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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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Ubuntu 16.04 with software RAID 1 questions

I've purchased a new dedicated server with 2 x 240GB SSD drive, and installed Ubuntu 16.04 image from the provider's control panel which by default creates the software RAID 1. I also installed Webmin on this server and after looking at the Webmin's…
Jani
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Disable Raid 5 on an existing system

I have a server running in RAID 5 (software raid with 3 disks). Is there a way to disable the RAID 5 and just work on 1 disk (without formatting the pc)? (+Does changing RAID count as a hardware change and does it affect the Windows OS activation?)
juFo
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Is it a good a idea to create a fake raid 1 for guest on ESXi?

I have an old server with software raid and I would like to install ESXi with 2 hard disks. I have read that I can install a guest (i.e. Ubuntu Server) and add two hard disks in different datastores to create a fake raid 1 setup. Is it a good idea…
cgs83
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Raid-5 Linux Software array, 3 drives "removed"

I have a raid array with several drives marked as removed. I want to add them back in, but am not sure how to do so. [root@tera2 ~]# mdadm --detail /dev/md3 /dev/md3: Version : 1.2 Creation Time : Fri Nov 30 07:39:25 2012 Raid Level…
CD Brian
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Filesystem (or another use) for totally unreliable, old hard disks on a Linux system

I've got a couple of disks lying around which are small in capacity and old enough to be considered spinning spinning rust, my gut instinct is to not trust them, but the damn things still work. They're a collection of 320Gb and 500Gb disks I've got…
xconspirisist
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What are the pros/cons of software raid made up disk connected over SATA and others over USB?

I would like to use RAID1 with 1 SATA disk and 2 USB disks PS: This is an ARM board (cubietruck) with only 1 SATA port and 2 USB ports. PS2: The OS boots from a SD card :) PS3: The setup does not aim for speed but for data reliability. Edit: I…
David Andreoletti
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I accidently deleted the partition tables of my RAID6 drives

I accidentally deleted the partition table of 2 drives in my 4 drive RAID6 by reversing the order of sudo sgdisk -R=/dev/sdb /dev/sdz parted /dev/sdb print currently reports: Model: ATA ST2000DM008-2FR1 (scsi) Disk /dev/sdd: 2000GB Sector size…
soundsofpolaris
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HDrecover on soft raid arrays

I recently used hdrecover to repair a disk and it successfully repaired three bad sectors. How does hdrepair function on raid arrays, is it likely to break the array by repairing sectors?
Stephen
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Daily rsync instead of RAID 1?

I'm building a small home server, and in looking at software and/or hardware RAID1 and RAID5 and ZFS and whatever, I thought, "what if I just rsync daily between the two internal drives?". What are the cost/benefits of this? I like the idea of…
Eric Wolf
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raid 1 always degraded after pushing reset

I have Marvell hardware raid 1. After pushing reset or any other incorrect shutdown raid is degraded. Is it possible to create hardware raid 1 on other chips(intel chipset for example) for example or software raid 1 such that it is not degraded…
Vyacheslav
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is xfs a good raid setup?

I'm using amazon, and there is docs everywhere to use xfs. Is xfs a software based raid? Is it fast?
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