Add-In: StableBit DrivePool v 1.2.0.6962 BETA

The beta build of StableBit DrivePool has had an update.

Version 1.2.0.6962 BETA for WHS 2011, SBS 2011 Essentials and Windows Storage Server 2008 R2 Essentials has the following changes:

• Added byte deltas to re-balance markers.
• The StableBit Scanner balancer will now respect existing limits and use protected vs. unprotected limits when deciding how to best evacuate files.
• Changed the drive emptying algorithm to not empty a drive beyond the point which was computed at the time of the balance model calculation. This caused unintentional drive overfill and perpetual balancing under some circumstances.
• When removing a drive, DrivePool will scan for any local server processes / services that are using any files on that pool part and attempt to gracefully close them (or restart them, if supported).
• [D] Added workaround for a bug in Windows. The bug seems to manifests itself only on domain controllers (such as the Windows Small Business Server 2011 Essentials). The user sees "Insufficient resources" error messages when copying files to / from the server. The error is actually coming from the server and not from DrivePool. Apparently, Windows inadvertently exhausts an internal pooled resource when sending network based read / write requests to the file system. This doesn’t typically happen on NTFS because of the different timing semantics there (but it seems possible). CoveFS will now limit the number of "in-flight" requests in order to keep the overzealous Windows component from asking for more data than it can handle. (yes, this one took a bit of doing to figure out)
• Added polish translation (Credit: Marek)
• Drive removal would fail if a duplicated file was in-use with a non-descriptive error message.

[D] = Driver was modified (reboot required after update)

More information on StableBit DrivePool is available from here.

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