library has two drives and a sustained data transfer rate of 6 MB/s (2 x 3 MB/s), or 21 GB/h. Therefore, data is backed up to this library in up to 5 hours. The projected amount of data in five years, 185 GB, would be backed up in 9 to 10 hours, which would still be within the acceptable 12 hours.

Cells D and E at ABC Pretoria share an HP StorageWorks DLT 4115w Library. This library has a single drive and a sustained data transfer rate of 3 MB/s, or

10.5GB/h. The total amount of data to be backed up in these cells is approximately 22 GB. This would be backed up in 2 to 3 hours. The projected amount of data in five years, 55 GB, would be backed up in 5 to 7 hours, which would be within the acceptable 12 hours.

Similarly, the 16 GB in cells F and G at ABC Durban would be backed up in up to 2 hours. The projected amount of data in five years, 40 GB, would be backed up in about 4 hours, which would be within the acceptable 12 hours.

The largest, 1.3 GB, Data Protector Catalog Database at ABC Pretoria should be backed up in a few minutes, when no database integrity checking is performed beforehand. Data Protector by default checks the integrity of the database before the database is backed up. The check operation takes less than an hour for a

1.3 GB database. Therefore, the IDB and configuration files at ABC Pretoria should then be backed up in under 2 hours.

Media Pools

Media are grouped into media pools to provide better media tracking and control. Media pools facilitate the management of large numbers of media, reducing the management effort of backup administrators to a minimum. Use the organizational structure and the systems categories criteria to define the following media pools:

Table 25 ABC’s Media Pool Usage

Media pool name

Location

Description

CT_SAP_Pool

Cape Town

SAP database server

CT_SQL_Pool

Cape Town

Microsoft SQL Server

CT_Exchange_Pool

Cape Town

Microsoft Exchange Server

CT_DB_Pool

Cape Town

IDB

P_DLT_Pool

Pretoria

HP StorageWorks DLT 4115w

 

 

Library

P_DAT_Pool

Pretoria

HP StorageWorks DAT24

 

 

autoloaders

Concepts guide

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HP B6960-96035 manual ABC’s Media Pool Usage, Media pool name Location Description, Concepts guide 325