Amanda-Users

Re: Blocksizes and tapebufs

2008-01-18 14:12:25
Subject: Re: Blocksizes and tapebufs
From: Ian Turner <ian AT zmanda DOT com>
To: sgw AT amanda DOT org
Date: Fri, 18 Jan 2008 14:06:40 -0500
On Friday 18 January 2008 13:11:35 Stefan G. Weichinger wrote:
> Any suggestion for the new parameter device_output_buffer_size,
> especially with the DLT8000?

There are a lot of factors involved in the choice of this parameter (speed and 
latency of CPU, memory, system bus, holding disk, scsi bus, tape device, and 
more), so I can't give you a number. But I can say:
- Bigger numbers will take up more memory, but never make things slower 
(unless you run out of RAM!)
- The default of 1280kb should be adequate unless there is a big difference in 
speed between the holding disk and tape device.

Cheers,

--Ian
-- 
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