Compex Systems Advanced SerialRAID Adapters SA33-3285-02 - Manual (Page 366)

reassign operations. You must not use this flag when the ssa_certify
command is running concurrently on an active using system.
-n MaxReadSize
Specifies the maximum size, in kilobytes, of each read command that is sent
to the disk drive.
Default size for this flag = 3072 kilobytes
Minimum value that can be specified for this flag = 64 kilobytes
Maximum value that can be specified for this flag = 10240 kilobytes. Larger
values for the MaxReadSize can cause other requests to be delayed if the
ssa_certify command is run concurrently on an active using system
-b StartLBA
Specifies the RAID-5 array LBA from where the certify operation should start. If
this flag is not set, the certify operation starts from LBA 0.
-c Specifies that a count of unreadable blocks be printed.
346 User’s Guide and Maintenance Information