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arturopenavega
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Posted February 16th, 2019 17:00
Hello, If a make a clone of a 2tb lun, how can i know when all the data from original lun is copied 100% to the new clone. More or less hao much time takes per 1GB? where can i monitor it? Regardsdwilliam62
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Posted February 16th, 2019 22:00
Hello,
It's more complicated than that but it works like a snapshot. Because at the time of creation they are both identical. Just an object pointing to blocks on the disk. Making copies of the pointers is a quick process.
The space is allocated right away for the clone to insure there's enough space, unlike a snapshot which can be deleted if reserve is used up.
Regards,
Don
arturopenavega
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Posted February 17th, 2019 11:00
Thank you dwilliam for your quick reponse.
So basically, what I want to do is this
1) I have a LUN 2TBS called "Share Folders" and in use now i have 1.7 TB
2) So, i decide to make a new LUN clone of "Share Folders" and call "Shared Folders Clone" a quick process as you said.
3) Let's say, one day after, I got ramsoware on the original LUN "Share Folders" all data encripted
4) so basically, I am saved, because i have my lun "Shared Folders Clone" that points to pages where there is no encription on data.
am I right?
or should i have more than one day in order to have all data copied in a backgroud process from "Share Folders" to "Shared Folders Clone"
dwilliam62
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Posted February 17th, 2019 12:00
Hello,
The actual process behind the scenes is proprietary, and a bit more complicated than that but the answer to your question is:
If I clone a volume is that data safe should something happens to the volume it came from? Yes, the clone is safe. As a clone (assuming not mounted to a server that's also infected) not a mirror it's data is intact as of the time it was created.
Changes to the original volume aren't carried over to the clone.
The only way to modify a clone is to connect to it and write data like any other volume.
A clone is a point-in-time copy that does not expire like a snapshot.
Does that explain it better?
Regards,
Don
dwilliam62
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Posted November 6th, 2018 11:00
Hello,
I think you're asking "If I clone a volume, then delete the volume, will the clone still be there?" If so, then yes the clone will still be there. They are not interdependent.
Unlike clones, snapshots are dependent on the base volume, so if you delete a volume all its snapshot will also be deleted.
Regards,
Don