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

Using Alternative Disk Space Allocation

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Before starting UPDATE, reserve contiguous disk space in the file AXLDEV1.PUB.SYS. This amount is at least 60,000 sectors but may be larger. The prudent way to reserve this space is in one contiguous block. Reserving this space in more than one block introduces a risk that Secondary Storage Manager (SSM) will allocate space for files on LDEV 1 in a way that causes an "Out of contiguous disk space" condition during UPDATE. Always try to reserve this contiguous disk space for UPDATE in one block.

However, if you cannot reserve all the disk space in one file on LDEV 1, the additional disk space required beyond 60,000 sectors can be reserved in large contiguous sectors. The minimum size of any contiguous sector piece must be 30,000 sectors.

NOTE: Consult your HP Representative or the Response Center before you use this method to allocate disk space. Your operating system is at risk of LDEV1 overflow while running. Performance will be impacted. The operating system requires room to work. If it does not have enough, the resource manager will start to shut your system down.

To reserve disk space sectors in sections:

For each section of 60,000 to 30,000 sectors:
```
  :build axldev1 disk = 60000
  :build axldev2 disk = 30000
  :build axldevn disk = 30000
  . . .
```
The minimum number of sectors for at least one section is 60,000. All other sections must be at least 30,000 sectors each.

Purge each axldev file you created. For example:


  :purge axldev1
  :purge axldev2
  :purge axldev3

During the UPDATE, you will receive a disk space error message. Select OVERRIDE at the disk space warning to continue with the process.


  WARNING: UPDATE tried to find 60,000 sectors of contiguous disk
  space on LDEV1 for its work, but it could only find nnnnnnn
  sectors. Before continuing, refer to the Installation Manual for
  instructions on collecting enough contiguous space on LDEV1 for
  the update. If you still have questions after attempting the
  procedures outlined in the manual, call your HP support
  representative for help.
  
  You may override this warning and continue with the update, but
  HEWLETT-PACKARD STRONGLY DISCOURAGES THIS COURSE OF ACTION.
  
  DO NOT override this warning unless you have a full backup
  available and the time to REINSTALL your system. If UPDATE runs
  out of space on LDEV1, you risk having to REINSTALL.
  
  Override this warning message [OVERRIDE/NO; default = NO]?

Return to the procedure you were working on and continue with the instructions.

Using the ALTERVOL Command

Appendix D Backdating Your System

Using Alternative Disk Space Allocation

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