ADSM-L

Domino TDP backups to LTO2

2004-10-13 09:33:54
Subject: Domino TDP backups to LTO2
From: Zoltan Forray/AC/VCU <zforray AT VCU DOT EDU>
To: ADSM-L AT VM.MARIST DOT EDU
Date: Wed, 13 Oct 2004 09:33:43 -0400
I have been experimenting with doing Domino backups directly to LTO tape.

We are trying to do this since in the future, our Domino systems will
expand to address 40,000+ ID's and 3-6TB of storage that will need to be
backed up (no clue how much on a daily basis but weekly will be big due to
the "reorgs").

My first experiment seems to indicate that this is a bad idea due to the
TDP process open/closing the tape for every Domino "mail box" it backs
up........

Or am I interpreting these log entries, wrong:

10/12/2004 10:24:43 PM ANR8337I LTO volume 090024 mounted in drive
LTO-DRIVE2 (/dev/rmt0).
10/12/2004 10:24:44 PM ANR0511I Session 30861 opened output volume 090024.
10/12/2004 10:25:46 PM ANR0514I Session 30861 closed volume 090024.
10/12/2004 10:25:49 PM ANR0511I Session 30861 opened output volume 090024.
10/12/2004 10:25:53 PM ANR0514I Session 30861 closed volume 090024.
10/12/2004 10:25:59 PM ANR0511I Session 30861 opened output volume 090024.
10/12/2004 10:26:01 PM ANR0514I Session 30861 closed volume 090024.
10/12/2004 10:26:02 PM ANR0511I Session 30861 opened output volume 090024.
10/12/2004 10:26:06 PM ANR0514I Session 30861 closed volume 090024.
10/12/2004 10:26:07 PM ANR0511I Session 30861 opened output volume 090024.
10/12/2004 10:26:09 PM ANR0514I Session 30861 closed volume 090024.
10/12/2004 10:26:10 PM ANR0511I Session 30861 opened output volume 090024.
10/12/2004 10:26:12 PM ANR0514I Session 30861 closed volume 090024.
10/12/2004 10:26:15 PM ANR0511I Session 30861 opened output volume 090024.
10/12/2004 10:26:17 PM ANR0514I Session 30861 closed volume 090024.

<snipped a lot more of these !>

Is this a hopeless cause ?

Are there any future plans to greatly improved the Domino TDP to take
advantage of things like large TCPWINDOWSIZE and such to improve data
transfer ?

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