Questions tagged [software-raid]
Questions which refer to software RAID implementations.
502
questions
11
votes
2
answers
18k
views
How to convert a software RAID 1 partition to non-RAID partition?
RAID is not a backup, they say, but only now I can see that what I really need is an (external) backup.
So, I would like to convert a (software) RAID-1 partition to a non-RAID partition (ext4) in my ...
0
votes
0
answers
773
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 ...
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 ...
1
vote
2
answers
294
views
Does multi storage pools make sense to avoid more damage from a bad disk?
I am a beginner of NAS(and its hardwares), and I get some basic knowledge about RAID from Synology's guidebook. There are many tutorials taught me how to use my hard drive devices to create the ...
0
votes
1
answer
1k
views
Re-adding disk to md raid fails
I have a problem with a Linux software raid and don't know what are the next steps to overcome this.
It's a Raid 1 of several partitions. After an unclean shutdown the raid started unclean degraded ...
0
votes
1
answer
215
views
Setting up External Storage for Micro Server
Need advice on a relatively cheap and stable way to set up external drives with an Optiplex micro. I upgraded my old homelab server (i5 with ZFS RAID 1 over SATA) to an Optiplex 5060 micro. Optiplex ...
1
vote
1
answer
4k
views
Linux MD software raid stripe cache size
From what I can piece together the /sys/block/md0/md/stripe_cache_size is for raid5 and 6 set at a very low default value to avoid starving machines for memory.
By increasing this value you can get a ...
0
votes
0
answers
213
views
Where can I see Intel® Virtual RAID on CPU logs on Windows Server 2019 and check if there is any error on any Raid 1 disks?
I have the below system and i noticed that it is repairing the raid right now.
I want to be sure that there is no bad sectors on any of the raid disk but I don't know how can I do that
Here all the ...
-1
votes
2
answers
1k
views
Expand or shrink striped array in Windows?
I plan to replace 2 of my HDDs (let's call them A & B, they're not in RAID) with 2 larger HDDs (C & D) in software RAID 0 (Striped volume in Windows). The one problem I have is that my case ...
2
votes
1
answer
7k
views
Create a bootable RAID 1 in Windows 10/11?
I have two NVME 2TB PCIe X 4 and I am using an AMD 5950X.
How do I create a RAID so that it’s bootable for a Windows 10/11 install?
1
vote
0
answers
232
views
How to deal with LVM RAID mismatches – are there benign causes?
I employ LVM with raid1 volumes both at home and at work. One of the disks in my home server has been starting to report S.M.A.R.T. selftest read failures. Looking for ways to investigate the severity ...
4
votes
1
answer
225
views
How much space does a Linux software RAID1 REALLY occupy on its component devices?
A precise answer to this question is important when shrinking the array and its components.
As an example, I have a RAID1 /dev/md0 set up on two partitions, /dev/sda1 and /dev/sdb1.
Both fdisk and /...
2
votes
2
answers
1k
views
Why make a partition at all for mdadm/raid?
i have 4 disks, sd[a,b,f,g] of various sizes that I want to 'merge' together. I am using mdadm to achieve this.
my question is, what's the difference between --
mdadm --create /dev/md0 --level=...
1
vote
2
answers
2k
views
mdadm - Raid 1 arrays do not assemble after reboot
I rebooted my server after creating 3 raid 1 arrays with mdadm, and after rebooting, systemd was spitting out errors about the raid devices timing out when trying to assemble them at boot.
I was given ...
0
votes
3
answers
8k
views
Thinking of a RAID-5 Setup - What is the optimal configuration?
I am planning on setting up a RAID 5 array on my data storage drives using Windows Server 2008 software RAID. I currently have a 500 GB drive for the server OS and two 1 TB drives for data storage. ...