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Question and Answer

Connor McDonald

Thanks for the question, Pradeep.

Asked: November 13, 2019 - 7:34 am UTC

Last updated: November 25, 2019 - 12:26 pm UTC

Version: 11.2.0.4

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You Asked

Dear Sir,

Please help me to know below points.

1)difference between DBRM and IORM?
2)difference between ACFS,ADVM and DBFS?

Thanks
Pradeep



and Connor said...

DMRM is the database resource manager, which is available on any hardware that Oracle *database* is running. You can control resource utilization by database sessions on the *database* server, eg CPU, undo, lock duration, etc.

IORM is an Exadata only facility. On an Exadata architecture, you have database servers and also storage servers (ie, machines with CPUs that provide storage access to the database). You can control the allocation of resources on the *storage* servers with IORM.

https://docs.oracle.com/en/engineered-systems/exadata-database-machine/sagug/exadata-storage-server-iorm.html#GUID-E5683B80-0440-4496-8DBC-177A9BF0B047

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Comments

2 point missed out

Pradeep kumar, November 20, 2019 - 8:17 am UTC

Dear sir,
Please explain 2nd point as well.

Thanks
Pradeep
Connor McDonald
November 25, 2019 - 12:24 pm UTC

Whoops - my mistake, but I see someone has already explained it.

ACFS,ADVM,DBFS

A reader, November 21, 2019 - 6:05 am UTC 

Did you try and google it or maybe read the resulting Oracle Docs?

ACFS -> ASM Cluster File System
ADVM -> ASM Dynamic Volume Manager

https://docs.oracle.com/database/121/OSTMG/GUID-7783FE8B-3BAD-4C4F-83C5-DF1426340290.htm#OSTMG30000

DBFS -> Database File System

https://docs.oracle.com/database/121/VLDBG/GUID-6B5634D3-D539-4D1F-ABA3-0C903AC28639.htm#VLDBG14099

Cheers!

Connor McDonald
November 25, 2019 - 12:26 pm UTC

Good input.
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