14x wide raidz3 Performance
Hi guys, i am building a new server with 14x 28TB Exos drives, mainly as media server. Access is only 1-2 users and mainly streaming. Files are big (2G-10G).
- Recordsize: I am planing to use at least 4M, any suggestions for lower or higher?
2a) I am worried about resilver performance when a drive failures… any real world examples from you guys with similar setups? I am hoping wirh big recordsize and large files it would be not so bad?
2b) During resilvering, is the maximum limit the sequential write of one drive since only on the new drive is written and on all other drives is reading? If yes, the 13x drives are almost idle‘ing because rhey are waiting for one drive writes (the new one) ?
Any zfs parameters to optimize for this setup? Any recommendations?
FYI: I know 2x raidz2 is am option but i need the additional space and do not need more IO.