Questions tagged [software-raid]
Questions which refer to software RAID implementations.
502
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Most cost effective and fastest RAID array?
I had a SSD, and it failed and I lost all my data. Sad day..
What I want:
To make a RAID 1 array to have all my data mirrored onto 2 drives and backed up. I want to use and have SSD speeds(important),...
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How to recover data from software RAID 5 disk partition
I have CentOS 5.8 on my computer, with 5x 1TB hard drives.
I used software RAID. (RAID 1 as a boot partition md0, RAID 0 as a root partition md1 and RAID 5 as /home partition md3).
Unfortunately one ...
- 130k
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1
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Am I OK to replace motherboard and add new RAID card with this RAID setup?
This post here:
New motherboard or new PC to gain access to RAID drives
Suggests that if I am using a software raid, I can swap out the motherboard with no issue as long as I am using the same OS.
...
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Unable to reassemble RAID10
I'm not sure if this is the community to ask but I thought I would give it a shot:
Our server that runs a 14 drive RAID10 through a rocketraid 2470 controller refused to assemble. Our goal is not ...
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Auto-rebuild RAID6 with MDADM
I have an openSUSE 11.3 Linux computer with 5 disks of 1TB (WD enterprise disks) in it. With mdadm I configured a RAID6 device.
Now, after a lot of thorough testing, I've noticed that when the ...
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3
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Raid 1 mdadm (linux) disk failure recovery: DRDY err (UNC) keeps repeating can't reach login
Over the weekend, I got several emails from our network storage server (just a custom box with CentOS 5 and 2 2tb drives software raid 1) indicating SMART detected issues with one of the drives.
I ...
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Re-Initialize RAID-0 in software after card failure
I'm working on a Friend's WD MyBook "1TB" HDD that is not mounting. When I got in to it, I discovered that it is really 2 500GB HDD's set up as RAID-0. It appears that the drives themselves are fine,...
- 130k
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2
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Import foreign disks in RAID-0 config
I've to import 2 disks in RAID-0 into another computer. Both source and target PC run Win8. In the target PC I see two foreign dynamic disks and when I right-click on any of those and then I select "...
- 344
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1
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New RAID-5 volume is grayed out
I try to create a RAID5 volume with 5 disks, all 5 are exactly the same
(5x Seagate thin 250GB)
Disk Management can see every disk, also I can choose every RAID except the RAID5.
Because, I love ...
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16
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Can I setup a software RAID in Windows 7 using Virtual Hard Disks?
Well, the title of my question pretty much sums it up, but let me elaborate. The main idea of what I want to do is as follows:
1) I have two separate hard disks, with nearly equal performance. I use ...
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1
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Can I create a degraded mdadm raid10-near (raid 1e) array?
I have three drives in my current system (all 1TB). The current setup is:
sdb - raid0 member (failing soon)
sdd - raid0 member
sde - backup
I'd like to change it so all three drives are part of a ...
- 191
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190
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AMD SP5100 Raid 0 rebuild
I was using an onboard AMD SP5100 raid controller for a Raid 0 on two 1TB drives. The motherboard has failed. I have two questions - firstly if I replace with an identical motherboard, will I be able ...
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Eight-disk RAID-Z2 array has less capacity available than expected
I have a problem to explain the missing capacity in my raidz2
# zpool status -v nas
pool: nas
state: ONLINE
scan: none requested
config:
NAME STATE READ WRITE CKSUM
...
- 43
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2
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617
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Linux RAID Mirror only half size
I just bought a couple 4TB WD Reds and for some reason when I try to mirror them the resulting array is only 2198.9 GB large.
Both disks are formatted as Linux RAID Autodetect (ID fd) with fdisk, and ...
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1
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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 /dev/...
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1
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mdadm assembles degraded RAID 5 as RAID 0
I have a four disk RAID 5 set up under kubuntu 16.10. One of the disks failed and I am waiting for a replacement to arrive. However, my computer froze at some point and now mdadm tries to assemble my ...
