All Questions
198
questions
1
vote
3
answers
1k
views
Disable warning from mdadm for “degraded” RAID1 with missing drive
I recently had a server outage due to a failed drive. Because of that I set up the server with a new SSD in RAID1 this time but until I managed to get another SSD drive the mdadm-based RAID1 runs with ...
- 845
1
vote
1
answer
613
views
Can I read from a 2-disk RAID 1 array from a 2-bay external USB disk dock?
I have 2 disks which were the only disks in a Linux RAID 1 array. The RAID information is still readable via mdadm when mounted externally via USB using my 2-bay disk dock. Is there a way I can read ...
- 53
2
votes
0
answers
50
views
Sata 2 vs Cacheless SAS6G JBOD Performance
I have some "old" servers here, using Asus P9D-MH/SAS/10G-DUAL
https://www.asus.com/Commercial-Servers-Workstations/P9DMHSAS10GDUAL/
This board comes with a SAS 6Gbps controller, an LSI SAS2308 ...
- 37
1
vote
2
answers
2k
views
How to migrate mdadm RAID10 with 4 disks to RAID5?
I have a software RAID10 based on Linux’ mdadm under Debian Buster. Originally I found RAID10 had best performance. But I need more space and accept to trade some write performance for +50% space.
# ...
- 845
0
votes
1
answer
385
views
Long-term local offline RAID storage of never-changing data
I have about 20TB of data that will remain unchanged (forever) and I am planning to make offline copies with a little redundancy.
I already have a lot of 2TB drives that I plan on using and I am ...
1
vote
0
answers
566
views
Error when trying to reduce number of drives in a Linux RAID array
I’ve got a Synology NAS that I’m trying to reduce a RAID6 array from 12 drives down to 11 drives.
I’ve already reduced the size of the file system and logical volume, but when I try to reduce the ...
- 11
0
votes
0
answers
983
views
Creating Raid Disk from Existing Disk
I was going to follow the guide here on arch wiki to convert a single disk to a raid disk using mdadm. The disk in question is a proxmox system disk.
My plan was as follows:
Create the raid disk ...
- 812
0
votes
0
answers
721
views
Dual boot Manjaro and Windows without switching to AHCI
I've recently bought a new Lenovo IdeaPad C340 with an M.2 SSD and Windows 10 preinstalled. Now I want to dual-boot it with Manjaro (Awesome WM edition, shouldn't matter through).
The problem: ...
- 111
1
vote
0
answers
473
views
Can I force-mount a raid filesystem beyond repair?
I had a 3-disk RAID5 setup. While migrating carelessly, a disk popped out of the array and then another followed closely.
I therefore cannot legitimately rebuild the array because there is no aligned ...
- 261
0
votes
0
answers
4k
views
wrong fs type, bad option, bad superblock on /dev/mdXY
If I use a expensive commercial software I can read the data but I did not buy it because it is too expensive for me.
Since I have the conviction that I do not reformat the hard drive again and I can ...
- 281
1
vote
3
answers
1k
views
Rebuild a RAID5 on ZYXEL NAS 540
I have a weird problem with my NAS, a Zyxel 540 with 4 × 2TB drives in RAID 5 configuration.
Everything was working smoothly until I decided to replace one drive with a new WD Red, same size.
As ...
- 33
1
vote
0
answers
23
views
Remounting imperfect RAID 6 after clean install
I am running a small laboratory server (intermediate logins and data storage). It has 5 physical drives: one (sda) for /, and 4-drive RAID 6 (sd[b-e]) for /home. Due to a hardware fault, I had to ...
0
votes
1
answer
422
views
Disappearing RAID array aka nested partition table within a partition?
I am having trouble with unsustainable RAID array, it keeps on disappearing in random fashion. At creation time the warnings related to lost / meaningless partition table are displayed, even though a ...
- 152
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
1
vote
2
answers
2k
views
Recovering LVM Raid-5 Array
I have a failed raid-5 array that I can't seem to recover. Basically the story is I had this data in raid 5 and I was using LVM which has built-in raid now. I noticed one of the disks going bad so I ...
- 86