dm-multipath incorrectly groups the sub paths from PURE FlashArray storage
Issue
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After a firmware upgrade of PURE FlashArray storage array, dm-multipath changed the path grouping from:
36123456789123456789123abcdefghij dm-29 PURE,FlashArray size=2.0T features='0' hwhandler='1 alua' wp=rw `-+- policy='service-time 0' prio=50 status=active |- 8:0:0:19 sdu 65:64 active undef running |- 20:0:0:19 sdbi 67:192 active undef running |- 8:0:1:19 sdan 66:112 active undef running `- 20:0:2:19 sdcc 69:0 active undef runningto
36123456789123456789123abcdefghij dm-29 PURE,FlashArray size=2.0T features='0' hwhandler='1 alua' wp=rw |-+- policy='service-time 0' prio=50 status=active | |- 8:0:0:19 sdu 65:64 active undef running | `- 20:0:0:19 sdbi 67:192 active undef running `-+- policy='service-time 0' prio=10 status=enabled |- 8:0:1:19 sdan 66:112 active undef running `- 20:0:2:19 sdcc 69:0 active undef runningAs seen above, 2 paths got moved from active to enabled state.
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This issue was observed only on systems having RHEL 8, the same issue was not seen on servers with RHEL 7.
Is there any difference in RHEL 8 based device-mapper-multipath package which could cause this issue?
Environment
- Red Hat Enterprise Linux 8
- device-mapper-multipath
- PURE FlashArray Storage devices
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