Questions tagged [raid]
RAID - Redundant Array of Independent Disks. A Storage technology to provide redundancy and performance, to reduce I/O bottlenecks involved in using multiple disks for large storage.
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Is this possible to create raid1 from 8TB and 4TB+4TB disks, eg. stripe 4+4 + mirror 8?
I have one 8TB and two 4TB disks. I am curious if I am able to create 8TB raid from 8+4+4 disks?
I tried this sudo mkfs.btrfs -f -m raid1 -d raid1 /dev/sdc1 /dev/sdd1 /dev/cdb1 but this creates only ...
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Recovering a RAID6
We experienced a power outage last Thursday morning. Luckily the OMV server is on battery backup, so I was able to shut the server down. Once power was restored, I restarted the server and the RAID ...
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Recovering encrypted LVM on top fo RAIDs but LUKS header offset by 2MB
I am trying to recover my data from a 8 year old configuration. 8 years is the last time I tried to mount this configuration but the computer died. The configuration is thus:
LUKS encryption on top ...
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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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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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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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User space program for assembling Linux MD RAID disk images into a coalesced disk image, without using kernel implementation
I've been handed a set of disk images which apparently are Linux MD RAID, asking if I could "reassemble" them. Using a Linux kernel it's as easy as attaching them into partition scanned ...
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Will my system be any faster or slower with this LVM mirroring scheme?
I usually boot my system from a single 250G M.2 NVMe SSD (PCIe 3.0 x4). I also have a 240G SATA SSD and a 640G SATA 7200rpm HDD that I currently use for ad hoc backup. The latter will be replaced with ...
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mdadm RAID1: Unable to replace(--add) failed drive
I have a RAID1 array of two hard disks which recently lost one drive, but I can't seem to simply replace the broken one.
mdadm --detail has reported that the first drive slot sda has been removed (...
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Failed to umount directory from my RAID1 device (device busy)
I have a system that has 1x SSD and 2x 4TB HDD working under software RAID1. (I'm currently upgrading from Linux Mint 20 to 22, another topic regarding that issue)
On my RAID1 I have LUKS encrypted ...
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How to Remove encrypted(LUKS) soft RAID forcely in Linux?
I built a soft RAID0 with two SSDs(Samsung-980Pro), and encrypted it with LUKS, since I had only one PC a few years ago.
Now I bought a server, and directly disassemble one SSD from the old PC(without ...
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Rebuilding RAID1 with Luks after system reinstall
My current Linux Mint 20.3 is soon running out of support, so I figured it's time to install a fresh Linux Mint 22. Currently I have mdadm running two 4TB drives on RAID1 with LUKS. It's been very ...
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RAID10: Help, how did I configure this thing? Data is there, but my knowledge is not
First off, I'm certainly a moron. I created a RAID 10 array a number of months ago and I hadn't rebooted my computer to ensure that it would startup properly. At this point, I don't even remember what ...
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