Networker

[Networker] How does NetWorker come up with backup speed?

2003-02-26 17:06:48
Subject: [Networker] How does NetWorker come up with backup speed?
From: Lilian Feng <lilian.feng AT STORAGEASP DOT NET>
To: NETWORKER AT LISTMAIL.TEMPLE DOT EDU
Date: Wed, 26 Feb 2003 17:01:32 -0500
I have noticed a mismatch of backup speed shown in nwadmin versus iostat -x in 
NetWorker 6.1.3 and Solaris 8.
We have a 2Mbps link to a remote client.  
nwadmin shows 192/154KB/s of backup speed.  iostat -x 5 shows 230-256KB/s of 
writing speed to tape.  netstat -i -I hme0 5 shows around 2Mbps.
If I calculate speed by using (total backup size)/duration, i get 240MB/s of 
backup speed.
570MB/39m:31s = 240MB/s
The total size and duration are from the /usr/logs/messages file.
Any comments on the 25% difference in readings?
Thanks,

Matthew

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