Dell EMC Solutions Enabler 9.2 SRDF Family CLI User Guide

By default, the failover, split, and suspend operations cause SRDF to wait until the current cycle completes before dropping the session and making the devices Not Ready on the link. Completion time for these operations may be quite long.

Use the -immediate option in conjunction with failover, split, or suspend commands to immediately drop the SRDF/A session and make the devices Not Ready on the link.

The devices remain in asynchronous mode and pending tracks are converted to invalid tracks.

Use the symrdf query -rdfa command to display the number of tracks not committed to the R2 side and invalid tracks.

-immediate option restrictions

• The -immediate option applies only to devices participating in an active SRDF/A session.
• The -immediate option may result in remote invalid tracks on both the R1 and the R2 sides.
• The -immediate option does not compromise the consistency of data on the R2 side, but requires operator intervention to resolve any invalid tracks by using the correct symrdf command and pair state.
• If consistency is enabled on SRDF/A-capable devices, the -force option must used.