Avaya Nortel Communication Server 1000 Manual page 88

88 Features
Maintenance Mode
When a Signaling Server is placed into Maintenance Mode, the allowable
maximum number of simultaneous firmware downloads increases.
Maintenance Mode enables the UFTP server to utilize most of its processing
resources to deal with the downloads.
The actual number of simultaneous downloads is determined by measuring
the CPU idle time, so each new firmware download session is launched if
there are less than 100 download sessions for the Signaling Server already
taking place and one of the following is true:
•
•
•
The UMS tries to launch a pending download session every 5 secondss.
When Maintenance Mode is enabled, call processing signaling could be impacted
by the UFTP download processes.
After Maintenance Mode is enabled, it can be exited in several ways:
•
•
•
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there are less than five download sessions currently active
Signaling Server is in regular mode (not in Maintenance Mode) and
its CPU usage is less than 85%
Signaling Server is in Maintenance Mode and its CPU usage is less
than 100%
manually, by using the uftpTurboMode "stop" command
automatically, after the Upgrade Manager is idle for MM minutes after at
least one download has been started
This prevents a time-out from occurring while the system is being
configured and the downloads start. After a download starts, if MM
minutes pass with no new firmware upgrade jobs starting, the normal
mode of operation resumes. The idle timeout timer is configured using
the uftpTurboModeTimeoutSet command.
automatically, after expiration of the Maintenance Mode period
Active firmware upgrade jobs are not cancelled when the Maintenance
Mode exits. No new jobs are added until the number of active jobs is
below the default value.
Maintenance Mode can be enabled only on the Signaling Server.
Maintenance Mode affects only Signaling Servers designated for
Maintenance Mode. This allows some Signaling Servers in the node
to operate in Maintenance Mode while others do not. The Signaling
Server is designated for Maintenance Mode with the uftpTurboMode
"on" command. The Maintenance Mode designation is saved and
maintained even if the Signaling Server is power-cycled or is rebooted.
Nortel Communication Server 1000
IP Line Fundamentals
NN43100-500 02.02 Standard
Release 5.5 4 February 2008
ATTENTION