Bug 2166467
| Summary: | multipath devices that need both a table reload and a rename only get renamed on multipathd startup | |||
|---|---|---|---|---|
| Product: | Red Hat Enterprise Linux 9 | Reporter: | Ben Marzinski <bmarzins> | |
| Component: | device-mapper-multipath | Assignee: | Ben Marzinski <bmarzins> | |
| Status: | CLOSED ERRATA | QA Contact: | Lin Li <lilin> | |
| Severity: | medium | Docs Contact: | ||
| Priority: | high | |||
| Version: | 9.0 | CC: | agk, bmarzins, heinzm, lilin, msnitzer, prajnoha, zkabelac | |
| Target Milestone: | rc | Keywords: | Triaged | |
| Target Release: | --- | |||
| Hardware: | Unspecified | |||
| OS: | Unspecified | |||
| Whiteboard: | ||||
| Fixed In Version: | device-mapper-multipath-0.8.7-19.el9 | Doc Type: | Bug Fix | |
| Doc Text: |
Cause: When multipath needed to rename a device, it wasn't checking if it also needed to change the configuration of the device.
Consequence: If multipath needed to rename and reconfigure a device, it would only rename the device.
Fix: multipath now checks for other actions it needs to perform in addition to renaming a device, and does those as well.
Result: If a multipath device needs renaming and reconfiguring, multipath will now do both.
|
Story Points: | --- | |
| Clone Of: | ||||
| : | 2166468 (view as bug list) | Environment: | ||
| Last Closed: | 2023-05-09 08:14:07 UTC | Type: | Bug | |
| 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: | ||||
| Bug Blocks: | 2166468 | |||
Verified on device-mapper-multipath-0.8.7-20.el9
[root@storageqe-25 ~]# rpm -qa | grep multipath
device-mapper-multipath-libs-0.8.7-20.el9.x86_64
device-mapper-multipath-0.8.7-20.el9.x86_64
1. create a multipath device with the following options in multipath.conf
user_friendly_names yes
path_selector "service-time 0"
2. Stop multipathd
3. Edit multipath.conf, and change the values to
user_friendly_names no
path_selector "round-robin 0"
This will make the multipath device need both a rename (from the user friendly name
to the WWID name) and a reload (from the service-time path selector to the round-robin path selector)
4. Start multipathd
5.[root@storageqe-25 ~]# multipath -ll
360a98000324669436c2b45666c567858 dm-3 NETAPP,LUN
size=2.0G features='3 queue_if_no_path pg_init_retries 50' hwhandler='1 alua' wp=rw
|-+- policy='round-robin 0' prio=50 status=active
| |- 7:0:1:0 sdf 8:80 active ready running
| `- 8:0:1:0 sdn 8:208 active ready running
`-+- policy='round-robin 0' prio=10 status=enabled
|- 7:0:0:0 sdb 8:16 active ready running
`- 8:0:0:0 sdj 8:144 active ready running
360a98000324669436c2b45666c56785a dm-4 NETAPP,LUN
size=2.0G features='3 queue_if_no_path pg_init_retries 50' hwhandler='1 alua' wp=rw
|-+- policy='round-robin 0' prio=50 status=active
| |- 7:0:1:1 sdg 8:96 active ready running
| `- 8:0:1:1 sdo 8:224 active ready running
`-+- policy='round-robin 0' prio=10 status=enabled
|- 7:0:0:1 sdc 8:32 active ready running
`- 8:0:0:1 sdk 8:160 active ready running
360a98000324669436c2b45666c567861 dm-5 NETAPP,LUN
size=2.0G features='3 queue_if_no_path pg_init_retries 50' hwhandler='1 alua' wp=rw
|-+- policy='round-robin 0' prio=50 status=active
| |- 7:0:1:2 sdh 8:112 active ready running
| `- 8:0:1:2 sdp 8:240 active ready running
`-+- policy='round-robin 0' prio=10 status=enabled
|- 7:0:0:2 sdd 8:48 active ready running
`- 8:0:0:2 sdl 8:176 active ready running
360a98000324669436c2b45666c567863 dm-6 NETAPP,LUN
size=2.0G features='3 queue_if_no_path pg_init_retries 50' hwhandler='1 alua' wp=rw
|-+- policy='round-robin 0' prio=50 status=active
| |- 7:0:1:3 sdi 8:128 active ready running
| `- 8:0:1:3 sdq 65:0 active ready running
`-+- policy='round-robin 0' prio=10 status=enabled
|- 7:0:0:3 sde 8:64 active ready running
`- 8:0:0:3 sdm 8:192 active ready running
Test result: Both the device name is changed to the WWID name and the path selector is changed to "round-robin"
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 (Moderate: device-mapper-multipath security and bug fix update), 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/RHSA-2023:2459 |
Description of problem: If a multipath device needs to have its table reloaded and get renamed, when multipathd starts up, it will only do the rename. To do the table reload, you need to run. # service multipathd reload after multipathd has started up. This does the reload, since the rename has already happened. This sort of error is most likely to be seen when the version of /etc/multipath.conf in the initramfs doesn't match the version in the regular filesystem. Version-Release number of selected component (if applicable): All versions How reproducible: Always Steps to Reproduce: 1. create a multipath device with the following options in multipath.conf user_friendly_names yes path_selector "service-time 0" 2. Stop multipathd 3. Edit multipath.conf, and change the values to user_friendly_names no path_selector "round-robin 0" This will make the multipath device need both a rename (from the user friendly name to the WWID name) and a reload (from the service-time path selector to the round-robin path selector) 4. Start multipathd Actual results: The device will be renamed to use a WWID name, but the path selector will still be "service-time 0". Expected results: Both the device name will be changed to the WWID name and the path selector will be changed to "round-robin"