Date: Fri, 10 Jun 2005 08:23:41 +0200 From: Martin Nilsson <martin@mullet.se> To: timt@sharktech.net Cc: freebsd-net@freebsd.org Subject: Re: LSI MegaRaid 150-6 Message-ID: <42A931ED.8020601@mullet.se> In-Reply-To: <1118026528.42a3bb20a76ce@webmail.sharktech.net> References: <1118026528.42a3bb20a76ce@webmail.sharktech.net>
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timt@sharktech.net wrote: > Hello, > > This is the 2nd time I search for a resolution on this matter I could not find > any documents online regarding this issue. Why do you post to -net & -bugs, these are not the right lists for this kind of questions. stable or questions is better, and please don't cross-post. > At first we started installing FreeBSD5.4-RELEASE AMD64 LSI Megaraid was > detected and raid was running in optimal. When it asked me to choose the slice > it gave me a warning that the geometry for the drive is incorrect and to check > with the BIOS for the true geometry and if this is a SCSI please check with the > controller's algorithem (something). Which I searched online for with no clues. This is probably harmless, I've never had any problems with it. > Anyways went to system installation it starts installing bursting to 2600KB/s > and after 55% it goes down to 800KB/s than when reaching ports it goes down to > 33KB/s and this is CDROM installation!! The ports are lots of small files it takes time to write these to disk, this is normal. > When system is installed completly we ran dd on the system a constant average of > 2.1MB/s is the BEST performance we could get! Check that the write cache are enabled on all your SATA disks in CTRL-M objects->physical drive. I have run the 150-4/6 at over 100MB/s in FreeBSD so there should be no problem with this setup. Best Regards, Martin -- Martin Nilsson, CTO & Founder, Mullet Scandinavia AB, Malmö, SWEDEN E-mail: martin@mullet.se, Phone: +46-(0)708-606170, Web: www.mullet.se Our business is well engineered servers optimised for FreeBSD & Linux
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