Re: absurdly high "optimal_io_size" on Seagate SAS disk

[Martin K. Petersen]

>>>>> "Chris" == Chris Friesen <chris.friesen@xxxxxxxxxxxxx> writes:

Chris> Apparently the "hdparm -I" command is giving bogus data as well.
Chris> I've seen that happen if the drive is on a RAID controller--I
Chris> assume that could cause problems with firmware updates too?

I'd suggest trying /dev/sgN instead.

But yes, some RAID controllers require you to use their tooling and
won't allow direct passthrough.

-- 
Martin K. Petersen	Oracle Linux Engineering
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