1 04/21/86  add_vol, av
 2 
 3 Syntax as a command:  av pv_name drive_name
 4 
 5 
 6 Function:  tells the system that a physical volume is on a disk drive.
 7 The system then reads and checks the volume label.  This command can be
 8 used in ring 1 or ring 4.
 9 
10 
11 Arguments:
12 pv_name
13    is the name of a physical volume.
14 drive_name
15    has the form <subsys>_<nn>{s}
16    where:
17      subsys is the disk subsystem name (dska)
18      nn is the device number. (00 to 64)
19      s is the subvolume name, for MSU3380 or MSU3390 (a,b, or c).
20        example: dska_02 or dskb_00b.
21    or drive_name may be -all to cause the system to read and check the
22    labels of all assumed physical volumes.
23 
24 
25 Notes:  The registration file for volume_name is consulted to find out
26 the logical volume name and to validate the label.  The volume label is
27 read and checked.  If the label is correct the drive is left in the
28 known state.
29 
30 If an add_lv command for the logical volume containing this physical
31 volume has been previously issued, and if this add_vol command
32 completes the logical volume, the logical volume is accepted for paging
33 and a message is printed.