Questions tagged [mdadm]
A linux utility used to manage software RAID devices.
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How to convert system partition raid 1 to 0 for the config
I have ordered few ubuntu servers from one provider and need to change raid 1 to raid 0 on system partition
Usualy new server has a disc structure
And I do a change by following commands from running ...
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mdadm --monitor --program option not working
I am trying to make mdadm call into a simple bash script which writes a message in the kernel log in case of a state change.
I am running on a VM (qemu). The VM is running debian 12.5, and kernel ...
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Replace Disk Raid 1 And Reconfigure to use full size - mdadm almalinux
I am facing an issue with my RAID 1 (mdadm softraid) on an AlmaLinux/CloudLinux OS server, which is a production server with live data. Here's the chronology of events:
Initially, I created a RAID 1 ...
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Troubleshooting RAID1 unbootable disks after CMOS reset
I've been running a RAID1 setup using two Samsung 970 EVO 500GB NVMEs on an Asus Z390 Maximus XI Formula motherboard for the last two years. This is my home server running Ubuntu 22.04 and I chose ...
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mdadm.conf multiple duplicate UUID Ubuntu 24.04
This is more informational than a question though someone may have a better answer than the solution I came up with. This was a fresh install of Ubuntu server, literally nothing done other than ...
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Remove a disk from a Raid1 array and use it as cold backup?
My RAID1 array is currently running with 3 disks (2x6TB and 1x3TB). I want to remove the smaller disk and wonder if it makes sense to put it in the safe as cold backup. The idea is to be able to mount ...
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No space left on device but only 50% space and 1% inodes used
This is on a Iomega IX200 NAS which had been expanded to 4TB disks from the original 2TB.
It all looks good.
But when I try to save data to a new file I get the "No space left on device error&...
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procedure for mdadm in-place RAID5 to RAID6 upgrade
I have a debian host configured as a NAS using 6 disks in a RAID 5 setup. The current configuration is as follows:
# mdadm -D /dev/md0
/dev/md0:
Version : 1.2
Creation Time : Fri Mar ...
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Mdadm array is inactive, how to fix?
I have a RAID5 array configured with MDADM in Ubuntu 24.04 LTS. The array consists of five 8TB drives, and there have been no changes to it recently.
Today I noticed that the array is not accessible.
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mdadm raid 10 added to fstab shows as removable drive in dolphin. How to fix?
I'm still relatively inexperienced in Linux and this is my first post here. I configured mdadm raid 10 far acording to archlinux RAID wiki page but with custom chunk size 64K. It contains 2 older ...
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Reassemble Raid5 Array after disabling TPM
Edit: Both /dev/sdd and /dev/sde are missing super blocks. I assume this cannot be fixed. I am whipping the drives and starting over.
I just finished coping 8TB worth of data to a new raid5 array. I ...
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Can mdadm recreate the raid array - From just the Disks from a mdadm Raid Array?
I suspect that the answer is no.
I also had the UUID of /dev/md0 so I tried to update the mdadm.conf file by adding the line:
ARRAY /dev/md/0 metadata=1.2 UUID=b431e078-5d6d-43db-9631-fd1c827406d5
I ...
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Is software raid5 created by mdadm in debian compatable with openbsd softraid
I have created software raid5 using mdadm in Debian Linux. Now I want to switch to OpenBSD and interested if I will be able to mount my raid5 under new system?
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btrfs data integrity checksum under mdadm raid
I found several places suggesting to use btrfs under mdraid (mdadm) or LVM Raid. But nobody expands on how that works when you have data checksum issues!
My main concern of not using btrfs native raid,...
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Is it possible to change from a LVM + Raid 1 setup to LVM on a live system?
This might be a silly question. But here goes -
Some time ago I setup a Ubuntu Server system which contained two identical drives. Both drives were setup during the installation process using LVM + ...
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