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HP XP10000, XP128 manual Ldev

Models: XP10000

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LDEV	Logical device. An LDEV is created when a RAID group is carved into pieces
	according to the selected host emulation mode (that is, OPEN-3, OPEN-8,
	OPEN-L). The number of resulting LDEVs depends on the selected
	emulation mode. The term LDEV is often used synonymously with the term
	volume.
LUN	Logical unit number. A LUN results from mapping a SCSI logical unit
	number, port ID, and LDEV ID to a RAID group. The size of the LUN is
	determined by the emulation mode of the LDEV and the number of LDEVs
	associated with the LUN. For example, a LUN associated with two OPEN-
	3 LDEVs has a size of 4,693 MB.
LUSE	A LUN is normally associated with only a single LDEV. The LUSE feature
	allows a LUN to be associated with 1 to 36 LDEVs. Essentially, LUSE makes
	it possible for applications to access a single large pool of storage. The LUSE
	feature is available when the HP StorageWorks LUN Configuration Manager
	product is installed.
OFC	Open Fibre Control.
OPEN-x	A general term describing any one of the supported OPEN emulation
	modes (for example, OPEN-L).
OS	Operating system.
PA	Physical address.
path	“Path” and “LUN” are synonymous. Paths are created by associating a port,
	a target, and a LUN ID with one or more LDEVs.
port	A physical connection that allows data to pass between a host and the disk
	array. The number of ports on an XP disk array depends on the number of
	supported I/O slots and the number of ports available per I/O adapter. The
	XP family of disk arrays supports Fibre Channel (FC) ports as well as other
	port types. Ports are named by port group and port letter, such as CL1-A.
	CL1 is the group, and A is the port letter.
RAID	Redundant array of independent disks.
remote console PC	The PC running HP StorageWorks Remote Control XP.

Glossary

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HP XP10000, XP128 manual Ldev

Contents

XP128 XP1024 XP10000 XP12000 HP-UXsixth edition July part number A5951-96015 HP StorageWorks Disk Array XP operating system configuration guideHP-UX is a registered trademark of Hewlett-Packard Company 1 Installation ContentsWorksheets TroubleshootingDisk array device emulations IndexIntended audience About this guidePrerequisites Disk arraysHP storage website Related documentationHP sales and authorized resellers HP StorageWorks Disk Array XP128 Owner’s GuideHP technical support Italics Document conventionsBlue text Figure BoldRevision history Warranty statement LIMITATION OF LIABILITY. EXCEPT TO THE EXTENT PROHIBITED BY LOCAL LAW, IN NO EVENT INCLUDING NEGLIGENCE WILL HP OR ITS SUBSIDIARIES, AFFILIATES, DIRECTORS, OFFICERS, EMPLOYEES, AGENTS OR SUPPLIERS BE LIABLE FOR DIRECT, INDIRECT, SPECIAL, INCIDENTAL, CONSEQUENTIAL, PUNITIVE OR OTHER DAMAGES INCLUDING LOST PROFIT, LOST DATA, OR DOWNTIME COSTS, ARISING OUT OF THE USE, INABILITY TO USE, OR THE RESULTS OF USE OF THE SOFTWARE, WHETHER BASED IN WARRANTY, CONTRACT, TORT OR OTHER LEGAL THEORY, AND WHETHER OR NOT ADVISED OF THE POSSIBILITY OF SUCH DAMAGES. Your use of the Software is entirely at your own risk. Should the Software prove defective, you assume the entire cost of all service, repair or correction. Some jurisdictions do not allow the exclusion or limitation of liability for incidental or consequential damages, so the above limitation may not apply to you to the extent prohibited by such local laws Page Installation InstallationFeatures and requirements Fibre Channel interface Failover Device emulation typesRAID Manager command devices SNMP configurationInstallation procedures Setting the host mode for the disk array ports Install and configure the disk arrayPage Installation Setting the System Option ModesMode LevelFibre Address Configuring the Fibre Channel portsFabric and Connection parameter settings Loading the OS and software Install and configure the hostInstalling and configuring the HBAs Clustering and fabric zoning Environment Fabric zoning and LUN security for multiple operating systemsOS Mix Fabric ZoningDefining the paths Connect the disk arrayIn Command View XP AE, LUN mapping includes Configuring ports Installation Verifying HBA installationExample Example Verifying device recognitionTo verify device recognition Example cxtydz wherex = SCSI bus instance number y = SCSI target ID z = LUN different address for each port, reboot the server, and then verify new device recognition again Configure disk array devices Verifying the device files and drivers This task can also be accomplished with the lssf command Example Exampleinsf Installing special files for mux2 instance Creating the device filesExample cxtydz whereExample Example 0xxxyz00 where xx = SCSI bus instance number y = SCSI target IDIf you need to delete a device file, use the rm -i command Example of a completed device data tableTo create the physical volumes Creating the physical volumesTo create volume groups Creating new volume groupsIn this example group name = vg06, major number of group file = each volume group, and c = characterminor number of existing group file = 06 which must be unique for 7. Create the volume groupdev/dsk/c6t0d0 To create logical volumes Creating logical volumeslvremove Example lvremove /dev/vgnn/lvolxExample OPEN-L =To create file systems Creating the file systemsExample Example Example 2. Repeat step 1 for each logical volume on the disk arrayTo change the I/O timeout parameter Setting the I/O timeout parameterTo create a mount directory for each logical volume Creating the mount directoriesExample Example Mounting and verifying the file systemsTo mount and verify the file systems Example Setting and verifying the auto-mount parametersTo set up and verify the auto-mount parameters Device to mount Page Troubleshooting TroubleshootingError conditions newfs for example, /dev/vg01/r/vo/x pvcreate for example, /dev/rdskwith vgcreate The host hangs or devices are Before you call Calling the HP support centerContact Information Page Worksheets WorksheetsPath worksheet Disk array device emulations Disk array device emulationsOPEN Supported emulationsOPEN LUSESector Device type specificationsSectors Device TypeNote 1 The availability of a disk type depends on the disk array Example For a CVS LUSE volume with capacity = 37 MB and n = Physical LUSE device parametersphysical extentphysical Physicalextent extent sizephysical Physicalextent extent sizeSCSI TID map for Fibre Channel adapters The mapping cannot be done when these conditions exist Reference information for SAM 1. Select Disks and File Systems, then select Disk Devices Configuring the devices using SAMTo configure the newly installed SCSI disk devices 4. In the Add a Disk Using LVM window, select Create... or Extend a Volume Group To change the maximum number of volume groups Setting the maximum number of volume groups using SAMGlossary disk controller unit LDEV Volume size customization. Synonymous with CVS support representatives onlyIndex Page Page cannot be created 57 creating 41 creating groups W warranty web site setting maximum number 76 logicalgroups cannot be created 57 creating auto-mount parameters 52 cannot be created 57 creating