Questions tagged [raid0]
The raid0 tag has no summary.
31 questions
1
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2
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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 ...
- 447
0
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0
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82
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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 ...
- 203
1
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2
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150
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Converting sw md device from raid0 to raid1 with only one disk online
Is it possible to convert an existing raid0 md device with only one disk to a raid1 md device with one disk in order to add a second mirror disk later?
It should be possible online.
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4
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1
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Raid 0+1 Failure Cases VS. Raid 1+0
I have heard that RAID 1+0 is more fault-reliant than RAID 0+1, because a secondary drive failure is more likely to cause data loss in RAID 0+1 than RAID 1+0.
In the above image, if "Disk 1"...
- 359
2
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0
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63
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Can't mount extended logical partitions in RAID 0 Fake Array created by dmaid and device mapper
First of all, I would like to let you know I come here cause I'm looking for a solution or a way to be able to mount the HOME partition and to read the inside data.
I've been running Funtoo GNU/Linux ...
- 121
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0
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168
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Linux cannot recognise my RAID0 array drives
OS:
64bit Debian 11 Bullseye with KDE Plasma Desktop environment
PC Specs:
AMD FX-4300 Quad Core Processor,
nVidia Geforce GTX 970 Graphics card,
ASUS M5A97 LE R2.0 Motherboard,
16GB unknown brand ...
1
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0
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27
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mdadm: after a re-install, two raid1 partitions were relabeled raid0 but the data are raid1
Maybe the simplest thing is to just mount one partition by itself read only and pull the little bit of data not fully backed up and rebuild from scratch.
Otherwise, since there has been no I/O ...
- 131
17
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3
answers
4k
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How does RAID0 work underneath, when the devices have different sizes?
To my surprise the CentOS 7 installer allowed me to create a RAID0 device consisting of roughly a 17 GB disk and a 26 GB disk. I would've expected that even if it allows that, that the logical size ...
- 759
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250
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Need help figuring out why this LUKS setup isn't working
Problem: I'm trying to set up an encrypted raid0 device with btrfs. I'm able to get beyond the first password prompt to enter the LUKS device but after that I get an error from fsck saying something ...
- 329
2
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2
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322
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Is it possible to keep data in procedure Raid1 growing to Raid5?
I have Raid 1
/dev/sda /dev/sdb
as md0
then now I want to expand for Raid5
So, my idea is
sudo mdadm --add /dev/md0 /dev/sdd
sudo mdadm --grow /dev/md0 --level=raid5 --raid-devices=3
In these ...
- 245
1
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1
answer
1k
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btrfs RAID0 - should I stripe or duplicate metadata?
I want to use btrfs with raid0 on three nvme drives. These should contain the operating system and most application files, whereas valuable user files will be on a network drive or seperate disk.
...
- 191
4
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2
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7k
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linux stress, impose work on specific disks
Have a server running centos 7.6, and it has 4 ssd's as Raid-0 mounted as /scratch/
I have the linux program stress-1.0.4-16 and I just learned stress-ng existed.
Is there a way with stress to tell ...
- 9,092
1
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1
answer
889
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MDADM creates additional block devices
I noticed a strange issue when creating RAID array with mdadm. As far as I see, it creates additional devices of md type. According to the kernel.org documentation, the md device type is Metadisk (...
- 283
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0
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243
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How to convert RedHat 7 Raid 0 system from UUID to device (sda/sdb)
I'm trying to create an image of an RHEL 7.6 Raid0 device.
I've eliminated the UUIDs from grub.conf, but the target device is still failing on boot because it's looking for the UUIDs from the source ...
- 165
3
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1
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Extending RAID0 with `mdadm --create --assume-clean`?
I had a 1-disk RAID0 array that I created with a view of adding more disks to it eventually, that was working normally. I created it with (approximately):
$ mdadm --create /dev/md0 --raid-devices=1 --...
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