The performance of an external storage system is affected by local system operations. Conversely, performance of the host and local system are affected by the attributes assigned to the external system.
Note the following regarding performance:
- The performance and status of the external system affects the performance of the mapped external volume. A high number of processes running on the external system slows the processing speed of read/write requests and might cause a missing interrupt handler.
- If the host connected to the local storage system issues several I/O requests to be processed by the external storage system, the requests from the host might time out.
- When you run commands from the local storage system that result in more I/O requests being processed than the external storage system can handle, the commands might time out and an error might occur.
- When there is a process running between an external volume and the host, it is important that the Blocked Path Monitoring time of the external volume is the same as or shorter than the timeout period of the process that is running on the host. If the Blocked Path Monitoring time is longer than the timeout period of the process running on the host, the process on the host might time out if the power supply is interrupted or if an error occurs in the external storage system.