HP 3PAR SUSE Linux Enterprise Implementation Guide

5 Configuring a Host with iSCSI....................................................................37
Setting Up the Switch and iSCSI Initiator....................................................................................37
Configuring SUSE 10 & SUSE 11 for iSCSI.................................................................................37
Installing iSCSI on SUSE.....................................................................................................37
Setting Up iSCSI for SUSE...................................................................................................37
Configuring SUSE iSCSI Settings with Device-mapper Multipathing...........................................39
Starting the iSCSI Daemon for SUSE.....................................................................................40
Creating the iSCSI Connection in SUSE Using the iscsiadm Command......................................40
Configuring Challenge-Handshake Authentication Protocol (CHAP) for the iSCSI Host......................41
Setting the Host CHAP Authentication on the HP 3PAR StoreServ Storage..................................41
Setting the Host CHAP for SUSE on the Host..........................................................................41
Setting Up the Bidirectional CHAP on the HP 3PAR StoreServ Storage.......................................42
Setting the Bidirectional CHAP for SUSE...............................................................................43
6 Allocating Storage for Access by the SUSE Host...........................................46
Creating Storage on the HP 3PAR StoreServ Storage...................................................................46
Creating Virtual Volumes....................................................................................................46
Creating Thinly-provisioned Virtual Volumes...........................................................................47
Exporting LUNs to the Host......................................................................................................47
Restrictions on Volume Size and Number...................................................................................48
Discovering New Devices/New Partitioned Devices without rebooting...........................................48
Discovering Devices with an Emulex HBA...................................................................................49
Scan Methods for LUN Discovery.........................................................................................49
Method 1 - sysfs Scan....................................................................................................50
Method 2 - Adding Single Devices..................................................................................50
Verifying Devices Found by the Host Using the Emulex HBA.....................................................51
Discovering Devices with a QLogic HBA....................................................................................52
Scan Methods for LUN Discovery.........................................................................................52
Method 1 - sysfs Scan Using the echo Statement................................................................52
Method 2 - Scan using add single device.........................................................................54
Verifying Devices Found by the Host Using the QLogic HBA.....................................................55
Discovering Devices with an iSCSI Connection............................................................................56
7 Modifying HP 3PAR Devices on the Host.....................................................57
Creating Device-mapper Devices..............................................................................................57
Displaying Detailed Device-mapper Node Information.................................................................58
Partitioning Device-mapper Nodes............................................................................................59
Creating Veritas Volume Manager Devices.................................................................................61
Removing a Storage Volume from the Host.................................................................................61
8 Booting the Host from the HP 3PAR StoreServ Storage...................................64
HP 3PAR StoreServ Storage Setup Requirements..........................................................................64
SUSE Host HBA BIOS Setup Considerations...............................................................................64
Booting from the HP 3PAR StoreServ Storage Using QLogic HBAs............................................64
Booting from the HP 3PAR StoreServ Storage Using Emulex HBAs.............................................64
Installing SUSE.......................................................................................................................65
Configuring Device-mapper Multipathing...................................................................................67
Changing the Emulex HBA Driver Parameters.............................................................................68
Changing the QLogic HBA Driver Parameters.............................................................................69
QLogic DD-Kits.......................................................................................................................71
9 Using Veritas Storage Foundation...............................................................72
Veritas Cluster Server..............................................................................................................72
Veritas Commands..................................................................................................................72
4 Contents