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Bug 2107162 - lvm ignores multipath blacklist configuration
Summary: lvm ignores multipath blacklist configuration
Keywords:
Status: CLOSED ERRATA
Alias: None
Product: Red Hat Enterprise Linux 9
Classification: Red Hat
Component: lvm2
Version: 9.1
Hardware: Unspecified
OS: Unspecified
high
high
Target Milestone: rc
: ---
Assignee: LVM and device-mapper development team
QA Contact: cluster-qe@redhat.com
URL:
Whiteboard:
Depends On: 2076262
Blocks: 2074765 2100133
TreeView+ depends on / blocked
 
Reported: 2022-07-14 13:16 UTC by Marian Csontos
Modified: 2022-11-15 13:17 UTC (History)
28 users (show)

Fixed In Version: lvm2-2.03.16-2.el9
Doc Type: If docs needed, set a value
Doc Text:
Clone Of: 2076262
Environment:
Last Closed: 2022-11-15 11:20:43 UTC
Type: Bug
Target Upstream Version:
Embargoed:
pm-rhel: mirror+

Attachments (Terms of Use)


Links
System ID Private Priority Status Summary Last Updated
Red Hat Issue Tracker RHELPLAN-127714 0 None None None 2022-07-14 13:31:05 UTC
Red Hat Product Errata RHBA-2022:8358 0 None None None 2022-11-15 11:21:24 UTC

Comment 6 Corey Marthaler 2022-07-20 21:25:27 UTC 
This behavior is different than what the 8.7 fix showed ( https://bugzilla.redhat.com/show_bug.cgi?id=2076262#c27 ), but it's still not what was listed as expected in https://bugzilla.redhat.com/show_bug.cgi?id=2076262#c18.


[root@hayes-03 tmp]#  pvcreate /dev/sdf
  Physical volume "/dev/sdf" successfully created.
[root@hayes-03 tmp]# pvs
  PV         VG Fmt  Attr PSize  PFree 
  /dev/sdf      lvm2 ---  <1.82t <1.82t

[root@hayes-03 tmp]# multipath /dev/sdf
93451.207798 | mpatha: addmap [0 3905945600 multipath 0 0 1 1 service-time 0 1 1 8:80 1]
create: mpatha (36d09466083d8e100233c180321c0e570) undef DELL,PERC H330 Adp
size=1.8T features='0' hwhandler='0' wp=undef
`-+- policy='service-time 0' prio=1 status=undef
  `- 0:2:5:0  sdf 8:80  undef ready running

# Unlike in 8.7, pvs here does seem to realize there's a pv on /dev/mapper/mpatha, are we actually supposed to do the 'lvmdevices --update'?
[root@hayes-03 tmp]# pvs
  WARNING: devices file is missing /dev/mapper/mpatha (253:0) using multipath component /dev/sdf.
  See lvmdevices --update for devices file update.

[root@hayes-03 tmp]# grep sdf /etc/lvm/devices/system.devices 
IDTYPE=sys_wwid IDNAME=naa.6d09466083d8e100233c180321c0e570 DEVNAME=/dev/sdf PVID=UTQiPfsSGvGMtz025sQtdo6FcwPTqBxW

[root@hayes-03 tmp]# cat /etc/multipath/wwids
# Multipath wwids, Version : 1.0
# NOTE: This file is automatically maintained by multipath and multipathd.
# You should not need to edit this file in normal circumstances.
#
# Valid WWIDs:
/36d09466083d8e100233c180321c0e570/

# add to /etc/multipath.conf
blacklist {
        wwid "36d09466083d8e100233c180321c0e570"
}

[root@hayes-03 tmp]# systemctl restart multipathd.service
[root@hayes-03 tmp]# multipath -F
[root@hayes-03 tmp]# multipath -v2
[root@hayes-03 tmp]# multipath -l

