.0. RAID is done through a controller in the enclosure - I've never seen each of ...
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1answer
1k views

Is Intel Rapid Storage Necessary for a RAID 0 on a P6T-SE?

My question is indeed quite simple but I didn't find a clear definite answer by the usual method (aka Google), so I turn to this great community I have an asus P6T-SE motherboard which includes an ...
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1answer
1k views

RAID 1 Mirror Error with Two Western Digital 500GB Drives

I have Windows 7 Ultimate 64 bit installed on a Western Digital 500GB drive (WD5000BEVT-22ZAT0) that was partitioned automatically by Windows as 100MB System Reserved and 465.66GB drive C. There is ...
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How to fix missing RAID1 drive

I had to do some fiddling about with my cables inside thebox and now I am getting a "Critical Error" about the RAID disks during startup. I have a gigabyte GA-MA770T-UD3 motherboard. Aparently the ...