User manual HP STORAGEWORKS XP DATA INTEGRITY CHECK XP SOFTWARE

[. . . ] HP StorageWorks XP24000/XP20000 Database Validator User's Guide Part number: T5214-96003 First edition: June 2008 Legal and notice information © Copyright 2008 Hewlett-Packard Development Company, L. P. Valid license from HP required for possession, use or copying. Consistent with FAR 12. 211 and 12. 212, Commercial Computer Software, Computer Software Documentation, and Technical Data for Commercial Items are licensed to the U. S. Government under vendor's standard commercial license. [. . . ] The host server requirements for HP Database Validator operations are: XP24000/XP20000 Database Validator User's Guide 17 · XP RAID Manager: 01-22-03/xx or later is required for Database Validator operations on the storage system. · Operating System (OS): · Sun Solaris version 8 or higher. For further information on storage system operations on the Solaris platform, refer to the HP StorageWorks XP Disk Array Configuration Guide for Sun Solaris. For more information on the Solaris OS, refer to the Solaris user documentation or contact Sun technical support. For further information on storage system operations on the HP-UX platform, refer to the HP StorageWorks XP Disk Array Configuration Guide for HP-UX. For further information on implementing Database Validator on HP-UX logical volumes, refer to Implementing Database Validator on HP-UX Logical Volumes. For further information on the HP-UX OS, refer to the HP-UX user documentation or contact HP technical support. · Windows 2000 Advanced Server (Service Pack 3 or later). · Oracle Database: · Oracle8i · Oracle9i · Oracle9i Release2 · Oracle10g Release2 Note: The Oracle database needs to be constructed on raw devices (for example, no file system). Also, you need to set the DB_BLOCK_CHECKSUM parameter to TRUE. Note: Oracle database functionality of check data is slightly enhanced with Oracle9i Release2. Database Validator has two distinct modes: one mode for Oracle8i and Oracle9i databases and another mode for Oracle9i Release2 (and later) databases. · Logical Volume Manager: · VxVM (for the Solaris OS) · LVM (for the HP-UX OS) · LVM (for the AIX OS) · Restrictions and Cautions: · Only write Oracle data to a volume (LU) that is being checked by Database Validator. · If an LU being checked by Database Validator has multiple paths, make sure that each path is set as a target of checking. · If host-based striping (for example, LVM with striping functionality) is used on an LU, then the stripe size must be an exact multiple of the Oracle data block size for that LU. Note: Versions other than those listed above may be supported in future enhancements. For the latest information on supported OS and software versions, contact your HP representative. Oracle Data Validation Service In order to use Database Validator, you need to set up the hardware and software for Database Validator in the storage system and the host server. Operations for these settings are provided as an Oracle Data Validation Service and this service is required. For details, contact your HP representative. · Restrictions and Cautions · Oracle application: · Make sure that the Oracle DB_BLOCK_CHECKSUM parameter is set to TRUE. · Make sure that the Oracle application is set to run in the Archive Log mode. 18 Preparing for Database Validator Operations · Oracle files: · Raw devices: All Oracle tablespace files must be placed on raw volumes (including LVM raw volumes). Database Validator does not support file system-based Oracle files. · Data files separate from redo log files: The Oracle redo log files (including archive logs) must be on different LUs than the data files (including control files). Make sure that the Oracle redo log files and data files are not located on the same LU. [. . . ] Multiple errors that occur in one volume during the polling period are put together in one error message. Figure 14 shows an example of the syslog message output by XP RAID Manager. [HORCM_103] Detected a validation check error on this volume(log1-1 unit#0, ldev#2) : CfEC=1, MNEC=0, SCEC=0, BNEC=0 Figure 14 Example of Syslog Message Output by XP RAID Manager · SSB: The SSB log on the SVP can only be accessed by HP service personnel. The SSB log includes the following information for a validation error: · Error volume (storage system LDEV) · Start address of write request control data block (CDB) · Transfer length of write request CDB · WWN (worldwide name) of host port · Validation item(s) judged as invalid Investigating Error Causes To investigate the cause of a validation error: 1. Check all hardware components of the system. [. . . ]