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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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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197 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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68 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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143 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
927 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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67 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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69 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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120 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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181 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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103 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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51 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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111 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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49 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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0answers
92 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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1answer
234 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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1answer
56 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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32 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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3answers
10k 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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2answers
745 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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1answer
31 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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523 views

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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275 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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104 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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1answer
47 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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1answer
308 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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1answer
3k 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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191 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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1answer
308 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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209 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 drives in RAID 1 on the ...
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3answers
718 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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89 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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503 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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1answer
276 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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103 views

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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2answers
316 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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173 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 ...
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1answer
225 views

Trying to clone raid (striped) To USB Hard Drive

I am trying to clone a raid drive that was striped over to an external USB hard drive. I have tried Paragon in both clone and image and restore, EaseUS in both clone options, and Acronis. Nothing ...
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1answer
88 views

Any Major Issues Changing OS X RAID Volume Name

When I set up my RAID 1 array to hold all my data, I called it Data RAID. The space in the name is now beginning to bite me with programs that can't handle spaces in path names. I want to change it to ...
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120 views

SSD RAID Controller, 6Gbps bandwidth limit for the whole controller or per SSD [closed]

We are looking to buy raid controllers and 4 SSD's in raid10 on it, will the raid controller be a bottleneck of this setup?
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1answer
901 views

Build a degraded RAID 1 on Intel's Z87 chipset?

New motherboard comes in tomorrow, it's an ASUS Z87-Pro, and given the HDD scares I've had recently, I've decided to use a few new drives in conjunction with the old ones in two RAID 1 arrays. (yes, I ...
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1answer
44 views

Onboard RAID w/ Recovery

I am looking at purchasing the ASRock Z87 Extreme 6ac and I was unclear on if I should use onboard RAID or a dedicated card. My system will be well enough off that I won't have to worry too much on ...
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1answer
121 views

Is it safe to “use” to disk if extended smart check is in progress?

As simple as the title suggests. /dev/sda is a unit from /dev/md127 - RAID1 drive. I'm currently running a test - started a smartctl -t long /dev/sda. Afterwards, I started to copy files over ...
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1answer
677 views

D-Link DNS-320 Degraded RAID-1 will not rebuild…? any suggestions?

I'm not sure what caused it but it just keeps looping the rebuild process. Gets to 100% of re-syncing and then starts at 0% again... Just interested in a solution but not finding anything with ...
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1answer
125 views

How can I image and restore Windows 7 on a Intel Rapid Storage RAID?

I have some Dell machines using with this card with an 32G SSD and a 2TB HDD. Every live environment I've tried so far has not seen the OS drive. I've tried these: Acronis Clonezilla Ghost Easeus ...
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11 views

Windows 8 RAID 1 - notice but all disk marked as OK [duplicate]

Windows 8 prompt me that raid save error and advise to check HDDs, but all the HDDs are marked as "OK". How could that be possible? Screen are in russian but I hope they are clear. ...
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754 views

Software RAID in Debian

I have two internal 4TB hard drives and I've just started using software RAID1 in Debian Wheezy. I have a few questions: 1) During boot, everything passes except I get a message that reads "RAID ...
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229 views

Using GPT but still restricted by the 2.2TB limit

As my other thread (Debian GNU parted) doesn't seem to be getting any responses and my situation has changed considerably, I thought I'd ask a new question. I followed this article: ...
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1answer
214 views

RAID0 SSD performance degredation

I have a computer built to acquire uncompressed 2048 x 2048 16 bit images at 100 frames per second in real time, writing to disk. A RAID0 of SSDs is thus the only option. For the past month or so, ...
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1answer
67 views

Battery test on Areca ARC-1231

I have a system built around an ARC-1231, and since a few days, the battery is always shown as "Charging (96%)". As this looks fishy to me, I'd like to test the battery. As I haven't found anything ...
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3answers
406 views

How to set up a FTP server

I am in need of creating an FTP server that can be accessed across the internet; with a bunch of space. I currently have a computer that I'm considering using, though, if it is not deemed to be good ...