Conference ssdevo::hsz40_product

800.0. "Configuration Questions" by EPS::CONNORS () Thu Mar 06 1997 16:38

We are in the process of developing a sizing guide
for one of our partners suite of applications.  The I/O
section is a real challenge.  Some end-user configurations
will require recommending large amounts of storage.  We'd
like to understand the realistic break point for a single
PCI slot .... 

4100 Example

Is it wise to fully populate the 5 available PCI slots
with KZPSA's ?
 
Should we limit one HSZ50 per KZPSA ?  Is it unwise 
to daisy chain two, three, etc. ?

Should we limit, for example, 24 disks - 6 per channel behind
the KZPSA ?

We are very concerned with performance.  The environment will
include PeopleSoft on Oracle.  The sizing guide must include 
recommendations at various "user" levels along with various 
Production, QA, Development and Test Database size's.   
Some systems will contain all
of the PeopleSoft modules, some only a few.  

We understand the best way to layout the filesystems, ex;
roll back segs, redo logs, Oracle System Table Space, etc. We'll
have multiple database instances on the server(s) being sized. 

We definately have the strong potential to max out the I/O 
capabilities of a 4100 and need to know when to jump to the 
next level. (Ex: second server or 8400).

Any wisdom/insight would be appreciated.  

Thanks in advance