Since December 2007, the Windows Home Server team is trying to uncover and rectify a ‘bug’ in the system that may corrupt data. Though not every system is affected, it appears that use who use more than one hard disk in the system and use specific programs to modify files could be at risk. On its blog site the team has stated:

One question that is getting asked is, “Will I be affected?” We are aware of only a very small percentage of users with confirmed instances of this issue, and we believe that most people are unlikely to be affected. In the KB article we offer up some precautionary measures that people can take. Some of the instances that were initially attributed to this issue ended up being something else, such as a faulty network card/driver, old routers with outdated firmware, or people incorrectly testing the limits of their home servers.

From the outside looking in, some people would say “Why is this taking so long?” Fixing this issue is the Windows Home Server team’s top priority and the team is making good progress on the fix. We understand the issue really well at this point - it is at an extremely low level of the operating system and it requires thorough testing to ensure that the fix addresses the issue. We have coded a part of the fix which is currently being tested internally. Internal testing is expected to continue for at least several more weeks.

Once the patch has passed internal quality bars, external participants will be asked to help test the fix. Our current plan is to release beta test versions of a fix over the next few months, with a final version currently estimated for June 2008, although that date could change as testing progresses. Thorough testing of the fix is critical and will take time.

On the site is a link to a KB article that describes which programs could cause issues with WHS.

Complete article is here.