Managing Media

Selecting Media for Backup

Media in poor condition are not used for backup. Media in fair condition are used only if no media in good condition are available. Media in good condition are sorted to use the one with the least number of overwrites first.

Media are always selected first from the specified pool and (optionally) from the free pool.

Table 4-2

How Media Are Selected for Backup

 

 

 

 

 

AllocationAllocateData Protector Selection Order

 

PolicyUnformatted

 

 

 

 

Media First

 

 

 

 

 

 

 

 

Loose

OFF

1.

Pre-allocation list (if specified)

 

 

 

2.

Appendable (as set in usage

 

 

 

 

policy)

 

 

 

3.

Unprotected Data Protector

 

 

 

 

media

 

 

 

4.

Unformatted media

 

 

 

5.

Fair media

 

 

 

 

 

 

Loose

ON

1.

Pre-allocation list (if specified)

 

 

 

2.

Appendable (as set in usage

 

 

 

 

policy)

 

 

 

3.

Unformatted media

 

 

 

4.

Unprotected Data Protector

 

 

 

 

media

 

 

 

5.

Fair media

 

 

 

 

 

 

Strict

(Not

1.

Pre-allocation list (if specified)

 

 

applicable)

2.

Appendable (as set in usage

 

 

 

 

 

 

 

policy)

 

 

 

3.

Unprotected Data Protector

 

 

 

 

media

 

 

 

4.

Fair media

 

 

 

 

 

Chapter 4

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