Communicator 3000 MPE/iX Release 6.0 (Platform Software Release C.60.00) (30216-90269)
28 Chapter 2
System Information and Preparation
Planning Your Move to MPE/iX Release 6.0
NOTE The disk space values listed in this section are estimated values only.
The actual amount of disk space used on your system will vary.
Non-Contiguous Disk Space Estimates
The following table lists the amount of non-contiguous disk space
sectors required for the three operating system components (SLT, FOS,
and SUBSYS) of the currently supported versions of the operating
system software. During the modification process, some files are
duplicated temporarily, sometimes older versions of files are retained
temporarily. This causes the peak amount of disk space usage to be
greater than the net amount when the modification is complete.
You must have the peak amount of disk space available on your system
during the process to successfully modify your system.
The combined System Load Tape (SLT) and Fundamental Operating
System (FOS) are the minimum net requirements for any system
software version level. Ensure that you have enough room on LDEV1
for all the SLT files. The FOS files do not have to go on LDEV 1.
Table 2-2 Disk Space Requirements in K Sectors for Supported Releases
To estimate the amount of additional permanent (net), non-contiguous
disk space required to update your system software, subtract the value
of your current version from the value of the version to which you are
updating.
The values listed for the SUBSYS (purchasable subsystem products)
are the maximum possible. This value is the total disk space sectors
required for all possible purchasable products. You may have ordered
only selected SUBSYS products.
System
Software
Components
Disk Space in K Sectors for Version Level
5.0
5.5 6.0
Peak Net Peak Net
SLT only * 1,318 n/a 1,268 n/a 1,274
SLT and FOS 2,027 2,378 2,092 2,821 2,533
SLT, FOS,
SUBSYS
3,226 3,637 3,170 3,926 3,489
* Provided for reference only. An operational system requires the
SLT and FOS files at a minimum.