[Bug 1013724] Re: Setting "prio const" in multipath.conf has no effect

Vassilis Vatikiotis 1013724 at bugs.launchpad.net
Tue Jul 10 17:55:16 UTC 2012


multipath.conf follows. The file is heavily commented so I trimmed all
comments out

defaults {
	user_friendly_names	yes
}
blacklist {
	devnode "^(ram|raw|loop|fd|md|dm-|sr|scd|st)[-1-9]*"
	devnode "^hd[a-z][[0-9]*]"
	wwid 3600508b1001cea3b91ee45c710e467a7 #sda
	devnode "sr0"
}

devices {
	device {
		vendor "HITACHI "
		product "DF600F.*"
		no_path_retry queue
		prio const
		path_grouping_policy multibus
		getuid_callout "/lib/udev/scsi_id --whitelisted --device=/dev/%n"
		checker tur
	}
}

Here's the _full_ output of multipath -ll
# multipath -ll
Error: : Inappropriate ioctl for device 
cciss TUR  failed in CCISS_GETLUNINFO: Inappropriate ioctl for device                     <---- 
mpath0 (360060e80104dac0004f349c800000000) dm-0 HITACHI,DF600F
size=100G features='1 queue_if_no_path' hwhandler='0' wp=rw
|-+- policy='round-robin 0' prio=1 status=active
| `- 5:0:0:0 sdc 8:32 active ready  running
`-+- policy='round-robin 0' prio=0 status=enabled
  `- 4:0:0:0 sdb 8:16 active ready  running

I cannot flush even when the multipath and iscsi daemon are stopped.
# multipath -F
Jul 10 20:46:12 | mpath0: map in use

mpath0 is used by device-mapper
# dmsetup ls
mpath0-part1	(252, 1)
mpath0	(252, 0)

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https://bugs.launchpad.net/bugs/1013724

Title:
  Setting "prio const" in multipath.conf has no effect

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