Problem Description

Why is the configuration lost after a power down or hard reset of newly issued configuration data for OSN2500 devices

Warning message

None

Processing

The database of OSN product has mdb/drdb/fdb0/fdb1, mdb is in memory, drdb is in reserved memory area, fdb0 is in flash1 and fdb1 is in flash2. Database information is written to mdb and drdb in real time, and backed up to flash at regular intervals, once every half hour by default, the period can be set. The newly issued configuration can be restored from drdb after no power down or soft reset; if power down and reset, but the operation of regular backup to flash has not been executed, the newly issued configuration will be lost after reset.

Supplementary note:

1, the main control board has 1M in NVRAM, but NVRAM is not used to save database.

2, because the host configuration data will be sent down to the single board after the successful verification, so the loss of host configuration will cause inconsistency of the host single board configuration data.

3、Evasion measures: manually issue the command to backup database to flash before power-down reset

dbms-copy-all:drdb,fdb0 and dbms-copy-all:drdb,fdb1

Root cause

None