Amanda-Users

Re: why is tapetype so slow?

2003-01-14 17:18:19
Subject: Re: why is tapetype so slow?
From: Eric Sproul <esproul AT ntelos DOT net>
To: Amanda Users <amanda-users AT amanda DOT org>
Date: 14 Jan 2003 16:42:35 -0500
On Tue, 2003-01-14 at 15:48, Eric Sproul wrote:
> The Compaq SDLT320 is rated at 16 MB/s native, but with SDLT 110/220
> tapes, I'm assuming the speed will drop back to that of the SDLT220
> drive, which is 11 MB/s.

I was wrong about this.  I checked a bit further on the drive, and it
turns out that the SDLT320 drive uses the same media (SDLT1) and just
writes at a higher density to pack 160GB into a tape, so I really should
be estimating for 160GB uncompressed, and 16 MB/s sustained transfer
speed.

This still works out to the same 2h50m time: 163840 MB / 16 MBps.

Eric


<Prev in Thread] Current Thread [Next in Thread>