FCM's IBMVSS needs to be able to specify various grain size's to SVC during the flash copy

The Flash Copy manager application passes in a 64KB grain size to the SVC on Flash Copies by default. We are currently at SVC code 7*. This uses considerably more bit-map memory than the 256KB grain size than in previous SVC code levels. IBMVSS ( IBM's FCM Volume Shadow copy product) can not at this time specify the 256KB grain size parameter for the SVC to use on the Flash Copies.
We are having bit-map memory problems in Novi on IO group 4 where two of our Exchange servers exist. Our current work-around is to keep 24 flash copies of each passive Exchange database instead of the normal retention of 30 Flash copies.
We are requesting an enhancement to the Flash Copy Manager application to specify the grain size on the Flash copy using either the IBMVCFG command utility, or the Flash Copy Manager gui. This will assist in alleviating our SVC Bit-map memory problems. Here is a view of the low free bit-map memory on Novi IO group 4. This way we can specify a 256KB grain size Flash Copy and conserve bit-map memory. If you have any questions contact Michael Archambault at 248 305 2031 or IBM rep James Martin at 586 530 1041.

name NO_SVC3_IOG_1
flash_copy_total_memory 512.0MB
flash_copy_free_memory 309.0MB

name NO_SVC3_IOG_2
flash_copy_total_memory 512.0MB
flash_copy_free_memory 109.9MB

name NO_SVC3_IOG_3
flash_copy_total_memory 512.0MB
flash_copy_free_memory 334.2MB

name NO_SVC3_IOG_4
flash_copy_total_memory 512.0MB
flash_copy_free_memory 18.8MB