Extended copy time causes and corrective actions
The following table describes some causes and possible responses in the case of extended copy times.
|
Cause |
Corrective action |
|
A processor with an MP usage rate that exceeds 80% exists within the MP unit to which the P-VOL and S-VOL are allocated. |
Examine the configuration. For information about checking the MP usage rate, see the Performance Guide of your storage system. |
|
The HOST I/O Performance option is enabled. |
Disable the option (see System options). |
|
The S-VOL's HDD or external storage performance is lower than the P-VOL's. |
Make the configuration of the S-VOL's HDD or external storage the same as the P-VOL's. |
|
The P-VOL's HDD or external storage has an error. |
Review the error and make the necessary correction. |
|
The S-VOL's HDD or external storage has an error. |
Review the error and make the necessary correction. |