Bug 1306887 - [Nimble Storage] Add APTPL flag to fence_mpath and make multipath-tools honor APTPL bit on registrations
[Nimble Storage] Add APTPL flag to fence_mpath and make multipath-tools honor...
Product: Red Hat Enterprise Linux 6
Classification: Red Hat
Component: device-mapper-multipath (Show other bugs)
x86_64 Linux
unspecified Severity urgent
: rc
: ---
Assigned To: Ben Marzinski
Lin Li
Depends On:
Blocks: 1498724
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Reported: 2016-02-11 20:40 EST by shivamerla1
Modified: 2017-10-05 00:47 EDT (History)
13 users (show)

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Clone Of:
: 1498724 (view as bug list)
Last Closed: 2017-10-05 00:47:14 EDT
Type: Bug
Regression: ---
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oVirt Team: ---
RHEL 7.3 requirements from Atomic Host:
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Description shivamerla1 2016-02-11 20:40:15 EST
Description of problem:
Currently fence-mpath agent doesn't support "Activate Persist Through Power Loss" flag. Due to this SCSI-3 persistent registrations/reservations are not persistent across array power loss.

Also, multipath-tools currently not honoring APTPL bit set by mpathpersist. If the path goes to faulty and running again, it will register_and_ignore without APTPL flag.

Hence the supported needs to be added to both multipath-tools and fence-mpath agent.

Version-Release number of selected component (if applicable):
[root@~]# uname -r

[root@~]# rpm -qa | grep multipath

How reproducible:

Steps to Reproduce:
1. Register key using APTPL param to mpathpersist/fence-mpath agent.
2. Reboot array controller.
3. SCSI-3 Reservation/Registrations are not persisted.

Actual results:
SCSI-3 Reservation/Registrations are not persisted after array power loss.

Expected results:
Should have persisted with APTPL bit.

Additional info:
Comment 2 Lin Li 2016-02-16 01:27:25 EST
Hello shivamerla1,
Because there is no Nimble Storage in our lab, could you help provide test result once the package is available?
Comment 3 shivamerla1 2016-02-16 01:58:25 EST
Sure, we can help testing the fix.
Comment 5 Ben Marzinski 2017-10-05 00:47:14 EDT
This doesn't work in RHEL7, and it makes much more sense to fix it there. I've cloned the bug for RHEL7, and I'm closing this one.

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