Customers of Microsoft Exchange Online have not been happy campers lately. Following sporadic, sometimes lengthy outages a week ago, many customers experienced significant lag as email queues backed up. With the impending launch of Office 365, issues like these do not inspire confidence.
A post in the Microsoft Online Services TechCenter forums explains how Microsoft detected the issue and quickly assembled the teams necessary to isolate and troubleshoot the problem. A software glitch was discovered causing an Exchange Online HUB server to get clogged with messages. Microsoft added additional servers to share the load, and at the same time Microsoft is also developing a fix for the underlying software glitch.
Nobody can guarantee 100 percent uptime, so an occasional issue is to be expected. The fact that Microsoft responded quickly, implemented a temporary workaround and identified the root cause in a relatively short time is commendable. But the fact that Microsoft is having repeated issues back to back, and that those issues are impacting email, the lifeblood of business communications, is not good.
Microsoft is getting ready to replace Business Professional Online Services (BPOS) with Office 365. There is no official launch date set for Office 365 yet, but it is imminent. With each BPOS or Exchange Online incident, potential Office 365 customers will be increasingly leery of trusting Microsoft's ability to deliver cloud-based services.
It is worth noting that these incidents have not had any impact on the Office 365 beta, which has thousands of users. So, an argument can be made that switching to Office 365 makes sense as a solution to the apparent instability of BPOS.
Incidents like these are concerning, because outages and issues mean no productivity, and no productivity is bad. The issues Microsoft has been experiencing may not be an indication that Office 365 can't be trusted, but I have to admit that the timing is bad.
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