I have an Intel P-III running at 450 MHz on an Intel SE440BX-2
motherboard with patched 2.2.14 kernel raidtools 0.90
RAID-5 array consists of 3 "Maxtor 51536U3" drives. One drive is master
on secondary motherboard IDE port. (no slave)
The other 2 are alone on the primary and secondary of a Promise Ultra
ATA/66. The raid is configured as follows:
[root@porgy /proc]# cat mdstat
Personalities : [raid5]
read_ahead 1024 sectors
md0 : active raid5 hdg1[1] hde1[0] hdc1[2] 10005120 blocks level 5, 64k
chunk, algorithm 0 [3/3] [UUU]
md1 : active raid5 hdg5[2] hde5[1] hdc5[0] 10005120 blocks level 5, 64k
chunk, algorithm 0 [3/3] [UUU]
md2 : active raid5 hdg6[2] hde6[1] hdc6[0] 10004096 blocks level 5, 64k
chunk, algorithm 0 [3/3] [UUU]
unused devices: <none>
[root@porgy /proc]#
The following test was run on /dev/md2 mounted as /usr1
[degan@porgy tiobench-0.29]$ ./tiobench.pl --block 4096
No size specified, using 510 MB
Size is MB, BlkSz is Bytes, Read, Write, and Seeks are MB/sec
File Block Num Seq Read Rand Read Seq Write Rand
Write
Dir Size Size Thr Rate (CPU%) Rate (CPU%) Rate (CPU%) Rate
(CPU%)
------- ------ ------- --- ----------- ----------- -----------
-----------
. 510 4096 1 21.63 10.4% 0.757 0.87% 19.62 17.1% 0.799
2.45%
. 510 4096 2 22.89 12.0% 0.938 0.90% 20.18 17.7% 0.792
2.38%
. 510 4096 4 21.85 12.5% 1.113 1.09% 20.37 18.1% 0.784
2.19%
. 510 4096 8 20.57 13.1% 1.252 1.34% 20.54 18.5% 0.776
2.34%
I am not sure what to make of the results and am happy with my RAID
operation.
I only post them FYI.
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| Douglas Egan Wind River |
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