Bad Blocks in the Oracle Database Due to Bit Errors on the Link Between the Host and the Storage

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[Symptom]

Bit errors occur on the link between the host and storage, and bad blocks exist in the Oracle database.

                                                                             

[Alarm information]

There is an alarm indicating that excessive bit errors occur on the port.

[Cause Description]

The host HBA firmware is faulty.

VMware release note (whether this problem occurs only in VMware)

143834hc8cs7lzcb7333vm.png?image.png

https://www.vmware.com/resources/compatibility/detail.php?deviceCategory=io&productid=35086&deviceCategory=io&details=1&partner=6_bpartner&releases=408&deviceTypes=5&VID=10df&SVID=10df&page=2&display_interval=10&sortColumn=Partner&sortOrder=Asc

[Fault Locating]

1.       Check whether bit errors occur on the link between the host and the storage device and whether the link quality is poor.

2.       The HBA card used by the host is Emulex LPe16002B-M6, and the firmware version is earlier than 12.0.193.13.

3.       The rule of bad blocks is that the 32-byte data is replaced.

143844qzob8xc7rrgjjlbg.png?image.png

 

[Solution]

1. Upgrade HBA firmware to 12.0.193.13 or later.

[Check After Restoration]

Bit errors do not cause bad blocks.

[Application Scope]

All storage devices.


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