What is ASM disk repair time?

What is ASM disk repair time?

In other words, the DISK_REPAIR_TIME value is the acceptable time of duration during you need to fix the failure. This setting is also the countdown timer of ASM to drop the disk(s) that have been taken offline. The default setting for DISK_REPAIR_TIME is 3.6 hours.

How long does ASM rebalance take?

The ASM Disk Group rebalance speed is slow and averages about 16M/s (about 1G/min) when ACFS filesystem exist, which correlates to rebalance needing over 50 hours to finish.

How do I check ASM disk errors?

If Oracle ASM detects errors, then Oracle ASM stores information about errors in the alert log. To check disk groups, perform the following steps: From the Disk Groups page, select a disk group in the list and click Check. A confirmation dialog for the check disk group operation displays.

How do I check my ASM status?

Verify the ASM setup

1. Change to the Oracle Clusterware/Grid Infrastructure home directory: For Oracle RAC 10g Release 2/Oracle RAC 11g Release 1: # cd $CRS_HOME/bin.
2. Verify the status of ASM on all the nodes in the cluster: # ./srvctl status asm ASM instance +ASM1 is running on node galaxy.

How do I get ASM disk online?

To bring a disk online, select the disk to bring online and click Online. If you bring a disk online, then Oracle ASM performs the following: Oracle ASM performs the online operation on the selected disks. You can select one or more or disks, or all of the disks to bring online.

What is ASM disk?

Automatic Storage Management (ASM) is an integrated, high-performance database file system and disk manager. ASM groups the disks in your storage system into one or more disk groups. You manage a small set of disk groups and ASM automates the placement of the database files within those disk groups.

How do I stop ASM rebalancing?

0.2, the operational range of values is 0 to 11 inclusive. Specifying 0 for the POWER in the ALTER DISKGROUP REBALANCE command will stop the current rebalance operation (unless you hit bug 7257618).

How do you increase the power limit in ASM?

Power limit can be specified when we add or drop disk(s) to/from a diskgroup using ALTER DISKGROUP ADD DISK command. Once rebalance is in progress, you can query v$asm_operation to check the progress of re-balance operation. We can once again use ALTER DISK GROUP command to increase/decrease the power limit.

Where is the ASM disk located?

To identify the underlying physical device that the ASM disk point to, you can use the oracleasm querydisk command. The querydisk option will list the major and minor numbers that can be used to match the physical device.

How can I tell if a database is using ASM?

Thank. Just read the name of a file in dba_data_files, if it starts with + then you use ASM.

How do I recover an ASM instance?

Step 4: Restore database

1. Start instance using the local copy of your pfile from step 1.
2. Use RMAN to restore the controlfiles and database.
3. Connect to the ASM instance and get the controlfile name.
4. Edit the init[sid].
5. Re-create the spfile.
6. Shutdown and restart the instance to use the newly created spfile.

Where is my ASM disk path?

To identify the underlying physical device that the ASM disk point to, you can use the oracleasm querydisk command. The querydisk option will list the major and minor numbers that can be used to match the physical device. The following example was run on a virtual server hosting ASM and an Oracle database.