HP StorageWorks Scalable File Share System Installation and Upgrade Guide Version 2.2

Installing with non-standard Fibre Channel arrays E–3
• The WWID in the LUN field must be unique to the logical device. This must be true even if
the LUN can be accessed through several paths
Depending on the array vendor and the failover mode of the QLogic driver, it is possible
that the same logical device appears as two or more /dev/sd devices. HP SFS can
operate in this environment because it uses the WWID in the LUN field to determine that
the same logical device is being referenced.
• HP SFS assumes a standard configuration of two controllers on the array, with each
controller having its own unique value in the SN field. HP SFS can operate if the
configuration on your array is different from this standard configuration; however, the
Controller field as shown in the output from the show array and other commands
may contain invalid data.
• HP SFS uses the first 8 characters from the MODEL field (in the output from the
hpls_scsi_info command) to assign a value to the Type field in the output from the show
array command.
If different models of similar arrays do not have unique values in the MODEL field, you can add
entries for the models to the database, as shown in the following example. In this example, the
Acme vendor has two models, Acme Type 1 and Acme Type 2:
# mysql hplsdb
msql> insert into hpls_attributes values (’array.model’,’Type 1’,
’array.model.type1’,’Acme*1*’);
msql> insert into hpls_attributes values (’array.model’,’Type 2’
’array.model.type2’,’Acme*2*’);
If the hpls_scsi_info command is working correctly with your array, the show lun and show array
CLI commands will show the LUNs and associated arrays. If this is not the case, reboot the server and try
again. When you are satisfied that the array can be used with HP SFS, continue the installation process as
described in Chapter 6.