MSSQL - Log shipping fundamentals

Hello there,

I created a Log shipping between 2 servers using MSSQL 2008 R2 and MSSQL 2012. The log shipping sis working as expected ie.e. every 1 hour the Log shipping is scheduled from 9.00am to 5.00pm everyday, now my question is for e.g. if for some reason say network disconnect, the log shipping at 2pm was not able to take place, then the next schedule which is 3pm what happens. does it take into consideration that 2pm data from the source DB or the data between 1pm and 2pm is lost on the secondary DB. Can somebody please explain how it works.

cheers
Zolf
zolfAsked:
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Vitor MontalvãoMSSQL Senior EngineerCommented:
No worries if you have network issues. The process is smart enough to understand that a Log file is missing and will wait for the file to be copied through the Log Shipping process so it will apply it after the transaction log file will be available.
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zolfAuthor Commented:
so from what i understood with the e.g. I have mentioned above, the log shipping will copy and restore the data from 2 to 3pm and 3 to 4pm. correct??
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Vitor MontalvãoMSSQL Senior EngineerCommented:
Yes. The Log Shipping mechanism always knows which files being copied and which one didn't. It will restart from the last copied file.
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zolfAuthor Commented:
thanks!!
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