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Re: [Bacula-users] LTO-4 tape: only 20mb/sec when used with bacula
2010-06-21 06:57:00
2010/6/20 Lukas Kolbe <l-lists AT einfachkaffee DOT de>
Hi!
Hi,
We use a Tandberg autochanger with two IBM Ultrium LTO-4 drives behind a
24-disk RAID50. When used with with testdata and dd or tar (in dd's case
with bs=1M), both drives get acceptable rates of around 170MiB per
second. However, when used with bacula for a copy job (Our default pool
is the diskpool, the jobs get copied to tape during the day), only
20MiB/second get written to the tape, while bacula-sd consumes a full
cpu.
Regards,
Lukas
Regards
Radek
Radosław Korzeniewski
radoslaw AT korzeniewski DOT net
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