To view the existing spares run symdisk list -hotspare
The following are restrictions/conditions in lieu of impact on I/O activity:
> When adding or removing Symmetrix spares—no restriction on I/O.
> A spare cannot be removed while in use.
Example
C:\>symdisk -sid 1234 list -hotspare
Symmetrix ID : 000000001234
Disks Selected : 7
Capacity(MB)
Ident Symb Int TID Vendor Type Hypers Total Free Actual
------ ---- --- --- ---------- ---------- ------ -------- -------- --------
DF-15A 15A C 4 SEAGATE C146X15 0 0 0 140014
DF-16A 16A C 5 SEAGATE T300155 0 0 0 286102
DF-2B 02B C 12 SEAGATE C146X15 0 0 0 140014
DF-16B 16B C 12 SEAGATE C146X15 0 0 0 140014
DF-1C 01C C 12 SEAGATE C146X15 0 0 0 140014
DF-15C 15C C 4 SEAGATE T300155 0 0 0 286102
DF-1D 01D C 13 SEAGATE T300155 0 0 0 286102