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Questions tagged [software-raid]

RAID solution handled by the operating system.

Software RAID is implemented in the OS. It uses CPU to handle the RAID setup. It is cheaper than hardware raid. It often doesn't support features which you can find with hardware raid like:

  • hot spare
  • fast rebuilding of an array
  • hot swapping
  • high write throughput

Another problem is that it uses the CPU and memory of the computer to perform all the tasks (hardware raidcards have a special cpu and memory for this task). Therefor generating more load on your system.

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Ext4 corrupted after RAID failure and fsck taking too long to run

I am completely lost :( I got software RAID10 with 4 drives, one of them failed yesterday, right before or after the failure system crashed and restarted. It started data rebalancing and completed it successfully, however it still can't mount raid10…
Alex N
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Software MDADM RAID 5 - Inactive MD0 showing

I have Linux (Crunchbang 8.10) set up with 3x1TB Hard drives set up as software RAID5. It has recently suddenly stopped working. cat /proc/mdstat shows the following: Personalities : [linear] [multipath] [raid0] [raid1] [raid6] [raid5] [raid4]…
iali
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PCI-E 2.0 x8 SAS/SATA RAID controllers recommendations for Ubuntu 10.04?

What RAID controllers are there that meet the following? Works out of the box with good performance with Ubuntu 10.04 LTS PCI-E 2.0 x4 or x8 Support for 8 or more SATA/SAS 6Gb/s drives Enough internal bandwidth to support full speed of all drives…
Dan Nuffer
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Fedora NAS software raid?

Hey guys, we got a new linux server for the office, and my boss decided I would install the software, but I have no clue what software to use. I am looking for network drive support for window boxes (both laptop, and desktops) on our local LAN, and…
Jess
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ubuntu raid problem - different arrays configured, defferent mounted

I've just finished setting up my new ubuntu server 10.4 machine, with 2x500 GB SATA disks - which I intended to configure in raid1; specifically, that's what I did during the instalation process: partitions: disk 1 - sda: sda1 - 500mb primary sda2…
donwito
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raid 5 creation (using mdadm) lots of read/writes on creation: is this normal?

I created a software raid 5 disk using: mdadm -C /dev/md2 -l5 -n4 /dev/sd[i-l] at the same time I'm using dstat to see io-activity: dstat -c -d -D total,sda1,md2,sdi,sdj,sdk,sdl -l -m -n and notice that disks sd[i-k] are all read from and sdl is…
Gbrits
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RAID FS detection at boot time

An excerpt from dmesg: md: Autodetecting RAID arrays. md: Scanned 2 and added 2 devices. md: autorun ... md: considering sdb1 ... md: adding sdb1 ... md: adding sda1 ... md: created md1 md: bind md: bind md: running:…
yanchenko
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Mdadm Raid5 kicking non-fresh drive from array

I set up a mdadm raid5 with 3 drives initially: sdc1, sdd1, sde1. They array creation was successful without issues. Later I decided to extend the array using one more drive. After proper partitioning, I added the device sdf1 to the array and…
ricardo3889
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Debian bookworm installation software raid grub fails with dummt error

On a server I'm trying to install Debian Bookworm with software RAID1 with three disks. I'm following this guide. Three disks have been configured to use RAID and I've setup the RAID1 device as in the screenshot and a Volume Group. Then I added…
Postie
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SSD Software-Raid-0 Ubuntu not as fast as expected

I have an MB ASRock B650 Phantom with two SSD 1TB Samsung 990 PRO m.2 PCIe 4 drives. I set them up in a software Raid-0 with lukscrypt on Ubuntu. The SSD should reach 7.450 MB/s reading, in my naivety I expected almost twice the speed in a RAID-0,…
Marc Johnen
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ZFS I/O Error, Kernel Panic during import

I'm running a raidz1-0 (RAID5) setup with 4 data 2TB SSDs. During midnight, somehow 2 of my data disks experience some I/O error (from /var/log/messages). When I investigated in the morning, the zpool status shows the following : state:…
Jealous_Donut_7128
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Best practice to install proxmox (7 or newer) on server

i did a lot of research and i am still wondering, where to install os (proxmox). We have ProLiant DL560 gen8 and gen9. My options: micro SD card 32/64GB, not good because of lots of writings from proxmox usb 32/64GB 2x SAS disk 300/400GB, RAID1…
JanOlMajti
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Migrating server and backup server to bigger RAID 1 (software) arrays

I have 2 boxes. The server (actually an ownCloud server) and a backup server. Both are running Ubuntu servers. The main server has a RAID 1 array of 2x2TB drives. The backup server has a RAID 1 array of 2x4TB drives (it is running incremental time…
Ben Edwards
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Many drives in two RAID6 arrays simultaneously failed, seem to be working after reboot except SMART long test

in my storage server, I operate three RAID6 Linux software arrays. Everything was working fine until it was not. There are two RAID6 arrays and one RAID5 array, all consisting of SATA drives, all connected to a HBA9500-16i controller. Suddenly,…
michalt
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RAID1 M.2 SSD (2 Drives) | 1 Failed, I removed and Replaced with a new one, but its state stays "removed"

I have a Ubuntu Server RAID1 M.2 SSD (2 Drives) where 1 Failed, I removed and Replaced with a new one, but its state stays "removed". I am new to RAID Stuff, Below are my RAID Details: cat /proc/mdstat Personalities : [raid1] [linear] [multipath]…
tj0xin
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