Storage Management (ASM ACFS DNFS ODM) (MOSC)

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eliminate imbalance

edited Feb 14, 2012 9:55PM in Storage Management (ASM ACFS DNFS ODM) (MOSC) 1 commentAnswered
Hi all.

  Scenario is:  GI 11.2.0.2 PSU 2

  FAILGROUP 1 has 65 disks 8GB each

FAILGROUP 2 has been modified to add 5 disks of 120GB each,  and keeps 41 of the 8GB disks.

  During this operation error ORA-15041 is raised, some disks in failgroup 1 have 0MB free.

  Customer released some space resizing datafiles and rebalance finished ok.

  Now we see several disks in FG1 (8GB disks) with low FREE_MB (200MB as opposed to 2GB, 4GB or even 6GB out of 8GB in the same FG).

  Q1 We believe this has been caused by the different sizes in disks, right?

  Q2 Can this situation be solved using alter system set "_asm_imbalance_tolerance"=0, or it is supposed to work only in pre 11.1?

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