Flashgrid: Strict local was NOT disabled due to dependency errors!

July 28, 2022 Leave a comment

Problem:

# flashgrid-cluster strict-read-local-disable
~~~~~~~~~~~~~~~~
Unable to revert 'ora.orcl.db': saved data doesn't match current dependencies!

Expected 'hard(fg.OGG.DisksReady, fg.OCR.DisksReady, fg.MGMT.DisksReady, fg.GRID.DisksReady, fg.DATA2.DisksReady, fg.DATA1.DisksReady, fg.ARCH.DisksReady, global:uniform:ora.DATA2.dg, uniform:global:ora.GRID.dg, uniform:global:ora.OCR.dg, uniform:global:ora.MGMT.dg, uniform:global:ora.OGG.dg, global:uniform:ora.DATA1.dg) pullup(fg.OGG.DisksReady, fg.OCR.DisksReady, fg.MGMT.DisksReady, fg.GRID.DisksReady, fg.DATA2.DisksReady, fg.DATA1.DisksReady, fg.ARCH.DisksReady, global:ora.GRID.dg, global:ora.OCR.dg, global:ora.MGMT.dg, global:ora.OGG.dg, global:ora.DATA2.dg, global:ora.DATA1.dg) weak(type:ora.listener.type, global:type:ora.scan_listener.type, uniform:ora.ons, global:ora.gns, global:uniform:ora.ARCH.dg)', found 'hard(fg.OGG.DisksReady, fg.OCR.DisksReady, fg.MGMT.DisksReady, fg.GRID.DisksReady, fg.DATA2.DisksReady, fg.DATA1.DisksReady, fg.ARCH.DisksReady, global:uniform:ora.DATA2.dg, uniform:global:ora.GRID.dg, uniform:global:ora.OCR.dg, uniform:global:ora.MGMT.dg, uniform:global:ora.OGG.dg, global:uniform:ora.ARCH.dg, global:uniform:ora.DATA1.dg) pullup(fg.OGG.DisksReady, fg.OCR.DisksReady, fg.MGMT.DisksReady, fg.GRID.DisksReady, fg.DATA2.DisksReady, fg.DATA1.DisksReady, fg.ARCH.DisksReady, global:ora.GRID.dg, global:ora.OCR.dg, global:ora.MGMT.dg, global:ora.OGG.dg, global:ora.DATA2.dg, global:ora.ARCH.dg, global:ora.DATA1.dg) weak(type:ora.listener.type, global:type:ora.scan_listener.type, uniform:ora.ons, global:ora.gns)'

Strict local was NOT disabled due to dependency errors!

The dependency attribute for the database resource is different than expected.

Solution:

Copy text after Expected until found sections, and modify dependencies manually. This process does not require any downtime and is safe to run. Please note, that your dependencies should be different, so instead of copying the text below use the output from the previous command to modify accordingly:

# crsctl modify resource ora.orcl.db -attr "START_DEPENDENCIES='hard(fg.OGG.DisksReady, fg.OCR.DisksReady, fg.MGMT.DisksReady, fg.GRID.DisksReady, fg.DATA2.DisksReady, fg.DATA1.DisksReady, fg.ARCH.DisksReady, global:uniform:ora.DATA2.dg, uniform:global:ora.GRID.dg, uniform:global:ora.OCR.dg, uniform:global:ora.MGMT.dg, uniform:global:ora.OGG.dg, global:uniform:ora.DATA1.dg) pullup(fg.OGG.DisksReady, fg.OCR.DisksReady, fg.MGMT.DisksReady, fg.GRID.DisksReady, fg.DATA2.DisksReady, fg.DATA1.DisksReady, fg.ARCH.DisksReady, global:ora.GRID.dg, global:ora.OCR.dg, global:ora.MGMT.dg, global:ora.OGG.dg, global:ora.DATA2.dg, global:ora.DATA1.dg) weak(type:ora.listener.type, global:type:ora.scan_listener.type, uniform:ora.ons, global:ora.gns, global:uniform:ora.ARCH.dg)'" -unsupported

Disable read local:

# flashgrid-cluster strict-read-local-disable

I would not recommend disabling it, to reenable please run # flashgrid-cluster strict-read-local-enable

The reason we were disabling it was because of testing and we’ve found that the resource had a dependency error that was causing problems. So in case you encounter the same, you know how to solve it.

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After GI upgrade flashgrid-cluster shows wrong diskgroup status

January 5, 2022 Leave a comment

Problem:

I have upgraded Oracle GI from 12c to 19c. ASM is up and diskgroups are mounted, but flashgrid-cluster still shows that diskgroups are not mounted on any node:

[root@rac1 ~]# flashgrid-cluster
FlashGrid 21.8.67.66809 #707efdc10a212421dbd3737ef8e693ae14c15964
License: Active, Marketplace
Licensee: Flashgrid Inc.
Support plan: 24x7
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
FlashGrid running: OK
Clocks check: OK
Configuration check: OK
Network check: OK

Querying nodes: rac1, rac2, racq ...

Cluster Name: mariGIMR
Cluster status: Warning
-------------------------------------------------------------
Node  Status   ASM_Node  Storage_Node  Quorum_Node  Failgroup
-------------------------------------------------------------
rac1  Warning  Yes       Yes           No           RAC1
rac2  Warning  Yes       Yes           No           RAC2
racq  Warning  No        No            Yes          RACQ
-------------------------------------------------------------
-----------------------------------------------------------------------------
GroupName  Status  Mounted  Type  TotalMiB  FreeMiB  OfflineDisks  LostDisks  Resync  ReadLocal  Vote
-----------------------------------------------------------------------------
GRID     Warning  No  N/A   N/A   N/A    N/A    N/A  N/A     N/A        N/A
-----------------------------------------------------------------------------

Solution:

After upgrade, you should restart flashgrid_asm service on all nodes, it does not require downtime:

[root@rac1 ~]# systemctl restart flashgrid_asm
[root@rac2 ~]# systemctl restart flashgrid_asm

Check the status again:

...
-----------------------------------------------------------------------------
GroupName  Status  Mounted   Type    TotalMiB  FreeMiB  OfflineDisks  LostDisks  Resync  ReadLocal  Vote
-----------------------------------------------------------------------------
GRID    Good    AllNodes  NORMAL  204800    154336   0   0  No Enabled    3/3
-----------------------------------------------------------------------------

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Flashgrid CHM and Basic Troubleshooting Part 1

July 8, 2021 Leave a comment

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