Partial Giveback Cluster Mode NetApp How To Resolve.?
As we know most of the NetApp Cluster Mode operation are Non-Disruptive like moving volume, migrating LIF’s so an. Manual takeover, giveback will also non-disruptive task. We would like to execute an manual takeover and giveback to verify Cluster switch over and release old snapshots which are marked as busy with NDMP backup. In this article we are going to see how to resolve if you struck in in issue Partial Giveback Cluster Mode NetApp.
Partial Giveback Cluster Mode NetApp Resolution
Before executing manual takeover/giveback you have to know few word’s
- SFO = Storage Failover
- CFO = Cluster Failover
- RDB = Replicated Database
Collect cluster status information before executing takeover
ARK-CLU::> storage failover show-giveback Partner Node Aggregate Giveback Status -------------- ----------------- --------------------------------------------- ARK-CLU01 No aggregates to give back ARK-CLU02 No aggregates to give back 2 entries were displayed. ARK-CLU::> storage failover show-takeover Node Node Status Aggregate Takeover Status ---------- --------------------- -------------- ------------------------------- ARK-CLU01 Takeover not attempted. - - ARK-CLU02 Takeover not attempted. - - 2 entries were displayed. ARK-CLU::> storage aggregate show -fields ha-policy aggregate ha-policy ------------------ --------- Aggr1_SAS_ARK_CLU01 sfo Aggr1_SATA_ARK_CLU02 sfo Aggr2_SAS_ARK_CLU01 sfo root_ARK_CLU01 cfo root_ARK_CLU02 cfo 5 entries were displayed. ARK-CLU::> cf status Takeover Node Partner Possible State Description -------------- -------------- -------- ------------------------------------- ARK-CLU01 ARK-CLU02 true Connected to ARK-CLU02 ARK-CLU02 ARK-CLU01 true Connected to ARK-CLU01 2 entries were displayed.
if you can see aggregate information on cluster failover (CFO) and storage failover (SFO). If you do manual cluster failover then CFO aggregates will migrate from node to takeover node.
Manual Cluster Failover
ARK-CLU::> storage failover takeover -ofnode ARK-CLU02 -option normal
Warning: A takeover will be initiated. Once the partner node reboots, a giveback will be automatically initiated. Do you want to continue? {y|n}: y
Warning: Initiating a takeover while node cannot see some of the partner disks is not recommended. Do you want to continue? {y|n}: y
Now cluster Node01 will start takeover of Node02, monitor the progress using below command
ARK-CLU::> storage failover show-takeover
Node takeover is successful. Than wait for node to reboot and ready for giveback
Here i have observed an giveback is not successful
ARKIT-CLU::> storage failover giveback -ofnode ARKIT-CLU01
Info: Run the storage failover show-giveback command to check giveback status.
ARKIT-CLU::> storage failover show
Takeover
Node Partner Possible State Description
-------------- -------------- -------- -------------------------------------
ARKIT-CLU01 ARKIT-CLU02 true Connected to ARKIT-CLU02. Waiting
for cluster applications to come
online on the local node.
ARKIT-CLU02 ARKIT-CLU01 true Connected to ARKIT-CLU01, Partial giveback
2 entries were displayed.
ARKIT-CLU::> storage failover show
Takeover
Node Partner Possible State Description
-------------- -------------- -------- -------------------------------------
ARKIT-CLU01 ARKIT-CLU02 true Connected to ARKIT-CLU02
ARKIT-CLU02 ARKIT-CLU01 true Connected to ARKIT-CLU01, Giveback
of one or more SFO aggregates failed
2 entries were displayed.
Like shown above you can see error “Giveback of one more SFO aggregates failed” Partial giveback, which because Node1 is not ready to giveback resource no votes.
initiate takeover back then re-initiate giveback forcefully
ARKIT-CLU::> storage failover giveback -ofnode ARK-CLU02 -override-vetoes true
above command will not wait for Node1 for lock_manager, just transfer the resource to Node2
Verify the cluster status it’s back to normal
That’s above Partial giveback Cluster Mode NetApp How To Resolve
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