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Newsgroups: comp.databases.ms-sqlserver
Date: Fri, 16 Jan 2015 19:57:37 -0800 (PST)
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Subject: SQL 2012 Database Mirroring Issue is stalling
From: Query Builder <querybuilder@gmail.com>
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Xref: csiph.com comp.databases.ms-sqlserver:1856

hi All, 

I have a SQL 2012 Enterprise Primary and DR SQL Clusters. 
I have a 500 GB TDE Enabled Using HSM SQL DB which I have mirrored across to DR.

I am noticing that my Logs are shipping to DR, but the Unrestored Log size is huge and My restore rate is about 0 - 80KB/Sec. This is Causing the unrestored Log to grow on the DR side. 

I also notice at times my Unsent Log is also getting big after any DB Maintenance activities (such as rebuild of indexes). 

I have a dedicated connection between my datacenters and the traffic thruput is quite reasonable and I am able to copy out a 2GB File across within a few minutes. I see no packet drops within my links. 

How do I ensure that my unsent logs are copied out and also increase my restore rate in DR side. 

Any help / Suggestions will be much appreciated.  

Regards
Aravin Rajendra.