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Osiris

Member

Registered: 2003-01-18

Posts: 160

Website

Fault-tolerant JBOD

Hello,

I want to store a large amount of data (as much as possible, at least around 10TiB), cost-efficiency and space are priorities over reliability. Still, I want to minimize risk of (complete) data loss. The disk array should appear as a single large volume.

First thing that comes to mind is a RAID 0. Major drawback is that if one drive fails, the entire RAID is blown.

Other RAID levels offer less than n times capacity.

My own idea: A kind of JBOD, the block layer ensures that no file is written on more that one disk. If one disks fails, only data on this disk is lost. (if the filesystem could handle that event)

Is something like that possible?

Thanks!

masteryod

Member

Registered: 2010-05-19

Posts: 433

Re: Fault-tolerant JBOD

LVM? https://wiki.archlinux.org/index.php/LVM

pyther

Member

Registered: 2008-01-21

Posts: 1,395

Website

Re: Fault-tolerant JBOD

Curious, what type of data are you dealing with, where loosing it, isn't important?

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Osiris

Member

Registered: 2003-01-18

Posts: 160

Website

Re: Fault-tolerant JBOD

Mirroring some university network content for the time after graduation.