We are in the process of migrating our HVD10 storage to an XP256 via FW-SCSI
and I/O Expansion (1828A) cabinets. Our performance testing thus far, show a
large increase in cpu pause, and disk queuing on the XP256 system.  Job run
time is similar within 5 - 10 minutes on a 1 hour job. 
I have seen many posts about the XP being a great deal faster, but we are
not seeing that and have concerns about moving forward with our migration. 
I am wondering if it is set up properly for best performance.. etc.. 

Does anyone have any insight or ideas about this ?     The XP is set up raid
1 I believe, ( OPEN-9 in DSTAT ) and are set up as HPDARRAY in sysgen.   Is
that the correct sysgen id for the xp ? 
There are a similar # of drives/LUNs on both of our test volume sets. The
HVD is setup as mirror/iX. 

Thanks for any info you could provide. 

Ron Keiper
The Nielsen Company.

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