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Questions tagged [raid6]

RAID6 is a method of configuring fault-tolerant hard drive storage. It is similar to RAID5, but differs in that it writes two sets of parity information, thus can survive the simultaneous failure of two hard drives.

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mdadm raid6 built, but no mounting or fsck

I had some problems with my RAID 6 drive on mdadm recently. No LVM in between. Two drives died, and were pulled out while the machine was powered down. Now, I boot up the system, and cannot mount the raid. mdstat says that the raid is…
Ryan Gooler
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Which partition size for fresh install Debian Wheezy with 6 Disk in Raid?

i want to install Wheezy on a System with 6x3TB Disk. The aim is to use the most of it for a samba share. My idea is to make: 1 partition on each disk for gpt with 100MB 1 partition for "/" with 3GB on each Disk in Raid1, which makes 9GB at all 1…
Sunghost
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Disabling Server 2003 Wonderware App Server Page File on VMware

There are so many threads on whether you should mess with the page file or not. This scenario describes a unique circumstance that is real world in my production enviornment. The conclusion I've come to in order to fix my problem is to disable the…
Lucretius
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3ware raid controller, unit unusable, several degraded disks

I was switching the disk drives in my server, running RAID 6 on 5 disks on a 3ware 9650SE controller, for newer disks and have run into a problem. The two first disks went fine, I took out one disk and inserted a new one, let the array rebuild and…
user155563
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mdadm: superblock on /dev/sdd1 doesn't match others - assembly aborted

OS: Debian Squeeze Kernel: 2.6.32-5-amd64 mdadm version: 3.1.4 (31 August 2010) mdarrays md1 = raid1 (this is working) (devices: /dev/sd[fg]1) md0 = raid6 (previously raid5, now failing to start) (devices:…
Waxhead
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Which RAID/LVM configuration for new 2x8TB file server is safest?

I just built a totally new PC to be a fileserver. It has one 60gb SSD for OS (ubuntu 12.04), and 8 2tb data drives in it. I am looking for the safest, most stable way to set up a single giant storage pool with redundancy. Considerations: My TOP…
user1169420
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HP Storageworks MSA60, one failed disk replaced, all 12 bays flashing rapidly

I replaced a faulty disk yesterday afternoon, and the rebuild process started (RAID6). All disks were previously 750GB, but the only disk I could get is 1TB. Right now, almost 18 hours after replacing the disk, all 12 disks are flashing rapidly…
skilleras
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How to identify RAID (5 or 6) controllers that allow dynamic resize of the array

I'm building a server with a RAID5 array, based on a hardware controller. I want to be able to later add additional disks and have the array rebalance across all of the disks, enlarging the usable size. I also want to be able to later upgrade to…
David Pfeffer
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Is it possible to get a RAID array to rebuild on disks in different bays?

I have a RAID-6 Sata SSD array running on a new HPE Smart Array P408i-a SR Gen10. Unfortunately, two of the bays in the new server have failed, leaving us in a very precarious situation. We have moved the SSDs into two spare bays, and they are…
mwfearnley
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Need confirmation on how iSCSI RAID storage works

I have a Dell PowerEdge server with Windows Server 2019 that has an iSCSI target set up with 30 iSCSI LUNs. The HDDs are set up in a RAID-6. I have some IP cameras that have the ability to record directly to an iSCSI target that I can't get to…
David
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Is RAID 6 a good choice regarding performance on server used for computation?

We are operating a server for doing computations with large data sets (100GB - 5TB) for a small group of researchers (10-20 people). At the moment we are running 4x8TB spinning drives in a RAID 6 using mdadm and Btrfs on top of that (no Btrfs RAID).…
lumbric
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What would you call this "RAID" ? RAID 1+6?

I have Snapraid running as snapshot RAID6 (2-parity disks) for my 9 disk array which calculates new parity once a day. Then I have Drivepool duplicating certain very important folders on the array to all the data disks in realtime as in RAID1.…
Osjur
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Windows Server 2012/2016 simulated RAID6 in software with 4 disks

Does anyone know how to emulate RAID6 in software on Windows server using 4 disks? The solution must provide for the failure of any two disks (like RAID-6 in Linux). Thank you, Joe
user308958
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Which raid array will be best practices with seven 1.2 tb hdd system

I have a server which have seven 1.2 tb hard disks. I have to create raid array but i don't decide which raid i use? First of all, first and most important matter is security. At any cost i must not to lose data. So, i think raid 6 and one hot…
cem
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Can RAID 6 support 3 or more parities?

It doesn't seem right to me that people are using RAID 1+0, RAID 5+0, or RAID 6+0 instead of using a RAID with 3 or more parities (akin to RAID 6) because the latter has a better reliability given the same level of redundancy.     Consider the case…
James Haigh
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