3PAR 7400 Performance Expectations

[Sheldon Smith]

A 3PAR 7450 loaded mostly with flash:

You will want it running 3.2.1 MU1. Not sure if the new Adaptive Flash Cache will help, but it could be set for "simulator mode" and then you could see if actually turning it on would help.

If you have not done so lately, double-check your switches and HBAs to verify they really are running at 8 Gb. You may want to force the switch ports for the 3PAR and the server(s) to 8Gb rather than auto-negotiate.

Double-check the server's multipathing. I am assuming redundant HBAs and redundant SAN fabrics. At least two paths per HBA; you could go four per HBA.

And verify round-robin is enabled at the host.

Check the HP 3PAR Implementation Guide for the OS to see if there's anything in particular that could be set. Sometimes HBA queue depth and other HBA parameters.

More than that, get Sales involved. They can help you find a resource to do in-depth tuning.

Regards,