All Questions
178
questions
1
vote
1
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80
views
Can I access data from single HDD of RAID-1 (Software based RAID)?
I had a machine running Linux Server (Ubuntu 22.04.4 LTS) on a M.2 NVMe SSD, and have connected 2 four TB NAS HDD with software based RAID-1 configuration (Linux RAID1 and formatted as EXT4 partition)....
- 13
0
votes
1
answer
117
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
114
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
420
views
Doing a disk copy with dd on RAID1 devices on Ubuntu
I want to make exact copies of two drives using dd. The two drives are mounted on Ubuntu as a single RAID1 device. The RAID (consisting of two drives) is bootable. If I make exact copies of the two ...
- 369
0
votes
1
answer
179
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Expand storage on PERC H710 RAID 0 Dell Poweredge R620
I can't find any good tutorials online. It's my first server and I don't know much.
I have a RAID 0 and I want to expand storage without losing my data? Is it the same process for a RAID 5?
I've read ...
- 11
0
votes
1
answer
2k
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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
40
views
RAID server went dark
So I have a Gigabyte 277x MB with a Intel i5 that has been running 2 software raid arrays on Ubuntu for 3 years without issue. Last night I turned off server to move it and clean it and then turned it ...
0
votes
1
answer
117
views
Partition is not accessible in WinXP after being used in RAID 1 under Ubuntu
I have created a RAID 1 array under Ubuntu using mdadm. I used the manual at this link: https://www.digitalocean.com/community/tutorials/how-to-create-raid-arrays-with-mdadm-on-ubuntu-16-04
I created ...
- 109
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
766
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
0
answers
128
views
mdadm lost RAID5 after new motherboard and processor
I moved my mdadm RAID5 to a different motherboard/processor, same boot drive.
The array is no longer found during a mdadm --assemble --scan
The motherboard was previously running INTEL RAID, so when ...
- 56
0
votes
1
answer
435
views
Why MDADM removes disk with no errors from array and marks it as failed
I have a Raid6 that keeps automatically marking a disk (/dev/sdi) as Failed and removing it from the array even though the long test does not show any errors:
Test results
sudo smartctl -l selftest /...
- 121
0
votes
1
answer
378
views
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] [...
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