Manuals / HP / Computer Equipment / Computer Accessories

HP XP128, XP10000 manual Setting the maximum number of volume groups using SAM

Models: XP10000

1 82

Download 82 pages 60.77 Kb

Page 74

Setting the maximum number of volume groups using SAM

Setting the maximum number of volume groups using SAM

The HP-UX kernel specifies the maximum number of volume groups that can be created. The default is 10. You may need to change this number to accommodate new devices on the disk array. To change this number, use the Kernel Configuration function.

To change the maximum number of volume groups:

1.Select the Kernel Configuration function, then select Configurable Parameters.

2.In the Configurable Parameters window, select the maxvgs parameter, select the Actions menu, and then select Modify Configurable Parameter.

3.In the Modify Configurable Parameter window, enter the desired maximum number of volume groups in the Formula/Value field, and then click OK.

4.In the Configurable Parameters window, make sure that none of the parameters are selected. Then select the Actions menu, and select Create New Kernel.

5.When the configuration window opens, click Yes to create the new kernel (or click No to return to the Configurable Parameters window.)

6.When the Reboot the System window opens, click OK to move the new kernel into place and reboot the system.

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

Image 74

HP XP128, XP10000 Setting the maximum number of volume groups using SAM, To change the maximum number of volume groups

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 Loading the OS and software Install and configure the hostInstalling and configuring the HBAs 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 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 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 = ExampleTo create file systems Creating the file systemsExample 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 volumeExample 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 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 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 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