Re: [ADSM-L] transfer rate terminology

Subject:	Re: [ADSM-L] transfer rate terminology
From:	Mehdi Salehi <ezzobad AT GOOGLEMAIL DOT COM>
To:	ADSM-L AT VM.MARIST DOT EDU
Date:	Thu, 8 Jul 2010 17:10:11 +1000

Thanks for your replies.

According to IBM, 3592 J1A tape drive has Compressed sustained data rate of
80 MB/s and Maximum interface burst transfer rate of 200 MB/s

http://publib.boulder.ibm.com/infocenter/ts3500tl/v1r0/index.jsp?topic=/com.ibm.storage.3584.doc/ipg_3584_a69p0cti20.html

When backing up a storage pool (source and destination pools are based on
3592 J1A drives), I noticed that transfer rate between two drives was more
than 100MB/s for a long period of time. "q proc" showed that a big file
(more than 200GB) was being transferred. Why the transfer rate exceeded
80MB?

Many thanks,
Mehdi

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