HP e3000 MPE/iX System Software Maintenance Manual (Release C.75.00) > Appendix C Managing Disk Space

Using the SHOWUSAGE Command

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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:

Return to the ISL prompt. Enter the following to start the system from the disk:
```
  ISL> START NORECOVERY
```
When the system is up, log on as MANAGER.SYS:
```
  :HELLO MANAGER.SYS
```
Run the VOLUTIL utility to gain access to the SHOWUSAGE command:
```
  :VOLUTIL
```
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.
Exit VOLUTIL:
```
  VOLUTIL> EXIT
```
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.
When you have the required amount of contiguous disk space, build an empty file in PUB.SYS to reserve the space:
```
  :BUILD AXLDEV1.PUB.SYS;DISC=n,1,1;DEV=1
```
Where n is the amount of contiguous disk space required anywhere on the LDEV1 of your system. And
```
  :BUILD AXLDEV1.PUB.SYS;DISC=n,1,1;DEV=**$system_master
```
Where n is the amount of contiguous disk space required within the first 4 GB of LDEV1 of your system and if you are currently running MPE/iX 7.5 (C.75.00) or later.
Refer to "Determining Available Disk Space" earlier in this Appendix to determine if you have enough disk space to continue with your task.
If you do have enough disk space, return to the procedure you were working on and continue with the instructions.
If you do not have enough disk space, proceed to "Using the ALTERVOL Command."

Recovery from "Out of Disk Space" during Update

Using the ALTERVOL Command

Using the SHOWUSAGE Command

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