Stat
iostat
zpool iostat -r
-r- request size- individual I/O (ind)
- aggregate I/O (agg)
data sync_read sync_write async_read async_write scrub trim
req_size ind agg ind agg ind agg ind agg ind agg ind agg
---------- ----- ----- ----- ----- ----- ----- ----- ----- ----- ----- ----- -----
512 0 0 0 0 0 0 0 0 0 0 0 0
1K 0 0 0 0 0 0 0 0 0 0 0 0
2K 0 0 0 0 0 0 0 0 0 0 0 0
4K 108K 0 355K 0 2.98K 0 1.98M 0 116 0 0 0
8K 2.56K 1.34K 94.6K 0 330 120 127K 583K 14 19 0 0
16K 453 2.47K 443K 831 79 427 13.0K 317K 0 9 0 0
32K 0 222 0 10.2K 0 271 0 123K 0 0 0 0
64K 32 11 128 48.4K 0 281 0 492K 0 0 0 0
128K 0 0 0 0 0 54 0 94.7K 0 0 0 0
256K 0 0 0 0 0 0 0 0 0 0 0 0
512K 0 0 0 0 0 0 0 0 0 0 0 0
1M 0 0 0 0 0 0 0 0 0 0 0 0
2M 0 0 0 0 0 0 0 0 0 0 0 0
4M 0 0 0 0 0 0 0 0 0 0 0 0
8M 0 0 0 0 0 0 0 0 0 0 0 0
16M 0 0 0 0 0 0 0 0 0 0 0 0
----------------------------------------------------------------------------------------------
-laverage latency
SSD
capacity operations bandwidth total_wait disk_wait syncq_wait asyncq_wait scrub trim
pool alloc free read write read write read write read write read write read write wait wait
---------- ----- ----- ----- ----- ----- ----- ----- ----- ----- ----- ----- ----- ----- ----- ----- -----
data 69.9G 6.92T 2 89 11.4K 2.05M 585us 1ms 559us 358us 21us 14us 155us 1ms 194us -
HDD
capacity operations bandwidth total_wait disk_wait syncq_wait asyncq_wait scrub trim
pool alloc free read write read write read write read write read write read write wait wait
---------- ----- ----- ----- ----- ----- ----- ----- ----- ----- ----- ----- ----- ----- ----- ----- -----
data 1.31T 42.3T 9 49 214K 2.35M 4ms 24ms 2ms 10ms 874us 2us 1ms 20ms 36ms -