Storage Management (ASM ACFS DNFS ODM) (MOSC)

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Why bother migrating to ASM ?

edited May 14, 2018 11:28AM in Storage Management (ASM ACFS DNFS ODM) (MOSC) 22 commentsAnswered ✓

Q1. What would be the benefits of migrating from a SAN based, file system storage for Databases to ASM ? What would outweigh the effort in doing this - i.e. why bother ?

I know Oracle literature gives some benefits but they all look rather weak to me when trying to justify the effort in migrating ( and subsequent effort in changing the backup and standby solution ) -

  • Performance Optimization ( any better than well tuned SAN/RAID ? )
  • Redundancy Protection ( any better than RAID ? )
  • No need for 3rd party LVM’s ( most OS / hardware vendors supply some sort of free LVM anyway )
  • It provides shared storage for RAC - actually is it not Grid Infrastructure which does this by supplying the ACFS file system, as opposed to ASM itself ( besides all your basically needing is some sort of shared / clustered storage eg NFS/dNFS or is the likes of OCFS2, GFS etc not free anyway ? )

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