Split: Difference between revisions
Jump to navigation
Jump to search
m (Added link to "dump") |
(highlight new parameters, talk about caching) |
||
| Line 1: | Line 1: | ||
{{Glossary Entry}} | {{Glossary Entry}} | ||
A [[dump]] can be split across multiple tapes. First, [[Span|spanning]] must be enabled. Then you may specify <tt>tape_splitsize</tt>, <tt> | A [[dump]] can be split into [[part|parts]] and written across multiple tapes. First, [[Span|spanning]] must be enabled. Then you may specify the part size with the <tt>part_size</tt> parameter in the [[tapetype]] in {{man|5|amanda.conf}}, or with the <tt>tape_splitsize</tt> parameter in Amanda-3.1 and earlier. | ||
Sometimes splitting requires caching, enabling Amanda to re-write a part that was not successfully written. This caching can be done in memory or on disk. In many cases, a cache is not required because the data is already available in holding disk. The <tt>part_cache_type</tt>, <tt>part_cache_dir</tt>, and <tt>part_cache_max_size</tt> tapetype parameters control this behavior. | |||
Revision as of 18:47, 18 July 2010
A dump can be split into parts and written across multiple tapes. First, spanning must be enabled. Then you may specify the part size with the part_size parameter in the tapetype in amanda.conf(5), or with the tape_splitsize parameter in Amanda-3.1 and earlier.
Sometimes splitting requires caching, enabling Amanda to re-write a part that was not successfully written. This caching can be done in memory or on disk. In many cases, a cache is not required because the data is already available in holding disk. The part_cache_type, part_cache_dir, and part_cache_max_size tapetype parameters control this behavior.