Re: [IMail Forum] How to ensure high availability of email service using Imail 2006?

[Matt]

Open-E (www.open-e.com) has some beautiful and inexpensive software that one can use to create either NAS or iSCSI storage.  Their Enterprise NAS version, which runs around $850 supports replication and snapshots.  It does not fail-over however.  It is based on Linux and Samba, but they customized the software so that it is loaded on an IDE connected flash card that you just simply plug into your box and boot up.  Using iSCSI however, you should be able to mirror two such systems for HA, but the NAS implementations don't have such capabilities. Here's a nice writeup on two iSCSI solutions including Open-E     http://www.tomshardware.com/2006/02/08/iscsi_the_open/ Certainly this isn't the same as clustering, but it does have many uses and benefits. Matt Sanford Whiteman wrote: How are you going to replicate all the mailboxes? I use some replication software for web servers, but wouldn't trust it with anything as real time and frequently changed as the mailboxes. Of course, you have to gauge your rate-of-change and the link speed/latency between the replication partners to make sure there is a match. I have used Double-Take to replicate up to 250 GB mailstores. You have to watch your site-specific variables, but there's nothing inherent in block-level replication that makes it unfit for any particular application type. --Sandy ------------------------------------ Sanford Whiteman, Chief Technologist Broadleaf Systems, a division of Cypress Integrated Systems, Inc. e-mail: [EMAIL PROTECTED] SpamAssassin plugs into Declude! http://www.imprimia.com/products/software/freeutils/SPAMC32/download/release/ Defuse Dictionary Attacks: Turn Exchange or IMail mailboxes into IMail Aliases! http://www.imprimia.com/products/software/freeutils/exchange2aliases/download/release/ http://www.imprimia.com/products/software/freeutils/ldap2aliases/download/release/ To Unsubscribe: http://www.ipswitch.com/support/mailing-lists.html List Archive: http://www.mail-archive.com/imail_forum%40list.ipswitch.com/ Knowledge Base/FAQ: http://www.ipswitch.com/support/IMail/