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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.
Please let us know how we(hpe) can help to consider this for z-stream. Without this fix, our inbuilt device table is useless and customers still have to perform manual configuration. Also, are you planning to post this patch upstream with other patches or do you want me to create one? Thanks.
Hi Ben,
Can you please provide the timeline of when this will be updated? Also, are you planning to post this patch upstream or do you want me to post one. Please let me know. Thanks.
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.
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-2018:0884
Comment 20Red Hat Bugzilla
2023-09-15 00:03:29 UTC
The needinfo request[s] on this closed bug have been removed as they have been unresolved for 500 days
Description of problem: path_checker option is missing in default hardware table for Nimble and by default "directio" is selected. Nimble is a active/standby array and directio commands fails on stand-by paths. Please add path_checker "tur" to Nimble device table. current settings:(missing path_checker) { 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" } Version-Release number of selected component (if applicable): device-mapper-multipath-0.4.9-111.el7.x86_64 device-mapper-multipath-libs-0.4.9-111.el7.x86_64 How reproducible: consistent Steps to Reproduce: 1. Install or Upgrade to RHEL 7.4 2. Run multipath -ll 3. All stand-by paths appear as failed/faulty devices Actual results: Paths appear as failed/faulty instead of ghost. Expected results: stand-by paths should appear as active/ghost instead of failed/faulty Additional info: [root@rtp-iron-ops06 ~]# multipath -ll mpatha (29b67c5b1833be9dd6c9ce90038a5a0c6) dm-0 Nimble ,Server size=150G features='1 queue_if_no_path' hwhandler='1 alua' wp=rw `-+- policy='round-robin 0' prio=50 status=active |- 7:0:2:0 sdg 8:96 failed faulty running |- 8:0:1:0 sdb 8:16 failed faulty running |- 7:0:3:0 sdh 8:112 failed faulty running |- 8:0:2:0 sdc 8:32 failed faulty running |- 7:0:0:0 sde 8:64 active ready running |- 8:0:0:0 sda 8:0 active ready running |- 7:0:1:0 sdf 8:80 active ready running `- 8:0:3:0 sdd 8:48 active ready running Aug 17 14:16:48 rtp-iron-ops06 multipathd: mpatha: sdc - directio checker reports path is down Aug 17 14:16:48 rtp-iron-ops06 kernel: sd 7:0:2:0: [sdg] tag#0 FAILED Result: hostbyte=DID_OK driverbyte=DRIVER_SENSE Aug 17 14:16:48 rtp-iron-ops06 kernel: sd 7:0:2:0: [sdg] tag#0 Sense Key : Not Ready [current] Aug 17 14:16:48 rtp-iron-ops06 kernel: sd 7:0:2:0: [sdg] tag#0 Add. Sense: Logical unit not accessible, target port in standby state Aug 17 14:16:48 rtp-iron-ops06 kernel: sd 7:0:2:0: [sdg] tag#0 CDB: Read(10) 28 00 00 00 00 00 00 00 08 00 Aug 17 14:16:48 rtp-iron-ops06 kernel: blk_update_request: I/O error, dev sdg, sector 0 Aug 17 14:16:48 rtp-iron-ops06 kernel: sd 7:0:3:0: [sdh] tag#1 FAILED Result: hostbyte=DID_OK driverbyte=DRIVER_SENSE Aug 17 14:16:48 rtp-iron-ops06 kernel: sd 7:0:3:0: [sdh] tag#1 Sense Key : Not Ready [current] Aug 17 14:16:48 rtp-iron-ops06 kernel: sd 7:0:3:0: [sdh] tag#1 Add. Sense: Logical unit not accessible, target port in standby state Aug 17 14:16:48 rtp-iron-ops06 kernel: sd 7:0:3:0: [sdh] tag#1 CDB: Read(10) 28 00 00 00 00 00 00 00 08 00 Aug 17 14:16:48 rtp-iron-ops06 kernel: blk_update_request: I/O error, dev sdh, sector 0 Aug 17 14:16:49 rtp-iron-ops06 multipathd: mpatha: sdg - directio checker reports path is down Aug 17 14:16:49 rtp-iron-ops06 multipathd: mpatha: sdh - directio checker reports path is down Aug 17 14:16:49 rtp-iron-ops06 kernel: sd 8:0:1:0: [sdb] tag#0 FAILED Result: hostbyte=DID_OK driverbyte=DRIVER_SENSE Aug 17 14:16:49 rtp-iron-ops06 kernel: sd 8:0:1:0: [sdb] tag#0 Sense Key : Not Ready [current] Aug 17 14:16:49 rtp-iron-ops06 kernel: sd 8:0:1:0: [sdb] tag#0 Add. Sense: Logical unit not accessible, target port in standby state Aug 17 14:16:49 rtp-iron-ops06 kernel: sd 8:0:1:0: [sdb] tag#0 CDB: Read(10) 28 00 00 00 00 00 00 00 08 00