Networker

Re: [Networker] compression or lack there of

2008-03-10 16:30:34
Subject: Re: [Networker] compression or lack there of
From: A Darren Dunham <ddunham AT TAOS DOT COM>
To: NETWORKER AT LISTSERV.TEMPLE DOT EDU
Date: Mon, 10 Mar 2008 20:25:22 +0000
> I have LTO-1, LTO-2 and LTO-3 drives.  We also use client side
> compression to save LAN traffic, disk space (on advanced file devices)
> and data passing trough the hosts and SAN while cloning.
>
> One thing that these drives do to keep streaming, is to write some
> filler in if the in-coming data is not fast enough.  I do not know
> what the parameters of this process, but it causes more tape to be
> used while writing the same amount of data.

Do you have any references for this?  I know of some older drives that
would disable compression (but not write filler) to try to keep
streaming rates up.  But I've never seen documents that suggest LTO
models do anything similar.

-- 
Darren Dunham                                           ddunham AT taos DOT com
Senior Technical Consultant         TAOS            http://www.taos.com/
Got some Dr Pepper?                           San Francisco, CA bay area
         < This line left intentionally blank to confuse you. >

To sign off this list, send email to listserv AT listserv.temple DOT edu and 
type "signoff networker" in the body of the email. Please write to 
networker-request AT listserv.temple DOT edu if you have any problems with this 
list. You can access the archives at 
http://listserv.temple.edu/archives/networker.html or
via RSS at http://listserv.temple.edu/cgi-bin/wa?RSS&L=NETWORKER