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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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1
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How to clear RAID "Error Occurred(0)" member disk message?
I had a bad SATA cable which caused an "Error Occurred(0)" message to appear on one of the member disks. I replaced the cable and everything works fine now, but the message remains and the RAID logon ...
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1
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Setting up Intel RST on Ubuntu 12.10
I want to know if it is possible to set up caching using my notebooks mSSD that runs ubuntu 12.10 and Win 7 on the HDD. I use ubuntu much more and would prefer to cache files that it uses rather than ...
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How to install windows 2012 drivers for intel ICH8 raid?
I must install windows 2012 on a Dell T5400 precision workstation.
The computer has 2 SSD configured in RAID 1 (mirror).
I cannot find drivers to report their state in windows. There is no point to ...
- 65.3k
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Correct kmod-megasr driver to install CentOS 7 on Intel Embedded RAID Technology II?
I am trying to install CentOS 7 on a server using RAID 5 on Intel Embedded RAID Technology II. I did need to install a special hardware key to unlock the RAID 5 feature.
I have succcessfully ...
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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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Restore RAID 0 storage volume after Windows 7 re-install?
I have a RAID 0 storage volume in Windows 7 with 3 disks and I want to re-install Windows to the OS drive. If I do this, will Windows recognize the previous RAID array and configure appropriately?
...
CommunityBot
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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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1
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279
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OK to use Windows while a RAID array is building?
I've just put together a nice clean, fresh install of Windows 7 x64, and my two primary harddisks are building a software RAID1 array in the background while I type this.
But I want to move over ...
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Software RAID0+1 using 3 disks
Is it possible to use mdadm to do RAID0+1 using 3 disks?
My scenario is 1x2TB disk and 2x1TB disks. Not interested in the RAID0 performance boost, just want to combine them so I can mirror them with ...
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Create a mirrored array using an existing drive
Using OS X, I have a 1 TB hd. I have an empty 1 TB that I want to use to create a mirrored array. All the instructions I can find about creating the mirrored array require copying the existing hard ...
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Need to recover RAID0 disks from failed linux box
I have two drives from a failed old Linux box that were configured as RAID0.
I have created two dd image files using the following commands on my Mac:
dd if=/dev/disk3 of=disk0.img.dd bs=512
dd if=/...
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437
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btrfs convert raid 5 to 1 with usage filter possible?
does btrfs support converting the filesystem partially?
I am currently in this state:
btrfs fi df .
Data, RAID5: total=9.83TiB, used=7.68TiB
System, RAID1: total=32.00MiB, used=704.00KiB
Metadata, ...
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266
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RAID0 data recovery & recovery strategy validation
I have a Synology expansion (DX213) connected to my NAS. It houses 2 disks of 2TB and they are in a RAID0 configuration (awful idea, I know and I don't need a reminder ;) ). Last weekend, the array ...
- 101
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MDADM Raid6 Array only able to read parts of files
I run a ubuntu nas with raid6, mdstat does not indicate that anything is wrong, but when i try to read files on the raid volume, i am only able to read about 1/4 of the file, and the file transfer ...
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Storage Spaces - Parity vs Mirrored or Single with Robocopy
So I'm thinking of dropping my Synology RAID 6 NAS and upgrading to Storage Spaces. I have a number of dissimilar sized drives and Storage Spaces would allow me to use those. My NAS is maxed out at ...
CommunityBot
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Mounting raid5 disks without one of raid's member
I have to read data from disks, which are raid5 members. I'm wondering if there is posibility to read data from those disks somehow, but one of those disks is just broken. I was trying to mount some ...
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Is a btrfs RAID1 mountable if the added device isn't available/offline/failed/degraded?
Assume I created a RAID1 with btrfs's functions (btrfs device and btrfs balance subcommands instead of mdadm) like so:
btrfs device add /dev/sdxZ /dev/sdxY
btrfs balance start -dconvert=raid1 -...
