Enable DMP support for Oracle Automatic Storage Management (ASM) to make DMP devices visible to ASM as available disks. DMP support for ASM is available for char devices (/dev/vx/rdmp/*
).
To make DMP devices visible to ASM
/dev/vx/rdmp/*
For example:
SQL> show parameter ASM_DISKSTRING; NAME TYPE VALUE -------------------- ----------- --------------- asm_diskstring string /dev/vx/rdmp/*
# vxdmpraw enable username groupname mode [devicename ...]
where username represents the ASM user running the ASM instance, groupname represents the UNIX/Linux groupname of the specified user-id, and mode represents the permissions to set on the device. If you specify one or more devicenames, DMP support for ASM is enabled for those devices. If you do not specify a devicename, DMP support is enabled for all devices in the system that have an ASM signature.
For example:
# vxdmpraw enable oracle dba 765 eva4k6k0_1
ASM support is enabled. The access permissions for the DMP device are set to the permissions specified by mode. The changes are persistent across reboots.
SQL> select name,path,header_status from v$asm_disk;
NAME PATH HEADER_STATUS --------------------------------------------- ... ....... .... /dev/vx/rdmp/eva4k6k0_1 CANDIDATE ... ....... ....