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

Using non-standard Fibre Channel storageE–2
E.1 Determining basic compatibility
If you intend to use a non-standard Fibre Channel array in your HP SFS system, you must determine whether
the array is compatible with HP SFS. HP SFS uses QLogic Corporation Fibre Channel cards and associated
drivers. You can determine the version of the QLogic driver used by entering the following command on the
administration server (after you have installed the HP SFS system software on the server):
# rpm -q -i qla2x00
Check the QLogic Corporation Web site at www.qlogic.com and the array vendor’s Web site to determine
whether the QLogic driver is compatible with the array you propose to use.
HP SFS uses the QLogic driver in failover mode. If this mode of operation is not compatible with the array
you propose to use, contact your HP Customer Support representative to determine how to disable this
feature.
E.2 Creating LUNs
You can use the information provided in Section 5.1 of this document as a guide to creating LUNs on a non-
standard Fibre Channel array. Section 5.1 describes EVA4000 arrays; however, the general process of
creating logical devices and presenting them to the Fibre Channel HBAs is similar on other Fibre Channel
arrays.
The guidelines in Section 5.1 about the number of disk groups and LUNs are specific to EVA4000 arrays
and may not apply to the array you propose to use. However, try to maximize the throughput of the array.
E.3 Installing with non-standard Fibre Channel arrays
If you intend to use non-standard Fibre Channel arrays in your HP SFS system, follow the installation process
described in Chapter 6, with the following modifications.
Installation Steps 1 through 3 (that is, Section 6.1, Section 6.4, and Section 6.5) do not relate to Fibre
Channel storage; perform these steps as described.
Installation Steps 4 and 5 (that is, Section 6.6 and Section 6.7) involve Fibre Channel storage. When
performing these steps, you need to determine whether HP SFS can operate with the array you propose to
use, as follows:
1. Enter the hpls_scan_luns -scan_only command to determine the WWIDs of the HBAs in the
server. Use this information to present LUNs to the server, then reboot the server.
2. Determine whether devices (/dev/sda, /dev/sdb, and so on) are created. If devices are not
created, use the information in Chapter 9 of the HP StorageWorks Scalable File Share System User
Guide (specifically, the Troubleshooting EVA4000 Array Connectivity and Troubleshooting EVA4000
LUN Presentation sections) to identify and correct the problem, and then attempt to present the LUNs
to the server again.
3. When you have succeeded in creating a device such as /dev/sda, enter the hpls_scsi_info
command as shown in the following example:
# hpls_scsi_info /dev/sda
SCSI_ID="0,0,0,1":VENDOR="ACME":MODEL="Acme Type 1":
FW_REV="1234":SN="P4889B29IKQ032":WWN="50001fe100136e0":
LUN="600508b40000c06c-0001200000120000":
Using the output from this command, consider the following points:
• For correct operation of HP SFS, the following conditions apply:
•The WWN field contains a unique WWID for the array—if the array is accessed through a
different path, the same unique WWID must be used on the path.