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good to see you fixed it. You mentioned that you didn't need to retrieve data from the drives, so I assume you're in the early build and test stages. I'd suggest configuring one of the adaptec controllers in JBOD mode, and comparing performance (using bonnie++) with HW RAID6 vs mdadm RAID6. If you've got (or can install) an SSD, test mdadm again while using bcache. And then, test performance again using RAID-10 (total of 8TB rather than 12TB). with and without bcache. Finally, try btrfs and/or ZFS on JBOD.

cas
– cas

2016-07-30 04:11:24 +00:00
Commented Jul 30, 2016 at 4:11
Other useful refs: btrfs. ZFS On Linux. See also Why RAID 6 stops working in 2019. Google will find you a lot more info but beware of old pages with outdated info (esp. for btrfs). BTW, don't use btrfs or zfs on top of other (SW or HW) RAID - you lose one of their most useful features (bitrot/error detection and correction)

cas
– cas

2016-07-30 04:12:00 +00:00
Commented Jul 30, 2016 at 4:12
Thank you very much, @cas I appreciate the tips to explore other options! Great learning experience.

harperville
– harperville

2016-07-31 13:52:16 +00:00
Commented Jul 31, 2016 at 13:52

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