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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Exchanging harddisk of Medion Akoya MD-98634 laptop

I am trying to replace the original 1TB harddisk of my Medion Akoya (MD-98634) with a Crucial BX100 SSD (250GB). This is what I found out so far: The original setup is running the 1TB HDD in a RAID ...
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49 views

Recovering 1TB hard drive split into two 500GB drives without formatting

I am using Windows 7 and am trying to recover two working drives. The hard drive in question was: http://www.newegg.com/Product/Product.aspx?Item=N82E16822204022 I am pretty sure they were ...
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21 views

External Hard Drive Used for a File Server [on hold]

I'm starting a small server farm serving my surrounding community, my goal is about 100TB capacity with no redundancy necessary. It's going to be an ubuntu machine with VM running windows server. ...
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13 views

Cannot get RAID working with Mac Mini after adding drive

I had a working RAID array with 3 2TB drive in an external Startech.com SATA enclosure that was set to RAID5 I wanted to add another 2TB drive, so I added the drive but according to the manual, I ...
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19 views

Linux machine with RAID 1 not booting after failed drive

I’m not that experienced with Linux and am troubleshooting a machine that is no longer booting up. Originally it had two drives installed in RAID 1 and one drive failed. I took the good drive out and ...
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5 views

SAS drive replacement in Proliant server and compatible drives [migrated]

I am use an Prolian Server ML350-G5. The server has got two disk in RAID 1+0. The model of the disk is 432320-001 (146GB). One disk has shown an ambar light that means the disk needs to be replaced ...
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12 views

How to configure RAID on Toshiba Satellite P500-15e laptop?

I had bought a laptop (Toshiba Satellite P500-15e) when studying in France. Once I installed OpenSuse linux and regarding the fact that I didn't know anything about it, I had to erase it. ...
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2answers
31 views

RAID 1 accidentially booted in AHCI mode

I have two Samsung 840 EVO SSD's in RAID 1 (Asus P87-Pro and Intel Controller) with Windows 8.1 Pro on it. After a BIOS update, apparently all BIOS settings was reset, which apparently changed the ...
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57 views

How to install linux mint 17.1 to encrypted raid 0 array

I just got a new SSD and I wanted to install Linux Mint 17.1 to a raid 0 array of SSDs. I also want the array to be encrypted. I tried the following guide and got mdadm to setup a software array and ...
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40 views

Mix 3 different sized hard drives into a RAID 5

I’ve got three hard drives different sizes and I want to create a RAID 5. The three drives—all Seagate—are: 1.5 TB 3 TB 700 GB Is there a way to RAID these or is it possible to do the folloiwng: ...
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29 views

RAID5 active device failed during reconstruction

I have this Linux RAID5 array with 4 2TB harddisks, with 3 active device and one spare, giving me a total disk size of around 6TB. Recently one drive (sdd) is starting to give me some SMART errors, ...
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23 views

My CentOS RAID-10 array won’t boot

My RAID array won’t boot and gives a kernel panic. Any attempt to kill init message and goes into endless reboots. Motherboard is a Supermicro 2P with Opteron 2376 4-core CPUs, CentOS software RAID, ...
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25 views

Rebuilding FakeRAID RAID 5 with new disk, no partitions show up, invalid PMBR

I have a RAID 5 array with 4 2TB disks on a HP Z800. One disk failed and was swapped out for a new one. I went into BIOS Intel Storage Matrix Utility and set the Array to rebuild with the new disk. ...
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1answer
26 views

Problems creating a bootable RAID volume when imaging from HDD to SSD

I have an old Dell XPS420 with an Intel RAID controller on the MB. For years I’ve had RAID 1 enabled on a 2x1TB array set up as two volumes: A 300GB volume which has Windows 7 installed on it and the ...
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1answer
43 views

Recover data if PC (motherboard) fails with software RAID 5

I'm planning to implement a RAID 5 (or 6) system on an old PC (windows or linux). It doesn't have HW RAID 5 support so I'll do it via software (e.g. windows integrated RAID). Will I be able to ...
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29 views

How to transfer software raid from windows to linux?

I have a software raid 1 on my windows 7 machine over 2 hard drives and for various reasons, mainly my windows 7 machine wont work correctly over the lan for some reason and no solution in sight and ...
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1answer
16 views

Is there a way to reformat a RAID array without losing existing data on the disks?

