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IB switch ILOM timezone setting does not match the OS symlink /conf/localtime (Doc ID 2341655.1)

Last updated on OCTOBER 18, 2019

Applies to:

Sun Datacenter InfiniBand Switch 36 - Version All Versions and later
Sun Network QDR InfiniBand Gateway Switch - Version All Versions and later
Information in this document applies to any platform.


In the NM2 IB switch, /conf/localtime is a symlink to the actual timezone file:



ILOM TZ set to EST (EST5EDT), symlink to EST5EDT

[root@lab-switch ~]# date
Wed Dec 20 12:32:56 EST 2017
[root@lab-switch ~]# ls -l /conf/localtime
lrwxrwxrwx 1 root root 27 2017-12-13 19:56 /conf/localtime -> /usr/share/zoneinfo/EST5EDT
[root@lab-switch ~]# spsh

-> ls /SP/clock

datetime = Wed Dec 20 12:33:19 2017
timezone = EST (EST5EDT)
uptime = 11 days, 21:50:14
usentpserver = disabled


In some cases, this expected association between the TZ set in the ILOM and the symbolic link to TZ file in the OS is broken (dissociated).



ILOM TZ set to EST (America/New_York), symlink to UTC

[root@prod-switch ~]# date
Mon Dec 18 15:46:15 EST 2017
[root@prod-switch ~]# ls -al /conf/localtime
lrwxrwxrwx 1 root root 23 2017-03-13 04:59 /conf/localtime -> /usr/share/zoneinfo/UTC
[root@prod-switch ~]# spsh

-> ls /SP/clock

datetime = Mon Dec 18 15:46:36 2017
timezone = EST (America/New_York)
uptime = 74 days, 19:58:30
usentpserver = enabled


Impact: Some scripts (e.g., Exachk) would report inconsistency between the md5sum values returned from affected vs. unaffected switches



# md5sum /usr/share/zoneinfo/America/New_York
e4ca381035a34b7a852184cc0dd89baa /usr/share/zoneinfo/America/New_York

# md5sum /usr/share/zoneinfo/UTC
c79354b8dbee09e62bbc3fb544853283 /usr/share/zoneinfo/UTC

(all switches ILOM TZ set to EST (America/New_York))

[root@node_adm ~]# dcli -g ibswitch_group -l root md5sum /conf/localtime
prod-switch: e4ca381035a34b7a852184cc0dd89baa /conf/localtime
prod-switch1: c79354b8dbee09e62bbc3fb544853283 /conf/localtime
prod-switch2: c79354b8dbee09e62bbc3fb544853283 /conf/localtime
prod-switch3: c79354b8dbee09e62bbc3fb544853283 /conf/localtime
prod-switch4: c79354b8dbee09e62bbc3fb544853283 /conf/localtime
prod-switch01: c79354b8dbee09e62bbc3fb544853283 /conf/localtime
prod-switchl01: c79354b8dbee09e62bbc3fb544853283 /conf/localtime
prod-switchl02: c79354b8dbee09e62bbc3fb544853283 /conf/localtime


Cluster Wide

FAIL Cluster Wide Check Localtime configuration does not match on all Infiniband switches Cluster Wide






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