RAID stands for Redundant Array of Independent Disks, and is a technology which can provide increased reliability, performance, and/or redundancy by utilizing multiple hard drives simultaneously. RAID can be implemented in a computer via either a hardware or software controller.

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Three disk (possibly RAID) data recovery

I have on my desk three 160 GB disks that were once part of an HP Proliant Windows 2003 Server. They may have been part of a RAID configuration of some sort. They may or may not be damaged in some ...
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20 views

Non Raid - Symbolic links

I have 3x 3TB drives and 2x 1TB drives. I want to use all drives without RAID, but to be shown as a single volume. So that if a drive fails only the information on that failed drive will be lost. ...
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How do I import Outlook 2007 accounts and rules and IE usernames and stored passwords from old HD?

I had an older PC running Win7 and the motherboard died on me. I've since updated my PC to another Win7 machine running a RAID 0 along with my old HDD installed as an extra drive. The problem is, I ...
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213 views

TrueCrypt Windows 7 Software RAID: add mirror to system encrypted drive

I have my Windows 7 system drive fully encrypted with TrueCrypt 7.1a using "system encryption". Now I have a second, identical, empty drive that I'd like to use as a mirror of the system drive. In ...
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329 views

ASUS P5B Plus motherboard - no any drives found - how to restore RAID array?

We have a small server machine with an ASUS P5B Plus motherboard and 4 SATA HDDs. The HDDs were configured in a RAID10 array. Up until now, everything worked fine, but now the system doesn't recognize ...
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59 views

Could I have destroyed Partitioning-Scheme/Filesystem of HDDs with External Harddrive Case with builtin Raid-Controller?

I had just recently bought a Fantec QB-35US3R to have a nice box on my desk to make some backups to. Along with the HDD-Bay I had ordered some 4TB HDDs to let them run in Raid 5, which is handled by ...
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28 views

Splitting a drive which has layout as mirrored and type as dynamic

I have a C drive/volume in my server with layout = mirror and type =dynamic and status as healthy(boot,pagefile,crashdump). I have some questions regarding this configuration: I think it is a raid ...
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71 views

Use the speed of an SSD + two HDD in RAID 1

Is it possible to gain a speed benefit of an SSD if you create a software raid with a big SSD + two smal HDDs? At the moment I have a system with only two 320GB HDD. And I thought about inserting a ...
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34 views

Ubuntu RAID hardware update

I have a RAID1 (Intel Raid controller), but I have more 2 slots in my server and I'll put there more 2 disks to create another RAID1. I never did it, the only thing I did is simply add standalone ...
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1k views

How to remove a hard drive from an Intel RST RAID configuration?

Background I'm on a Windows 8 machine. I had 2 x 1 TB HDDs in a RAID1 configuration utilizing the Intel RST software. One of the HDDs went bad according to Intel's RST application I removed the hard ...
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137 views

Power loss during mdadm RAID level change

As per the title, my mdadm RAID was in the process of migrating from level 6 to 5 when the power cut out momentarily. Unfortunately I am no longer able to reassemble the array - the assemble command ...
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54 views

For raid1, does btrfs check which partitions are on the same device?

I have btrfs on two partitions using btrfs's raid1 mode: /dev/sda3 /dev/sdb3 Now I plan to run btrfs device add /dev/sda2 /dev/sdb2, so I'll have four partitions: /dev/sda2 /dev/sda3 /dev/sdb2 ...
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2answers
100 views

Raid0 assemble disk again?

Our server recently suffered a disk failure, so our hosting provider put a new Disk in with CentOS so we can login and see if we can recover the data. We had 2 x 120 GB SSD drives in software RAID0 ...
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1answer
510 views

RAID1 w/Intel RST — can I replace failed drive with bigger drive?

The Setup I have 2 x 1TB drives in a RAID1 configuration. One of the hard drives has failed and so my RAID situation is degraded. All data is backed up via Backblaze as well so I'm not worried about ...
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51 views

Unknown RAID Recovery?

