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DCA RAID Battery Next Learn time not in sync across the cluster

Problem

When the RAID Battery recharge is sync'd across all the servers in the cluster and once the initial recharge is completed after the setup of the sync, the Next Learn Time across all the servers is not showing in sync as follows:

[gpadmin@mdw ~]$ gpssh -f hostfile "omreport storage battery | grep -i next" 
[sdw4] Next Learn Time : 76 days 4 hours 
[sdw5] Next Learn Time : 77 days 6 hours 
[sdw6] Next Learn Time : 78 days 15 hours 
[sdw7] Next Learn Time : 77 days 4 hours 
[sdw1] Next Learn Time : 78 days 14 hours 
[sdw2] Next Learn Time : 77 days 16 hours 
[sdw3] Next Learn Time : 77 days 0 hours 
[smdw] Next Learn Time : 74 days 9 hours 
[sdw8] Next Learn Time : 78 days 14 hours 
[ mdw] Next Learn Time : 77 days 20 hours 
[gpadmin@mdw ~]$

 Solution

The difference in the Next Learn Time is due to the RAID Controller Clock and the OS clock not in sync. When you check the LSI logs you will be give the correct time that the Next Lean Time will happen.

 

07/12/15  3:50:53: Learn completed successfully 
07/12/15  3:50:53: Next Learn will start on 10 10 2015 

07/12/15  3:50:53:       *** BATTERY FEATURE PROPERTIES ***
07/12/15  3:50:53:  _________________________________________________

07/12/15  3:50:53:       Auto Learn Period     : 90  days
07/12/15  3:50:53:       Next Learn Time       : 497764253
07/12/15  3:50:53:       Battery ID            : 3f6507bc
07/12/15  3:50:53:       Delayed Learn Interval: 0  hours from scheduled time
07/12/15  3:50:53:       Next Learn scheduled on: 10 10 2015   3:50:53
07/12/15  3:50:53:  _________________________________________________

--from sdw2

07/12/15  4:18:03: Next Learn will start on 10 10 2015 

07/12/15  4:18:03:       *** BATTERY FEATURE PROPERTIES ***
07/12/15  4:18:03:  _________________________________________________

07/12/15  4:18:03:       Auto Learn Period     : 90  days
07/12/15  4:18:03:       Next Learn Time       : 497765883
07/12/15  4:18:03:       Battery ID            : 4255077a
07/12/15  4:18:03:       Delayed Learn Interval: 0  hours from scheduled time
07/12/15  4:18:03:       Next Learn scheduled on: 10 10 2015   4:18: 3
07/12/15  4:18:03:  _________________________________________________

--from sdw6

07/12/15  4:06:30: Next Learn will start on 10 10 2015 

07/12/15  4:06:30:       *** BATTERY FEATURE PROPERTIES ***
07/12/15  4:06:30:  _________________________________________________

07/12/15  4:06:30:       Auto Learn Period     : 90  days
07/12/15  4:06:30:       Next Learn Time       : 497765190
07/12/15  4:06:30:       Battery ID            : 4169053f
07/12/15  4:06:30:       Delayed Learn Interval: 0  hours from scheduled time
07/12/15  4:06:30:       Next Learn scheduled on: 10 10 2015   4: 6:30
07/12/15  4:06:30:  _________________________________________________

--from sdw1

07/12/15  3:45:51: Next Learn will start on 10 10 2015 

07/12/15  3:45:51:       *** BATTERY FEATURE PROPERTIES ***
07/12/15  3:45:51:  _________________________________________________

07/12/15  3:45:51:       Auto Learn Period     : 90  days
07/12/15  3:45:51:       Next Learn Time       : 497763951
07/12/15  3:45:51:       Battery ID            : 404b125c
07/12/15  3:45:51:       Delayed Learn Interval: 0  hours from scheduled time
07/12/15  3:45:51:       Next Learn scheduled on: 10 10 2015   3:45:51
07/12/15  3:45:51:  _________________________________________________

 

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