HP e3000 MPE/iX System Software Maintenance Manual (Release C.75.00) (30216-90344)

Appendix D
Backdating Your System
Planning Your Backdate
198
Check for Disk Space
Ensure you have sufficient disk space to backdate your system.
Refer to “Estimating Disk Space” in Chapter 3, “Planning for Your Task,” and Appendix C, “Managing Disk
Space,” for additional information about these steps.
1. Reserve contiguous and non-contiguous disk space. If you are currently running MPE/iX 7.5 (C.75.00) or
later:
:BUILD AXLDEV1;DISC=n,1,1;DEV=1
:BUILD AXLSPACE;DISC=m,32,32
else
:BUILD AXLDEV1;DISC=n,1,1;DEV=1
Next
:BUILD AXLSPACE
where:
n AXLDEV1 number, determined in Chapter 3, “Planning for Your Task,” or use the default
of 120,000 sectors.
m AXLSPACE number, use the maximum value 1,084,000
If a colon (:) prompt is returned. The files were built and you have enough disk space.
If you receive a message: Out of disk space, in case of the build AXLDEV1, you need to make more
space within the first 4GB of LDEV1.
2. Purge the AXLSPACE file. The AXLDEV1 file is automatically purged by the UPDATE tool.
:PURGE AXLSPACE
3. If you do not have enough disk space, either contiguous (AXLDEV) or non-contiguous (AXLSPACE):
• Store files to tape. Purge the stored files from the system.
• Purge the files and groups as directed in Steps 8 through 10 of the next section, “Securing Your
System.”
• Refer to Appendix C, “Managing Disk Space,” for directions on clearing space.