All Questions
23
questions with no upvoted or accepted answers
6
votes
1
answer
504
views
mdadm: Win7-install created a boot partition on one of my RAID6 drives. How to rebuild?
My problem happened when I attempted to install Windows 7 on it's own SSD. The Linux OS I used which has knowledge of the software RAID system is on a SSD that I disconnected prior to the install. ...
- 191
4
votes
0
answers
3k
views
How to prevent an mdadm array check from consuming excessive system resources?
Once a month I've been doing
echo check > /sys/block/md2/md/sync_action
in order to force a software raid consistency check. The problem is this is a 7.2T RAID 5. The consistency check takes ...
- 181
3
votes
0
answers
3k
views
Synology DiskStation: How to stop/interrupt a running reshape (RAID5 -> RAID6)
The short of it: I have a running reshape from RAID5 with 5 disks to RAID6 with 6 disks which needs to be stopped, so I can power off the system. I do not care if the reshape needs to start fresh once ...
- 86
3
votes
0
answers
185
views
Metadata of the assambled raid inconsistent with the metadata of the individual drives?
We have a raid 10 with two failed drives, with one drive from each set still functional.
When booting into rescue system the metadata seems to be fine and consistent with the expected state.
The ...
- 31
2
votes
0
answers
144
views
Mounting External Intel Raid Device on Linux Failing, No Suitable Superblock and Read Past End
I have a hard-disk from a dead machine that I'm trying to mount on my Linux machine. For reference, I'm using Fedora 39 and mdadm v4.2. First, I tried just mounting it, correctly showing it's a RAID ...
- 221
2
votes
1
answer
3k
views
mdadm shows inactive raid0 array instead of degraded raid6 after disk failure
I've been running an Ubuntu 18.04 system with an 8-disk raid 6 array, that crashed while having a faulty disk (I only noticed that there was a faulty disk after the crash). The raid array has survived ...
- 21
2
votes
0
answers
949
views
RAID5 fails while recovering (mdadm): Any chance to resync?
My RAID5 is going to die because, while restoring a failed HDD, on another HDD read errors occurred and a restore is impossible. I just want to know whether it's possible to restore only a part of ...
- 21
2
votes
2
answers
1k
views
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, ...
- 121
1
vote
1
answer
623
views
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 ...
- 1,163
1
vote
0
answers
542
views
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 ...
- 21
1
vote
0
answers
77
views
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 ...
- 372
1
vote
0
answers
120
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 ...
- 218
1
vote
1
answer
812
views
how to boot without assemblying raid arrays (or assembling them correctly)
I had one debian 6 system with two harddisks on raid1 set up via mdadm. built on simple partitions (/dev/sdb3, /dev/sdc3). at least on the old system, everything is tied up via UUIDs.
then i inserted ...
- 5,021
0
votes
0
answers
173
views
Raid 10 gone - how to rebuild / find informations
Because of another task, i had to disconnect all the raid hdd's from my pc.
Shutdown -> disconnect hdd's -> boot -> shutdown -> connect hdd's -> boot -> raid completely lost.
mdadm --...
- 101
0
votes
1
answer
223
views
How to reshape a 2-disk RAID1 into a 2-disk RAID5 using mdadm?
According to How to remove a drive from a non-standard 2-drive RAID 5 array?, "with mdadm, a 2 drive RAID 5 is binary identical to a RAID1". If that is so, what's the mdadm command line for ...
- 105