- MIDAS requires a disk space of 55000 blocks to read the distributed
backup tape, plus 120000 blocks more for a complete installation with
all MIDAS packages available, on a single disk. This amount can be
reduced by using the 8 - Clean MIDAS option within the
CONFIGMIDAS procedure.
- Check that the commands DELETE and PURGE are not redefined
as DELETE/CONFIRM and PURGE/CONFIRM respectively.
- The installation of MIDAS uses the following logical names and symbols:
- MID_DISK to refer to the disk which contains the
MIDAS software.
- MIDASHOME defining the main directory for MIDAS.
- MIDVERS defining the current version.
These definitions are absolutely necessary for the subsequent steps!
For demonstration purposes let's assume that the disk for MIDAS
should be DBA2: and the directory under which you want to install
MIDAS is called SOFTWARE, then proceed as follows:
$ ASSIGN DBA2: MID_DISK:
$ MIDASHOME :== SOFTWARE
$ MIDVERS :== 95NOV
- The following libraries are device dependent. They are not included
in the tape but they must exist.
- LIBNAGB.OLB the NAG mathematical library.
- IP8LIB.OLB Interface DeAnza for IP 8000 series.
If they do not exist, INSTALLMIDAS can create an IP8LIB.OLB
empty library and a NAGLIB.OLB dummy library.
If they exist the operator should copy these libraries to the
MID_LIB directory or reassign their logical names in the
file MID_INSTALL:LIBDEF.COM.
- Then check the size of the system pagefile and swapfile plus some
system parameters (ask your system manager for assistance):
- PAGEFILE.SYS should have at least 25000 blocks
- SWAPFILE.SYS should have at least 18000 blocks.
- system parameter VIRTUALPAGECNT 60000 recommended.
- page file quota for the installation should be at least 40960.
- CPU limit. Set it unlimited for the MIDAS installation.
If the system files are not large enough you might get problems in compiling
some large programs (e.g. in the agl library directory...).
Use SYSGEN to check the value of the parameter VIRTUALPAGECNT.
This parameter should be set to a rather high value in order to
support the mapping of large images in MIDAS.
If you have to modify VIRTUALPAGECNT you must reboot the system after
having changed the value. NOTE: Do not forget to write the modified
parameter VIRTUALPAGECNT to disk (see the doc about SYSGEN)
otherwise the change is lost next time you reboot the system!
Use the command MC AUTHORIZE and subcommands SHOW and
MOD to check and modify the page file quota of
the account you are using when installing MIDAS.
