Adding second EV server to existing EV site
Hello! We're looking to possibly add a second EV Server within our existing EV Site.
We have a single EV 10.0.1 Server running against an Exchange 2010 DAG with two mailbox servers, with all live mailboxes on the primary mailbox server in the DAG. Currently, the single EV 10.0.1 Server is responsible for all of the EV tasks. It's an HP ProLiant DL380 G6 with the OS and MSMQs running on one mirrored volume and the indexes on the second volume in the server (OS/MSMQ on one set of spindles, and indexes on the other set of spindles).
All the vault stores, for journaling and user mailbox archiving, are located on an external locally attached storage array. Journaling and user mailbox archiving have been going to the the same vault store up until recently, when I created a separate vault store wihtin the same vault store group.
We only have 500 user mailboxes but we process a lot of mail for a small organization. Somewhere on the order of 100,000 messages or more per day and many with sizeable attachments (1-3 MB). I know this is not very specific data but I'm hopeful it's specific enough for general guidance.
I have begun moving user mailbox archives into the new vault store with the idea being that, when we run backups we will not backup the vault store with the user archives as users are constantly trying to archive more messages. I've been offered a BL460C G7 blade to add as a second EV server to help distribute processing of whatever tasks may help archive and index messages faster. My thought was to add the blade as a second EV server and have it handle user mailbox related tasks. After reading a number of forum posts, it sounds like the storage service may still be the bottleneck since all vault stores are all located "on" the DL380.
Mainly, I don't want to add another EV Server and another storage array in order to provide a boost to user mailbox archiving and indexing. I'm just wondering if I'm missing anything with regards to being able to accomplish this with the resources I already have. Any input is appreaciated - and if I've missed content here in the forums that spells it out otherwise, feel free to just post a link and I will be happy to read rather than have you spend a bunch of your time re-posting.