ODA (Oracle Database Appliance): The Steps to replace failing disks

Asset ID:	1-71-1496114.1
Update Date:	2012-10-09
Keywords:

Solution Type Technical Instruction Sure

Solution 1496114.1 : ODA (Oracle Database Appliance): The Steps to replace failing disks

Applies to:

Oracle Appliance Kit - Version 2.1.0.1 to 2.3.0.0 [Release 2.1 to 2.3]
Oracle Database Appliance - Version All Versions to All Versions [Release All Releases]
Information in this document applies to any platform.

Goal

The intention of this article is to describe which steps you should follow on replaicing failing disks on ODA (Oracle Database Appliance)

Fix

Oracle Database Appliance has the following disks on the shared storage:

20x 600GB - 3.5" SAS HDD - for RDBMS DATA (any slot except the top row of disks)

 4x  73GB - 3.5" SAS SSD - for RDBMS REDO (slot in the top row of 4 disks)

In case one or more disks need to be replaced you should follow the following steps:

1. check the current status of your shared storage disks from ASM & OAK prospective, make sure all other disks are in good shape and ASM redundancy will not affected by the removal of the disk you intend to replace:

- from ASM point of view you could issue, as OS grid user, the following command:

export ORACLE_SID=+ASM1

asmcmd lsdsk -p

- from OAK point of view issues the command:

oakcli show disk

2. Take a dtabases backup in case something goes wrong

3. In order to identify the failing disk on ODA box with light issue:

oakcli locate disk pd_xx 

(where xx is the number 01,23 of the failing disk)

4. Pull-out the bad disk

5. Pull-in the new disk

6. Check the status of the new inserted disk issuing:

oakcli show disk

(wait some minuts, about 5, in case force "oakcli doing oakcli reinit pd_xx" )

7. Check on ASM the status of the new disk, as grid OS user:

export ORACLE_SID=+ASM1

asmcmd lsdsk -p

8. Check the ASM rebalance process and wait for it, in case you need to replace more then one disk

SQL> select GROUP_NUMBER, OPERATION, STATE, ACTUAL, SOFAR, EST_MINUTES from gv$asm_operation;

References

<NOTE:1382300.1> - ODA (Oracle Database Appliance) : How to replace FAILED SYSTEM BOOT DISK

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