Snapshot is a volume just like any other with read/write permissions, you can map it your SDCs and work with it same as you do with volumes. You can use it instead of / in parallel to the parent volume, just keep in mind that any new data written to the parent volume after you took the snapshot, does not exist in the snapshot.
That doesn't make any sense.It can't roll back, why should i define it. What does those data in the snapshot can do? Mapping the snapshot to SDCs better than Mapping the parent volume to SDCs? I can't figure out why doing this,can you help me ? Thanks very much.
You are right, but the problem is that ScaleIO can use the backup（snap) do something? That means if the database have a problem, I could find the backup in the backup server. Then what should i do? Find the data and manual to recovery the data to parent volume. Or map the snap to database？I think ScaleIO could be using the snap to recovery the parent volume. That just my personal opinion.
For example: you can create a snap of an existing volume and use it for a different purpose. For example, a LUN with a database that you can mount to a Dev environment, or a LUN with a large filesystem that you can mount on a backup server for backup.
RafaelNovo
92 Posts
0
July 27th, 2015 06:00
It does not have a rollback option.
littleboy1
1 Rookie
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53 Posts
0
July 27th, 2015 19:00
sure？So it just copy the volume? Can it do some other things? For example?
tomer__engineer
155 Posts
0
July 28th, 2015 01:00
Snapshot is a volume just like any other with read/write permissions, you can map it your SDCs and work with it same as you do with volumes. You can use it instead of / in parallel to the parent volume, just keep in mind that any new data written to the parent volume after you took the snapshot, does not exist in the snapshot.
littleboy1
1 Rookie
•
53 Posts
0
July 28th, 2015 18:00
That doesn't make any sense.It can't roll back, why should i define it. What does those data in the snapshot can do? Mapping the snapshot to SDCs better than Mapping the parent volume to SDCs? I can't figure out why doing this,can you help me ? Thanks very much.
littleboy1
1 Rookie
•
53 Posts
0
July 28th, 2015 19:00
You are right, but the problem is that ScaleIO can use the backup（snap) do something? That means if the database have a problem, I could find the backup in the backup server. Then what should i do? Find the data and manual to recovery the data to parent volume. Or map the snap to database？I think ScaleIO could be using the snap to recovery the parent volume. That just my personal opinion.
RafaelNovo
92 Posts
0
July 28th, 2015 19:00
For example: you can create a snap of an existing volume and use it for a different purpose. For example, a LUN with a database that you can mount to a Dev environment, or a LUN with a large filesystem that you can mount on a backup server for backup.