SCF Reference Manual for the Storage Subsystem (G06.24+, H06.03+)

Storage Subsystem Commands
SCF Reference Manual for the Storage Subsystem—529937-007
14-24
ADD DISK Command
Virtual Disk Attributes
[ , ANTCAPACITY number ]
, ANTLOCATION { $vol | $vol.subvol.fileid }
[ , BACKUPCPU number ]
[ , CACHESIZE number ]
[ , HIGHPIN { ON | OFF } ]
[ , MODE { NOISY | QUIET } ]
, PENDOPSLOCATION { $vol | $vol.subvol.fileid}
, POOL $pool
[ , PRIMARYCPU number ]
[ , PROGRAM [[$vol.]subvol.]fileid ]
[ , STARTSTATE { STARTED | STOPPED } ]
, TYPE { VIRTUAL | MAGNETIC }
ANTCAPACITY number
is the maximum number of entries in the virtual-disk, audited-name table. number
is in the range 0 through 2500000. The default is 12288.
The value of this attribute must be large enough to hold not only the temporary and
permanent files to be created on the virtual disk but also the normal overhead
associated with key-sequenced files, as documented in the Enscribe
Programmer’s Guide.
ANTLOCATION { $vol | $vol.subvol.fileid }
is the magnetic disk location of the audited-name table for the virtual disk. This
attribute is required and has no default (not even when you use the LIKE attribute).
If you use the $vol.subvol.fileid format, fileid must exist and must
reside in a subvolume whose name begins with ZYS.
If you use the $vol format, $vol must be in the STARTED state, enabled in
TMF, and configured to be in a storage pool. The virtual disk determines the
subvolume name and file ID for the audited-name table it creates.
BACKUPCPU number
is the processor in which the backup IOP starts. The default is BACKUPCPU 1.
CACHESIZE number
is the number of entries of the name cache of the virtual disk process. The name
cache is used to hold entries in the audit-name table. number is in the range 0
through 50000. The default is 0.
Avoid making the cache too small, which can adversely affect file-management
operations (such as FILE_OPEN_ and file information requests) serviced by a
virtual disk process.