Hi Readers,
Want to share the issue that We faced during Lync 2010 CU update.
Below error was logged :-
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Not a major upgrade; using existing file and log file paths for dynamic database
Using existing dyndb path of X:\mssql\prod\data
Using existing dynlog path of Y:\mssql\prod\data
Opened database rtcdyn
Restricting access and dropping database.
Dropped database rtcdyn
Creating database rtcdyn
DbFile : PhysicalName = X:\mssql\prod\data\rtcdyn.mdf
LogFile: PhysicalName = Y:\mssql\prod\data\rtcdyn.ldf
Failed to create database rtcdyn
Error (
name: Error
description:
number: -2147216320
message:
)
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Researched internet & gone thru various articles but none of them applied to us.
On further working with MS Support we found the issue with the SQL cluster configuration.(we also tested that we were not able to create any new databases on the SQL server)
Issue was clustered disks were not part of SQL, so we added those disks in dependencies & ran the below command:
Install-CsDatabase -Update -ConfiguredDatabases -SqlServerFqdn < Fqdn > -DatabasePaths <RtcDyn log path>, <RtcDyn data path>
Tech Wizard
Tech Wizard 
is that a new drive added to the cluster?? … Where u r trying to create the database If yes then sql server cannot see those drives until it’s added into sql group
Nope, those were existing drives that’s why no body thought that could be the issue..
Lync was running fine & last upgrade was also successful, It seems someone has changed cluster configuration in the past…
Yeah that must be the reason some one must be playing with cluster configurations … Can u check the event log against event ID 201 I think.. That should say something
Already tried finding something in Logs but it seems these are recycled & may be it was done long back.