Re: Sysadmin article
On Fri, Jun 15, 2001 at 09:45:53PM -0500, G. Adam Stanislav wrote: On Sat, Jun 16, 2001 at 02:22:39AM +0300, Giorgos Keramidas wrote: Matt has explained this better than I could ever do, in his tuning(7) manpage -- a recent, but very valuable addition to our manpages. It, indeed, must be very recent: I have upgraded my system just last month, but I have no tuning man page. Where can I get it from? http://www.FreeBSD.org/cgi/cvsweb.cgi/src/share/man/man7/tuning.7?rev=1.2content-type=text/x-cvsweb-markup --clark To Unsubscribe: send mail to [EMAIL PROTECTED] with unsubscribe freebsd-hackers in the body of the message
Re: Vinum RAID-5 performance problem
At 22:24 +0300 2000.09.08, Esko Petteri Matinsola wrote: read performance and seeks seems OK, but block writes only about 1/9th ! As I read from www.vinumvm.org I should get something like 5MBps block writes. Have I misunderstood something, configured someting improperly, it's because of only two IDE-controllers or why I get so lousy write performance ? Your configuration looks fine. I just recently tried a similar setup using Promise Ultra66 controllers with some Quantum and IBM drives (tried both). I got lousy performance doing sustained writes to a RAID5 volume, using 4 UDMA66 drives each a master on a controller. just doing a cat /dev/zero blah I just decided to stick with striping and make regular backups. I may try vinum with RAID5 on a SCSI array later. FWIW, FreeBSD 4.1-STABLE Abit BP6 dual 466 Celerons (not using the HPT controller) Promise Ultra66 Quantum KA 13.6 gig and IBM Deskstar 30 gig drives --clark To Unsubscribe: send mail to [EMAIL PROTECTED] with "unsubscribe freebsd-hackers" in the body of the message
