Hello everyone,
using bacula 5.0.3. on a x64 SuSE we do our backups to disk, keep them
there for 2 months und then migrate them to tape.
Migration is done to LTO-5 Tapes on a Dell TL-4000 changer with a single
drive.
When installing the library I didn't care too much about performance so
I didn't specify any block-size expressions in the device resource (as
suggestet in the manual).
We do our migrations with a 50-70 MB/s data-rate which is OK for us but
quite low for LTO-5. Our hdd-subsystem can deliver data-rates of obout
200 MB/s (testet with different performance-tools). To improve
performance of the tape drive I'd like to heighten the maximum block size.
My question is: Will bacula be able to read the already written tapes
after the block-size-change?
Any advice would save me a lot of testing time.
Thanks for your help.
--
Mit besten Grüßen / Kind Regards
Jens-Uwe Mohn
IT System Management
g/d/p Marktanalysen GmbH
Ein Unternehmen der Forschungsgruppe g/d/p
Richardstr. 18
D-22081 Hamburg
Fon: +49 (0)40 / 29876-170
Fax: +49 (0)40 / 29876-127
mohn AT gdp-group DOT com
www.gdp-group.com
Sitz der Gesellschaft ist Hamburg, Handelsregister Hamburg, HRB 37830
Geschäftsführer: Christa Braaß, Volker Rohweder, Clemens Steckner
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