Networker

Re: [Networker] SuperDLT 320 drive: what writing speed are you seeing?

2002-12-13 04:59:58
Subject: Re: [Networker] SuperDLT 320 drive: what writing speed are you seeing?
From: Paul White <Paul.White AT ADIC DOT COM>
To: NETWORKER AT LISTMAIL.TEMPLE DOT EDU
Date: Fri, 13 Dec 2002 01:57:14 -0800
Howard,

Have you tried using nsrwatch from a console? I found the update speed on
this to be much faster than the GUI (NT/Unix), you can see the drive speeds
quite clearly.

Regards

Paul.

----------------------------------------------------------------------

Date:    Thu, 12 Dec 2002 04:34:26 -0500
From:    Howard Martin <howard.martin AT EDS DOT COM>
Subject: Re: SuperDLT 320 drive: what writing speed are you seeing?

As I've said before on unix (Solaris) the GUI underestimates the drive
speed by about 25% (16MB/s for an LTO doing 22MB/s - as reported by iostat
this is because networker polls the drives at a low rate - presumably this
effect gets worse as the drive speeds increase. With the higher speed
drives I would use the OS's speed reporting in preference to Networkers.


--
Paul White BSc (Hons), Pre-Sales Systems Engineer
Advanced Digital Information Corporation (ADIC) Europe

115 Wharfedale Road,    SwitchBoard: 0118 922 9100
Winnersh,               Mobile:      07876 575321
Berkshire,              Email:       Paul.White AT ADIC DOT com
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