Mikael Carneholm wrote:
Btw, here's the bonnie++ results from two different array sets (10+18,
4+24) on the MSA1500:
LUN: DATA, 24 disks, stripe size 64K
-------------------------------------
Version 1.03 ------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
sesell01 32G 59443 97 118515 39 25023 5 30926 49 60835 6
531.8 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 2499 90 +++++ +++ +++++ +++ 2817 99 +++++ +++
10971 100
It might be interesting to see if 128K or 256K stripe size gives better
sequential throughput, while still leaving the random performance ok.
Having said that, the seeks/s figure of 531 not that great - for
instance I've seen a 12 disk (15K SCSI) system report about 1400 seeks/s
in this test.
Sorry if you mentioned this already - but what OS and filesystem are you
using? (if Linux and ext3, it might be worth experimenting with xfs or jfs).
Cheers
Mark
