HP 3000 Manuals

NEWVOL [ Volume Management ] MPE/iX 5.0 Documentation


Volume Management

NEWVOL 

The NEWVOL command adds a new member volume to an existing volume set.
If you include the ldev parameter, then the command initializes the new
volume.  That is, the command can define a volume in the set without the
volume being present online.  Defining a volume means that an entry
identifying the volume is put on the volume set information table (VSIT)
on the master volume, but the volume will not be initialized or available
to the system.

The NEWVOL and INITVOL commands work together.  If the volumes are not
online, you can define the volumes with the NEWVOL command by not
including the ldev parameter.  Later, when the volume is available and
online, you can use the INITVOL command to initialize the volume.

Task 

Adds a new volume to a volume set.

Capability 

CV, create mountable volume set

Syntax 

                           [[LDEV=]ldev                    ]
NEWVOL [VNAME=]sname:vname [[PERM=]percentperm             ]
                           [[TRANS=]percenttrans           ]
                           [[CLASSES=](cname[[,,cname]...])]
Parameters 

sname                 The name of the volume set where the new volume
                      will reside.  Required.

vname                 The name assigned to the new volume.  The name must
                      be unique.  Required.

ldev                  A number from 1 to 100 specifying the logical
                      device number of the volume being created.  It must
                      specify a drive with a volume in the SCRATCH or
                      UNKNOWN state.  Optional.


NOTE If the ldev parameter is omitted, the volume is defined only; that is, an entry is placed in the volume set information table (VSIT), but the volume is not initialized. You must then use INITVOL to initialize the volume. (Refer to the INITVOL command in this chapter.)
percentperm A number between 0 and 100 specifying the maximum percentage of disk space that can be allocated as permanent storage. Optional. percenttrans For system volumes only, a number between 0 and 100 specifying the maximum percentage of disk space that can be allocated as transient storage. Optional. cname The class assigned to the new volume. The class must have been created previously with the NEWCLASS or NEWSET command. If this parameter is omitted, the volume will be assigned to the volume class DISC. Optional. Example This example shows how to add a volume to an existing volume set. 1. Before attempting to create a new volume, use the DSTAT ALL command to make certain the master volume of the volume set is in the MASTER state. 2. Next, use the SHOWSET command with the STRUCT parameter to determine the structure of the volume set, BSET. The STRUCT parameter shows that there are five volumes in volume set BSET and two classes, XL_DATA and the default class, DISC. It also shows the volumes in the classes. ________________________________________________________________ | | | | | volutil: :DSTAT ALL | | | | LDEV-TYPE STATUS VOLUME (VOLUME SET - GEN) | | --------- ------- -------------------------- | | 1-079350 MASTER MEMBER1 (MPEXL_SYSTEM_VOLUME_SET-0 | | 2-079350 MEMBER MEMBER2 (MPEXL_SYSTEM_VOLUME_SET-0 | | 21-079330 MASTER BVOL1 (BSET-0) | | 22-079350 MEMBER BVOL2 (BSET-0) | | 23-079350 UNKNOWN | | | | volutil: SHOWSET BSET STRUCT | | | | Volumes in set: BSET | | | | BVOL1 | | BVOL2 | | BVOL3 | | BVOL4 | | BVOL5 | | | | Classes in set: BSET | | | | XL_DATA | | DISC | | | ________________________________________________________________ ____________________________________________ | | | | | Volumes in class: BSET:XL_DATA | | | | BVOL1 | | BVOL3 | | | | Volumes in class: BSET:DISC | | | | BVOL1 | | BVOL2 | | BVOL3 | | BVOL4 | | BVOL5 | | | ____________________________________________ 3. Now add another volume to the set. For this example, the volume is not physically mounted, so it cannot be initialized. Since a class is not specified, the volumes are automatically added to the DISC class. 4. Use SHOWSET STRUCT to verify that the volume has been added. _______________________________________________________________ | | | | | volutil: NEWVOL BSET:BVOL6 | | | | *Verify: Define new member volume BSET:BVOL6 [Y/N]? Y | | | | *Warning: Volume only defined and not physically | | initialized. | | | | volutil: SHOWSET BSET STRUCT | | | | | | Volumes in set: BSET | | | | BVOL1 | | BVOL2 | | BVOL3 | | BVOL4 | | BVOL5 | | *BVOL6 | | | _______________________________________________________________ ____________________________________________ | | | | | Classes in set: BSET | | | | XL_DATA | | DISC | | | | Volumes in class: BSET:XL_DATA | | | | BVOL1 | | BVOL3 | | | | Volumes in class: BSET:DISC | | | | BVOL1 | | BVOL2 | | BVOL3 | | BVOL4 | | BVOL5 | | *BVOL6 | | | ____________________________________________
NOTE The * indicates that the volume has been defined but not initialized. Refer to the INITVOL command in this chapter.


MPE/iX 5.0 Documentation