Questions tagged [software-raid]

Questions which refer to software RAID implementations.

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I want to collect system information using bat file

I hope you all are doing well. Help me please. I want to collect system information using bat file like: List of Software OS information System Hardware details. I had some code which collects the ...
Utthunga's user avatar
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Way to monitor progress of RAID10 rebuilding disks, when RAID does not show in /proc/mdstat?

I have an inactive RAID 10, and the output of mdadm --assemble --scan -v |& tail -17 is: mdadm: /dev/sdn1 is identified as a member of /dev/md/10, slot 5. mdadm: /dev/sdk1 is identified as a ...
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¿Does a RAID array persist through multiple OS installations?

As title said; i'd like to know if a Windows-made software RAID array will persist a new installation, if I could read that RAID with another Windows partition or installation and if other OS could ...
jfalava's user avatar
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Replace a Raid 0 Disk (Software Raid/Windows)

I would like to know if it is possible, to replace a Disk in a Windows Software Raid 0. (e.g. clone the disk to another one inside the OS) I have seen another post where this question was asked, but ...
someone's user avatar
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Is Intel ESRT2 Software-RAID?

I have 2 options for configuring RAID at the UEFI level. Intel ESRT 2 and Intel VROC which is the successor to Intel RST (rapid start). I know Intel RST and thus VROC (which is present on non server ...
user2284570's user avatar
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Recreate hardware RAID 1 out of fully-mirrored disks without data loss in software RAID 1

I have two identical hard disk drives with identical data. They were a former hardware RAID 1 on a MSI H97M-E35 mainboard with an Intel H81 Express chipset and were used as data drives (not as system ...
NetDevil's user avatar
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Machine crashes with AHCI controller unavailable! and not using Asmedia Controller

I have an Machine that crashes periodically. When I recreated the issue I found that the machine fails with the error AHCI controller unavailable! (full errors in the screenshot). I have an AMD Ryzen ...
Shaulliv's user avatar
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3 answers
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RAID 5 with SSDs; how many and what class of SSDs to use?

I have a 850 EVO 250gb as win/programs/games disk and I am thinking buying more SSDs to go with RAID 5 in order to gain more speed. I know the pros and cons of RAID 5. The question is: 5 cheap 120gb ...
selfmade.exe's user avatar
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697 views

Windows 10 - RAID5 - Intel RAID or Storage Spaces?

Which method should I use to RAID5 my 3 drives? At the moment I started out with Intel's RAID but it seems super slow. Steam can barely download with 10M/s speeds and the array sometimes have ...
Apache's user avatar
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mdadm RAID 6 drive failed over, then some of my data disappeared

Background For 7 years now I've had a personal file/media server running Fedora (initially 21, currently 30). The main storage array comprises 3TB drives in an mdadm RAID6 (originally, RAID5). Over ...
DYS's user avatar
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mdadm can't reasamble raid 05

English is not my first language, so sorry in advance for any grammar errors. A partner configured a raid 5 of raids 0 with mdadm (I did not wanted to put the data on any thing that was not one of ...
jkl's user avatar
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mdadm raid cretion: apparently superblock not written to disk

I am in exactly the same predicament as MDADM raid “lost” after reboot: I followed this giude to setup a raid-1 array with two disks (I was working in a recovery shell, so no "sudo"): mdadm --create ...
ZioByte's user avatar
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LUKS2 - RAID0 - NVME : alignment issue

I have trouble while in top of this stack bellow: mkfs.ext4 /dev/mapper/raid0luks2 /dev/mapper/raid0luks2 alignement is offset by 147456 bytes This may result in very poor performance (re-) ...
akira2x3x's user avatar
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Share RAID between Linux and Windows 10

I have a PC with two SSD, one for Windows 10 and one for Linux. I also have two more 1TB disks that I want to use as a software RAID 1 volume shared between Windows and Linux OS. Which way could be ...
Progitto's user avatar
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RAID 1 disk goes 100% activity all the time with 0 read/write with 0ms response

I have setup software RAID 1 in windows 10 v1709. Main disk is SATA3 ssd but I have also two 3TB Seagate disks in software RAID 1 (mirrored). I have this setup for a few mounths and I had no problems ...
Darg's user avatar
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Did I just lose my Storage Spaces (RAID 0) array? How can I recover it?

