Before using the Remote Storage feature, review the following
requirements and restrictions.
Supported protocols
The following protocols are supported:
Hardware requirements
The
DE Series storage system must include:
- Two controllers (duplex mode)
- iSCSI connections for both DE Series controllers
to communicate with the remote storage system through one or more
iSCSI connections
- ThinkSystem SAN OS 11.70.1
or greater
- Remote Storage feature enabled in the Submodel ID (SMID)
The remote system can be either an
DE Series storage
system or a system from another vendor. It must include:
Restrictions
The
Remote Storage feature has the following restrictions:
- Mirroring must be disabled.
- Destination volume on the DE Series system
must not have snapshots.
- Destination volume on the DE Series system
must not be mapped to any hosts before the import is started.
- Destination volume on the DE Series system
must have resource-provisioning disabled.
- Direct mappings of the remote storage volume to a host or multiple
hosts is not supported.
- Web Services Proxy is not supported.
- iSCSI CHAP secrets are not supported.
- SMcli is not supported.
- VMware Datastore is not supported.
- Only one storage system in the relationship/import pair can be
upgraded at a time when there is an import pair present.