Configuring Volume Sets [ SPU Switchover/XL User's Guide ] MPE/iX 5.0 Documentation
SPU Switchover/XL User's Guide
Configuring Volume Sets
After system names and switchover pairs have been configured or removed,
you must define which nonsystem volume sets are to be switched over to
the alternate system when the home system is inoperative or which
nonsystem volume sets are to be removed from the SPU Switchover/XL
environment.
Adding Volume Sets
The AVOLSET command enables you to specify the home system for switchable
volume sets.
NOTE The SPU configurator must recognize the home system in order for
the command to function properly.
To display all volume sets on the home system and their identification
names, enter the DSTAT command at the home system's prompt:
: DSTAT Return
NOTE The system you are doing the configuration on, is the system where
all the switchable volume sets must be mounted.
The system responds by displaying the following information:
_________________________________________________________
| |
| LDEV-TYPE STATUS VOLUME (VOLUME SET - GEN) |
| _________ ______ _________________________ |
| 60-079371 MASTER-MD MASTER (order_volume_set-0)|
| 61-079371 MASTER-MD MEMBER1 (order_volume_set-0)|
| 62-079371 SCRATCH |
| 63-079371 SCRATCH |
| 66-OFFLINE LOCKED MASTER (mirr1-0) |
| 67-OFFLINE LOCKED MASTER (mirr1-0) |
| 70-079371 MASTER-MD MASTER (order_volume_set-0)|
| 71-079371 MASTER-MD MEMBER1 (order_volume_set-0)|
_________________________________________________________
Figure 2-2. Example DSTAT Command Display
To add volume sets to the configuration, ensure that you are logged on as
manager.sys and perform the following from the home (configuring) system:
1. Enter the SYSGEN utility:
: SYSGEN Return
2. Enter the SPU facility within SYSGEN:
sysgen> SPU Return
3. From the SPU facility use the AVOLSET command to identify and add
a volume set to the configuration. For example, to add volume set
A_DATA_SET to the home system named Alpha, enter the following
command:
spu> AVOLSET VOLSET=A_USER_VOL_SET HOME=ALPHA Return
_________________________________________________________________
NOTE When adding or deleting a volume set, ensure that you do not
add the generation number in the command line. If the
generation number is added to the command line, an error
message is displayed.
_________________________________________________________________
4. To ensure that all nonsystem volume sets have been added to the
configuration, enter the following:
spu> SHOW Return
The system responds by displaying the home system, alternate
system, and the volume sets that have been configured for SPU
Switchover/XL.
______________________________________________
| |
| spu> SHOW |
| |
| Home Alternate Volume Sets |
| ____ _________ ___________ |
| Alpha Beta a_user_vol_set |
| order2_volume_set|
| order3_volume_set|
| |
| Beta Alpha order1_volume_set|
| order4_volume_set|
______________________________________________
Figure 2-3. Example SHOW Command Display
5. Enter the following to retain the entries in the configuration
file:
spu> HOLD Return
spu> E Return
sysgen> KEEP Return
Keeping to group CONFIG.SYS
Purge old configuration (yes/no)? Y Return
** Configuration files successfully saved **
sysgen> E Return
All switchable volume sets must be mounted on the home (configuring)
system. If the system specified (in the AVOLSET command) is not a home
system (in a previous APAIR command), then the following message appears:
** Error ** Home system not defined in any system pair
Deleting Volume Sets
The DVOLSET command enables you to delete switchable volume sets from the
configuration. To delete volume sets from the configuration, ensure that
you are logged on as manager.sys, and perform the following from the home
or alternate systems:
1. Enter the SYSGEN utility:
: SYSGEN Return
2. Enter the SPU facility within SYSGEN:
sysgen> SPU Return
3. From the SPU facility use the DVOLSET command to identify and
delete a volume set (B_DATA_SET) from the configuration:
spu> DVOLSET VOLSET=B_DATA_SET Return
If B_DATA_SET is not assigned to a system, the following message
is displayed:
** Error ** Volume set not in configuration
4. Enter the following to retain the entries in the configuration
file:
spu> HOLD Return
spu> E Return
sysgen> KEEP Return
Keeping to group CONFIG.SYS
Purge old configuration (yes/no)? Y Return
** Configuration files successfully saved **
sysgen> E Return
MPE/iX 5.0 Documentation