Could you tell me exactly how did you configure your raid? I mean
wb/read-ahead/blocksize/stripe etc.
Much appreciated.
-zsozso
On 2010.06.19. 14:26, Svein Skogen (Listmail Account) wrote:
On 19.06.2010 11:58, oizs wrote:
I tried almost everything raid 0 1 5 10 with all kind of stripes
32/64/128 and settings direct io/cached/read-ahead/wt/wb/disk-cache but
nothing seems to work.
I changed the card to another dell perc 5 which had an older firmware.
Tried 4 kind of motherboards even tried changing the os to linux and
windows xp/7. In windows I got some funny results 1.3MB/s with
write-back and 150MB/s reads with 5 disks in raid0.
I just wanted to have a hw raid with no problems since the motherboard
88sx7042 and bsd did not like eachother.
This is from a similar controller running that 8-disk raid5+0 setup:
--------------------------------------------------
CrystalDiskMark 2.2 (C) 2007-2008 hiyohiyo
Crystal Dew World : http://crystalmark.info/
--------------------------------------------------
Sequential Read : 665.383 MB/s
Sequential Write : 300.452 MB/s
Random Read 512KB : 616.604 MB/s
Random Write 512KB : 306.306 MB/s
Random Read 4KB : 64.465 MB/s
Random Write 4KB : 7.646 MB/s
Test Size : 100 MB
Date : 2010/06/19 14:24:12
You should be looking at number about half of these. I ran the test with
adaptive readahead enabled, and write-through for cache (since I run
with BBU, I normally use write-back)
//Svein
_______________________________________________
freebsd-current@freebsd.org mailing list
http://lists.freebsd.org/mailman/listinfo/freebsd-current
To unsubscribe, send any mail to "freebsd-current-unsubscr...@freebsd.org"
