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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.
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"
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"