Compaq ProLiant 1850R Modifying Physical Cluster Resources in a Compaq Paralle
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- Compaq ProLiant 1850R | Modifying Physical Cluster Resources in a Compaq Paralle - Page 1
12 Modifying Physical Cluster Resources in a Compaq Parallel Database Cluster Abstract: At some time during the life of a Compaq Parallel Database Cluster it is likely that Storage Drives Additional scenarios are described in Chapter 5 of the Compaq Parallel Database Cluster Administrator Guide. - Compaq ProLiant 1850R | Modifying Physical Cluster Resources in a Compaq Paralle - Page 2
logo, Wonder Tools logo in black/white and color, and Compaq PC Card Solution logo are trademarks and/or service marks of Compaq Computer Corporation. Microsoft, Windows, Windows NT, Windows NT Server and Workstation, Microsoft SQL Server for Windows NT are trademarks and/or registered trademarks of - Compaq ProLiant 1850R | Modifying Physical Cluster Resources in a Compaq Paralle - Page 3
in which the arrays are powered on. Oracle uses these disk number assignments via the links created with the SETLINKS utility. The order in which drives are brought online directly affects the disk numbers assigned to the disks, which in turn affects whether Oracle8 Server can find its database - Compaq ProLiant 1850R | Modifying Physical Cluster Resources in a Compaq Paralle - Page 4
power-on sequence as such. On each node use disk administrator to verify that the disks are brought on-line in the expected order before starting the Oracle instance. Also, verify that the PGMS service is set to start manually Oracle8 Server to map specific Oracle database files to specific hard - Compaq ProLiant 1850R | Modifying Physical Cluster Resources in a Compaq Paralle - Page 5
Modifying Physical Cluster Resources in a Compaq Parallel Database Cluster 5 Node1 represents the drives in the first array as Harddisk2, Harddisk3, and Harddisk4, while Node2 represents them as Harddisk1, Harddisk2, and Harddisk3. - Compaq ProLiant 1850R | Modifying Physical Cluster Resources in a Compaq Paralle - Page 6
Modifying Physical Cluster Resources in a Compaq Parallel Database Cluster 6 What happens when the drive numbering order changes? When the numbers associated with the shared drives change the symbolic link table files are no longer correct. Each of these files must be modified to reflect the - Compaq ProLiant 1850R | Modifying Physical Cluster Resources in a Compaq Paralle - Page 7
Modifying Physical Cluster Resources in a Compaq Parallel Database Cluster 7 A symbolic link worksheet needs to be run through an Oracle utility called SETLINKS. Refer to the Oracle Parallel Server Getting Started Release 8.0.5 for Windows NT manual and to other appropriate Oracle8 documentation - Compaq ProLiant 1850R | Modifying Physical Cluster Resources in a Compaq Paralle - Page 8
Compaq service with the following command: C:\Net stop oracleservice 3. Shutdown Windows NT Server and power off all the cluster nodes. Power off all of the fibre channel arrays. 4. For the fibre channel array that is being removed, physically unplug the fibre channel cables - Compaq ProLiant 1850R | Modifying Physical Cluster Resources in a Compaq Paralle - Page 9
oracle service with the following command: C:\Net stop oracleservice 3. Shutdown Windows NT Server and power off all the cluster nodes. Power off for shared storage system. • See the Compaq Fibre Channel Storage System User Guide for details on how to install cables and shortwave - Compaq ProLiant 1850R | Modifying Physical Cluster Resources in a Compaq Paralle - Page 10
the order that is expected. If not, you will need to troubleshoot the problem as to why the expected order does not exist. See the troubleshooting section in the Compaq Parallel Database Cluster Administrator Guide for troubleshooting suggestions. 15. Perform the Oracle commands to associate the new - Compaq ProLiant 1850R | Modifying Physical Cluster Resources in a Compaq Paralle - Page 11
1,4, or 5 (i.e., your drives have no fault tolerance), you can lose some or all of the data on the failed drive. See the Fibre Channel Storage System User Guide for instructions on replacing a failed drive. ECG001/1298 - Compaq ProLiant 1850R | Modifying Physical Cluster Resources in a Compaq Paralle - Page 12
. The following steps describe how to add a drive to the Compaq Fibre Channel Storage System and how to allocate it to Oracle8 Parallel Server. 1. Physically add the drive(s) to the fibre channel array. 2. Run the Compaq Array Configuration Utility to create the desired RAID logical drives and to
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White Paper
December 1998
ECG001/1298
Prepared by High Availability
Products Group
Compaq Computer Corporation
Contents
Managing Changes to Drive
Ordering
.....................................
3
Symptoms
................................
3
When does this situation
occur?
......................................
3
Preventing the Issue
.................
4
Simplifying Detection of the
Issue
........................................
4
What Oracle Component is
Affected?
..................................
4
Removing a Shared Storage
Array
...........................................
8
Adding a Shared Storage
Array
...........................................
9
Adding or Removing Drives
from a Shared Storage Array ...11
Replacing a Failed Drive
.........
11
Adding a Drive to Increase
Storage Capacity
....................
12
Modifying Physical Cluster
Resources in a Compaq Parallel
Database Cluster
Abstract:
At some time during the life of a Compaq Parallel
Database Cluster it is likely that some modifications to the physical
resources of the cluster will be required. This paper describes how to
perform some of the more likely modifications, such as:
•
Managing Changes to Drive Ordering
•
Removing a Shared Storage Array
•
Adding a Shared Storage Array
•
Adding or Removing Shared Storage Drives
Additional scenarios are described in Chapter 5 of the
Compaq
Parallel Database Cluster Administrator Guide
.