Hi, Richard Tector wrote: > Stefan Lambrev wrote: >> Hi list, >> >> I'm having problems with the raid controller of HP ProLiant DL140 G3 >> Server and RELENG_7 >> >> I have 2x 500GB SATA HDDs configured as mirror, but the write speed >> is very slow ~7MB/s. >> >> I guess that there is no battery for the raid controller and the >> write cache is off, but 7MB/s .. >> Also there is no way to see the status of the raid from FreeBSD ? >> >> Any ideas how to improve this? > > Write cache is the most probable cause. > You can force it on with: > hw.mpt.enable_sata_wc=1 > See: > http://www.freebsd.org/cgi/cvsweb.cgi/src/sys/dev/mpt/mpt.c?rev=1.42;content-type=text%2Fx-cvsweb-markup > > > Hope that helps. > > Regards, > > Richard Tector This have to be put in /boot/loader.conf as I do not see such sysctl? Anyway I'll force the write cache to be always on from the raid configuration if this does not work. -- Best Wishes, Stefan Lambrev ICQ# 24134177Received on Wed Oct 17 2007 - 14:39:44 UTC
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