Need your advice.

I had a scheduled monthly archive for a file server, data stored direct to
tape LTO4 with total size approx. 900GB, and it takes 26 hours!
I had try using NT backup for the same object, and it's just take 10 hours.
What's wrong with this TSM-tape performance? The aggregate rate is just
10MB/s.


My TSM server is Wind 2003 R2 SP2, TSM Client Win 2003 R2 SP2, LANFree.


Best Regards,


Yudi Darmadi
PT Niagaprima Paramitra
Jl. KH Ahmad Dahlan No.25  Kebayoran Baru, Jakarta Selatan 12130
Phone: 021-72799949; Fax: 021-72799950; Mobile: 081905530830
http://www.niagaprima.com

----- Original Message -----
From: "Marcel Anthonijsz" <marcel.anthonijsz AT GMAIL DOT COM>
To: <ADSM-L AT VM.MARIST DOT EDU>
Sent: Saturday, February 28, 2009 3:03 PM
Subject: Re: [ADSM-L] Tape performance (was: Re: Preferred TSM Platform)

I wrote a small script to collect the snmp data from the Brocade fibre
switches and put the data into Servergraph.
Next I created a report to graph the data and in that way we could see
historical data throughput and identified more than once a faulty tape
drive!
You definitely want to monitor your tape throughput!

For fiber-attached tape drives - use snmp to monitor the fiber switch

ports.

I use mrtg to acquire the data from my two tape-oriented SAN switches;

this feeds my hobbit (renaming, currently, to xymon) monitoring package. I
get > to see the activity for each tape drive (one per switch port) and
for
each TSM HBA (one per switch port - zoned to all tape drives, run as one
primary and > 4 alternates per switch).

Marcel