Il 19/12/2011 17:32, gary artim ha scritto: > Thanks for the advice, _most_ responsive list I belong to! cheers! gary > > 2011/12/19 Radosław Korzeniewski <rados...@korzeniewski.net>: >> Hello, >> >> 2011/12/16 gary artim <gar...@gmail.com> >>> >>> No, just Spool Attributes = yes. g. >>> >> >> A "direct" backup from FD into a SD tape device is performed with a little >> buffering and require more computation, disk seeks and context switching. It >> is a single, complicated chain with two threads one for FD and one for SD >> connected through logical network layer (even when a full backup is >> performed on local machine). With this chain it is very hard to get a full >> LTO speed. As opposite when you perform SD data spooling, you can easy >> achieve a full LTO speed because a writing chain (despooling) in SD is very >> simple and effective. Unfortunately doing a data spool takes a long time and >> slow down an overall backup speed. >> >> best regards >> -- >> Radosław Korzeniewski >> rados...@korzeniewski.net
Would be curious to know if data spooling made any difference... Cheers! -- Marcello Romani ------------------------------------------------------------------------------ Write once. Port to many. Get the SDK and tools to simplify cross-platform app development. Create new or port existing apps to sell to consumers worldwide. Explore the Intel AppUpSM program developer opportunity. appdeveloper.intel.com/join http://p.sf.net/sfu/intel-appdev _______________________________________________ Bacula-users mailing list Bacula-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/bacula-users
