Gerhard den Hollander wrote:
>
> I noticed when looking through the logs that the *dumper* performance is
> around the 1Kps (or less) on my system ,
> whereas the *taper* gets a performance of about 7 Kps.
>
> So apparently it's not the speedn of my tapedrive that's the bottleneck,
> but soemthing within amanda.
>
> I have now turned compression off and im hoping this will imporve matters.
>
> Are there any other ways to tweak amanda.conf to improve dumper performance
Best of luck finding your current bottleneck.
I never got the bandwidth setting corect on my setup so I have a LOT of
different dump-types with different maxdumps and dumpcycle settings.
I've got 36Gb of holding disk and a single 50Gb AIT-2 drive. One of the
18 machines I'm backing up has a 36Gb drive with 30Gb of already gzipped
data on it. I work to keep the full backups of that drive confined to
weekends.
My backup host is a Dell Precision 610 with 2 SCSI cards. I'm going to
move the tape drive to the internal controlled since my holding disks are
one the external one. Maybe I'll pick up some speed there.
The holding disk is 4 9Gb drives striped with software RAID. I formatted
for large block sizes and few inodes to improve large file performance.
I'm running RedHat Linux 6.2 with kernel 2.2.16-8. Machine's got a single
500MHz Xeon CPU and 256Mb RAM. I know a faster CPU will help during the
gzip phase. Will more RAM?
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