Alcatel-Lucent 7210 SAS M - Page 170

File Management Commands
Page 170 7210 SAS M, T, X, R6 Basic System Configuration
Image and Configuration Management
persist
Syntax persist {on | off}
Context bof
Description This command specifies whether the system will preserve system indexes when a save command is
executed. During a subsequent boot, the index file is read along with the configuration file. As a
result, a number of system indexes are preserved between reboots, including the interface index, etc.
This reduces resynchronizations of the Network Management System (NMS) with the affected
network element.
In the event that persist is on and the reboot with the appropriate index file fails, SNMP is
operationally shut down to prevent the management system from accessing and possibly
synchronizing with a partially booted or incomplete network element. To enable SNMP access, enter
the config>system>snmp>no shutdown command.
If persist is enabled and the admin save <url> command is executed with an FTP path used as the
<url> parameter, two FTP sessions simultaneously open to the FTP server. The FTP server must be
configured to allow multiple sessions from the same login, otherwise, the configuration and index
files will not be saved correctly.
Notes:
• Persistency files (.ndx) are saved on the same disk as the configuration files and the image files.
• When an operator sets the location for the persistency file, the system will check to ensure that
the disk has enough free space. If this there is not enough free space, the persistency will not
become active and a trap will be generated. Then, it is up to the operator to free adequate disk
space. In the meantime, the system will perform a space availability check every 30 seconds. As
soon as the space is available the persistency will become active on the next (30 second) check.
Default off
Parameters on — Create when saving the configuration.
off — Disables the system index saves between reboots.