[Linux-cluster] SAN + multipathd + GFS : SCSI error
FM
dist-list at LEXUM.UMontreal.CA
Fri Aug 10 13:58:13 UTC 2007
Hello,
All servers are RHEL 4.5
SAN is HP EVA 4000
we are using linux qla modules and multipathd
cluster server have only one FC Card
In the dmesg of servers connected to GFS we have a lot of :
SCSI error : <0 0 1 1> return code = 0x20000
end_request: I/O error, dev sdd, sector 37807111
The cluster seems to work fine but I'd like to know if we can avoid this
error.
here is a multipathd -ll output :
[root at como ~]# multipath -ll
mpath1 (3600508b4001051e40000900000310000)
[size=500 GB][features="1 queue_if_no_path"][hwhandler="0"]
\_ round-robin 0 [prio=50][active]
\_ 0:0:0:1 sda 8:0 [active][ready]
\_ round-robin 0 [prio=10][enabled]
\_ 0:0:1:1 sdd 8:48 [active][ready]
mpath3 (3600508b4001051e400009000009e0000)
[size=150 GB][features="1 queue_if_no_path"][hwhandler="0"]
\_ round-robin 0 [prio=50][active]
\_ 0:0:1:2 sde 8:64 [active][ready]
\_ round-robin 0 [prio=10][enabled]
\_ 0:0:0:2 sdb 8:16 [active][ready]
and the device in the multipath.conf
devices {
device {
vendor "HP "
product "HSV200 "
path_grouping_policy group_by_prio
getuid_callout "/sbin/scsi_id -g -u -s /block/%n"
path_checker tur
path_selector "round-robin 0"
prio_callout "/sbin/mpath_prio_alua %d"
failback immediate
no_path_retry 60
}
}
More information about the Linux-cluster
mailing list