60 Mbps iSCSI burns 80% CPU?

I am at a new company and I notice that when their NetApp filers are seeing just 60Mbps of iSCSI traffic on their GigE ports - the CPU of the NetApp is at 80%.  This seems out-of-whack.  Is it the case that we just have an underpowered dinosaur for storage?  Or does it sound like a configuration problem?  Thanks!
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amigan_99Network EngineerAsked:
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Duncan MeyersCommented:
That's about right - although I suspect that you mean 60 MBytes per second? The FAS 270 is a small box hat hosts a maximum of three drive shelves. The beauty of NetApp kit is that it uses the same operating system from the entry-level boxes right through to the Petabyte behemoths, so upgrades are absolutely painless with no data loss and minimal downtime. If you're finding that you need more performance, look into an upgrade to a FAS2050 or FAS3020.

Do you have performance issues, or are you just concerned about the processor utilisation?
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amigan_99Network EngineerAuthor Commented:
Hi Meyersd - no I mean 60 MegaBITS per second.  Right - the FAS270.  We have had performance problems with BlackBerry Enterprise Server whenever ESEUtil runs.  When ESEUtil runs the interface on the FAS270 hit say 60-90Mbps and CPU climbs.  Eventuallly the BES server CPU will also spike and then it dies.  Thanks.
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Duncan MeyersCommented:
Ooooo, that's nasty....

iSCSI latency is a real issue on FAS270s, and may be the cause of your woes. Have you teamed the NICs on the FAS?
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amigan_99Network EngineerAuthor Commented:
I think the head is ok but in the end it appears we need more spindles for the amt of data we're pulling.  Thanks.
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