HP e3000 MPE/iX Release 6.5 System Software Maintenance Manual (30216-90325)
Appendix C 211
Managing Disk Space
Using the SHOWUSAGE Command
Using the SHOWUSAGE Command
After you have updated your system to Release 5.0 or later, you should no longer use the
CONTIGXL utility to locate contiguous disk space on LDEV 1. Instead use the SHOWUSAGE
command in the VOLUTIL utility. SHOWUSAGE provides the same information as CONTIGXL.
To locate contiguous disk space using VOLUTIL:
1. Return to the ISL prompt. Enter the following to start the system from the disk:
ISL> START NORECOVERY
2. When the system is up, log on as MANAGER.SYS:
:HELLO MANAGER.SYS
3. Run the VOLUTIL utility to gain access to the SHOWUSAGE command:
:VOLUTIL
4. Enter the following SHOWUSAGE command to identify files with extents on LDEV 1:
VOLUTIL> SHOWUSAGE 1 60000 NONRESTRICT SUMMARY;PERM;FREE
This command displays the groups of files that can be removed from LDEV1 and the
total amount of contiguous disk space you can reserve by removing those files.
In the command, the 1 indicates the logical device on which the volume to be examined
is mounted. The value 60000 is the amount of contiguous disk space that is needed (in
sectors). You can use the estimated amount or run CHECKSLT to determine how much
contiguous disk space is required to update your system. Refer to “Estimating Disk
Space” in Chapter 3 , “Planning for Your Task.”
The NONRESTRICT option displays only those files that are not restricted to this volume.
The SUMMARY option displays that are associated with permanent space.
NOTE
SHOWUSAGE may list more than one group of files that can be purged. Select
one group in the list and store then purge that group to locate the required
number of sectors.
5. Exit VOLUTIL:
VOLUTIL> EXIT
6. Store and purge the selected group of files:
:FILE T;DEV=TAPE
:STORE file.group.account,file1.group.account;*T;PURGE;SHOW
NOTE
If you used SHOWUSAGE and still have trouble creating this disk space, contact
your support representative.
7. When you have the required amount of contiguous disk space, build an empty file in
PUB.SYS to reserve the space: