Communicator e3000 MPE/iX Release 7.0 (Software Release C.70.00) > Appendix C Managing Disk Space

Using the ALTERVOL Command

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Use ALTERVOL to clear additional disk space for use during the modification (patch, add-on, update, or install) process. The ALTERVOL command sets the percentage of allowable use for each disk.

CAUTION: If you use the ALTERVOL command to increase the allowable percentage of use for LDEV 1, you MUST return the disk usage percentage back to its original settings after you perform the system modification. If you do not do this, you will not be able to reserve contiguous disk space in the future.

Log on to MANAGER.SYS.
```
  :HELLO MANAGER.SYS
```
Start VOLUTIL.
```
  :VOLUTIL
```
Show how much of the disk is currently in use. The following is a sample command and return output.
```
  VOLUTIL>SHOWVOL MPEXL_SYSTEM_VOLUME_SET:MEMBER1 VOLINFO

  Volume set index: 1
  Maximum permanent space: 75% (3970608 sectors).
  Maximum transient space: 75% (3970608 sectors).
```
Record the values listed in your output. You will need these values later to reset the disk usage percentage.

Set the usage percentage to maximum for LDEV 1, 90%.


  VOLUTIL>ALTERVOL mpexl_SYSTEM_VOLUME_SET: MEMBER1 90 10

Confirm the change with the system response.


  Verify: Set maximum PERMANENT to 90% and maximum TRANSIENT to 10%? [Y/N] _

Check the percentage usage again.


  VOLUTIL>SHOWVOL mpexl_SYSTEM_VOLUME_SET:MEMBER1 VOLINFO

A typical system response is:


  Volume set index: 1
  Maximum permanent space: 90% (4764730 sectors).
  Maximum transient space: 10% (529414 sectors).

Return to the procedure you were working on and continue with the instructions.
After completing the system modification, reset the disk space usage percentage back to the levels found in Step 3. Repeat the steps in this section using the original percentages.

CAUTION: You MUST reset the ALTERVOL values after you complete your system modification.
Refer to "Determining Available Disk Space" earlier in this appendix to determine is you have enough disk space to continue with your task.
If you 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 Alternative Disk Space Allocation."

Using the SHOWUSAGE Command

Using Alternative Disk Space Allocation

Using the ALTERVOL Command

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