Storage Management (ASM ACFS DNFS ODM) (MOSC)

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Conflict between ASMLIB and UDEV

in Storage Management (ASM ACFS DNFS ODM) (MOSC) 8 commentsAnswered

Hi, We use Oracle ASM 19c on a standalone server. We use a software called 'appsync' to clone (thin) databases. The asm_diskstring='/dev/oracleasm/disks', '/dev/emc-appsync-*'. When the server is rebooted both are scanned causing duplicate disks (causing the starting of the ASM groups to fail). appsync uses UDEV instead of ASMLIB. There is a ORACLEASM_SCANEXCLUDE set, but not working.

ORACLEASM_ENABLED=true

ORACLEASM_UID=oracle

ORACLEASM_GID=oinstall

ORACLEASM_SCANBOOT=true

ORACLEASM_SCANORDER="dm-"

ORACLEASM_SCANEXCLUDE="sd emc-appsync"

ORACLEASM_SCAN_DIRECTORIES=""

ORACLEASM_USE_LOGICAL_BLOCK_SIZE="false"

After the server comes up I shutdown ASM, change asm_diskstring to just /dev/oracleasm/disks and the groups come up.

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