i also have same iissue:
is there any way that we can change this initial lun geometry without destroying and recreating lun
NAS01> vol size Vsphere_vol1
vol size: Flexible volume 'Vsphere_vol1' has size 800g
NAS01> lun resize /vol/Vsphere_vol1/vsphere_lun1 +100g
lun resize: New size exceeds this LUN's initial geometry
lun resize: max size: 511g (549747425280)
NAS01> lun maxsize /vol/Vsphere_vol1
Space available for a LUN of type: solaris, aix, hpux, linux, netware, vmware, openvms, xen, solaris_efi or image
Without snapshot reserve: 744g (799895715840)
With snapshot reserve: 744g (799895715840)
With complete snapshot reserve: 372g (399963586560)
Space available for a LUN of type: windows, windows_gpt, windows_2008 or hyper_v
Without snapshot reserve: 745g (799990732800)
With snapshot reserve: 745g (799990732800)
With complete snapshot reserve: 372g (399946014720)
NAS01*> lun geometry /vol/Vsphere_vol1/vsphere_lun1
SCSI Disk Geometry:
512 bytes/sector
1024 sectors/track
16 tracks/cylinder (heads)
16384 sectors/cylinder
64000 cylinders
1048576000 sectors
8388608 cylinder size (8 MB)
536870912000 device size (512000 MB)
549747425280 max resize size (524280 MB)