Actually, it's the average number of references per message in the store, and therefore you can extrapolate the amount of storage space saved by SIS.
Therefore, stores with an SIS of 3 mean an average of 3 references per message. I find it rare to see SISs less than 2, unless there is very little intraoffice email exchanged. ------------------------------------------------------ Roger D. Seielstad - MCSE Sr. Systems Administrator Inovis - Formerly Harbinger and Extricity Atlanta, GA > -----Original Message----- > From: Gary Barnett [mailto:[EMAIL PROTECTED]] > Sent: Tuesday, October 08, 2002 5:54 PM > To: Exchange Discussions > Subject: RE: SIS and English > > > Sounds to me that if x messages exist in the store and y messages are > duplicates, then the ratio can be expressed as a percentage > of messages that > are singly stored. > > Note that the number of bytes saved is not included in the > calculation, hence > the result says nothing about the number of bytes saved. > > I suppose you are supposed to assume that all the dups are copies of > forwarded jokes, MP3 and other large attachments, rather than > 500 copies of > "To the loser who stole my pen, please return it, ASAP!" > > --Gary > > > -----Original Message----- > From: Mark Hanji [mailto:[EMAIL PROTECTED]] > Sent: Tuesday, October 08, 2002 2:36 PM > To: Exchange Discussions > Subject: SIS and English > > > First, cool subject :-) > > Ex5.5, perfmon on MSexchangeIS private. > I look at the "Single Instance Storage Ratio" counter and > wonder: Does the > word "ratio" means like the English "ratio" word, or it means > actually how > much data I save because I am using SIS? > > Idiot Question? Look at :Q160178 > > ============================================================== > ============== > ======== > Single Instance Ratio: > > The ratio between the total number of message references and > the total number > of messages stored in the information store. This ratio > indicates the amount > of storage saved by single instance storage. > ============================================================== > ============== > ========= > > The first sentence talks about ratio, which means some kind > of mathematical > relation. The second sentence talks about a permanent number > - "amount of > storage". > > Well?! > > > _________________________________________________________________ > List posting FAQ: http://www.swinc.com/resource/exch_faq.htm > Archives: http://www.swynk.com/sitesearch/search.asp > To unsubscribe: mailto:[EMAIL PROTECTED] > Exchange List admin: [EMAIL PROTECTED] > > _________________________________________________________________ > List posting FAQ: http://www.swinc.com/resource/exch_faq.htm > Archives: http://www.swynk.com/sitesearch/search.asp > To unsubscribe: mailto:[EMAIL PROTECTED] > Exchange List admin: [EMAIL PROTECTED] > _________________________________________________________________ List posting FAQ: http://www.swinc.com/resource/exch_faq.htm Archives: http://www.swynk.com/sitesearch/search.asp To unsubscribe: mailto:[EMAIL PROTECTED] Exchange List admin: [EMAIL PROTECTED]
