Installation manual

Section 5 F Upgrading Software on Client-Server Systems

Installing and Upgrading ENVOX

Configuration Software on DEC VAX and DEC AXP Systems (Revision B — May 1998)

5.1.4 Considerations for Using th e PDX Utility

The following items are important points to consider before proceeding

with the client-server upgrade:

J SYBASE software already existing on your system and all of the

database information will be completely deleted. The PDX dump

method is the only way of saving your database information.

J The existing login.com will be saved away as old_login.com in the

top level SYBASE directory. All other SYBASE files will be deleted.

J The data in your ENVOX and OPENDB databases can be dumped

with the PDX utility. Data in other databases may or may not be

dumped with the PDX utility. See section 11 for a description of using

this utility for non-ENVOX databases.

J Make sure that you list the database statistics for the ENVOX

databases before proceeding with the installation. The list will give

the data and log distribution for the databases along with the

estimated PDX file size.

J For the upgrades from P2.x,P3.0, P3.2 and P3.3, you must initiate

the PDX utility from the command line. When the data from all

databases has been PDX dumped, de-install SYBASE and ENVOX

and proceed with the installation for the P2.x and P3.0 upgrades

through the installa tion menu system.

J For the upgrade from P3.4, you normally can run the PDX utility from

the ENVOX menu syste m to PDX dump data from ENVOX and

OPENDB databases. However, if you have more than sixteen

ENVOX and OPENDB databases, you must run the PDX utility from

the command line.

J For PDX dump to a tape, make sure that a pre-initialized tape has

been mounted. A tape can be initialized by inserting the tape in a

tape drive and entering the following command at the DCL prompt:

$ init tapedrive: tape/override=expiration

where tapedrive is the name of your tapedrive.

J Only dump one database per tape to avoid exceeding the tape

capacity. The tape capacity is the amount of data in Mbytes which

will be written to tape before the PDX dump will stop and ask for the

next tape. Mark the tapes and keep them safe; they will be needed

later to load the dumped data to recreated databases.

J Before PDX dumping to disk, make sure that there is enough disk

space for the PDX dump. The estimated PDX file size from the

database statistics list can help you determine the required disk

space.