What is SnapMirror lag time?
A SnapMirror or SnapVault relationship’s lag time is calculated using: The snapshot timestamp. The time on the destination system. The amount of time needed to transfer the snapshot from source to destination.
What is netapp DP?
“DP” are block-based and uses BRE (Block Replication Engine) “All the rest of it”, (file-based) i.e XDP, SnapVault and version independent SnapMirror uses LRE (Logical Replication Engine) BRE (suited for disaster type of scenario) = Tracks each “block” and is unaware of file-system structure.
What is NetApp backup?
NetApp® Cloud Backup delivers seamless and cost-effective backup and restore to protect and archive Cloud and On-Premises unstructured ONTAP data, databases, and virtual machines. With block-level backups, you can simplify your backup strategy and slash data protection costs.
What protocol does SnapMirror use?
SnapMirror uses the typical socket/bind/listen/accept sequence on a TCP socket. SnapMirror source binds on port 10566. The destination storage system contacts the SnapMirror source storage system at port 10566 using any of the available ports assigned by the system.
Why is the SnapMirror show command so slow?
The snapmirror show command only returns the cached information, therefore there is a delay after the information is changed before it is reflected in the snapmirror show output. Other information, such as progress metrics during a transfer, is only updated periodically and can be very delayed in the snapmirror show output.
Why is my load-sharing mirror lagging behind?
For load-sharing mirror relationships, if the exported-snapshot field for a relationship has a dash (-), the load-sharing mirror is lagging behind the up-to-date mirrors in the set. Select SnapMirror relationships that have a matching exported Snapshot copy timestamp. Select SnapMirror relationships that have a matching healthy condition.
What is the lag time for a scheduled SnapMirror update?
The lag in this scenario would be 8 hours 30 minutes, because: At the time of the scheduled snapmirror update, eight hours had elapsed since the snapshot was created and labeled sv_daily Transferring the snapshot from the source to the destination took 30 minutes
Why is there a delay after I change the SnapMirror relationship?
Some of the SnapMirror relationship information is cached. The snapmirror show command only returns the cached information, therefore there is a delay after the information is changed before it is reflected in the snapmirror show output.