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HP XP128, XP10000 manual Verifying the device files and drivers

Models: XP10000

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Verifying the device files and drivers

The device files for new devices are usually created automatically during HP-UX startup. Each device must have a block-type device file in the /dev/dsk directory and a character-type device file in the /dev/rdsk directory.

However, some HP-compatible systems do not create the device files automatically. If verification shows that the device files were not created, follow the instructions in “Creating the device files” (page 38) to create the device files manually.

This procedure verifies both types of device files.

To verify that the device files for the disk array devices were created:

1.Display the block-type device files in the /dev/dsk directory using the ls –lcommand with the output piped to more. Verify there is one block-type device file for each disk array device.

Example # ls –l /dev/dsk more

Total 0

brw-r - - - - - 1 bin sys 28 0x006000 Dec 6 15:08 c6t0d0

brw-r - - - - - 1 bin sys 280 0x06100 Dec 6 15:08 c6t0d1

2.Verify that the block-type device file name for each device is correct.

3.Display the character-type device files in the /dev/rdsk directory using the ls –lcommand with the output piped to more. Verify that there is one character-type device file for each disk array device.

36	HP StorageWorks Disk Array XP Operating System Configuration Guide: HP-UX

Image 34

HP XP128, XP10000 manual Verifying the device files and drivers

Contents

sixth edition July part number A5951-96015 HP-UXXP128 XP1024 XP10000 XP12000 HP StorageWorks Disk Array XP operating system configuration guideHP-UX is a registered trademark of Hewlett-Packard Company Contents 1 InstallationDisk array device emulations TroubleshootingWorksheets IndexPrerequisites About this guideIntended audience Disk arraysHP sales and authorized resellers Related documentationHP storage website HP StorageWorks Disk Array XP128 Owner’s GuideHP technical support Blue text Figure Document conventionsItalics 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 Device emulation types FailoverSNMP configuration RAID Manager command devicesInstallation procedures Install and configure the disk array Setting the host mode for the disk array portsPage Mode Setting the System Option ModesInstallation LevelConfiguring the Fibre Channel ports Fibre AddressFabric and Connection parameter settings Installing and configuring the HBAs Install and configure the hostLoading the OS and software Clustering and fabric zoning OS Mix Fabric zoning and LUN security for multiple operating systemsEnvironment Fabric ZoningConnect the disk array Defining the pathsIn Command View XP AE, LUN mapping includes Configuring ports Example Verifying HBA installationInstallation To verify device recognition Verifying device recognitionExample x = SCSI bus instance number y = SCSI target ID z = LUN cxtydz whereExample 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 Example Example This task can also be accomplished with the lssf commandExample Creating the device filesinsf Installing special files for mux2 instance cxtydz where0xxxyz00 where xx = SCSI bus instance number y = SCSI target ID Example ExampleExample of a completed device data table If you need to delete a device file, use the rm -i commandCreating the physical volumes To create the physical volumesCreating new volume groups To create volume groupsminor number of existing group file = 06 which must be unique for each volume group, and c = characterIn this example group name = vg06, major number of group file = 7. Create the volume groupdev/dsk/c6t0d0 lvremove Creating logical volumesTo create logical volumes Example lvremove /dev/vgnn/lvolxOPEN-L = ExampleExample Creating the file systemsTo create file systems 2. Repeat step 1 for each logical volume on the disk array Example ExampleSetting the I/O timeout parameter To change the I/O timeout parameterCreating the mount directories To create a mount directory for each logical volumeTo mount and verify the file systems Mounting and verifying the file systemsExample Example To set up and verify the auto-mount parameters Setting and verifying the auto-mount parametersExample Device to mount Page Troubleshooting TroubleshootingError conditions with vgcreate pvcreate for example, /dev/rdsknewfs for example, /dev/vg01/r/vo/x The host hangs or devices are Contact Information Calling the HP support centerBefore you call Page Worksheets WorksheetsPath worksheet Disk array device emulations Disk array device emulationsOPEN Supported emulationsOPEN LUSESectors Device type specificationsSector 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 extentextent Physicalphysical extent sizeextent Physicalphysical extent sizeSCSI TID map for Fibre Channel adapters The mapping cannot be done when these conditions exist Reference information for SAM To configure the newly installed SCSI disk devices Configuring the devices using SAM1. Select Disks and File Systems, then select Disk Devices 4. In the Add a Disk Using LVM window, select Create... or Extend a Volume Group Setting the maximum number of volume groups using SAM To change the maximum number of volume groupsGlossary disk controller unit LDEV support representatives only Volume size customization. Synonymous with CVSIndex Page Page groups cannot be created 57 creating setting maximum number 76 logicalcannot be created 57 creating 41 creating groups W warranty web site auto-mount parameters 52 cannot be created 57 creating