I have an uncommon situation. I work as as IT administrator, I recently came across a box of ten hard drives that came from a company that we purchased a few years ago (before I started with this ...
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59 views

Raid drives missing filesystem

I recently had to do some troubleshooting with a RAID 5 on Ubuntu Server (a software raid). I ended up removing everything and start from scratch with 2 new drives. So I took out 2 out of 4 drives, ...
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100 views

Arch Linux: Gummiboot does not find /dev/md126p8

I want to install Arch Linux with Gummiboot loader, but Gummiboot does not find my disk /dev/md126p8. The disk is an Fake-RAID (RAID 0 between /dev/sda and /dev/sdb), so this might be the reason for ...
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152 views

Forgot to turn on RAID after flashing bios, now have, but can't boot

I was having bsod issues with my windows 7, raid 1 (intel rst) machine and so decided to flash to the newest asus bios. I think that part went well, but when reconfiguring the bios, I neglected to ...
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64 views

How to undo accidental RAID initalization operation (recover data)? [duplicate]

Summary of the problem: I have two disks re-configured as RAID 1. instead of copying the data to the empty disk, it deleted the data from the non-empty disk. Here's what happened: 1. In the last few ...
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42 views

Virtual lab hardware and HDDs

I have a bulk of HDDs (10) and i want to build virtual lab on Hyper-V.I have gigabyte motherboard on Z77 chipset with 4 sata2 and 2 sata3 ports, and intel build-in RAID controller. Now I am looking ...
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78 views

Harddisk life span Striping vs Spanning

Will striping two disks reduce life span of a disk due to increased write load compared to spanning where the disks are filled one by one?
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45 views

Rackmount HDD storage [closed]

Looking into some storage solutions for a small server. I've got a Mac mini running OS X server providing open directory accounts for all my machines (which are 98% OS X save two Windows machines). ...
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73 views

Independence of SATA channels and ports

I'm working on setting up a simple RAID and am wondering about how independent my SATA ports really are. There are 4 ports on the motherboard, but lspci shows only two controllers 00:0e.0 IDE ...
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195 views

Is it currently stable to use, and boot to, a btrfs RAID 0 on SSDs?

As of the current (3.10+) Linux kernels, is it supported to make a btrfs RAID 0 out of SSDs the root mount and boot to it? This comprises several issues: Does the RAID 0 with SSDs support ...
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45 views

How do I prevent anacron from running certain scripts?

I am running RHEL5 and software RAID (mdadm). Currently I allow the 99-raid-check weekly cron script to run at the normal time (early Sunday morning). However, if the system is off during that time it ...
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28 views

A few questions about windows 7 snapshots

I have been googling a while, but I am a bit confused about Microsoft VSS technology. Currently I am running Windows 7 Enterprise 64bit - everything patched to the latest versions. My system has one ...
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5k views

How do I tell my PC's RAID configuration

EDIT Just a quick reword of my original question... Using Windows XP how do I determine which disks/drives/partitions are under the control of of my hardware RAID1 system? My original question: My ...
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100 views

Lenovo BIOS logo prevents Dawicontrol RAID controller BIOS utility to show

I just ran into a really odd problem. I recently installed a Dawicontrol DC300e RAID controller on my Windows 7 64-bit Lenovo H520s desktop. In order to set up the RAID groups, I need to enter the ...
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2answers
360 views

HDD + SSD Raid 0, does it make sense?

On my laptop, I have a 22GB SSD and a 500GB HDD. I just reinstalled Windows and because of some problems, I reset everything in Intel RST. In the end I ended up using a 44GB Raid 0 partition, but now ...
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327 views

CentOS - Software raid - Kernel not booting - initrd?

Centos 5.9 64 bit on Raid 1 using mdadm. We have been trying for almost 2 days now to get this back going and have exhausted the resources and our minds on it, I would be glad if somone would point ...
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26 views

creating new raid 5 volume

I recently purchased and installed a HighPoint HIRR2640X4SG RAID Controller card. I installed three 2 TB hard drives, and created the array: I booted and went into Disk Management in WHS 2011. I ...
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One of two RAID 1s is not recognized in Ubuntu 13.04

I have a 256GB SSD (Ubuntu/Win8), and two 1TB drives in RAID 1. The problem is that I just recently added another two drives that are 4TB in RAID 1 but they aren't detected in Ubuntu as one drive but ...
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152 views

Can I emulate a NAS OS on Windows 7 with an extra network adpter?

