# ODRT Requirements

The prerequisites for running the ODRT tool are as follows:

• Platform—The ODRT is currently supported in Red Hat Enterprise Linux 5.

• CPU— The little-endian CPU design is supported, such as the x86 family of microprocessors. It is recommended that you use a fast CPU.

• Memory— There is no specific limit and a memory of 1 GB to 2 GB would be sufficient.

• Disk Sizing— The disk should hold 1 terabyte of data.

• Fibre Channel (FC) connectivity to the tape drive should be present.

Databases need to have a well-defined and thoroughly tested backup and restore plan so that access to data is not at risk. The backup and recovery of databases involve the process of making a copy of a database in case of an equipment failure or disaster, then retrieving the copied database if needed.

This appendix explains how to back up and restore DCNM-SAN databases.

DCNM-SAN uses the PostgreSQL database management system as the default database. PostgreSQL databases are backed up with the pg_dump command. The pg_dump utility dumps the PostgreSQL database content to an ASCII dump file. The backup dump file represents a snapshot of the database at the time of backup.

The database is restored with the pg_restore utility. The pg_restore utility uses psql to rebuild the PostgreSQL database from the dump file created by pg_dump.

Note Oracle Database Servers are supported for Cisco DCNM and SME. The management, backup, and restoring of Oracle Databases is outside the scope of this document. For more information, contact your local Oracle DBA for a backup and restore plan of your Oracle Database.

For more information about pg_dump, go to this URL:

http://www.postgresql.org/docs/current/interactive/app-pgdump.html

• Database Backup and Restore Operations