I have a RAID 10 comprised of 4x 4TB disks. It is currently formatted in XFS on a CentOS server (The server's root directory is is not on the RAID), and I've been looking at replacing XFS with ZFS ...
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30 views

upgrade (software) RAID 1 capacity

I am upgrading a software RAID 1 array (/dev/md0) from 2TB drives (sda and sdb) to 4TB (sdc and sdd). Straight forward; ext3, single partition, no MBR, no LVM. In the end, I would like to have two ...
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1answer
29 views

What happens when a RAID rebuild fails due to URE?

I understand that when a disk fails in a RAID configuration, whatever the RAID level you're using (1, 5, 6, or 10), you need to replace the failed disk and the array rebuilds. Now with large capacity, ...
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2answers
21 views

Linux fault tolerant array for home server

Is there any method of creating a fault tolerant disk array with a mix of disks? I intend to use debian linux stable as a file server for home. The data is going to be cloud backed up but I don't ...
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37 views

Do I need a UPS with a RAID-configured NAS

In order to keep my home file archive safe, I've bought a Synology NAS and configured it to use a Synology Hybrid RAID configuration. Now almost a year since I started feeling safe about the years of ...
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228 views

How do PCI express RAID cards work?

I was recently playing with Xen server which supports hardware RAID only and as I always used Linux MD's only so far, I have no knowledge of hardware RAID at all. I was looking for some cheap hardware ...
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63 views

Two SATA-3 vs four SATA-2 SSD drives in RAID 0 [closed]

I have a relatively old motherboard (msi BIG BANG-XPOWER) that has 8 SATA ports, 6 of which are SATA-2 and 2 of which are SATA-3 and I'm thinking of creating a RAID-0 array of two or four SSD drives. ...
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13 views

Reading a single disk from RAID1 set (Intel Matrix)

I have an Intel RAID (ICHxR), where a RAID1 set has a failed disk. The problem is that the RAID volume is inaccessible, even though there's one healthy drive still in it. I tried removing the failed ...
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1answer
39 views

Windows restore saying partition is too small. It isn't

I built a media PC years ago with three 750 GB drives in a Raid-5 configuration. This allowed for 1.5 TB of space and had redundancy. At the time I didn't know how bad performance was with RAID. I ...
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85 views

Btrfs: RAID 1 on 3+ devices

I currently have a Btrfs partition with four devices: three 3 TB drives and a 4 TB drive. Data and metadata are RAID 10, so I have 6 TB of usable space, which is almost full. I'd anticipated that RAID ...
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2answers
48 views

Speed up ubuntu on desktop by moving some directories to a faster storage

I want to speed up my ubuntu install a bit. I was using a RAID1 setup for the whole system (separate md for /home and /). Now (thanks to ...
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21 views

Hp ML310e gen8 + P222 + debian / ubuntu

Is possible to run this configuration 2 disk raid 1 on b120i integrated controller for linux debian or ubuntu system, and 4 disk raid 1+0 on P222 controller for data storage on Hp ML310e gen8 ...
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1answer
67 views

Hard disk error in Intel Matrix Storage Manager

I have two hard disks, both 160GB, and with Intel Matrix Raid on these two disks, I created two volumes Volumne0 Raid1 Volumne1 Raid0 Now, one of the hard disk shows error in the Intel Matrix Raid ...
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1answer
45 views

How would hardware RAID compare to Windows software RAID?

I recently bought a new PC with a Gigabyte Z97P-D3 motherboard. One of the things it supports that my old machine didn't is RAID so I had planned to transfer my 2x 1TB hard drives from my old machine ...
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118 views

How to create a Mirrored Volume in Windows 8.1 - mirror option missing

I am trying to create a mirrored volume (RAID-1) in Windows 8.1 (standard edition, not Pro). This is a new Windows 8.1 installation. I have two 500GB drives attached to SATA ports, neither of which ...
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21 views

activate a raid1 array with a single spare disk

in a linux raid1 with 2 disks, one disk (sdb) died. i replaced the disk and rebuilt the array. during the recovery also sda begins to give i/o error. the recovery reach 100% but the raid status is ...
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68 views

Does Intel H97 support RAID5 and RAID1 at the same time?

