ADD DISK OPERATION HUNG AND REBALANCE IS NOT HAPPENING
Last updated on NOVEMBER 04, 2016
Applies to:Oracle Database - Enterprise Edition - Version 18.104.22.168 to 22.214.171.124 [Release 11.2]
Information in this document applies to any platform.
1] Several disks have been added to an existing diskgroup in RAC environment and sqlplus session initiating adding operation does not return the control which have to be disconnected manually.
2] Rebalance is not occuring from v$asm_operation
no rows selected
3] "disk validation pending" message in other nodes is visible but there is no "SUCCESS: refreshed membership" message in ASM alert.log
NOTE: disk validation pending for group 2/0x75fe02b8 (DATA)
Wed Aug 28 05:28:52 2013
4] RBAL trace show the following message repeatedly.
Note "DD.0.0" for dismounted disk discovery enqueue and "6" for exclusive mode.
5] Querying v$asm_disk and v$asm_diskgroup is hung but querying v$asm_disk_stat and v$asm_diskgroup_stat view works.
Example of v$asm_disk_stat output for new devices. Note "ADDING" state .
2 10 OPENED MEMBER SYNCING ADDING DATA_0010
2 11 OPENED MEMBER SYNCING ADDING DATA_0011
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