How to resize mirror volume in veritas volume manager 3.5 on Solaris 9 OE

Hi all,

I have a problem with vxvm volume which is mirror with two disks. when i am try to increase file system, it is throwing an ERROR: can not allocate 5083938 blocks, ERROR: can not able to run vxassist on this volume.

Please find a sutable solutions.

Thanks and Regards
B. Nageswar Rao,

[edit by pressy; no email pls]