topic Re: QSM for qtree with LUNs inside in ONTAP Discussions

QSM for qtree with LUNs inside

slava — Thu, 05 Jun 2025 06:09:07 GMT

Hello everybody,

I need an clarification about QSM.

Since QSM is working in a file level what will happen in
environment with LUN inside of qtree if some data changed?

Will QSM backup full LUN?

Thanks.

Re: QSM for qtree with LUNs inside

radek_kubka — Wed, 27 Feb 2013 11:27:46 GMT

Hi,

QSM uses a logical replication in this sense, that all the files and directories in the source file system are created in the destination file system.

However, once the baseline is established, only block-level changes within files will be replicated during QSM update.

Regards,
Radek

Re: QSM for qtree with LUNs inside

slava — Wed, 27 Feb 2013 12:04:30 GMT

Thanks Rabek,

In other words, since initial transfer done changes in the LUN
will not cause full LUN replication in the QSM, right?

Slava Chubar

Re: QSM for qtree with LUNs inside

radek_kubka — Thu, 28 Feb 2013 13:16:29 GMT

yes, that's right.

Re: QSM for qtree with LUNs inside

slava — Thu, 28 Feb 2013 13:31:17 GMT

Thanks Rabek.