ADSM-L

AW: fs backup versus database backup

2003-03-12 12:29:54
Subject: AW: fs backup versus database backup
From: "Rupp Thomas (Illwerke)" <thomas.rupp AT ILLWERKE DOT AT>
To: ADSM-L AT VM.MARIST DOT EDU
Date: Wed, 12 Mar 2003 18:29:25 +0100
Hi Ruud,

to which storagepools do you move your data (disk, tape)?

Your FS backup gives you the network data transfer rate, whereas the
DB backup gives you a number including network data transfer rate, 
tape mount/unmount times etc.

Do a QUERY NODE nodename F=D and you will see what the session is
waiting for
   Pct. Idle Wait Last Session: 3.33
  Pct. Comm. Wait Last Session: 0.00
  Pct. Media Wait Last Session: 0.00

Kind regards
Thomas Rupp
Vorarlberger Illwerke AG

-----Ursprüngliche Nachricht-----
Von: Van Ruler, Ruud R SITI-ITDGE41 [mailto:ruud.vanruler AT SHELL DOT COM] 
Gesendet: Mittwoch, 12. März 2003 18:16
An: ADSM-L AT VM.MARIST DOT EDU
Betreff: fs backup versus database backup


Hi

FS backup:
 Network data transfer rate:        56,265.13 KB/sec i.e. 56Mb/sec
starttime 02:30 endtime 02:55
ANE4961I (Session: 4073, Node: RYSAP380)  Total number of
                       bytes transferred:   396.77 MB


Database backup:
BKI1215I: Average transmission rate was 97.247 GB/h (27.661 MB/sec).
starttime 20:00  endtime 23:40
BR061I 471 files found for backup, total size 360069.555 MB

Both backups go over Gb links
Why FS backup faster than DB backup , i would expect the other way around ??


Ruud van Ruler, Shell Information Technology International B.V.   - DSES-7
SAP R/3 Alliance Technical Support
ITDSES-6 Technical Information and Links page: http://pat0006/shell.htm
Room 1A/G03
Dokter van Zeelandstraat 1, 2285 BD Leidschendam NL
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Email Internet: ruud.vanruler AT shell DOT com
                        rvanruler AT hotmail DOT com

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