• If you are attempting to change the baseboard host ports of your storage array, and it currently uses dual-
protocol (also referred to as unified) SFP transceivers that you purchased from NetApp, you do not need to
change your SFP transceivers.
• Make sure that the dual-protocol SFP transceivers support both FC (at 4 Gbps, or 16 Gbps) and iSCSI (at
10 Gbps), but they do not support 1 Gbps iSCSI. See
Step 1: Determine whether you have dual-protocol
SFPs
to determine what type of SFP transceivers are installed.
Considerations for changing the host protocol
The considerations for changing the host protocol depend on the starting and ending protocols of the
baseboard host ports and the HIC ports.
If you use a Mirroring feature or the Data Assurance (DA) feature, you must understand what happens to these
features when you change the host port protocol.
The following considerations apply only if you are converting a storage array that has already
been in use. These considerations do not apply if you are converting a new storage array that
does not yet have hosts and volumes defined.
Converting from FC to iSCSI
• Asynchronous Mirroring requires both the local storage array and the remote storage array to use the
same protocol.
◦ If you are currently using Asynchronous Mirroring through the baseboard, you must deactivate
Asynchronous Mirroring relationships using those ports before applying the feature pack.
◦ Refer to the online help for SANtricity System Manager to delete all mirror consistency groups and
remove all mirrored pairs from the local and remote storage arrays. In addition, follow the instructions in
the online help to deactivate Asynchronous Mirroring.
If your configuration contains SAN Boot hosts connected to the FC baseboard ports,
check the
NetApp Interoperability Matrix tool to ensure that the configuration is
supported on iSCSI. If it is not, you cannot convert the host protocol to iSCSI.
• The Synchronous Mirroring feature is not supported for iSCSI.
◦ If you are currently using Synchronous Mirroring relationships via the baseboard ports, you must
deactivate those Synchronous Mirroring relationships.
◦ Refer to the online help for SANtricity System Manager to remove all synchronous mirrored pairs,
which removes mirror relationships on the local storage array and on the remote storage array. In
addition, follow the instructions in the online help to deactivate Synchronous Mirroring.
If you do not deactivate Synchronous Mirroring relationships before converting to iSCSI,
your system will lose data access and data loss might occur.
Converting from iSCSI to FC
• Asynchronous Mirroring requires both the local storage array and the remote storage array to use the
same protocol. If you are currently using Asynchronous Mirroring with the baseboard ports, you must
deactivate Asynchronous Mirroring before changing the protocol.
• Refer to the online help for SANtricity System Manager to delete all mirror consistency groups and remove
all mirrored pairs from the local and remote storage arrays. In addition, follow the instructions in the online
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