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643
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Clonezilla and software RAID array theory
I don't have enough hardware to try this out myself, but since Clonezilla doesn't support backing up software RAIDs, I've been trying to think of ways to backup my RAID0. Since all of the information ...
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RAID 6 Resync after system crash
I am running a home NAS server for data storage using linux (ubuntu) and RAID 6 configuration (using MDADM), however, occasionally the server crashes/hangs or experience a power-outage/interruption of ...
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Recover Linux software RAID5 array after server upgrade
I recently upgraded a server from Fedora 6 to Fedora 14. In addition to the main hard drive where the OS is installed, I have 3 1TB hard drives configured for RAID5 (via software). After the upgrade, ...
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Linux software Raid5 DegradedArray with mdadm
So I changed my case and I don't know why but one my SATA port does not work anymore. So only 5 of my 6 RAID5 disks were recognized. The volume was automounted anyway and I already wrote new files on ...
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Any performance gain by putting Windows Pagefile.sys onto an Software RAID-0 Striped Volume?
I have a workstation class laptop running 64bit Windows-7 with 8GB-RAM (expandable to 16GB) and Dual SATA2 7200rpm disks.
I know my system will be making heavy use of the pagefile since I will be ...
CommunityBot
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Use software RAID 1 drive as main disk and boot drive in windows 7?
Can I boot from a software RAID 1 (mirroring) drive in windows 7?
Windows 7 would not let me install to a software RAID volume so I installed to the first disk and then added the second disk ...
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Debian pvmove of root lv into raid10 device resulted in unbootable system
I was in the process of moving logical volume extents onto an raid 10 array assembled with mdadmin. One of the logical volumes moved was the root directory (debian testing system) which was previously ...
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Access Western Digital My Book World II RAID array on my Ubuntu Linux
My WD My Book World II (Blue Rings) NAS has overheated, I think the motherboard is dead. I extracted the disks and plugged them in my desktop PC running Ubuntu Linux.
The disks seems to be alive, ...
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Does rsyncing a Linux boot disk require any caveats to run off the copy?
The new server to run CentOS7 is on order. It will have a 60 GB SSD for CentOS 7 and four internal hard drives. The internal hard drives will run in a software RAID1 for three disk mirroring plus the ...
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Unable to assemble mdadm array due to lack of errors
My virtual machine host system is running Debian 8.4. I had to restart the system yesterday and did not yet manage to get my mdadm array up and running again. I can boot up normally, but no array (or ...
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Is mixing software RAID disks across SATA and eSATA going to have any issues?
I have two eSATA drives running successfully in a software RAID on CentOS. I would like to make this a three disk mirror RAID by adding the third drive from the internal SATA drive. Are there any ...
- 65.3k
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753
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Why does Dell PowerEdge T330 force hardware RAID for 8 drive configuration?
I'm considering the Dell PowerEdge T330 server tower to run CentOS Linux. The chassis configurations that can be ordered are either 4 3.5" hard drive slots or 8. We need to run a software RAID (that's ...
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Which RAID is easier to do recovery from, a software RAID or a hardware RAID?
I'm shopping for a new server and have been using software RAIDs.
But I wondered about doing recovery on a hardware RAID vs a software one. I know with a software RAID you have to enter a series of ...
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Resize a RAID 1 volume on OS X Snow Leopard - how? (Note: software raid)
I've scoured the Internet in search of an answer to this question, and as usual with OSX-related topics, I often don't find any deep-dive technical explanations sufficient enough to feel confident ...
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2
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How to make a three disk software RAID by adding the third disk?
The server is running CentOS and it has been successfully running a two disk software RAID. I wish to add a third disk to this for redundancy, so when one disk fails, the system still has two disks ...
CommunityBot
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Debian Jessie, raid5 and encryption issues
I installed Debian 8 today. During installation, I made the following settings:
/dev/sda1 -> 1GB /boot
/dev/sda2 -> about 80GB encrypted device
/dev/sda2_crypt -> lvm with VolumeGroup vg0
...
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