ASMLIB is__________.

ASMLIB is__________.

ASMLIB is__________.

A.
Used to enhance disk I/O performance

B.
Used to prevent problems with persistant names and permissions after a Linux reboot.

C.
A requirement that manages ASM disks

D.
Used to provide mirroring for ASM disk groups

Explanation:
ASMLib is an optional support library for the Automatic Storage Management
feature of the Oracle Database. Automatic Storage Management (ASM) simplifies database
administration and greatly reduces kernel resource usage (e.g. the number of open file
descriptors). It eliminates the need for the DBA to directly manage potentially thousands of Oracle
database files, requiring only the management of groups of disks allocated to the Oracle
Database. ASMLib allows an Oracle Database using ASM more efficient and capable access to

the disk groups it is using.
Reference: Oracle ASMLib

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Oracle Guru

Oracle Guru

B is correct.

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S. K. DAS

S. K. DAS

C should be the right answer.

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Naveed

Naveed

B is correct

Problem with devices in Linux is that the device name can change after a server reboot. That means that ASM might not come up since the device names may not be matching with asm_diskstring parameter after the reboot. Especially, since OCR and Voting disks can be stored in ASM devices from 11.2 onwards, debugging GI startup problems are painful if the device persistence is not setup properly.

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