Questions tagged [raid]
Redundant array of independent/inexpensive disks; a technology which utilizes multiple disks to provide increased reliability, performance, and/or redundancy. Can be implemented either in software or with a hardware controller.
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Shrink RAID by removing a disk?
I have a Synology NAS with 12 bays. Initially, we decided to allocate all 12 disks for a single RAID-6 volume, but now we would like to shrink the volume to use only 10 disks and assign two HDDs as ...
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Use RAID for desktop computer?
I'm building a new computer over the summer. I'm fairly competent in computer hardware, and am thus building the computer from scratch. I have everything planned out, but I was wondering if I should ...
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Fail device in md RAID when ATA stops responding
I had created five 1TB HDD partitions (/dev/sda1, /dev/sdb1, /dev/sdc1, /dev/sde1, and /dev/sdf1) in a RAID 6 array called /dev/md0 using mdadm on Ubuntu 14.04 LTS Trusty Tahr.
The command sudo mdadm ...
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re-mount two old disk from raid0 setup to recover data
I had setup two 500gb disk in RAID0 on my server, but recently suffered a hard disk failure (saw a S.M.A.R.T error on the HDD at boot). My host has put 2 new disk in RAID-0 again (re-installed the OS) ...
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How to fix missing RAID1 drive
I had to do some fiddling about with my cables inside thebox and now I am getting a "Critical Error" about the RAID disks during startup. I have a gigabyte GA-MA770T-UD3 motherboard. Aparently the ...
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RAID for home use
Read so far most of RAID-related posts on this site, but still several points remain shaded so far.
First, my mode of working: I am writing music / doing graphical works, so the RAID is kinda semi-...
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One large or two smaller SSDs?
I'm looking at getting a Crucial M225 SSD. Now the question that's on my mind, is is it worth RAIDing these things? In fact are there any RAID downsides particular to SSDs that you don't see with ...
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Use the speed of an SSD + two HDDs in RAID 1
Is it possible to gain a speed benefit of an SSD if you create a software RAID with a big SSD + two small HDDs?
At the moment I have a system with only two 320GB HDDs. And I thought about inserting a ...
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RAIDing flash drives
The other day I had what I thought was a great idea - I could buy up a bunch of cheap USB 2.0 drives and fill up the spaces in my 7-port USB hub for a super-fast RAID device! But in the light of day ...
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RAID5 / RAIDZ - is it possible to enlarge without losing data?
If I have a RAID5 with 4x1TB drives, and then in, say, a year I decide to upgrade to 4x2TB, can I swap out one drive at a time, then let the parity rebuild, even if it's mixed-size drives?
Obviously ...
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Raid 0 - what happens with the data when hdds plugged into another motherboard
I am buying a new motherboard Asus M4A785TD-V EVO to replace the Asus A8N32 which has recently went dead.
The original motherboard has a NVIDIA NVRaid controller which I was using to strip (raid-0) ...
Scott
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How can I make mdadm auto-assemble RAID after each boot?
I successfully created a RAID (mirroring) by utilizing mdadm. However, I must run the following commands after each boot:
mdadm --stop --scan // to stop /dev/md127 - I don't know where the number 127 ...
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How to get an inactive RAID device working again?
After booting, my RAID1 device (/dev/md_d0 *) sometimes goes in some funny state and I cannot mount it.
* Originally I created /dev/md0 but it has somehow changed itself into /dev/md_d0.
# mount /...
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Onboard RAID vs Software RAID
My motherboard, an Asus M4a79t Deluxe, advertises RAID 0/1/5 capabilities. My limited understanding is that onboard RAID is better than software RAID. Is this necessarily true? Is an onboard RAID ...
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Matched or unmatched drives for RAID arrays?
Looking around there is conflicting information on this, with some strongly suggesting one or the other.
From my understanding the issue with matched drives is that the wear on both drives is more or ...
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