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Tips on setting up raid10 on *buntu

rated 0 times [ 1] [ 0] / answers: 1 / hits: 1040 / 3 Years ago, sat, july 3, 2021, 6:32:24

I'd like to set up a software raid 10 array (4x2TB) for a workstation using a fresh install, but I'm finding non applicable/conflicting/old resources online. I'd like to get the community's advice on setting up such an array as there appears to be a plethora of possible configurations.

Specifically, I'll be using the workstation for image analysis (i.e., typical file sizes from several hundred MB-several GB), so if there are optimizations that can be made for such purposes that would be great.

Cheers

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epypian

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2 Years ago

answered 3 Years ago sconhoney · Accepted Answer

I don't remember exactly what resources I followed when setting up my RAID on my server, but I think this article was the main point of information. Some important things:

Use mdadm and not dmraid.

Use /dev/disk/by-id/ paths to point at the disks, instead of /dev/sda etc… It's easier to map them to the physical devices, in case you need to replace a disk or such.

Be patient. At first I thought my RAID would be ready after the 5 hours initial setup time. Then it took another day to rebuild itself and actually be ready. (4x2TB)

Use a separate disk/partition/RAID for primary OS installs. It's easier to manage everything if you keep the large data RAID separate from primary OS and its data. Much easier to recover a small OS disk, than rebuild a huge multi-terabyte array, if something goes bad on the OS side.