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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. Start 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
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Volume set index: 1 Maximum permanent space: 75% (3970608 sectors). Maximum transient space: 75% (3970608 sectors).
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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
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Confirm the change with the system response. Verify: Set maximum PERMANENT to 90% and maximum TRANSIENT to 10%? [Y/N] _
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Check the percentage usage again. VOLUTIL>SHOWVOL mpexl_SYSTEM_VOLUME_SET:MEMBER1 VOLINFO
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A typical system response is: Volume set index: 1 Maximum permanent space: 90% (4764730 sectors). Maximum transient space: 10% (529414 sectors).
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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."
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