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RHEL 3 x86 and LSI Megaraid

RHEL 3 x86 and LSI Megaraid

2003-10-23       - By Jesse Keating

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On Thursday 23 October 2003 15:05, Arjan van de Ven wrote:
> how are you measuring?
> Please use dd on a file not /dev/sdc since devices don 't do readahead

We were using hdparm -t, as well as tiobench. Overall performance seems
to be around 12~20MB/s

[root@(protected) data1]# ls -alh bigfile
rw-r--r-- 1 root root 1000M Oct 23 18:23 bigfile

[root@(protected) data1]# time dd if=bigfile of=secondfile
2048000+0 records in
2048000+0 records out

real 0m55.419s
user 0m1.530s
sys 0m24.570s

This is a hardware mirror of 2 10K rpm Seagate 73gig u320 drives.

Thats like 18M/s, not very stellar.

--
Jesse Keating RHCE MCSE (geek.j2solutions.net)
Fedora Legacy Team (www.fedora.us/wiki/FedoraLegacy)
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