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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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Email disappeared on qmail server

I'm beginning to be desperate regarding a mail that seems to have completely disappeared on my Ubuntu Linux 10.04 LTS 64 bit server running qmail+vpopmail. Every domain has a .qmail-default containing the following: /home/vpopmail/bin/vdelivermail…
Vering
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Raid 0+1 vs raid 1 and disk span in windows server 2012

What is the difference between hardware raid 0+1 and 2 or more RAID 0 with disk span? what are the differences: advantages and disadvantages?
user2119955
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How do RAID 0 Offers improved i/0?

Possible Duplicate: What are the different widely used RAID levels and when should I consider them? I wonder how RAID 0 offers better i/o. If i am not wrong in RAID 0 data gets split and stored in different HDD. in that case for every read…
Kevin Parker
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Software raid 0 with six disks performance

I have some problems with disk performance. I have 6 x WD 500Gb RE4 disks. Each disk gives 135Mb/sec throughput. All measurements are made with hdparm with options "-tT" (I know that it is just synthetic test, but I need some start point to make…
expream
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Determining the software RAID configuration on an Ubuntu server

I have an Ubuntu box which was installed by an admin who is not with me now. I have no information on how he configured the RAID and neither no experience on setting up a software RAID on Linux systems. I'd like to figure out "what is the RAID…
Achimnol
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Filesystem encryption settings during install?

I'm installing CentOS 6.1 on a server and exploring the encryption settings in combination with software RAID. Should I encrypt the drive partition, the software RAID device, or both? Should I encrypt swap? Wondering the pros/cons of each approach…
Rob Olmos
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Software RAID vs Hardware RAID

I need more info about RAID. I have a 1U server from Dell R210 with an onboard RAID controller, which I am not able to get to work with Ubuntu install, so I setup a software RAID on Ubuntu. My question is now, what can I do? Right now I am testing…
Paris Nakita Kejser
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Setup RAID 1 to install Windows without BIOS RAID or hardware RAID

I am looking for a software RAID or any technique that can do a RAID 1 from 2 NVMe and then I can install windows 11 on it. My BIOS has DAID but it only support SATA and not NVMe.
Khoa Of GOd
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Is Software RAID1 faster on a larger SSD?

I am evaluating 2 CentOS servers, in terms of performance of reading and writing to the database. The database sits on an SSD RAID1 pair, with MySQL 5.7 on each server. Server 2's specs are a bit better overall, except this: Server 1: Hardware…
janman05
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Can RAID be accidentally configured twice?

I am renting a server from Hetzner, which had 2x 8TB disks. I believe they were listed as RAID 1 (though can't find anything to confirm that anymore), which I would have assumed would have given me 16 TB usable space as RAID 1. I then ran this…
user2141650
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Can RAID 5 be made, when one or more of the disk is actually RAID 0?

I have this question since (I think) 3 years ago, but since I was never actually planning to build server, I just shrug it off. But tonight, I literally can't sleep because of this burning question. Lets say I have 3x 2TB disk. According to…
Rinaldo Jonathan
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Is it possible to "undo" a raid1 configuration

How can I reconfigure a raid1 so that it is not raid1 anymore and without loss of data? I do not want raid. I find myself with a server with predefined images that have a software raid1 setup. My guess is that there are 2 SSD disks of 1 GB size but…
Ely
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Restore files from software RAID 1

I accidentally erased my files from my MDADM raid when I created a Docker container and mapped my raid but after that all files in the raid disappeared. The discs are not currently being written or read. I want to ask what is the way I can recover…
mailoo95
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Raid 5 the hard disks on Hetzner

Hi ordered a server from Hetzner and added a 500GB SSD to the server. Ran the installerimage and Im not sure Software Raid is working on all three Hard Drives of mine. How can I add Soft Raid to the newly added SSD as well? I don't mind reinstalling…
sweatbar
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Is it possible to have multiple storage servers in a failover cluster?

I'm familiar with setting up RAID arrays and am running a few in my home environment. I was wondering if it's possible to have multiple storage servers in a failover configuration. What I hope to achieve with this is to have a certain redundancy…
Mephy
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