I've a few questions:
- Does 'zpool iostat' report numbers from the top of the ZFS stack or at the
bottom? I've corelated the zpool iostat numbers with the system iostat numbers
and they matchup. This tells me the numbers are from the 'bottom' of the ZFS
stack, right? Having said that it'd be
Therein lies my dillemma:
- We know the I/O sub-system is capable of much higher I/O rates
- Under the test setup I've SAS datasets which are lending themselves to
compression. This should manifest itself as lots of read I/O resulting in much
smaller (4x) write I/O due to compression. This
Anantha N. Srirama writes:
Therein lies my dillemma:
- We know the I/O sub-system is capable of much higher I/O rates
- Under the test setup I've SAS datasets which are lending
themselves to compression. This should manifest itself as lots of read
I/O resulting in much smaller
