Path errors during boot processing, Path errors during boot processing -6, Environment, see – HP Hitachi Dynamic Link Manager Software Licenses User Manual

Page 344: Actions to take for a path error in a boot disk, Disk, perform the procedure described in, Actions to take for a path error in a

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If any path cannot be placed online due to an error, the KAPL01039-W

message will appear. To ignore such paths and to continue processing, type
y. To cancel the processing, type n.

Recheck the statuses of the paths that cannot be placed online, and resolve

the problem.

Actions to Take for a Path Error in a Boot Disk Environment

This section describes the action to take if an error occurs in a boot disk

environment on a path connecting to the boot disk.

Path Errors During Boot Processing

The procedure for investigating the cause of an error, and the appropriate

action to take, will differ according to the stage of the boot processing during

which the path error occurred. The following describes error investigation

methods at each stage of boot processing.

When a Path Error Occurs at the Initial Stage of Boot Processing

The initial stage of boot processing is the period before the root file system's

mount device (one of the paths to the boot disk) specified as the boot device

in the OBP is switched (remounted) to the device specified in the rootdev

parameter. At this stage, accessing the boot disk does not involve the HDLM

driver: The boot disk is accessed via the path specified as the boot device in

the OBP. If an error occurs on this path at this stage, boot processing will be

cancelled. In this case, investigate the error and take appropriate action,

referring to the following information:

The message output to the console by the OBP

The message output to the console by Solaris

The message output to the console by the HBA driver

In Solaris 8 or Solaris 9, if an error occurs only on the path specified as the

boot device in the OBP, you can boot the system by specifying, in the OBP, a

boot device name with a different path. In Solaris 10 or Solaris 11, reboot

after recovering from the path error.

When a Path Error Occurs After the HDLM Driver Starts Path Processing

At completion of the initial stage of boot processing, the HDLM driver starts

accessing the boot disk using multiple paths. If a path error occurs at this

stage, recovery action will depend on whether or not the HDLM manager has

started.

When a path error occurs before the HDLM manager starts

If boot processing is cancelled due to errors on all paths to the boot disk

HDLM does not output the KAPL08022-E message on detection of a path

error. Investigate the error and take appropriate action, referring to the

following information:

5-6

Troubleshooting

Hitachi Dynamic Link Manager (for Solaris) User Guide

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