Thanks Andy, that is very helpful. - Matt
> -----Original Message----- > From: Webb, Andy [mailto:[EMAIL PROTECTED] > Sent: Monday, June 09, 2003 1:36 PM > To: Exchange Discussions > Subject: RE: Second Storage Group or Additional Mailbox Store > > > I thought I covered that already. > > The extra storage group lets you split those users into a separate > backup/recovery set. That's not to say you can't get one > database back > if there are more than one in a single storage group though. > It just may > take longer in the single SG situation. Emphasis on "may". > > You can set a storage group to circular logging. Not a good idea for > VIP mailboxes, but perhaps useful for public folder replicas > or newsfeed > public stores. > > You can set a storage group to zero out deleted database > pages. This is > not a major feature, nor performance hit. > > Policies are set on a mailbox store basis though, so you can get that > functionality without the additional overhead of the extra SG. > > Performance would only improve marginally if at all either > way. If you > put the two sets of log files on two separate sets of disk spindles, > then you would increase your log throughput. On the other hand, you > would be losing single instance store and so would be writing > more into > the databases (both STM and EDB) and using much more RAM for overhead > rather than data caching. > > I don't see the benefit in a small environment of an > additional SG. The > additional IS gives you policy differentiation, so that might be the > argument there. > > > -----Original Message----- > From: Bailey, Matthew [mailto:[EMAIL PROTECTED] > Posted At: Monday, June 09, 2003 2:55 PM > Posted To: Microsoft Exchange > Conversation: Second Storage Group or Additional Mailbox Store > Subject: RE: Second Storage Group or Additional Mailbox Store > > > Then what is the upside? Why would you want two Information Stores? > > - Matt > > > > > -----Original Message----- > > From: Webb, Andy [mailto:[EMAIL PROTECTED] > > Sent: Monday, June 09, 2003 12:02 PM > > To: Exchange Discussions > > Subject: RE: Second Storage Group or Additional Mailbox Store > > > > > > The downside is: > > 1) it uses much more RAM to add a storage group vs. adding > a database > > or just staying with one. > > 2) it uses more space because there is a second set of STM and log > > files and single-instance-store is broken. > > 3) it may take more backup time and backup tape > > > > I'm not arguing against doing it. Just stating facts. > > > > > > -----Original Message----- > > From: Bailey, Matthew [mailto:[EMAIL PROTECTED] Posted > At: Monday, > > June 09, 2003 12:11 PM Posted To: Microsoft Exchange > > Conversation: Second Storage Group or Additional Mailbox Store > > Subject: RE: Second Storage Group or Additional Mailbox Store > > > > > > > > > > > > > You don't say anything about why you think you need another > > database, > > > so there's not much more to recommend. > > > > > > > > > > Because my boss wants it. :-) > > > > The thought was to move the "VIP" users (read - the > accounts that are > > exceptions to the rules - mailbox size, mailbox cleanup, > etc.) to the > > second IS. I am still unclear if it improves performance > to balance > > users across multiple IS. > > > > Are there good reasons NOT to do this? > > > > > > _________________________________________________________________ > > List posting FAQ: http://www.swinc.com/resource/exch_faq.htm > > Web Interface: > > http://intm-dl.sparklist.com/cgi-bin/lyris.pl?enter=exchange&t > ext_mode=& > lang=english > To unsubscribe: mailto:[EMAIL PROTECTED] > Exchange List admin: [EMAIL PROTECTED] > > > > _________________________________________________________________ > List posting FAQ: http://www.swinc.com/resource/exch_faq.htm > Web Interface: > http://intm-dl.sparklist.com/cgi-bin/lyris.pl?enter=exchange&t ext_mode=& lang=english To unsubscribe: mailto:[EMAIL PROTECTED] Exchange List admin: [EMAIL PROTECTED] _________________________________________________________________ List posting FAQ: http://www.swinc.com/resource/exch_faq.htm Web Interface: http://intm-dl.sparklist.com/cgi-bin/lyris.pl?enter=exchange&text_mode=&; lang=english To unsubscribe: mailto:[EMAIL PROTECTED] Exchange List admin: [EMAIL PROTECTED] _________________________________________________________________ List posting FAQ: http://www.swinc.com/resource/exch_faq.htm Web Interface: http://intm-dl.sparklist.com/cgi-bin/lyris.pl?enter=exchange&text_mode=&; lang=english To unsubscribe: mailto:[EMAIL PROTECTED] Exchange List admin: [EMAIL PROTECTED] _________________________________________________________________ List posting FAQ: http://www.swinc.com/resource/exch_faq.htm Web Interface: http://intm-dl.sparklist.com/cgi-bin/lyris.pl?enter=exchange&text_mode=&lang=english To unsubscribe: mailto:[EMAIL PROTECTED] Exchange List admin: [EMAIL PROTECTED]