I want to setup a RAID NAS but I don't want to buy another computer or lose the game library of my Windows i7 system. Therefore, I'm wondering if you could just use an emulator to run a NAS OS in the ...
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66 views

Best practice for configuring hard drives in a virtualized environment

I want to play around with some distributed processing software. I intend to use KVM on an Ubuntu box to create 4 virtual machines and run CentOS on them. Ubuntu is installed on a 250 GB SATA drive. ...
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98 views

Replace two hard drives for one new hard drive do I have to change the RAID setting?

I have an old very usable Sony VAIO AR 590E. It was getting a bit sluggish so I reinstalled the OS (vista) and I replaced both both hard drives with a single solid-state hard drive (Samsung). Have ...
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38 views

Concept for a USB RAID system by means of switch [closed]

I'm planning a domestic USB RAID system. My ideal design would be something like this: USB 3.0 _____________________________________ -----------1 [] [] [] [] [] [] [] [] |___ AV in case ...
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158 views

XFS in-memory corruption after hibernate

I am constantly getting the below errors with XFS filesystem present on software raid-1 which was then converted to 3-disk raid-5. Errors happen exclusively after hibernate, normally either ...
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2k views

Can't install windows - setup can't see my hard disk (RAID1)

I am trying to install win8 x64 on my machine. The machine has two hard drives connected in RAID1 I have just created : image I have inserted the USB containing the Windows installation media and ...
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152 views

Synology hybrid RAID

I thinking about buying Synology NAS. I prefer to have, for example, two discs (1 TB), but only part of them used as mirrored (protected) storage. For example 200 GB of both discs used as 200 GB ...
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169 views

RAID 5 degraded performance

I'm currently rebuilding my fileserver, but because of SATA port limitations, I can only use 5 disks at a time. I've remove a drive from my original RAID, so I've been able to create a new degraded ...
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181 views

Rebuilding a RAID 1 without data loss, recover from unallocated partition data

• Mobo: ASUS P8Z77-M/Pro Gen 3 • RAM: 32GB (4 x 8GB) • Power Supply: corsair HX850 • HDDs:Configuration before the problem: 1 x 128GB SSD for Windows 7 professional 64-bit 2 x 3TB ...
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335 views

Error on rebuilding Linux raid-1

I have a linux box which acts as a home NAS with 2 x 1 TB hdds in linux raid-1. Recently one of two drives failed, so I bought a new one (1TB WD Blue) and put it on. Rebuilding starts and stops at ...
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73 views

How do I achieve software raid 4 array with different size disks with the largest disk being the parity?

For the last year I've been using a piece of software named unRAID built on top of slackware to host my NAS. I feel like I want to move on and evolve and build my own NAS setup on top of another ...
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263 views

Assembling an mdadm array with “possibly out of date” disks

I've recently moved house and have had some power problems after switching on my file server that's using a mdadm RAID5 set up. The file system I'm using is ext4. It seems that at some point two (of ...
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What is the disk/partition size limit of ReadyNAS Ultra 4?

I'm currently using a NETGEAR ReadyNAS Ultra 4 with 3x 3TB hard disks in X-RAID2. Soon I'm going to add a fourth disk which will give me 9TB of space plus one disk for parity. My question is; is there ...
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200 views

Running multiple RAID-1 arrays on the same server

Is it possible to run multiple RAID-1's on the same machine? I have the following Motherboard: http://www.newegg.com/Product/Product.aspx?Item=N82E16813182251 Would I need to get RAID cards?
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SATA-II SSD Raid 0 slow on Windows-7

I have 2 SSDs and made a RAID 0 with the on-board controller of my mainboard. But i only get 130 megabyte/second average read/write speed which seems to be pretty slow for me even for SATA 2 which ...
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257 views

/dev partition missing, so mdadm broken. How to get Linux to see partition?

Upgraded a Linux box and changed out the root drives. There was a RAID-5 array of three SATA drives that I moved over (not root). Reinstalled the OS but was CentOS 6.4 before and after. # mdadm ...
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25 views

NVidia raid 5 array spooling sounds and delay

I've had a raid 5 array setup with 3 2TB WD Green drives for about 3 years now. Starting last week, when I would access the array for the first time, I hear a loud drive spooling sound and experience ...
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133 views

Create a mdadm raid mirror of an existing lvm

Hello I'm trying to figure out how I can create a pretty strange mdadm mirror of my lvm. I have 4 disks, (sda,b,c,d). Each disk has 2 partitions: 1Gb - physical volume 500mb - Swap My system lvm ...