All Questions
73
questions
0
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1
answer
119
views
Seagate Ironwolf 4TB drives reverting APM settings on Ubuntu 22LTS after upgrade from 20LTS in RAID-5 array
I recently upgraded my system from Ubuntu 20LTS to Ubuntu 22LTS, and I've encountered an issue with my RAID-5 array consisting of four Seagate Ironwolf 4TB hard drives (from /dev/sda to /dev/sdd). ...
0
votes
3
answers
116
views
Reassemble RAID0 array despite error
My ancient Synology CS407 was setup (deliberately) with RAID0 and I didn't have a backup system set up yet. There are four 1TB drives making a 4TB volume. One drive had a failure which led to the on-...
- 101
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
1
answer
2k
views
How to extend Disk Space with LVM on Linux Server: Limited Hardware, High Capacity Needed
Regarding LVM Partition
I am using a Linux server machine (IBM) for a genome assembly task. The OS is Ubuntu, version 22.04.2 LTS (Jammy Jellyfish)
The machine has a memory capacity of 248 GB. There ...
0
votes
0
answers
141
views
md127 : inactive sdb
I tried to fresh install a ubuntu on an server but it failed stating inactive sdb. Shared below is the stat. I am not familiar with RAID and wondering if someone could guide me on how to fix it ?
...
- 11
0
votes
0
answers
767
views
Ubuntu Server mdam device disappeared after reboot
I have a server (Ubuntu 22.04 LTS) running a software RAID 1 with mdadm, consisting of 2 WD Red disks. After booting the server, a Windows client couldn’t find the Samba share. I logged into the ...
0
votes
1
answer
378
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Disabling RAID1 on a 2x1TB NVME Ubuntu Linux setup
I'm sorry if this is worded weirdly as I'm quite new to dealing with RAID, apologies for that (any edits would be appreciated if this is worded wrong).
That out of the way, on my remote dedicated ...
0
votes
1
answer
3k
views
Determine why drive was removed from software RAID array and rebuild safely
I have a fairly large Linux software raid6 array, with 16 devices. Recently I noticed that a drive appears to have failed out of the array:
$ cat /proc/mdstat
Personalities : [raid6] [raid5] [raid4] [...
- 21
0
votes
1
answer
652
views
Unable to replace faulty harddrive to rebuild the Raid 1 Array (intel RST Raid 1)
we have HP server HP ProLiant ML10 Gen 9 with Ubuntu 20.04.4 LTS. We have enabled Raid 1 array for two HDD sized 2TB using Intel RST Raid configuration (which is an fake/firmware raid). Now my goal is ...
- 21
0
votes
1
answer
79
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Raid issue after change to raid 6 from 5 and reboot
I'm hoping somebody with some mdadm experience can help me out.
I did the following and it causes the raid to not mountable after reboot. Is there any chance that it can be saved?
I've used the ...
- 1
0
votes
0
answers
49
views
Migrate existing RAID5 to RAID10 with new disks
I have the following situation:
Within my Server, i have a RAID5 and RAID1 made out of 3 x 3TB HDDs. Now i want to migrate the whole stuff to a RAID10 made out of 4 x 1TB SSDs.
Actually i have SW ...
- 227
1
vote
1
answer
6k
views
Hardware RAID not showing in Ubuntu Server 20.04
I've recently repurposed an older machine I had as a NAS. I just added 4 HDDs to it intending to set them up as RAID 1+0. This is an HP Proliant Microserver Gen8. I set the drives up in the raid ...
- 189
1
vote
0
answers
371
views
unRAID equivalent in Linux
On my Ubuntu home server, I have 2 RAID5 arrays (mdadm), one is 3x4TB, the other 4x4TB. I need to increase size and I am now contemplating migrating to unRAID for its ability to grow arrays more ...
- 145
3
votes
1
answer
856
views
Recovering a newly created RAID1 that has no superblock (lost after reboot)
I setup two new 8TB hard discs in RAID1 format recently following this guide. The machine uses Ubuntu 21.04. I used the following commands:
sudo mdadm --create --verbose /dev/md0 --level=1 --raid-...
- 161
1
vote
0
answers
234
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Does using USB drives with identical World Wide Name (WWN) risk data loss?
I bought two m.2 SSD enclosures with identical World Wide Name (WWN). (I didn't know such was possible.)
Will this cause data corruption if I use them on the same Linux (Ubuntu 20.04.02) server? If I ...
