The Remote Storage feature allows you to import data from
a remote storage system to a local DE Series storage
system. This feature is helpful when you want to streamline data migration
with minimal downtime, such as during equipment upgrades.
To configure the Remote Storage feature, you must set up the hardware
and then use System Manager to create a remote storage object. Once this configuration
is complete, the import process begins.
Hardware setup
Use
the following workflow to prepare the hardware connections.
On
the local DE Series storage system:
- Ensure that each controller has an iSCSI connection to the remote
storage system. With this connection, the local DE Series system
acts as an iSCSI initiator that can be set up as a host on the remote
system.
- Create a destination volume for the import operation. Ensure that
the volume has a capacity that is equal to or greater than the source
volume on the remote storage system, has a matching block size, and
is not mapped. See Create volumes.
- Gather the iSCSI Qualified Name (IQN) for the local DE Series system
from its System Manager interface. The IQN will be used later for setting up
the local DE Series system as a host on the remote storage system. In System Manager,
go to: .
On the remote storage system:
- Set up the local DE Series system
as a host on the remote system, using its IQN. Be sure to set the
appropriate host type, as follows:
- If the remote system is an DE Series model,
see Configure host access.
- If the remote system is from another vendor, select an appropriate
host type based on the options available.
- Stop all I/Os, unmount any file systems, and remove any assignments
to hosts or applications for the source volume.
- Assign the volume to the newly created local DE Series storage
system host.
- For the selected source volume, gather the following information
from the remote storage system so that the import can be created:
- iSCSI Qualified Name (IQN)
- iSCSI IP address
- LUN number of the source volume
System Manager setup
Use the following workflow to create a remote storage object
for the import:
- Using the Remote Storage wizard in the System Manager interface,
map a remote storage device (the source for the data import) to a
target volume on the DE Series system.
When you select Finish, the import process
begins.
- Monitor the import from the View Operations dialog or the Operations
in Progress panel. If necessary, you can also pause and resume the
process.
- Optionally, break the connection between the source and target
volumes when the import completes, or keep the connection for future
imports.