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Bug 1510839

Summary: Please add TUR path checker to default hardware table for Nimble devices [rhel-7.4.z]
Product: Red Hat Enterprise Linux 7 Reporter: Oneata Mircea Teodor <toneata>
Component: device-mapper-multipathAssignee: Ben Marzinski <bmarzins>
Status: CLOSED ERRATA QA Contact: Lin Li <lilin>
Severity: urgent Docs Contact:
Priority: urgent    
Version: 7.4CC: agk, bmarzins, heinzm, jbrassow, lilin, msnitzer, prajnoha, rhandlin, shiva.krishna
Target Milestone: rcKeywords: ZStream
Target Release: ---   
Hardware: x86_64   
OS: Linux   
Whiteboard:
Fixed In Version: device-mapper-multipath-0.4.9-111.el7.1 Doc Type: Bug Fix
Doc Text:
Previously, Nimble devices used the default path_checker method, directio, which incorrectly failed on passive paths. With this update, the Nimble built-in configuration now specifies the TUR path_checker method instead. As a result, passive paths on Nimble arrays now have the correct path state.
Story Points: ---
Clone Of: 1482629 Environment:
Last Closed: 2018-01-25 11:39:30 UTC Type: ---
Regression: --- Mount Type: ---
Documentation: --- CRM:
Verified Versions: Category: ---
oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: --- Target Upstream Version:
Embargoed:
Bug Depends On: 1482629    
Bug Blocks:    

Description Oneata Mircea Teodor 2017-11-08 10:17:34 UTC
This bug has been copied from bug #1482629 and has been proposed to be backported to 7.4 z-stream (EUS).

Comment 2 Ben Marzinski 2017-11-08 23:32:22 UTC
updated config backported.

Comment 6 shivamerla1 2017-11-08 23:52:09 UTC
Awesome. Thanks Ben.

Comment 7 Lin Li 2017-11-14 13:56:22 UTC
Reproduced on device-mapper-multipath-0.4.9-111
1, # rpm -qa | grep multipath
device-mapper-multipath-libs-0.4.9-111.el7.x86_64
device-mapper-multipath-0.4.9-111.el7.x86_64

2, # multipathd show config
	device {
		vendor "Nimble"
		product "Server"
		path_grouping_policy "group_by_prio"
		path_selector "round-robin 0"
		features "1 queue_if_no_path"
		hardware_handler "1 alua"
		prio "alua"
		failback immediate
		fast_io_fail_tmo 1
		dev_loss_tmo "infinity"
	}



Verified on device-mapper-multipath-0.4.9-111.el7_4.1
1, # rpm -qa | grep multipath
device-mapper-multipath-0.4.9-111.el7_4.1.x86_64
device-mapper-multipath-sysvinit-0.4.9-111.el7_4.1.x86_64
device-mapper-multipath-libs-0.4.9-111.el7_4.1.x86_64
device-mapper-multipath-devel-0.4.9-111.el7_4.1.x86_64
device-mapper-multipath-debuginfo-0.4.9-111.el7_4.1.x86_64

2,  # multipathd show config | grep -C 10 Nimble
		device {
		vendor "Nimble"
		product "Server"
		path_grouping_policy "group_by_prio"
		path_selector "round-robin 0"
		path_checker "tur"    <---------------------------------
		features "1 queue_if_no_path"
		hardware_handler "1 alua"
		prio "alua"
		failback immediate
		dev_loss_tmo "infinity"
	}


Test result:  added TUR path checker to default hardware table for Nimble devices

Comment 8 Lin Li 2017-11-14 13:57:28 UTC
Hello shivamerla1,
Because we don't have Nimble storage, we can only check default configuration.
Could you help check if it works normally for you?
Thanks in advance.

Comment 11 errata-xmlrpc 2018-01-25 11:39:30 UTC
Since the problem described in this bug report should be
resolved in a recent advisory, it has been closed with a
resolution of ERRATA.

For information on the advisory, and where to find the updated
files, follow the link below.

If the solution does not work for you, open a new bug report.

https://access.redhat.com/errata/RHEA-2018:0142

Comment 14 Red Hat Bugzilla 2023-09-15 00:05:04 UTC
The needinfo request[s] on this closed bug have been removed as they have been unresolved for 500 days