Hi guys, sorry in advance if this is somewhat a lowly question, I've recently
built a zfs test box based on nexentastor with 4x samsung 2tb drives connected
via SATA-II in a raidz1 configuration with dedup enabled compression off and
pool version 23. From running bonnie++ I get the following results:
Version 1.03b ------Sequential Output------ --Sequential Input- --Random-
-Per Chr- --Block-- -Rewrite- -Per Chr- --Block-- --Seeks--
Machine Size K/sec %CP K/sec %CP K/sec %CP K/sec %CP K/sec %CP /sec %CP
nexentastor 4G 60582 54 20502 4 12385 3 53901 57 105290 10 429.8 1
------Sequential Create------ --------Random Create--------
-Create-- --Read--- -Delete-- -Create-- --Read--- -Delete--
files /sec %CP /sec %CP /sec %CP /sec %CP /sec %CP /sec %CP
16 7181 29 +++++ +++ +++++ +++ 21477 97 +++++ +++ +++++ +++
nexentastor,4G,60582,54,20502,4,12385,3,53901,57,105290,10,429.8,1,16,7181,29,+++++,+++,+++++,+++,21477,97,+++++,+++,+++++,+++
I'd expect more than 105290K/s on a sequential read as a peak for a single
drive, let alone a striped set. The system has a relatively decent CPU, however
only 2GB memory, do you think increasing this to 4GB would noticeably affect
performance of my zpool? The memory is only DDR1.
Thanks in advance.
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