1 04/19/84  add_lv, alv
 2 
 3 Syntax as a command:  alv lv_name -control_arg
 4 
 5 
 6 Function:  causes a logical volume to be accepted for paging.  This
 7 command may be issued in ring 1 or ring 4.
 8 
 9 
10 Arguments:
11 lv_name
12    is the name of a registered logical volume.
13 
14 
15 Control arguments:
16 -all
17    is to mount all incomplete logical volumes.
18 
19 
20 Notes:  If all physical volumes for the logical volume are already
21 accepted, known, or assumed, the add_lv command ensures that all labels
22 have been read and checked, and then accepts the logical volume for
23 paging.
24 
25 
26 If one or more volumes are missing, the add_lv command assigns drives
27 for the missing volumes, prints mount messages for each missing volume
28 in the form:
29 
30 mount pv k202 on dska_07
31 
32 and sets the assigned drives into the assumed state.  The operator may
33 mount the physical volumes where requested or use his own judgment.  As
34 each physical volume is mounted, the operator issues an add_vol command
35 to the system; the last add_vol command causes the logical volume to be
36 accepted with a message of the form:
37 
38 lv cp22 mounted private lv cp22 mounted
39 
40 
41 When the add_lv command is issued, all assumed drives should have the
42 correct packs mounted; otherwise an error message is typed.
43 
44 The list_disks command lists all outstanding add_lv commands and the
45 del_lv command cancels an outstanding add_lv.
46 
47      User processes may initiate add_lv commands for private logical
48 volumes by use of the attach_lv command.  The system proceeds as though
49 an add_lv command had been issued by the operator.
50 
51 
52 Unless the NODT and/or NOLV keyword is included with the BOS BOOT
53 command, the system attempts to mount all logical volumes during
54 initialization that were mounted at the last shutdown.  For each
55 physical volume required, the system attempts to use the drive on which
56 the volume was mounted at the last shutdown.