# pvs is back to see the device on /dev/sdf, not /dev/mapper/mpatha
[root@hayes-03 tmp]# pvs
  PV         VG Fmt  Attr PSize  PFree 
  /dev/sdf      lvm2 ---  <1.82t <1.82t
Comment 7 Corey Marthaler 2022-07-26 14:30:54 UTC 
Marking Verified:Tested in the latest rpms.

kernel-5.14.0-130.el9    BUILT: Fri Jul 15 07:31:56 AM CDT 2022
lvm2-2.03.16-2.el9    BUILT: Thu Jul 14 11:45:18 AM CDT 2022
lvm2-libs-2.03.16-2.el9    BUILT: Thu Jul 14 11:45:18 AM CDT 2022



[root@hayes-03 ~]# grep use_devicesfile /etc/lvm/lvm.conf 
        # Configuration option devices/use_devicesfile.
        # use_devicesfile = 0
        use_devicesfile = 0     # edited by QA Thu Jul 21 13:40:20 2022
[root@hayes-03 ~]# pvscan
  No matching physical volumes found
[root@hayes-03 ~]# pvcreate /dev/sdn
  Physical volume "/dev/sdn" successfully created.
[root@hayes-03 ~]# pvs
  PV         VG Fmt  Attr PSize  PFree 
  /dev/sdn      lvm2 ---  <1.82t <1.82t
[root@hayes-03 ~]# multipath /dev/sdn
487683.290851 | mpathc: addmap [0 3905945600 multipath 0 0 1 1 service-time 0 1 1 8:208 1]
create: mpathc (36d09466083d8e100233c183624c8911b) undef DELL,PERC H330 Adp
size=1.8T features='0' hwhandler='0' wp=undef
`-+- policy='service-time 0' prio=1 status=undef
  `- 0:2:13:0 sdn 8:208 undef ready running
[root@hayes-03 ~]# pvs
  PV                 VG Fmt  Attr PSize  PFree 
  /dev/mapper/mpathc    lvm2 ---  <1.82t <1.82t
[root@hayes-03 ~]# cat /etc/multipath/wwids
# Multipath wwids, Version : 1.0
# NOTE: This file is automatically maintained by multipath and multipathd.
# You should not need to edit this file in normal circumstances.
#
# Valid WWIDs:
/36d09466083d8e100233c183624c8911b/

/etc/multipath.conf
blacklist {
        wwid "36d09466083d8e100233c183624c8911b"
}

[root@hayes-03 ~]# multipath -F
[root@hayes-03 ~]# multipath -v2
[root@hayes-03 ~]# multipath -l
[root@hayes-03 ~]# pvs
  PV         VG Fmt  Attr PSize  PFree 
  /dev/sdn      lvm2 ---  <1.82t <1.82t


/etc/multipath.conf
blacklist_exceptions {
        wwid "36d09466083d8e100233c183624c8911b"
}
blacklist {
        wwid "36d09466083d8e100233c183624c8911b"
}

[root@hayes-03 ~]# multipath -F
[root@hayes-03 ~]# multipath -v2
488607.328920 | mpathc: addmap [0 3905945600 multipath 0 0 1 1 service-time 0 1 1 8:208 1]
create: mpathc (36d09466083d8e100233c183624c8911b) undef DELL,PERC H330 Adp
size=1.8T features='0' hwhandler='0' wp=undef
`-+- policy='service-time 0' prio=1 status=undef
  `- 0:2:13:0 sdn 8:208 undef ready running
[root@hayes-03 ~]# multipath -l
mpathc (36d09466083d8e100233c183624c8911b) dm-0 DELL,PERC H330 Adp
size=1.8T features='0' hwhandler='0' wp=rw
`-+- policy='service-time 0' prio=0 status=active
  `- 0:2:13:0 sdn 8:208 active undef running
[root@hayes-03 ~]#  pvs
  PV                 VG Fmt  Attr PSize  PFree 
  /dev/mapper/mpathc    lvm2 ---  <1.82t <1.82t
Comment 11 errata-xmlrpc 2022-11-15 11:20:43 UTC 
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 (lvm2 bug fix and enhancement 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/RHBA-2022:8358
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