If you have these baseboard
host ports… (not applicable to
controllers without two base-
board ports on the rear)
And you have these HIC
ports…
You can change…
Two SFP+ (optical) ports None Only the baseboard host ports
Two SFP+ (optical) ports Four SFP+ (optical) ports All of the ports
Two SFP+ (optical) ports Two or four SAS ports Only the baseboard host ports
(not applicable to controllers
without two base-board ports
on the rear)
Two SFP+ (optical) ports Two RJ-45 (base-T) ports Only the baseboard host ports
(not applicable to controllers
without two base-board ports
on the rear)
Two RJ-45 (base-T) ports None None of the ports
Two RJ-45 (base-T) ports Two RJ-45 (base-T) ports None of the ports
The baseboard host ports and the HIC ports can use the same host protocol or different host
protocols.
7.1.2. Requirements for changing the host protocol
•
You must schedule a downtime maintenance window for this procedure.
•
You must stop host I/O operations when you perform the conversion, and you will not be able
to access data on the storage array until you have successfully completed the conversion.
•
You must use out-of-band management. (You cannot use in-band management to complete
this procedure.)
•
You have obtained the necessary hardware for the conversion. Your Lenovo Sales
Representative can help you determine what hardware you need and help you order the correct
parts.
•
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
Lenovo, you do not need to change your SFP transceivers.
•
Make sure that the dual-protocol SFP transceivers support both FC (at 16 Gbps) and iSCSI (at
10 Gbps), but they do not support 1 Gbps iSCSI. See
Determine whether you have dual-
protocol SFPs
to determine what type of SFP transceivers are installed.
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