When increasing DP-VOL capacity, do not perform the following operations. When you perform these operations, do not increase DP-VOL capacity.Requirements for increasing DP-VOL capacity
You can increase DP-VOL capacity up to 59.9 TB. To notify the host that the DP-VOL capacity has been increased, make sure host mode option 40 is enabled. Processing differs as follows, depending on the value of host mode option 40:
When host mode option 40 is not enabled, the host will not be notified that the DP-VOL capacity has been increased. Therefore, the DP-VOL data has to be read again by the host after the capacity is increased.
When host mode option 40 is enabled, the host is notified that the DP-VOL capacity has increased. If the operating system cannot recognize the value of capacity that was increased, the DP-VOL data has to be read again by your storage system.
The following requirements are important when increasing the DP-VOL capacity:
The DP-VOL to be increased is not shared with the VSP G200, G400, G600 product that does not allow increasing the DP-VOL (See Increasing DP-VOL capacity).
The DP-VOL is not undergoing LDEV formatting.
The capacity to be added to the DP-VOL must be specified within the range indicated below LDEV Capacity in the Expand V-VOLs window.
The pool related to DP-VOLs to be increased is in any one of the following statuses:
Normal
Exceeding the subscription limit threshold
In progress of pool capacity shrinking
When increasing DP-VOL capacity, do not perform the following operations. When you perform these operations, do not increase DP-VOL capacity.
Operations using Virtual LUN
Creating DP-VOLs
Restoring pools
Deleting DP-VOLs
Operations to increase the DP-VOL capacity in another instance of CCI
Maintenance of your storage system
After increasing DP-VOL capacity, refresh the display, then confirm that the DP-VOL is increased. If the DP-VOL capacity is not increased, wait a while, refresh the display again, and confirm that the DP-VOL is increased. If you perform an operation without making sure that the DP-VOL is increased, operations may fail.
If either of the following operations is being performed, the DP-VOL capacity might not be increased:
Volume Migration
Configuration change of journal used by Universal Replicator
Quick Restore by ShadowImage