Change Host Protocol; Determine Whether You Have Dual-Protocol Sfps - Fujitsu ETERNUS AB Series Maintaining Hardware

Note: Asynchronous and synchronous mirroring are not supported for NVMe over Fabrics. To disable
Asynchronous and synchronous mirroring, the disable storageArray feature=asyncMirror or
disable storageArray feature=syncMirror must be ran through the command line interface.

Change host protocol

You can convert the host port protocol of the baseboard host ports from Fibre Channel (FC) to iSCSI or from
iSCSI to FC. If you have an Infiniband (IB) HIC, you can also convert the protocol of the IB HIC from iSER to
InfiniBand, SRP to InfiniBand, NVMe to InfiniBand, or from NVMe to RoCE.

Determine whether you have dual-protocol SFPs

Use SANtricity System Manager to determine what type of SFP transceivers you have. Because these SFPs can
be used with both FC and iSCSI protocols, they are referred to as dual-protocol or unified SFPs.
About this task
If your current SFPs support data rates of 16 Gbps and 10 Gbps, you can continue to use them after converting
the host port protocol.
Procedure
1. From SANtricity System Manager, select Support.
2. Select the Support Center tile.
3. On the Support Resources tab, locate and select the Storage Array Profile link.
4. Type SFP in the text box, and click Find.
5. For each SFP listed in the Storage Array Profile, locate the entry for Supported data rate(s).
6. Refer to the table to determine whether you can reuse the SFPs, as follows:
Supported data rate(s)
16 Gbps, 10 Gbps, 4 Gbps
10 Gbps
16 Gbps, 8 Gbps, 4 Gbps
• If you have dual-protocol SFPs, you can continue using them after you convert the protocol.
Note: The dual-protocol SFPs do not support 1 Gb iSCSI. If you are converting host ports to iSCSI, be
aware that the dual-protocol SFPs support only a 10 Gb link to the connected port.
• If you have 16 Gbps SFPs, and you are converting host ports to iSCSI, you must remove the SFPs and
replace them with dual-protocol or 10 Gbps SFPs after converting the protocol. As needed, you can also
use 10 Gbps iSCSI copper by using a special Twin-Ax cable with SFPs.
Note: 8Gbps FC SFPs are NOT supported in the E28xx or E57xx controllers. ONLY 16Gbps and 32 Gbps
FC SFPs are supported.
• If you have 10 Gbps SFPs, and you are converting host ports to FC, you must remove the SFPs from these
ports and replace them with dual-protocol or 16 Gbps SFPs after converting the protocol.
SFP type Supported protocol
Dual-protocol
• FC: 16 Gbps, 4 Gbps
• iSCSI: 10 Gbps
10 Gbps iSCSI only
16 Gbps FC only
| Host port protocol |
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