DEFINITY Enterprise Communications Server Release 8.2
Upgrades and Additions for R8r
555-233-115 Issue 1
April 2000
Troubleshooting an Upgrade
B-7Troubleshooting Guidelines
B
The system links (SYS-LINK) maintenance object records all errors encountered
on the links. Most of these events are not extraordinary unless they oc cur with an
alarming frequency. The events are logged as they occur, leaving a “trail” to help
analyze abnormal behavior exhib ited by the end points attached to the li nks or
the links themselves.
When a link goes down, an alarm is raised im mediately. For EAL, INL, and PACL
link types a MINOR alarm is raised; for all other link types a WARNING alarm is
raised. Other alarming c onditions that do not c ause the link to go down get a
WARNING alarm, regardless of the link type.
Troubleshooting Guidelines
Before escalating a prob lem, try the troubleshooting p rocedures listed in this
appendix. Also try th e general troubleshooting p rocedures below.
1. Check the software compatib ility on the Software Release Letter. Be sure
the software that you are upgrading

from

is compatible with the s oftware
that you are upgrading

to

.
2. Check the Release 8 software tape (removable med ia) for defects. Type
test removable-media
UUCSS
long and press Enter, if you are using R8
software. If you are using R7 or prior software, typ e test tape
UUCSS
long
and press Ente r. If the tape (removable med ia) has errors, replace it.
NOTE:
Do not run the test removable-media short command, or the test
tape short command. This test cannot find all of the bad s ectors
that may be present on the tape (remova ble media).
3. If upgrading from G3V4 and earlier systems to a Release 8r, check the
vintage of the disk drive. The disk drive

must

be TN1657 Vintage 4 or later.
4. Always use the Software Release Letter that accompanies the software
tape (removable media). If the l etter is not available, use the app ropriate
chapter in this book.