I need to improve performance of a Job which backups 1500000 files (mail
and File Server).
I was compressing the files on disk in some tgz files first (tar and
gzip) ,then backuping then on tape with Bacula, i was getting about:

Job write elapsed time = 00:32:16, Transfer rate = 44.93 M Bytes/second


Because disks space constraints i have to delete the compressed files on
disk and backup direct to tape, then i am getting about:

Job write elapsed time = 03:56:37, Transfer rate = 11.71 M Bytes/second


I think i am getting worst performance because of ramdon disk access
speed, is that true?

The Tape (LTO4) and Bacula Storage Daemon and Director are on different
server than the file and mail server i am backuping up.

Could someone has some suggestions about improving speed from Bacula or
from filesystem tuning?

Does Bacula software compression might help on this?

I Have a HP E200 SAS Disk Controller with 512MB (with Battery Write
Cache) in a Raid 5 LVM (File and Mail Server).

Thanks in advance for your advices,

-- 

Andrés Fernando Yacopino

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