[2561] in SIPB-AFS-requests
Re: DLT drive
daemon@ATHENA.MIT.EDU (Charles M. Hannum)
Mon Nov 25 19:09:55 1996
To: Jonathon Weiss <jweiss@MIT.EDU>
Cc: sipb-afsreq@MIT.EDU, sipb-office@MIT.EDU
From: mycroft@gnu.ai.mit.edu (Charles M. Hannum)
Date: 25 Nov 1996 19:09:32 -0500
In-Reply-To: Jonathon Weiss's message of Mon, 25 Nov 1996 18:08:43 EST
Jonathon Weiss <jweiss@MIT.EDU> writes:
>
>
> I remember that around the time SIPB bought the DLT drive, there was
> some discussion of the fact that it was not streaming. In the last
> few weeks ASO has moved some of its DLT drives onto a Solaris (2.3)
> sun for use with non-AFS backups. Teh drive was very slow (much
> slower than an exabyte) until the following lines were added to
> /kernel/drv/st.conf:
>
> tape-config-list = "Quantum DLT4000", "Quantum DLT4000", "DLT-data";
> DLT-data = 1, 0x26, 0x4000, 0x19, 4, 0x83, 0x82, 0x81, 0x80, 3;
I forget the exact numbers, but I made similar changes when we first
got the drive. This was necessary even to use the high-capacity
compressed modes.
The problem with our backups is really network bandwidth, though.
