Hello
Did you mean to say 720 hours @ 1 second ?
That is 2,592,000 samples for each extended point.
Multiply by 10 for the number of bytes and you get
25.9 MB per extended sample. Multiply by 135 for the
number of extended points and you get to 3.5 GB (round numbers).
I would investigate disk concatenation for your system to get
the amount of required space.
Warren Brown
>From: "Sloan, Dennis E(Z99609)" <[EMAIL PROTECTED]>
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>To: "'Foxboro DCS Mail List'" <[EMAIL PROTECTED]>
>Subject: Legacy Historian
>Date: Thu, 6 Sep 2001 11:47:14 -0700
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>Hello Group
>
>We are attempting to figure out why our 4.2GB hard drives are filling up
>and
>what we found is the our historian SAM files are continuing to grow beyond
>what we thought they were going to. We're at Version 6.1.2 on a AW51B.
>
>We have 150 extended points for 720 hours at 1 second - the historian says
>this should equal 427 MB but what we are seeing is that each SAM file grows
>to around 35MB (x 150 points) thereby overfilling our 2.7GB partition. Any
>ideas what we are missing here?
>
>Another question: Is there any way to view the data in a SAM file from a
>different historian? We have several historians and it would be nice to
>not have to go to the individual station to view the data, stated another
>way, we desire to ftp the SAM over to a different station and view it.
>
>Thank you,
>Dennis Sloan
>Arizona Public Service
>
>
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