PRIMECLUSTERGlobal Disk Services Configuration and AdministrationGuide 4.5

8.3.1 Changing the I/O response time

Here the method of changing the time before the I/O responds will be explained.

1. Check the settings of the I/O response time assurance.

   Example) If checking the I/O Response Time Assurance settings for the class Class

   # sdxinfo -I -c Class
   CLASS   MODE TIME PANIC
   ------- ---- ---- -----
   Class   on   23   on

2. Change the I/O response time

   Example) Change the I/O response time of the class Class to 40 seconds.

   # sdxattr -C -c Class -a iotimeout=on:40

3. Check that the settings of the I/O Response Time Assurance Function has been changed.

   Example) If checking the I/O Response Time Assurance settings for the class Class

   # sdxinfo -I -c Class
   CLASS   MODE TIME PANIC
   ------- ---- ---- -----
   Class   on   40   on

   If the value set in procedure 2 is displayed in the MODE field, the TIME field and the PANIC field of the specified class, the change in the settings of the I/O Time Response Assurance is complete.

4. Change the settings of the Hang-up Monitoring Function if a value other than the default value was set for the I/O response time. Set the conclusion time with the same value of I/O response time, and set the monitoring interval twice the value of conclusion time.

   For details, see "8.5 Hang-up Monitoring Function."