Re: [Xen-users] bad I/O performance with HP Smart Array RAID

[Thomas Aeby <aeby@xxxxxxxxxx>]

DOGUET Emmanuel wrote:
>  And what about the Write Cache on all your RAID card? 
>  On SmartArray P400i it's an option :/
>  I have buy one for trying.
Well, I'd expect the RAID controller to deliver at least the throughput 
of a ATA-133 controller without the battery buffered write cache.
But it seems that I might have been a little too fast blaming this on 
Xen. Googling for cciss performance issues is quite enlightening. 
However, I haven't found a solution so far, though tuning a few driver 
parameters gave a few Megs/s more.
Best regards,
Tom
--
------------------------------------------------------------------------
Thomas Aeby, Kirchweg 52, 1735 Giffers, Switzerland
Voice : (+41)26 4180040
Internet: aeby@xxxxxxxxxx                       PGP public key available
------------------------------------------------------------------------

_______________________________________________
Xen-users mailing list
Xen-users@xxxxxxxxxxxxxxxxxxx
http://lists.xensource.com/xen-users