Date: Wed, 17 Oct 2007 17:23:00 +0100 From: Richard Tector <richardtector@thekeelecentre.com> To: Stefan Lambrev <stefan.lambrev@moneybookers.com> Cc: freebsd-current@freebsd.org Subject: Re: Very slow HP 8 Internal Port SAS HBA with RAID 0, 1 on Hot Plug SAS/SATA Models (LSI SAS1068 - mpt) Message-ID: <471636E4.90807@thekeelecentre.com> In-Reply-To: <47161A42.2050306@moneybookers.com> References: <47161A42.2050306@moneybookers.com>
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[-- Attachment #1 --] 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 [-- Attachment #2 --] 0 *H 01 0 + 0 *H <000 *H 01 0 UUK10U Staffordshire10 UKeele10U The Keele Centre1/0-U&The Keele Centre Certificate Authority0 060929142538Z 100929142538Z01 0 UUK10U Staffordshire10U The Keele Centre10URichard Tector1/0- *H richardtector@thekeelecentre.com00 *H 0 ;tbTjRsם N)B?fS?PYr ̏gxK?w;]؆!Lo -{,CzL`X0oA ,! 00 U 0 0, `HB OpenSSL Generated Certificate0 U y56N|Ad¯. H0U #0 4@-MxoW01 0 UUK10U Staffordshire10 UKeele10U The Keele Centre1/0-U&The Keele Centre Certificate Authority Xl~ u0 *H >a<<,a,u#8gfryQ31Zr_?&t Iooݔ_@ѝƶl!=7,C YE2&e5ss8 &K000 *H 01 0 UUK10U Staffordshire10 UKeele10U The Keele Centre1/0-U&The Keele Centre Certificate Authority0 060929142538Z 100929142538Z01 0 UUK10U Staffordshire10U The Keele Centre10URichard Tector1/0- *H richardtector@thekeelecentre.com00 *H 0 ;tbTjRsם N)B?fS?PYr ̏gxK?w;]؆!Lo -{,CzL`X0oA ,! 00 U 0 0, `HB OpenSSL Generated Certificate0 U y56N|Ad¯. H0U #0 4@-MxoW01 0 UUK10U Staffordshire10 UKeele10U The Keele Centre1/0-U&The Keele Centre Certificate Authority Xl~ u0 *H >a<<,a,u#8gfryQ31Zr_?&t Iooݔ_@ѝƶl!=7,C YE2&e5ss8 &K10001 0 UUK10U Staffordshire10 UKeele10U The Keele Centre1/0-U&The Keele Centre Certificate Authority0 + 0 *H 1 *H 0 *H 1 071017162300Z0# *H 1!a- l "bt0R *H 1E0C0 *H 0*H 0 *H @0+0 *H (0 +71001 0 UUK10U Staffordshire10 UKeele10U The Keele Centre1/0-U&The Keele Centre Certificate Authority0 *H 101 0 UUK10U Staffordshire10 UKeele10U The Keele Centre1/0-U&The Keele Centre Certificate Authority0 *H G6?FӢo:ەkyi6l@įo[ )jn ݄ &:IC֖;ʁ8oB L?خ59ϫq)m6[ =UBIa=z6ptKْ;
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