Before creating a mirrored pair, follow these guidelines.
- You must have two storage
arrays.
- Each storage array must
have two controllers.
- The two storage arrays must be discovered in SAN Manager .
- Each controller in both the
primary array and secondary array must have an Ethernet management
port configured and must be connected to your network.
- The storage arrays have a minimum firmware version of 11.50. (They
can each run different OS versions.) Mirroring setup is different
when using SAN Manager 4.1 and earlier versus 4.2 and later, as well
as System Manager 11.60.1 and earlier vs 11.60.2 and later.
If your controllers are using System Manager 11.50–11.60.1,
select the initiator array and click Launch to open the browser-based
System Manager and configure mirroring from there.
If your controllers are using System Manager 11.60.2 or later,
mirroring configuration is performed entirely from SAN Manager 4.2
or later.
- You must know the password
for the local and remote storage arrays.
- You must have enough free
capacity on the remote storage array to create a secondary volume
equal to or greater than the primary volume that you want to mirror.
- Asynchronous mirroring is supported on controllers with Fibre
Channel (FC) or iSCSI host ports, while synchronous mirroring is supported
only on controllers with FC host ports.
In a VMWare environment, DE6000 systems must be mirrored with
other DE6000 systems. DE2000 and DE4000 systems can be mirrored with
DE2000 or DE4000 systems. DE6000 systems do not support mirroring
with DE2000 or DE4000 systems in a VMWare environment.