LUN considerations for Fibre Channel attachment
You can use a worldwide port name to associate a LUN for Fibre Channel attachment.
For Fibre Channel attachment, LUNs are associated with the Fibre Channel adapter through the worldwide port name (WWPN) for the host adapter.
In a switched fabric configuration, a single Fibre Channel host adapter can have physical access to multiple Fibre Channel ports on the storage system. In this case, you can configure the storage system to allow the host to use some or all of the physically accessible Fibre Channel ports on the storage system.
The maximum number of LUNs that can be assigned to a host is dependent on the host operating system type.
Table 1 lists the maximum
number of LUNs that are supported by some of the more common hosts.
For more details, see your operating system documentation.
| Host operating system type | Number of LUNs per host |
|---|---|
| AIX® | 64000 |
| HP-UX | 16000 |
| Linux® | Thousands |
| Solaris | Thousands1 |
| IBM® i | 64000 |
| Windows | Thousands |
| ESXi | 1024 2 |
| 1 Previously for Solaris, all storage system ports shared a single volume group per host, which limited the maximum volumes per host to 256. Currently for Solaris, each storage system port can use a different volume group (256 volumes per port), allowing many thousands of volumes per host. This amount is limited only by the number of ports on the storage system that are assigned to the Solaris host. | |
| 2 1024 is the configuration limit for ESXi 6.7 or later and 512 for ESXi 6.5. | |