The following reply was made to PR kern/147086; it has been noted by GNATS.
From: "r...@ryanholt.net" <r...@ryanholt.net> To: Alexander Motin <m...@freebsd.org> Cc: bug-follo...@freebsd.org, Garrett Cooper <yanef...@gmail.com> Subject: Re: kern/147086: AHCI not being enabled on PC Date: Thu, 27 May 2010 09:55:56 -0400 (EDT) ------=_Part_64910_1088933982.1274968556941 MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: quoted-printable OK I got mvs compiled and the drives are using it now. Tested hot swap; rem= oved and replaced drives while writing data to the ZFS pool sitting atop. One is= sue I noticed is that the glabels don't seem to be read once I insert the disk ba= ck into the server. Seems like I need to re-label the drive and then replace i= t back into the zpool using zpool replace. Would this be an issue with ZFS an= d not the mvs driver? =C2=A0 Additionally, this might be a cabling issue or an issue with my drive cage,= but when I place a disk in slot 0 (port 0 on AOC-SAT2-MV8) I get mvsch0 timeout errors and the whole box locks up requiring a hard reboot. Placing the driv= e in slot 4 and utilizing slots 2-5 instead of 1-4 allows the server to boot up = fine / run fine. =C2=A0 Also, the drive pool seems a bit slow. Using the command... =C2=A0 dd if=3D/dev/urandom (and /dev/zero) of=3D/tank/test.file bs=3D1024 count= =3D102400=C2=A0 =C2=A0 Seems to indicate that I get somwhere between 15MB/sec (urandom) and 30 mb/= sec (zero). This card is on a PCI bus and therefore will be somewhat restricted= , but should it be reasonable to expect better performance than this out of a 4 d= isk Hitachi 1TB 7200 RPM 32mb cache raidz1 pool? Are there any other recommende= d tests to benchmark performance? =C2=A0 Thanks again for all your help! Ryan =C2=A0 On May 26, 2010 at 7:20 PM Alexander Motin <m...@freebsd.org> wrote: > r...@ryanholt.net wrote: > > OK Great. Should I re-compile my kernel with mvs as a device option? > > As you wish. Module should also be fine. > > -- > Alexander Motin ------=_Part_64910_1088933982.1274968556941 MIME-Version: 1.0 Content-Type: text/html; charset=UTF-8 Content-Transfer-Encoding: 7bit <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd";> <html xmlns="http://www.w3.org/1999/xhtml";> <head> <meta content="text/html; charset=UTF-8" http-equiv="Content-Type" /> <title></title> </head> <body> <p style="margin: 0px;">OK I got mvs compiled and the drives are using it now. Tested hot swap; removed and replaced drives while writing data to the ZFS pool sitting atop. One issue I noticed is that the glabels don't seem to be read once I insert the disk back into the server. Seems like I need to re-label the drive and then replace it back into the zpool using zpool replace. Would this be an issue with ZFS and not the mvs driver?<span></span></p> <p style="margin: 0px;"> </p> <p style="margin: 0px;">Additionally, this might be a cabling issue or an issue with my drive cage, but when I place a disk in slot 0 (port 0 on AOC-SAT2-MV8) I get mvsch0 timeout errors and the whole box locks up requiring a hard reboot. Placing the drive in slot 4 and utilizing slots 2-5 instead of 1-4 allows the server to boot up fine / run fine.</p> <p style="margin: 0px;"> </p> <p style="margin: 0px;">Also, the drive pool seems a bit slow. Using the command...</p> <p style="margin: 0px;"> </p> <p style="margin: 0px;">dd if=/dev/urandom (and /dev/zero) of=/tank/test.file bs=1024 count=102400 </p> <p style="margin: 0px;"> </p> <p style="margin: 0px;">Seems to indicate that I get somwhere between 15MB/sec (urandom) and 30 mb/sec (zero). This card is on a PCI bus and therefore will be somewhat restricted, but should it be reasonable to expect better performance than this out of a 4 disk Hitachi 1TB 7200 RPM 32mb cache raidz1 pool? Are there any other recommended tests to benchmark performance?</p> <p style="margin: 0px;"> </p> <p style="margin: 0px;">Thanks again for all your help!</p> <p style="margin: 0px;">Ryan</p> <p> </p> <div style="margin: 5px 0px 5px 0px; font-family: monospace;"> On May 26, 2010 at 7:20 PM Alexander Motin <m...@freebsd.org> wrote:<br /> <br /> > r...@ryanholt.net wrote:<br /> > > OK Great. Should I re-compile my kernel with mvs as a device option?<br /> ><br /> > As you wish. Module should also be fine.<br /> ><br /> > --<br /> > Alexander Motin<br /> </div> </body> </html> ------=_Part_64910_1088933982.1274968556941-- _______________________________________________ freebsd-bugs@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-bugs To unsubscribe, send any mail to "freebsd-bugs-unsubscr...@freebsd.org"
