Bacula-users

Re: [Bacula-users] LTO-4 Drive issues

2010-05-24 17:00:16
Subject: Re: [Bacula-users] LTO-4 Drive issues
From: Richard Scobie <richard AT sauce.co DOT nz>
To: bacula-users AT lists.sourceforge DOT net
Date: Tue, 25 May 2010 08:58:08 +1200
skipunk wrote:
>
> What would it take to clear up the network bottleneck.  I was looking at 
> another server that came with our gaming system. Same server (memory, hd, 
> etc) and tape library, running on win2k3 and netbackup with no issues. The 
> only difference is, it's running 4 nic's. So it's leaving me a bit baffled 
> that the only real difference is OS and 2 more nics and my system is 
> experiencing a bottle neck.

It's probably the extra 2 NIC's that are making the difference. Unless 
you can keep the tape drive and I think you mentioned more than one, 
continuously fed with data at better than 40MB or so a second, per 
drive, the tape stops, backs up and starts again and this has a huge 
impact on throughput due to the time taken for this cycle to complete. 
Once any initial spool is exhausted, the drive will just stutter along 
in bursts.

Regards,

Richard

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