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High Availability (RSS)
Have had this discussion on many occasions and this 3Sharp whitepaper by Missy Koslosky would have proved very useful as an external reference point… High Availability Choices for Exchange Server 2007: Continuous Cluster Replication or Single Copy Clustering
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VMWare Podcasts – VMWAre Infrastructure 3 Podcast: Disaster Recovery (DR) for Exchange using VMWare @ http://www.vmware.com/resources/podcasts/server_consolidation.html by Scott Salyer, VMware Technical Solutions Architect Using VMWare infrastructure
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Following on from the recent announcement on CloudRecovery for DPM from IronMountain ( Backup your DPM data into the cloud…? ) the DPM blog has just announced a webcast on the subject… ( here! ) “ Iron Mountain has recently announced the availability
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What’s the guidance if you’ve got 3 data centres, you're stretching Exchange 2007 mailbox CCR nodes between two of them and the link speed and latencies are similar between all 3. Should you put the File Share Witness (FSW) in the 3rd data centre?
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So can you just use a crossover cable for private cluster communications between CCR (& SCC) nodes. Well the answer, not very surprisingly, is yes; but there are a couple of caveats… Be careful and test the cable, especially if it’s a DIY job;
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This is a smart idea… The DPM UI can be used in conjunction with Iron Mountain CloudRecovery to backup your data into the cloud. For protecting Exchange Server this means that you could use short term protection of your databases to disk via
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This is the last of a few blogs about designing for availability and resilience… The first two are here: Recovery Scenarios for E2K7…..I & Recovery Scenarios for E2K7…..II So after understanding what the types of failures we might encounter, and the
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I've been asked a couple of times about stress testing an Exchange server sitting on a hardware virtualisation platform. What would you have to do differently? Well to be honest I haven't ever done it and a quick trawl of the Internet and internal Microsoft
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One of the fundamental decisions that you might make in the early stages of an Exchange Server 2007 design is whether you favour the use of asynchronous or synchronous replication of Exchange Server data, particularly if you require data centre resilience.
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This is the second of a few blogs about designing for availability and resilience… The first one is here . So after understanding what might happen we now need to understand the pro and cons of each component of the proposed solution, the cost associated
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Have had a number of conversations with customers concerning the merits of achieving both data centre resilience and cost cutting by stretching CCR and avoiding deploying both CCR and SCR. i.e. 3 for the price of 2. Firstly I wouldn’t consider
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I’ve heard a couple of queries recently concerning Windows NLB and the CAS\HUB combined role. The point is that you should use NLB to load balance network traffic and you can therefore effectively de-couple HUB from CAS. For the Hub Transport
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I blogged recently about log roll and CCR – ‘ New log created every 90 seconds... ’ and I need to qualify something… To quote the relevant bit; “In effect log roll will occur every 90 seconds when insufficient transactions occur to fill the current
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This is the first of a few blogs about designing for availability and resilience… WHAT FAILURES MIGHT OCCUR AND HOW DO WE CHOOSE THE RIGHT DESIGN TO PROTECT US? In the very early stages of a messaging design, and in particular at the point at which
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The ability to continue to provide a full service to your user community in the unlikely event of the loss of a datacentre is an increasingly common requirement. The use of Continuous Replication (CCR and SCR) with Exchange 2007 Service Pack 1 is an obvious
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