Can anyone tell me if modern mainboards with the Intel H97 chipset that claim to support RAID0, RAID1, RAID5 and RAID10 also support RAID1 and RAID5 at the same time given 6 SATA HDDs? What I want to ...
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1answer
89 views

Windows 8.1 stuck at startup after deleting the OEM partition (Intel Rapid Storage technology crash)

I have a Lenovo U410 laptop which have a 1TB hdd and a 32gb ssd. The ssd is used for speeding up the startup time with Intel Rapid Storage Technology. The partition table for the SSD looked something ...
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2answers
78 views

Converting Boot drive from RAID0 to RAID1

I bought a HTPC I plan on using as a NAS/HTPC combo, which has been working well for me for a while now. When I bought the machine from Dell, it came with 2 500GB HDDs in a RAID0 configuration as ...
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1answer
45 views

Firmware RAID drive assignment suddenly missing - How to add it back?

I have an ASUS Sabretooth 990fx R2.0 motherboard, and I have three HDD's in total. 2 x 250GB Samsung EVO SSD drives and a single WD 1TB HDD. I had set up my 2 SSD drives in RAID-1 configuration ...
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42 views

mdadm grow from RAID1 to RAID10

I've seen this post about how to convert from RAID1 to RAID10, but reading the mdadm manpage seems to me recent mdadm allows for reshape from RAID1 to RAID10 by going through a reshape from RAID1 to ...
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1answer
59 views

Mystery partitions with dynamic disk RAID 1

I have mystery hidden partitions at the beginning and end of the hard drives in my Windows RAID 1 volume and I am trying to find out what their purpose is. Here is the scenario - Before installing ...
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75 views

Trouble with shrinking Synology RAID array

I purchased a new Synology, and copied most of my data over to the new device. The data I've left behind isn't worth professional recovery, but I'd like to have it if possible. There wasn't room on ...
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37 views

Re-merging two disk that used to mirror each other

I have had two hard disks that mirrored each other (RAID 1, software based). After I recently plugged them out of the mother board and plugged them back in, this mirrored volume was unavailable. I ...
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1answer
40 views

Proliant ML330 G6 rebuild array

When I came to this place, there was a Proliant ML330 G6 server with a P410i controller standing here, which acts as the active directory server, running Windows 2008 R2. I wish the previous admin ...
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34 views

RAID setup - possible to disconnect a drive?

this may be a silly question for some, but I rather ask then to be sorry after losing my data :-] I am just playing with RAID config on my Intel X58 ICH10R chipset mobo with Windows 8.1 and I found ...
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1answer
43 views

Take RAID 1 too much CPU performance (Intel Pentium G3220)?

I'm currently building an home server. I'm using an Intel Pentium G3220 CPU. I want to configure RAID 1 for the two 3TB Western Digital WD30EFRX Red HDD in the server. My question is if software RAID ...
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51 views

how to trim the SSD disk of an hybrid Linux soft RAID?

We are considering implementing an Hybrid Linux Raid with SSD+HD by using the "writemostly" flag that supposedly makes the raid write further to the HD than to SSD while maintaining the benefits of ...
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2answers
32 views

Moving a RAID 1 between RAID Cards

I have an HP DL380 G6 with the 410i internal controller. I have an array configured with 2 drives as a RAID 1. This logical drive is my boot drive. I've recently installed a P800 raid card and want ...
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1answer
90 views

Cannot setup Intel RST

I bought an HP Envy Sleekbook 14 that has a 500 gb hybrid drive (24 gb ssd, ~470 gb hdd). The computer has Intel Rapid Storage Technology support, and it was working when I first booted it up. ...
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37 views

Windows 7, can I mirror directories when I got one HHD? (like RAID) [duplicate]

In Windows 7, lets say I have a "works" directory which containts my work, personal etc information. I want to use a program which always checks the disk and make mirror(s) of this directory. ...
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17 views

Pegasus R6 Thunderbolt raid with CentOS 6.5

We have ourselves a rather expensive Mac Pegasus R6 external thunderbolt raid and a CentOS box that we would love to use it. On a Mac it's plug and play, however on our CentOS box it's not recognized ...
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23 views

Is the software raid provided by windows compatible between windows xp, 7, and 8?

Is the software raid provided by windows compatible between windows xp, 7, and 8? I think some of the newer RAIDs will not be compatible, but will specifically "mirroring" (RAID 1) be compatible ...
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131 views

Simultaneous failure of 8x SSD's in raid 10 [closed]

My friend keeps arguing with me about putting SSD’s in raid vs HDD, I need to settle this. What are the odds of all the SSD’s failing vs HDD”s at once assuming they are from the same assembly line and ...