I am an amateur photographer and recently decided it was time to stop using external hard drives and move to a custom built storage server. This build was mostly for fun and learning. I started by ...
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Server 2016 Storage Spaces and NumberOfColumns

I think we all know about the NumberOfColumns issues: https://blogs.technet.microsoft.com/tip_of_the_day/2015/03/17/tip-of-the-day-numberofcolumns/ That said, let's pretend to plan the following (at ...
Fabian S.'s user avatar
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Why can't a RAID controller mimic a drive controllers actions on a URE?

There is a fact: a URE renders an entire member of a RAID array as bad, but a URE DOES NOT render an entire drive as bad outside of an array. What is the technical difference that causes this? They ...
Damon's user avatar
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Re-use raid 5 in debian that was created in an external raid cabinet

I had 5 disks in a Deltaco raid cabinet configured to run the disk in RAID5. Now the cabinet doesn't work anymore, and I'm trying to get the data from the disks. I hoped that I could just pop the ...
brange's user avatar
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One RAID1 missing after reboot

I'm using Open Media Vault 3 that is based on Debian 8. I already have a RAID1 of 2x4TB WD Caviar Red, and now I'm tring to build a RAID1 with two Seagate Ironwolf 6TB. Whe I build it anything is ...
Ansem's user avatar
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ESXI Hardware RAID Solution

I'm re-purposing a machine to run ESXI and made a rookie error in that I did not properly understand the hardware requirements. The machine will run a range of linux distros which will then runner ...
Remotec's user avatar
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How to identify bad disk by WWN Windows Server 2008

I have two identical hard drives in Windows Server 2008 configured in diskmgmt.msc as a software mirror, or whatever MS's parlance is. One of the disks is bad. Good ol' Linux can show a drive's WWN in ...
user38537's user avatar
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Migrate a Debian 7 server with mdadm to Hyper-V

I have a physical server running Debian 7 with mdadm configred to have 2 300GB disks in RAID-1. I need to import that server into a VM to be run with Hyper-V. If it hadn't RAID I think it would be ...
morenz's user avatar
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RAID1 mdadm: not large enough to join array

I have been using my HDD as part of software RAID 1 array with the second device missing. I configured it this way to be able to add another disk when I have a chance. Now I've bought the second disk ...
subcoder's user avatar
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925 views

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 ...
SimonA's user avatar
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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 ...
Edward_178118's user avatar
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66 views

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 ...
Nidhoegger's user avatar
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Windows 8.1 Storage Spaces Pool deletion

I am trying to delete my RAID 0 storage pool and it seems that maybe the storage spaces utility doesn't recognize the pool being there. According to these screenshots (and others I have found that are ...
Mxracer888's user avatar
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On ubuntu add a HD to RAID5 but the size do not Extension

In this time I have a RAID5 using three HDs(2TB*3) and I was tinking to Add a new HD and Extension the size to 6TB, The existing HDs is [adb][adc][add]=[md0] Then add HD is [sde] Wat I did is,,, # ...
ghin's user avatar
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1 vote
1 answer
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Writing/reading data while rebuilding RAID array

I understand its best to limit disk activity as much as possible during a RAID rebuild/resync to reduce the risk of data loss and to prevent slowing down the rebuild process by adding more activity. ...
user28772811's user avatar
1 vote
0 answers
796 views

Alignment with RAID-6 (mdadm) + LUKS + XFS

What I want: I have a 4x4TB RAID-6 array with mdadm. I want the storage to be encrypted and plan on using LUKS. I will most probably use XFS as filesystem. I will add more disks to the array as ...
Antagonym's user avatar
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0 answers
163 views

Raid0 recovery - failed mobo

Short story: motherboard died, need to recover data from 2 working HDD's in RAID0 Long story: My mobo died on a Dell Studio XPS 7100, I basically upgraded all the components and my pc is now up and ...
Anton's user avatar
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1 vote
2 answers
2k views

Cloning a Linux software RAID and LVM setup to another computer

I need to create a number of (almost) identical Linux machines (Debian Wheezy) with software RAID and LVM. I'm thinking of creating a base installation and cloning that one to all machines. I tried ...
zacura's user avatar
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1 vote
0 answers
165 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, ...
Pigeon's user avatar
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1 vote
1 answer
275 views

