Installation guide

B
Installing an SF3x-HK and SF7x-UK
Upgrade Kit
This appendix describes how to install the SF7x-UK and SF3x-UK upgrade
kits while the host system and the disk ISEs storage enclosure are off-line.
Refer to Section B.1 for instructions on how to take a disk ISE off-line.
To ensure the integrity of the host system, follow the steps in this procedure in
order and exactly as instructed.
Note
You must upgrade the two-drive SF7x-HK storage enclosure to contain
four drives before adding any other SF7x storage enclosures on that
bus of the DECarray.
Only one SF7x-HK storage enclosure can exist in a DECarray at one
time.
The following procedure assumes that the DECarray, and the SF7x storage
enclosures and magazine tape ISEs in the array, have been correctly installed
and configured.
Locate the system configuration sheet and ensure that it is filled out properly.
If the system configuration sheet reflects a configuration other than what is
recommended in this guide, you must maintain that particular configuration
throughout this procedure and work to ensure that no two devices on a DSSI
bus have the same DSSI ID number.
If this upgrade is to be followed by the installation of another SF7x storage
enclosure, a magazine tape ISE, or both, the host system must be brought
down according to the system documentation.
Installing an SF3x-HK and SF7x-UK Upgrade Kit B–1