gistolero@xxxxxx ha scritto: > Hi Nicola, > > Nicola Murino wrote: > >> Hi, >> >> multipath seems to work on gentoo, I have to load the modules in proper >> order, this is my configuration: >> >> cat /etc/conf.d/local.start >> # /etc/conf.d/local.start >> >> # This is a good place to load any misc programs >> # on startup ( use 1>&2 to hide output) >> /sbin/modprobe dm-emc >> /sbin/modprobe qla2300 >> /bin/sleep 5 >> /sbin/udevstart >> /etc/init.d/multipathd start >> >> is critical the command udevstart without only one path is seen, > > > > After rebooting my system, I see only one path always: > > testhalde2 ~ # multipath -l > 150gb () > [size=150 GB][features="0"][hwhandler="0"] > \_ round-robin 0 [active] > \_ 0:0:0:1 sda 8:0 [active] > > > I have to run multipath again: > > testhalde2 ~ # multipath /dev/sda > reload: 150gb (3600508b40010079d0001900000460000) > [size=150 GB][features="0"][hwhandler="0"] > \_ round-robin 0 > \_ 0:0:0:1 sda 8:0 [active][ready] > \_ 1:0:0:1 sdb 8:16 [ready] > > Yes, after reboot I see only one path too, but when I run udevstart I see all paths, for this reason I put udevstart in /etc/conf.d/local.start >> I experienced a kernel oops with kernel-2.6.12 (both vanilla-sources and >> gentoo-sources) when I load qla2300 module, here are the logs: > > > I'm using a HP DL-380 G3 Proliant + Qlogic QLA 2340 (qla2300) with > 2.6.12.5 (vanilla). No kernel oops here. > I have qlogic 2322 and I must load dm-emc too, however kernel-2.6.13-gentoo-r1 works fine > >> P.S. for gistolero, I haven't your problem with multipathd (or so seems) >> however my hardware is different, I think also that the need to run >> udevstart is a gentoo bug, today gentoo has releases udev-0.68-r1 with >> start-stop script, if you read start script there is udevstart, however >> I haven't yet tested this script because they require unstable >> baselayout-1.12 > > > The same behavior with udev-068-r1. I don't think that this is a > gentoo bug, because distributions differ in udev _startup_ scripts > only. I know that I have to run udevstart after creating a new > udev.rules in /etc/udev/rules/. But after this, udev should parse > this rule after every change: > > udev 0.68-r1 needs unstable baselayout (1.12) to execute udev-start.sh, what baselayout are you using? > > After reboot... > > testhalde2 ~ # ls -lF /dev/mapper/ > brw------- 1 root root 254, 0 Sep 13 2005 150gb > brw------- 1 root root 254, 1 Sep 13 2005 150gb1 > brw------- 1 root root 254, 2 Sep 13 2005 150gb2 > crw-rw---- 1 root root 10, 63 Sep 13 2005 control > testhalde2 ~ # ls -lF /dev/1* > lrwxrwxrwx 1 root root 4 Sep 13 2005 /dev/150gb2 -> dm-2 > > testhalde2 ~ # udevstart > > testhalde2 ~ # ls -lF /dev/1* > lrwxrwxrwx 1 root root 4 Sep 13 13:00 /dev/150gb -> dm-0 > lrwxrwxrwx 1 root root 4 Sep 13 13:00 /dev/150gb1 -> dm-1 > lrwxrwxrwx 1 root root 4 Sep 13 13:00 /dev/150gb2 -> dm-2 > > Ok, udev knows the multipath udev-rule and creates this links. > > > > Deleting the multipath-table... > > testhalde2 ~ # dmsetup table > 150gb1: 0 64197 linear 254:0 63 > 150gb: 0 314572800 multipath 0 0 1 1 round-robin 0 2 1 8:0 1000 8:16 1000 > 150gb2: 0 314504505 linear 254:0 64260 > > testhalde2 ~ # dmsetup remove 150gb1 > testhalde2 ~ # dmsetup remove 150gb2 > testhalde2 ~ # dmsetup remove 150gb > testhalde2 ~ # dmsetup table > No devices found > > testhalde2 ~ # ls -lF /dev/mapper/ > total 0 > crw-rw---- 1 root root 10, 63 Sep 13 2005 control > > testhalde2 ~ # ls -lF /dev/1* > ls: /dev/1*: No such file or directory > > > > Creating the multipath-table... > > testhalde2 ~ # multipath /dev/sda > create: 150gb (3600508b40010079d0001900000460000) > [size=150 GB][features="0"][hwhandler="0"] > \_ round-robin 0 > \_ 0:0:0:1 sda 8:0 [ready] > \_ 1:0:0:1 sdb 8:16 [ready] > > testhalde2 ~ # ls -lF /dev/mapper/ > total 0 > brw------- 1 root root 254, 0 Sep 13 13:04 150gb > brw------- 1 root root 254, 1 Sep 13 13:04 150gb1 > brw------- 1 root root 254, 2 Sep 13 13:04 150gb2 > crw-rw---- 1 root root 10, 63 Sep 13 2005 control > > testhalde2 ~ # ls -lF /dev/1* > ls: /dev/1*: No such file or directory > > > No links in /dev/... I don't understand this, because > udev should read the multipath udev-rule again. > Perhaps I'm mistaken? > > Simon > > -- > > dm-devel@xxxxxxxxxx > https://www.redhat.com/mailman/listinfo/dm-devel >
