Dell PowerVault NX3500, Administrator'S Manual, Page: 206 / 218

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Frequently Asked Questions
7 Can I restore a single file?
Yes.
8 Can I restore old backup to another NAS appliance?
Yes.
9 Can I restore backup to another NDMP appliance?
Yes. The data from NDMP is sent in raw format, so the target
appliance supports it.
10
Can I see which active backups are currently in progress?
Yes, using NAS CLI you can see the active backups currently in
progress, run
data-protection ndmp active-jobs
list.
11 Can I use NDMP to backup a network drive I have mapped to my client?
No, you cannot use NDMP to backup a network drive.
Replication
1 How does replication work?
Replication utilizes FluidFS snapshot technology and other
calculations to ensure the replicated virtual volume's data matches the
source virtual volume data at the date and time a replication task was
started. Only the blocks that have been modified since the last
replication task are transferred over the client network.
2
How long does replication take?
This depends on the amount of data on the virtual volume and the
amount of data that has changed since the last replication cycle.
However, replication is a lower level task which receives priority over
serving data. Typically, replication with little changes finishes in less
than a minute.
3 Can I replicate a virtual volume to multiple virtual target volumes?
No, once a source volume has a replication policy with a target virtual
volume, neither virtual volume can be used for replication (source or
destination).