isplist@xxxxxxxxxxxx wrote:
Thanks.
I'll look into this.
Does this have to be installed on every server in the cluster? Contacting the
vendor won't do me any good since I don't have support for 90% of the hardware
being used :). Has to be something I can do on my own with what I've got.
Mike
every box that has multiple paths would need to have it to behave
properly. Like i said before, it might not be that difficult.
You can use the default /etc/multipath.conf by just commenting out the
blacklist section. My default /etc/multipath.conf looks like this:
devnode_blacklist
{
##this block the primary local hard disk, change to meet your setup
devnode "^sda"
##this ignores lots of stuph that is not relevant at all in most
circumstances
devnode "^(ram|raw|loop|fd|md|dm-|sr|scd|st)[0-9]*"
##this blocks ide based devices
devnode "^hd[a-z][0-9]*"
##i dont remember what this blocks.
devnode "^cciss!c[0-9]d[0-9]*[p[0-9]*]"
}
defaults {
## use user friendly names, instead of using WWIDs as names.
user_friendly_names yes
}
I define a devices section for the emc box i work with that looks like this:
devices {
## Device attributes requirements for EMC Symmetrix
## are part of the default definitions and do not require separate
## definition.
## Device attributes for EMC CLARiiON
device {
vendor "DGC "
product "*"
path_grouping_policy group_by_prio
getuid_callout "/sbin/scsi_id -g -u -s /block/%n"
prio_callout "/sbin/mpath_prio_emc /dev/%n"
path_checker emc_clariion
path_selector "round-robin 0"
features "1 queue_if_no_path"
no_path_retry 300
hardware_handler "1 emc"
failback immediate
}
}
but thats not necessary. it should look at what you have and use
defaults based on pre-configured assumptions (correct me if i'm wrong ppl).
-greg
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