Backing Up Oracle - Computing at Cornell
Backing Up Oracle - Computing at Cornell
Backing Up Oracle - Computing at Cornell
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C.1.4 Synchroniz<strong>at</strong>ion utility (TDPOSYNC)<br />
This external executable allows the DBA to resolve discrepancies between an<br />
RMAN c<strong>at</strong>alog and the TSM server due to errors th<strong>at</strong> can occur during RMAN<br />
file deletion. Identifying and removing backups from the TSM server th<strong>at</strong> no<br />
longer exist in the <strong>Oracle</strong> c<strong>at</strong>alog frees up space on the server. The tdposync<br />
utility uses the tdpo.opt file for its options.<br />
C.1.5 Multi-buffering of d<strong>at</strong>a transfers<br />
TDP for <strong>Oracle</strong> introduces the option to turn on multi-buffering during<br />
backups, which can significantly increase poor performance due to network<br />
constraints. If you use this option, d<strong>at</strong>a buffers sent from RMAN are saved in<br />
internal TDP for <strong>Oracle</strong> buffers instead of being sent directly to the TSM<br />
server across the network. TDP for <strong>Oracle</strong> then starts a new thread, which<br />
picks up these internal buffers and sends them to the server. In this way,<br />
RMAN does not need to wait for each actual d<strong>at</strong>a transfer to be completed via<br />
the network before reading more d<strong>at</strong>a.<br />
C.1.6 LAN-free d<strong>at</strong>a movement<br />
TDP for <strong>Oracle</strong> supports LAN-free backup oper<strong>at</strong>ions, which shifts the<br />
movement of d<strong>at</strong>a from the communic<strong>at</strong>ions network to a storage area<br />
network (SAN). D<strong>at</strong>a moves over the SAN to a SAN-<strong>at</strong>tached storage device<br />
via the TSM Storage Agent. Running TDP for <strong>Oracle</strong> in a LAN-free<br />
environment decreases the load on the TSM server, allowing the server to<br />
support a gre<strong>at</strong>er number of simultaneous connections, and avoids<br />
constraints of the network. To enable LAN-free support, you must install the<br />
following applic<strong>at</strong>ions on the same system as TDP for <strong>Oracle</strong>:<br />
TSM Storage Agent<br />
TSM Managed System for SAN Storage Agent<br />
C.1.7 Migr<strong>at</strong>ion and coexistence<br />
Existing backups cre<strong>at</strong>ed using older versions of TDP for <strong>Oracle</strong> are<br />
restorable using TDP for <strong>Oracle</strong> Version 2.2.<br />
TDP for <strong>Oracle</strong> relies heavily on the tdpo.opt file for accuracy in setup and<br />
maintenance. The contents of the tdpo.opt file are different to the<br />
environment variables for TDP for <strong>Oracle</strong> Version 2.1;<br />
Version 2.1 RMAN scripts for environment variables are ignored.<br />
TSM Version 3.7 and above servers are supported.<br />
210 <strong>Backing</strong> <strong>Up</strong> <strong>Oracle</strong> using Tivoli Storage Management
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