su & sw for HW-RAID60

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Hello,

In an environment with an LSI 3108 based HW-RAID60, 256k stripe size on controller, 5 spans of (10data+2parity) disks.  What is the proper su & sw to use?  Do I do sw to the underlying 10 data disks per span? The top level 5 spans or all 50 data disks with the array?   Use case is as a file server for 20-60 MB per frame image sequences.

i.e

1) sw=256k,sw=10
2) sw=256k,sw=5
3) sw=256k,sw=50

RHEL 8.1


Thank you,
Alan




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