All Questions
122
questions
2
votes
0
answers
100
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
0
votes
0
answers
16
views
USB disk on a VBox on RAID was repartitioned
I have an Ubuntu on a VBox on Windows 10 Pro. The Ubuntu had a Raid 1+0 with 2 external USB disks. Suddenly, when I restarted the server, both disks got repartitioned with these: PARTLABEL="...
- 334
2
votes
1
answer
178
views
How to recover a RAID 5 after deleting the partition table and fstab?
I have a RAID5 set up for my storage drives on my Nixos 23.11 machine. I followed this guide to set up the RAID (and I followed it very closely).
I have just reinstalled Linux on my boot drive (...
- 41
0
votes
0
answers
15
views
Using mdadm to perform no-downtime backupd
I have a server running Ubuntu 23.10. It contains several RAID 1 arrays created using mdadm. One of these holds the virtual machine disk images of my web-servers. Currently, to backup these images, I ...
- 1
0
votes
0
answers
53
views
Unable to access data on Intel "fake RAID" after failed Ubuntu update
Recently I did an update of my Ubuntu, it seems to work at first but after restart it shows:
kernell ofset relocation range kernel panic not syncing: VFS
I try to use different older kernel from Grub ...
- 101
0
votes
1
answer
245
views
mdadm grow fails with "mdadm: Cannot add bitmap while array is resyncing or reshaping etc."
We have a RAID-1 setup. We changed the old 1TB disks for 3.7TB disks. The disk changes worked without a problem, the disks are in sync. We did have to change the partition type from MBR to GPT, but ...
- 17
0
votes
1
answer
174
views
Mdadm raid 5 array is half the size than expected
I crated a Raid 5 array with mdadm consisting of 4 x 4TB drives, i was expecting the array to be 11-12Tb in total space.
But after building the array I noticed it is actuall half the size of the ...
- 3
2
votes
0
answers
439
views
Mayhem with partitions and GPT: mdadm RAID overwritten by Windows partition - possible to fix partition table?
dear Community,
I’m writing as I may have wrecked my system up.
I launched disk manager in Windows; as one of my disks was not recognized, and as Windows kindly suggested me to initialize the-said ...
- 21
0
votes
1
answer
169
views
Recovering RAID 6: drives are ok, but partitions are "lost"
I faced strange issue with my RAID 6 array (8 HDDs, mdadm). Accidentially 3 drives were disappeared from it, with corresponding result - array has been ruined, but - all 8 drives are perfectly fine, ...
- 101
2
votes
0
answers
260
views
Raid6 mdadm reshape operation interrupted - now cannot mount or examine
Edit: Once the reshape finished the drive became fully accessible again.
I had a power failure while a raid6 array was being reshaped, and now certain operations cannot be run against it, including ...
- 279
1
vote
1
answer
289
views
Clean up left-over around a RAID5 coming from a QNAP NAS
I just moved a 12TB RAID5 (4 disks of 4TB) from my QNAP NAS into my Linux Server (/dev/md0), and I noticed that there are three "left-over" partitions on each disk (/dev/sd*1, /dev/sd*2, /...
- 31
5
votes
1
answer
527
views
Mount Btrfs raid 5 from failed ReadyNas 104 on Linux - aka how I restore data from my ReadyNas
After about 7 years my ReadyNas finally failed, I would expect from Neatgear detailed recovery instruction, but I read dozens of threads - my problem is not uncommon, but solution was not found.
After ...
-1
votes
2
answers
471
views
Unwanted, surprise device mapping causing problems with linux raid
Original title: Unwanted, surprise LVM disk mapping causing problems with linux raid
I've done linux raid on ubuntu for almost a decade but never messed with LVM although I'm vaguely aware it exists.
...
- 131
1
vote
0
answers
216
views
Is it possible to create a RAID from only partial disk?
We have a dual boot system where we install firmare on two partitions, additionally we have a data partition. We have two disks on the system and I wonder if we can create a raid for the data ...
- 121
0
votes
1
answer
183
views
raid 4 3 disks + 2 parity disks
I have a raid 0 with 3 disks and I want to be able to lose some disks without losing data.
I'm using mdadm and I already started to grow my config
Current config:
Personalities : [raid0] [linear] [...
- 13