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Dynamic Root Disk

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Overview

Dynamic Root Disk (DRD) provides customers the ability to clone an HP-UX system image to an inactive disk, and then:

  • Perform system maintenance on the clone while their HP-UX 11i system is online
  • Quickly boot the clone disk during off-hours after the desired changes have been made and significantly reduces the system downtime
  • Utilize the clone for system recovery
  • Rehost the clone of an LVM-managed root on another system for testing or provisioning purposes
  • Perform an OEUR Update on the clone from an older version of HP-UX 11i v3 to HP-UX 11i v3 update 4 or later
  • Automatically synchronize the active image and the clone, eliminating the need to manually update files on the clone

DRD is available for download from this page and is supported on HP PA-RISC and Itanium®-based systems.

For more details about DRD, see the DRD website.

DRD is supported on systems including hard partitions (nPars), virtual partitions (vPars), and Integrity VMs running the following operating systems with roots managed by the following Volume Managers (except as specifically noted above for rehosting):

  • Operating System Releases
    • HP-UX 11i Version 2 (11.23) September 2004 or later
    • HP-UX 11i Version 3 (11.31)
  • Volume Managers
    Logical Volume Manager (LVM):
    • DRD A.3.5.* and earlier:
      • HP-UX 11i v2: LVM Volume Group Version 1.0
      • HP-UX 11i v3: LVM Volume Group Version 1.0
    • DRD A.3.6.* and later:
      • HP-UX 11i v2: LVM Volume Group Version 1.0
      • HP-UX 11i v3: LVM Volume Group Version 1.0 and LVM Volume Group Version 2.2
  • Veritas Volume Manager (VxVM):
    • DRD A.3.13.* or earlier:
      • HP-UX 11i v2 and v3 : VxVM 4.1
      • HP-UX 11i v2 and v3 :VxVM 5.0
      • HP-UX 11i v3 :VxVM 5.0.1 running on HP-UX 1503 OEUR or earlier up to 1203 OEUR
      • HP-UX 11i v3 :VxVM 5.1 SP1 running on HP-UX 1503 OEUR or earlier up to 1403 OEUR
    • DRD A.3.14:
      • HP-UX 11i v3 :VxVM 5.0 running on HP-UX 1603 OEUR or earlier up to 0809 OEUR
      • HP-UX 11i v3 :VxVM 5.0.1 running on HP-UX 1603 OEUR or earlier up to 1203 OEUR
      • HP-UX 11i v3 :VxVM 5.1 SP1 running on HP-UX 1603 OEUR or earlier up to 1403 OEUR
      • HP-UX 11i v3 :VxVM 6.1 running on HP-UX 1603 OEUR
    • DRD A.3.15:
      • HP-UX 11i v3 :VxVM 5.0 running on HP-UX 1703 OEUR or earlier up to 0809 OEUR
      • HP-UX 11i v3 :VxVM 5.0.1 running on HP-UX 1703 OEUR or earlier up to 1203 OEUR
      • HP-UX 11i v3 :VxVM 5.1 SP1 running on HP-UX 1703 OEUR or earlier up to 1403 OEUR
      • HP-UX 11i v3 :VxVM 6.0.1 (Non-OEM release by Veritas, patched up to 6.0.5.500) running on HP-UX 1703 OEUR
      • HP-UX 11i v3 :VxVM 6.1 running on HP-UX 1703 OEUR and 1603 OEUR (VxFS 6.1 patch PHKL_44519 or superseding patches required).
    • DRD A.3.16:
      • HP-UX 11i v2 and v3 : VxVM 4.1
      • HP-UX 11i v3 :VxVM 5.0 running on HP-UX 1805 OEUR or earlier up to 0809 OEUR
      • HP-UX 11i v3 :VxVM 5.0.1 running on HP-UX 1805 OEUR or earlier up to 1203 OEUR
      • HP-UX 11i v3 :VxVM 5.1 SP1 running on HP-UX 1805 OEUR or earlier up to 1403 OEUR
      • HP-UX 11i v3 :VxVM 6.0.1 (Non-OEM release by Veritas, patched up to 6.0.5.500) running on HP-UX 1805 OEUR or earlier up to 1703 OEUR
      • HP-UX 11i v3 :VxVM 6.1 running on HP-UX 1805 OEUR, 1703 OEUR and 1603 OEUR (VxFS 6.1 patch PHKL_44519 or superseding patches required).

NOTE: For systems configured with VxFS 6.1, VxFS 6.1 patch PHKL_44519 or superseding patch is required.

WARNING:
Problem: DRD cloning of disks of an HP-UX system having file systems managed by Veritas File System (VxFS) 6.1 fails with DRD version A.3.16. The following mount error may occur at the creation of a DRD clone:
ERROR: Could not mount VxFS "/dev/drd00/lvol3" at "/var/opt/drd/mnts/sysimage_001/": Exec format error
(errno = 8).

Solution: The issue has been addressed with VxFS 6.1.100 patch or PHKL_44519 or superseding patches.
NOTE: HP-UX 11i v3 May 2018 OEUR bundles 6.1 VxFS/VxVM along with PHKL_44519 or superseding
patches. DRD cloning of disks which have file systems managed by VxFS 6.1 works on HP-UX 11i v3
March 2018 OEUR with DRD version A.3.16.
 
Additional product information
Product #: DynRootDisk     
Additional info
Global Trade ID: -
Version: A.3.16
Software specification: HP-UX 11.31 - July 2018 (DynRootDisk_B.1131.A.3.16_HP-UX_B.11.31_IA_PA.depot)
HP-UX 11.23 - July 2018 (DynRootDisk_B.1123.A.3.16_HP-UX_B.11.23_IA_PA.depot)
Installation
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