The capacity of P-VOLs and S-VOLs must be less than or equal to the installed license capacity. Volume capacity is counted only once, even if you use the volume more than once. Do not multiply the capacity by the number of times a volume is used (for example, a P-VOL used as the source volume for three pairs is counted only once).
For an external volume, the total volume capacity is counted, but for a DP-VOL, the pool capacity being used by the volume is counted. For a data-reduced volume*, the licensed capacity is the data capacity before saving. The pair with the available licensed capacity exceeded cannot be created.
*On VSP One Block 85, the term data-reduced volume refers to a DRS-VOL. On VSP One B20 series, the term data-reduced volume refers to a V-VOL with capacity saving enabled.
After you start performing pair tasks, monitor your capacity requirements to keep the used capacity within the capacity of the installed license.
You can continue using ShadowImage for Mainframe volumes in pairs for 30 days after licensed capacity is exceeded, regardless of whether an external volume or a DP-VOL is used. After 30 days, the only allowed operation is pair deletion. The problem of exceeding the licensed capacity can be resolved by reducing the capacity to less than or equal to the licensed capacity. However, the warning message will remain displayed. The warning message is updated once a day, therefore when the problem is resolved, the warning message will automatically disappear within 24 hours.
For more information about licenses, see the System Administrator Guide.