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HiCommand Dynamic Link Manager User's Guide (for Windows(R))
When a path error is detected by HDLM, you must immediately resolve the error and restore the path.
A check for path errors is performed whenever an I/O is issued, or the Windows Plug and Play function detects that the paths are disconnected. If there are any paths through which I/O is not normally issued, such as a non-owner path, you should enable path health checking in order to detect errors regardless of I/O issuance. For details about path health checking, see 2.9 Detecting errors by using path health checking.
When a path error is detected, HDLM performs failover for the path and outputs the KAPL08022-E message. This message indicates that an error has occurred in the components that make up the path. Figure 5-1 Error location when the KAPL08022-E message is output indicates these components.
Figure 5-1 Error location when the KAPL08022-E message is output
Figure 5-2 Troubleshooting procedure when a path error occurs shows the troubleshooting procedure when the KAPL08022-E message is output.
Figure 5-2 Troubleshooting procedure when a path error occurs
- Organization of this section
- 5.3.1 Using the HDLM GUI to handle a path error
- 5.3.2 Using the HDLM command (dlnkmgr) to handle a path error
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