HP StorageWorks 8000 - NAS User Manual
Storing windows-based oracle databases on the hp nas 8000
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- User manual (268 pages) ,
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- Overview (59 pages)
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Summary of Contents for HP StorageWorks 8000 - NAS
- Page 1 hp storage april 2002 technical white paper User's Guide Storing Windows®-based Oracle® Databases on the HP NAS 8000...
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Page 2: For More Information
Windows is a U.S. registered trademark of Microsoft Corp. Unix is a registered trademark of The Open Group. All brand names are trademarks of their respective owners. Technical information in this document is subject to change without notice. © Copyright Hewlett-Packard Company 2002 04/02 executive summary ........................2... -
Page 3: Table Of Contents
for more information ........................2 hp solution overview ........................4 storage management and definition guide................5 defining NAS 8000 storage for Oracle databases ...............5 NAS 8000 security level guidelines...................6 installation of Oracle software ....................6 installation of Oracle on NAS 8000..................6 location of alert logs and trace files ...................7 installation of Oracle on the Oracle server ................7 creating new database(s)......................7 share level security........................7... -
Page 4: Hp Solution Overview
hp solution overview Data integrity, reliability, scalability and high performance are top priorities in any database implementation. The use of Network Attached Storage (NAS) devices to store database data files has traditionally been discouraged because it was thought that network instability and perceived vulnerabilities of non-local storage posed too great of a potential risk to data integrity and would greatly reduce system performance. -
Page 5: Storage Management And Definition Guide
CPU cycles and I/O bandwidth from the Oracle server to accomplish the mirroring. As well, the use of multiple disk controllers/RAID arrays creates administration overhead and can make the environment very complex and requires server CPU cycles to manage and maintain. The NAS 8000 and its storage subsystem provide a high level of concurrency for fast and efficient data access, and utilize RAID 0/1 or HP AutoRAID technology to protect the data on the storage subsystem’s hard drives. -
Page 6: Nas 8000 Security Level Guidelines
below for more details. For the NAS 8000 system that has a VA 7400, multiple volume groups on separate redundancy groups can be used to increase the fault tolerance level. The operating system of the NAS 8000 will always use the most efficient data pathway to access the VA 7xxx array. If the backup or usage plan calls for the use of NAS 8000 snapshots, space must be reserved in the volume group for the snapshots. -
Page 7: Location Of Alert Logs And Trace Files
location of alert logs and trace files Log and trace files can be an excellent source of information for analyzing problems with the database. If the Oracle executables/binaries are installed on the NAS 8000, the default location for Oracle to write the alert log(s) and trace files will also be on the NAS 8000. -
Page 8: User Level Security
is established, the Oracle service for the database can execute as any user. The dbassist (and oradim utility) will execute the service as “localsystem” unless changed. user level security creating a database with the Oracle Database Administration Assistant (dbassist) If the NAS 8000 is in User/Domain level security and the Oracle server is not executing on the PDC for the Domain (or on a PDC of a trusted Domain), it will not be possible to use the GUI (dbassist) to create a database. -
Page 9: Setting Service Owner
@ECHO 7) Exit Services and control panel – then press enter in this @ECHO command window to continue creating the database. @PAUSE @\Oracle_home\bin\sqlplus INTERNAL/oracle @\some_path\create_database.sql Please note that if dbassist were used to create the command script, the command (batch) file would not have the comments and echo statements. -
Page 10: Database Management
2) A complete backup is recommended. 3) Copy/move the active redo log file(s) using operating system commands. 4) Startup the database instance and mount the database ( SQL> startup mount pfile=”path”; ) 5) Rename the redo log files in the control file. ( SQL> alter database rename file ‘old_redo_file_name’ to ‘new_redo_file_name’;... -
Page 11: Adding Hard Drive(S) To The Va 7Xxx Array
or hot spare protection, do not remove a hard drive or data loss will result. NOTE: Although the VA array is able to recover from most dual hard drive failures, there are certain dual hard drive failures that it cannot recover from (such as losing a master and its mirror). -
Page 12: Hot Backups Using Nas 8000 Snapshots
amount of time a database is unavailable when performing a “cold backup”. If snapshots will be used, especially in a highly dynamic environment where data is rapidly changing, be sure to reserve space for the snapshots in the appropriate volume groups. Snapshots are taken at the file volume level. That is, a snapshot is taken of a single file volume. -
Page 13: Problems, Challenges, And Constraints
The redundancy engineered into the VA 7xxx protects against data loss due to write cache failure in all single failure scenarios. As miniscule as the possibility is, there is a very slight possibility that a catastrophic failure could destroy both banks of the NVRAM. If both banks of the NVRAM were destroyed, the data in the write cache of the NVRAM would be lost. -
Page 14: Storage Diagram For Va 7100
The use of HP Virus Guard Real Time Protection on a file volume that contains an Oracle database is not supported. The use of the Real Time Agent on an active database may cause data corruption to occur. It is possible to perform a scheduled virus scan on file volumes. -
Page 15: Storage Diagram For Va 7400 (Single Volume Group)
storage diagram for VA 7400 (single volume group) Hard Drives in Hard Drives in Redundancy Group 1 Redundancy Group 2 This diagram depicts physical storage divided into two redundancy groups. Hard drives in the odd numbered drive bays are in redundancy group 1. Hard drives in the even numbered drive bays are in redundancy group 2. -
Page 16: Storage Diagram For Va 7400 (Extra Fault Tolerance)
storage diagram for VA 7400 (extra fault tolerance) Hard Drives in Hard Drives in Redundancy Group 1 Redundancy Group 2 This diagram depicts physical storage divided into two redundancy groups. Hard drives in the odd numbered drive bays are in redundancy group 1. Hard drives in the even numbered drive bays are in redundancy group 2. -
Page 17: Glossary
glossary AutoRAID – Combination of RAID Levels 0, 1 and 5DP implemented by the firmware of the VA 7xxx controller to provide automatic data protection on VA 7xxx hard drives. CIFS/SMB – (Common Internet File System / Server Message Block). Protocols used to access non-local storage over a network.