You can connect two storage systems directly to each other.
You can use the HMO 51 (Round Trip Set Up Option) host mode option (HMO) to improve response time of host I/O by improving response time between the storage systems for distance direct connections (up to 10 km Long Wave) when the open package is used.
Note: If you use iSCSI, the HMO settings become invalid.
For more information about HMOs, see the Provisioning Guide for your storage system.
The fabric and topology settings depend on the settings of packages, the protocol used for the connection between the storage systems, and the setting of HMO 51. The link speed that can be specified differs for each condition.
| Package name | Protocol | HMO 51 setting | Fabric setting | Topology: remote replication ports | Link speed that can be specified |
|---|---|---|---|---|---|
| CHB(FC32G) | 32GbpsFC | OFF | OFF | FC-AL |
|