New Celldisk Errors CD_FAIL [432] Poor Performance

Asset ID:	1-72-1475920.1
Update Date:	2012-09-25
Keywords:

Solution Type Problem Resolution Sure

Solution 1475920.1 : New Celldisk Errors CD_FAIL [432] Poor Performance

Applies to:

Exadata Database Machine X2-8 - Version All Versions to All Versions [Release All Releases]
Information in this document applies to any platform.

Symptoms

The disk has been marked critical. And the disk has been replaced.

The process created the lun and celldisk.

But automatic disk management did not complete all steps.

The process had created one grid disk. And did not create other disks.

Even the manual disk creation encounters errors:

CellCLI> create griddisk FLASH_CD_05_p1wgrncel01 celldisk=CD_05_p1wgrncel01,size=50.6875G
CELL-02583: The operation is not permitted on this cell disk.

CellCLI> drop griddisk DATA_CD_05_p1wgrncel01
CELL-02550: Cell Server (CELLSRV) cannot drop the grid disk.

CellCLI> alter griddisk DATA_CD_05_p1wgrncel01 inactive
CELL-02637: Response returned by cellsrv is invalid.

The cell alert.log shows below errors:

create CELLDISK CD_05_p1wgrncel01 on device /dev/sdf
Mon Jul 16 13:39:15 2012
create GRIDDISK WGRN_DATA_CD_05_p1wgrncel01 on CELLDISK CD_05_p1wgrncel01
GridDisk name=WGRN_DATA_CD_05_p1wgrncel01 guid=42d0c4c0-b72a-48f3-a0c1-ea445ad944c9 (2295385604)
NOTE: Initiating ASM instance operation:
Operation: DROP and ADD of ASM disks for 1 Grid disks guids.
NOTE: Initiating ASM Instance operation: ASM DROP ADD disk on 1 disks
Published 1 grid disk events ASM DROP ADD disk on DG WGRN_DATA to:
ClientHostName = p1wgrndb02.wgrn.root, ClientPID = 19172
Mon Jul 16 13:39:15 2012
warning: ADD GRIDDISK WGRN_FLASH_CD_05_p1wgrncel01 on celldisk CD_05_p1wgrncel01 failed: parent celldisk is marked 'poor performance' type=CD_FAIL [432]
Mon Jul 16 13:39:25 2012
WARNING: CellDisk name=CD_05_p1wgrncel01 on dev=/dev/sdf is marked as 'poor performant' in cell_disk_config.xml file
Mon Jul 16 15:16:25 2012
warning: ADD GRIDDISK WGRN_FLASH_CD_05_p1wgrncel01 on celldisk CD_05_p1wgrncel01 failed: parent celldisk is marked 'poor performance' type=CD_FAIL [432]

Changes

Exadata image version 11.2.3.1.0

Cause

This behavior has been fixed through Bug 13815708 and fixed in image version 11.2.3.1.1

Solution

<Patch: 13998727> fixes this issue as detailed in the readme:

Readme, fixed:
<Bug: 13815708> CREATE GRIDDISK FAIL B/C OF PARENT CELLDISK'S 'POOR PERFORMANCE'

A quick workaround is to reenable the problem lun or restart the cellsrv process and then once this is done create the disks on that lun as described in <Document: 1281395.1>

You may need to drop the existing griddisk from diskgroup befor dropping the griddisk:

CellCli> ALTER LUN 0_5 REENABLE FORCE;

CellCli> drop griddisk DATA_CD_05_p1wgrncel01;
CellCli> drop griddisk DBFS_CD_05_p1wgrncel01;
CellCli> drop griddisk RECO_CD_05_p1wgrncel01;

CellCli> drop celldisk CD_05_p1wgrncel01;

References

<NOTE:1281395.1> - Steps to manually create cell/grid disks on Exadata V2 if auto-create fails during disk replacement

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