Creating A Nonsystem Volume Set [ Introduction to MPE XL for MPE V System Administrators ] MPE/iX 5.0 Documentation
Introduction to MPE XL for MPE V System Administrators
Creating A Nonsystem Volume Set
Like additional system volumes, nonsystem volume sets are initialized and
configured to the system with the system management utility, VOLUTIL. For
more information on commands available with VOLUTIL, refer to "Volume
Management Utility (VOLUTIL)" presented shortly.
To create and initialize a nonsystem volume set:
1. To see which volumes have been mounted and check whether the
system has recognized them, enter:
:DSTAT
LDEV-TYPE STATUS VOLUME (VOLUME SET - GEN)
----------- --------- ---------------------------
21-079350 SCRATCH
22-079350 SCRATCH
23-079350 UNKNOWN
Be sure the volumes are in the Scratch or Unknown state.
2. Run VOLUTIL. Enter:
:RUN VOLUTIL.PUB.SYS
or
:VOLUTIL
_________________________________________________________________
NOTE The system prompt will change to the VOLUTIL prompt
(volutil:) indicating that VOLUTIL is running. The system
prompt returns when VOLUTIL ceases.
_________________________________________________________________
3. Create a volume set by initializing the master volume. For
example, to create the volume set, BSET, with a master volume
named BVOL1 on ldev 21, enter:
volutil: NEWSET sname=BSET master=BVOL1 ldev=21
*Verify: Initialize new volume set BSET:BVOL1 on ldev 21 [Y/N] ? y
*Note: New master volume has been initialized on ldev 21.
4. Now use the MPE XL :DSTAT command within VOLUTIL to verify that
the system created the volume set and its master.
volutil: :DSTAT
LDEV-TYPE STATUS VOLUME (VOLUME SET - GEN)
----------- --------- ---------------------------
21-079350 MASTER BVOL1 (BSET- 0)
22-079350 LONER
23-079350 LONER
5. Use the volutil: NEWVOL command to add member volumes to the
volume set. Note that NEWVOL will initialize the volume if the
ldev number is supplied with the command. For example:
volutil: NEWVOL BSET:BVOL2 LDEV=22
*Verify: Initialize new member volume BSET:BVOL2 on ldev 22 [Y/N] ? y
*Note: New member volume has been initialized on ldev 22.
If no ldev number is supplied, the volume will be defined
as a member of the volume set but it will not be
initialized.
volutil: NEWVOL BSET:BVOL3
*Verify: Initialize new member volume BSET:BVOL3 [Y/N] ? y
*Warning: Volume only defined and not physically initialized.
6. The defined volume can be initialized using the INITVOL command.
volutil: INITVOL BSET:BVOL3 LDEV=23
7. Use :DSTAT again to verify that the volumes have been added with
member status.
volutil: :DSTAT
LDEV-TYPE STATUS VOLUME (VOLUME SET - GEN)
----------- --------- ---------------------------
21-079350 MASTER BVOL1 (BSET- 0)
22-079350 MEMBER BVOL2 (BSET- 0)
23-079350 MEMBER BVOL3 (BSET- 0)
8. To exit VOLUTIL, enter:
volutil:EXIT.
9. To create an account on the volume set, for example to create the
account MANUF and user MGR on the system volume set and give the
user particular capabilities, enter:
:NEWACCT MANUF,MGR;CAP=AM,SF,ND,CS,PH,IA,BA
10. Now to create the same account on volume set BSET.
:NEWACCT MANUF,MGR;ONVS=BSET
11. Log on to the new account.
:HELLO MGR.MANUF
12. Create a new group, for example, PROD. You will have to create it
twice, once on the system volume set and again on volume set BSET.
:NEWGROUP PROD;HOMEVS=BSET
:NEWGROUP PROD;ONVS=BSET
Volume Recognition
At system startup, all volumes spinning will be mounted automatically.
After the system is running, a pack may be spun up and, if previously
initialized, will be recognized and mounted automatically.
Data Availability
If a pack goes offline while the system is up and there are virtual pages
open on the pack, the Operator must mount the pack. I/Os are delayed
until Volume Management verifies that the pack is the same one that was
mounted before. Only the process accessing data on that pack will be
affected. Other processes will continue to run normally. This is a
convenient feature in the unlikely event of device failure.
MPE/iX 5.0 Documentation