How to Identify Disk Partition of ASM Disk
ASM Disk Mapping At times, we need to know the original partition of an ASM disk for maintenance. In this post, we'll talk about 2… Read More »How to Identify Disk Partition of ASM Disk
Storage
How to Resolve ASMCMD-9463: operation failed due to lack of write permissions
ASMCMD-9463 Tried to copy a data file out of ASM, but it failed with ASMCMD-9463. [grid@primary01 grid]$ asmcmd cp +DATA/ORCLCDB/ORCLPDB/example_01.dbf /backup/example_01.dbf ASMCMD-9463: operation failed due… Read More »How to Resolve ASMCMD-9463: operation failed due to lack of write permissions
How to Resolve ORA-15173 Error Message
ORA-15173: entry 'pdbseed' does not exist in directory There're two operations that you might see ORA-15173. Creating a Multitenant Database Creating a Pluggable Database ORA-15173… Read More »How to Resolve ORA-15173 Error Message
How to Resolve INS-30510: Insuffient number of ASM disks selected
INS-30510 When we choose 2 disks to create a disk group with NORMAL redundancy during Oracle grid infrastructure 19c installation, we got INS-30510: Insuffient number… Read More »How to Resolve INS-30510: Insuffient number of ASM disks selected
How to Resolve SPFILE in DB_UNKNOWN
SPFILE in DB_UNKNOWN When I tried to restore SPFILE to the default location at nomount state, I found that SPFILE was restored to a DB_UNKNOWN… Read More »How to Resolve SPFILE in DB_UNKNOWN
How to Create Database on ACFS
Assuming that you have created a ACFS file system for the database creation. Then you can go on reading this post. Create a Database on… Read More »How to Create Database on ACFS
How to Create a ASM Disk Group
To isolate non-crucial backups from crucial data in the current disk group DATA, a separate new disk group with new disks is needed to put… Read More »How to Create a ASM Disk Group
How to Create ACFS File System
ACFS File System What is ACFS? ASM Cluster File System (ACFS) is an extension of ASM, which can mount as a file system in your… Read More »How to Create ACFS File System
How to Resolve ASM Disks Not Visible
Requirements for Disk Discovery There're several requirements for disks to be discovered: 1. Right Device Type For 11g or later, only block devices leading by… Read More »How to Resolve ASM Disks Not Visible
Why OracleASM ListDisks Not Showing Disks
ASMLib Scanned Nothing on Boot-Time ASMLib seems to be started too soon to scan iSCSI disks which may not be ready on boot in Enterprise… Read More »Why OracleASM ListDisks Not Showing Disks