Single Instance Store (SIS)

Is there a way to get statistics for Single Instance Store (SIS), user
statistics, amount of data and other useful information? How?
Exchange 2003/2007.

SIS is not availible in Exchange 2010, want to do some investigation
on this before migration to Exchange 2010.

Jordan

PerfMon. MSExchangeIS Mailbox \ Single Instance Ratio.

PerfMon. MSExchangeIS Mailbox \ Single Instance Ratio.

How useful that is depends on how much you believe that value
represents reality. I gave up on believing it years ago.

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Rich Matheisen
MCSE+I, Exchange MVP

Looked at Single Instance Ratio counter (E2K3) : _Total SingleInstance Ratio

Looked at Single Instance Ratio counter (E2K3) : _Total Single
Instance Ratio and got 398 as an average of 2 SG's?

Can anyone translate this value or tip about other ways to determine
SIS usage?

Jordan

Refer back to my comment about believing this number.

Refer back to my comment about believing this number.
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Rich Matheisen
MCSE+I, Exchange MVP