Communicator e3000 MPE/iX Release 7.5 (Software Release C.75.00) (30216-90336)

Chapter 5
Technical Articles
Support for Using the Entire Disk Space on LDEV 1
111
where n is the number determined in “Estimating Disk Space” as given in the MPE/iX System Maintenance
Manual.
For 7.5 the above equation needs to be changed to:
: BUILD AXLDEV1;DISC=n,1,1;DEV=**$SYSTEM_MASTER
WARNING In case the requested space is not available within the 4GB, an error indicating out
of space is returned (even if enough space is available beyond the first 4GB) when
creating this file.
OUT OF DISK SPACE (FSERR 46)
To make more space within 4GB, read the section “Freeing Space within 4GB”
;DEV=1
For user files, (i.e., for non-system files) HP recommends that these files be stored in private volumes. In cases
where user files are stored in LDEV 1, use ;DEV=1. By specifying ;DEV=1 during creation, the system attempts
to create/store the files beyond 4GB. If the required space is not available in the area beyond 4GB, the system
creates/stores the files within the first 4GB of the disk.
Freeing Disk Space within 4GB
During system update or other activities that create files on LDEV 1, you may receive OUT OF DISK SPACE
(FSERR 46) errors. Even when the discfree utility shows plenty of free space, you may need to free disk
space within the first 4GB of LDEV 1 to enable system files to reside there. The following method can be used
to free the disk space:
To identify where files are stored on LDEV 1, use the SHOWUSAGE command in VOLUTIL:
VOLUTIL:SHOWUSAGE 1;PERM;FORMAT=DETAIL
PERM Space on LDEV 1:
processing ...
SECTOR ADDRESS SIZE (in sectors) SPACE_USED_BY
-------------- ------------------ -------------
48 96 MMSAVE.MPEXL.SYS
14128 32 MPEXLDIR.PUB.SYS
14160 320 ISL.MPEXL.SYS
14480 53904 START.MPEXL.SYS
68384 25120 DISCUTIL.MPEXL.SYS
The sector address of 4GB is 16777216. Any user file having an address lower than this number is a potential
candidate to be moved beyond the first 4GB of disk space.
Once the files are identified, you may use the following set of commands to move the files beyond 4GB:
File t;dev=disc
Store <files>;*t
Restore *t;<files> (use the ;olddate option to retain dates before the STORE)
Generally, the files loaded at ISL > are the files that MUST reside within 4GB. The list of such files can be
obtained at the ISL prompt using the LS command.
ISL> LS
ISL START DISCUTIL SAT DUMP STAGEISL
A1002AI A1002AM A1002AP EDBC EDPROC MDIAG
MPROC ODE ODEDATA ODEDATA2 TDIAG UNIPROC
BCDIAG CAEXR XMAP CLKUTIL SADPATCH AUTOBOOT