Novell LINUX ENTERPRISE SERVER 11 - DEPLOYMENT Deployment Manual

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Novell LINUX ENTERPRISE SERVER 11 - DEPLOYMENT Deployment Manual Manual pdf 57 page image

CD ROM or Server from the action menu. Provide information as requested on subse-quent windows.Load from SCSI-Attached DVDTo IPL from a SCSI DVD, you need access to an FCP adapter connected to a DVDdrive. You need values like the WWPN and LUN from the SCSI drive. For details, seeSection “IPL from FCP-Attached SCSI DVD” (page 54).4.1.4 The IOCDSThis section provides some necessary information about the IOCDS and how to cus-tomize some settings for sharing network cards or DASDs among several LPARs. Inthe IOCDS, the chpid and types of the devices connected to the IBM System z aredefined. The resources can be dedicated or shared among LPARs.WARNING: Sharing Devices (DASD)Do not share DASD writable among LPARs because this might result in dataloss. Consider the definition of the necessary resources in advance when plan-ning the setup for SUSE Linux Enterprise Server on IBM System z.This example shows how to dedicate a DASD to one specific LPAR. This LPAR isreferred to as LPAR1.Example 4.1 Dedicating DASD to One LPARCHPID PATH=FD,TYPE=DSD,SHAREDCNTLUNIT CUNUMBR=FD00,PATH=FD,UNITADD=((00,256)),UNIT=3990-2IODEVICE ADDRESS=(FD03,1),CUNUMBR=FD00,UNIT=3390,PART=LPAR1To share a DASD among LPARs, delete the PART=LPAR1 part in the IOCDS definition.This might be useful for high availability reasons or for sharing data among LPARsread-only.Several Linux systems can use the same network device if you share it among LPARsor z/VM guests. This reduces the number of network devices that must be provided tothe Linux system. On the other hand, you might provide more than one network deviceto one Linux system to make it more available in case one connection fails.Installation on IBM System z 45