Path: utzoo!utgpu!jarvis.csri.toronto.edu!cs.utexas.edu!samsung!uunet!tiamat!quintro!kts
From: kts@quintro.uucp (Kenneth T. Smelcer)
Newsgroups: comp.sys.apollo
Subject: Disk server performance?
Keywords: disk server memory performance
Message-ID: <1990Feb8.230843.18026@quintro.uucp>
Date: 8 Feb 90 23:08:43 GMT
Reply-To: kts@quintro.UUCP (Kenneth T. Smelcer)
Organization: none
Lines: 28


   Our site is looking at adding a large disk server (~700M) to our network,
and we've been wondering what the critical performance parameters are
for a network disk server (other than drive speed).

   Does CPU performance make a large difference in throughput?

   Will the OS take advantage of more memory (Ex. 8M vs 16M) for a 
   major performance win?

The three different configurations we are considering are:

   1. DSP 3500  -  8 Meg RAM  -  697 Meg disk

   2. DN 2500  -  16 Meg RAM  -  663 Meg SCSI disk

   3. DN 3000  -   8 Meg RAM  -  697 Meg disk 

Would the 3000 be much slower than the 3500 (as a disk server)?
(The only reason we're considering this is because we could add the disk 
to an existing 3000 and use the remaining $$$ to buy another DN2500).

Any Opinions?

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Ken Smelcer        Glenayre Corp.           quintro!kts@lll-winken 
                   Quincy,  IL              tiamat!quintro!kts@uunet