MDADM RAID5 recovery, refused to add replacement disk

I dealing with a faulty raid5 setup (3x2TB disks): Number Start End Size File system Name Flags 1 1049kB 1026MB 1024MB ext3 primary 2 1026MB 6146MB ...
monaco44's user avatar
1 vote
1 answer
4k views

mdadm --examine displays something different than --detail

Who should I trust to fill my /etc/mdadm/mdadm.conf ? mdadm --examine --scan returns /dev/md/0 while obviously it's /dev/md0 that is currently rebuilding What should I put in my /etc/mdadm/mdadm.conf ...
euri10's user avatar
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Growing an encrypted RAID5 array without causing alignment issues

Question Is there anyway to tell mdadm to make sure a certain logical sector on the RAID-device stays aligned to the beginning of a stripe when growing a RAID5 array? Problem My RAID5 is encrypted ...
Niklas Holm's user avatar
1 vote
1 answer
648 views

Recover LVM with software raid

I have a Synology NAS using SHR mode, which is basically LVM and Raid 5. Somehow my LVM volume became corrupted and won't mount anymore. This volume houses over 20TB of data, and most of it is NOT ...
user avatar
1 vote
0 answers
561 views

windows server 2012 span multiple raid 5 arrays

I have some old hard disks that I want to get as much out of them as possible for space. Currently, I have: 2 x 200 GB HDD 2 x 500 GB HDD 2 x 1.0 TB HDD 1 x 1.5 TB HDD If I combine them as ...
pjensen68321's user avatar
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0 answers
1k views

Raid 5 Degraded

I have a dell PowerEdge T110 with a raid 5 array that says it is degraded. This uses a perc s100 controller. I am using 4 74gb raptor drives for the array. The computer tries to boot but it hangs on ...
user1345363's user avatar
1 vote
0 answers
81 views

Windows Software RAID recovery after non-RAID drive failure

This is a hypothetical question but first some context. I'm looking at setting up a simple RAID 1 (mirrored) for storing data. I was looking at using Windows Disk Management tools on a Windows 7 ...
SLaG's user avatar
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1 vote
0 answers
453 views

MDADM RAID 5 disk missing after reboot

I have a server with 6 disks (4x2TB + 2x4TB). I put the 2TB disks in 2 RAID 0 and the resulting 2 4TB RAIDs with the 2 4TB disks in a RAID 5 array. The RAID works fine until I reboot the server. After ...
Sam's user avatar
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1 vote
1 answer
90 views

Move two X-RAIDed disks to ubuntu

I have an old NAS (Netgear ReadyNAS Duo) that are X-RAID (Expandable RAID) that I need to move on to a new Ubuntu 12.04 Server. Assuming that this is software raided, does anyone know where I can ...
x20mar's user avatar
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Is there a safe way to move a partition beneath a linux software RAID5 using mdadm?

Suppose, for example, that you have a RAID5 across multiple disks and you would like to retire the oldest of the disks and replace it with something from this decade. I know I can fail the partition ...
Mutant Bob's user avatar
1 vote
0 answers
1k 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 ...
Scott's user avatar
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1 vote
1 answer
451 views

Trying to Narrow Down a Disk Error

I've been experiencing some weird errors from some hard drives, and I'm having trouble narrowing down the problem. It's part of a RAID array (Linux software RAID, budget hardware), so when it dropped ...
David's user avatar
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1 vote
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2k views

md0 RAID1 can't read superblock

i have a problem with my md0 array, which is an raid1 (2 mirrored USB-Sticks) Mount gives "Can't read superblock" cat /proc/mdstat: Personalities : unused devices: <none> fdisk -l ...
Tom's user avatar
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1 vote
0 answers
119 views

erased md0, md1 and can't recreate them

I previously had a working RAID 1 array. I think as a result of running grub-install /dev/sdb and grub-install /dev/sdc I somehow wiped my computer of md0 and md1. I need to set them up again. When ...
jaynp's user avatar
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1 vote
1 answer
1k views

Windows Software RAID: How can I view the Windows RAID parameters (disk signatures, etc.)?

The software RAID array in my Windows 7 x64 box failed. Drive tests report the drive itself as healthy. Two drives, RAID1 partition and one RAID0 partition. In Disk Manager, the failed drive shows up ...
Eccentropy's user avatar
1 vote
0 answers
539 views

Is `dmsetup remove` safe with respect to contained data?

I have a "lost" SW RAID array as described in this question: https://askubuntu.com/questions/311024/raid1-array-lost-after-upgrade-from-ubuntu-11-10-to-13-04. I have now identified a way to mount one ...
Thomas Arildsen's user avatar

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