Ah nuts...forgot to save the one file before attaching. Here is the missing manual_run.txt file -----Original Message----- From: dm-devel-bounces@xxxxxxxxxx [mailto:dm-devel-bounces@xxxxxxxxxx] On Behalf Of Greene, Rick Sent: Thursday, January 31, 2008 3:20 PM To: device-mapper development Subject: Multipath not rebuilding correctly on reboot Now that I seem to have multipath and my XP 1024 working together, I've found a new issue. Someone recently had a similar thread going, but I saw no ultimate resolution. My problem is that when I reboot my server, the multipath configuration is not coming back the way it was before. I moved the two external tools I use to find the UID into /etc (they had bin in /usr/bin and /sbin), updated the multipath.conf file (and one of the scripts) to reflect this, but odd things are still happening. Attached is initial_view.txt, which shows what multipath is coming up with when I do the commands shown (the bulk of the file is multipath -v3 output, but at the bottom of the file is a multipath -ll output as well). It (seems to) correctly shows that I have 4 disks, each visible via two separate paths. After I reboot, however, I get different results. Once it showed 4 paths for mpath0, and 2 paths for mpath1, 2, and 3. Next time it correctly showed mpath0, mpath1, and mpath3, but didn't show mpath2 at all. On the next attempt I got everything correct, and the very next one only showed mpath0 and mpath1. The post_reboot.txt file shows the contents of the /var/log/boot.log file and the output of the dmesg command, along with the "multipath -ll" view from the most recent reboot. I then manually did a "multipath -v2" and the missing two paths then came back. The file manual_run.txt shows those results plus the updated "multipath -ll". Do I need to just make my own /etc/init.d script to do a "multipath -v2" at the end of booting to make sure it all gets covered, along with the requisite LVM & mount commands to get the VG that is on these disks working right? Thanks in advance, Rick
# multipath -v2 create: mpath2 (00040026_05:85) [size=13 GB][features="0"][hwhandler="0"] \_ round-robin 0 \_ 1:0:0:2 sdc 8:32 [ready] \_ 2:0:0:2 sdg 8:96 [ready] create: mpath3 (00040026_05:86) [size=13 GB][features="0"][hwhandler="0"] \_ round-robin 0 \_ 1:0:0:3 sdd 8:48 [ready] \_ 2:0:0:3 sdh 8:112 [ready] [root@corux38 ~]# multipath -ll mpath2 (00040026_05:85) [size=13 GB][features="0"][hwhandler="0"] \_ round-robin 0 [active] \_ 1:0:0:2 sdc 8:32 [active][ready] \_ 2:0:0:2 sdg 8:96 [active][ready] mpath1 (00040026_05:84) [size=13 GB][features="0"][hwhandler="0"] \_ round-robin 0 [enabled] \_ 2:0:0:1 sdf 8:80 [active][ready] \_ 1:0:0:1 sdb 8:16 [active][ready] mpath0 (00040026_05:83) [size=13 GB][features="0"][hwhandler="0"] \_ round-robin 0 [enabled] \_ 2:0:0:0 sde 8:64 [active][ready] \_ 1:0:0:0 sda 8:0 [active][ready] mpath3 (00040026_05:86) [size=13 GB][features="0"][hwhandler="0"] \_ round-robin 0 [active] \_ 1:0:0:3 sdd 8:48 [active][ready] \_ 2:0:0:3 sdh 8:112 [active][ready]
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