IBM High Performance Storage System HPSS, Руководство по установке

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Chapter 6. Upgrading to HPSS Release 6.2
This chapter is only intended for sites upgrading HPSS from either version 4.5 or 5.1 to version 6.2.
Sites wishing to upgrade from prior HPSS releases must first upgrade to HPSS 4.5 or HPSS 5.1.
Sites that are going to install and configure HPSS 6.2 from scratch will not need to perform the
upgrade. The upgrade procedures in this chapter are intended only for HPSS systems running on
AIX.
Due to possible risk of losing HPSS metadata, we strongly recommend that the upgrade
procedure be planned and performed with the help of your HPSS customer support
representative.
HPSS 6.2 replaces DCE with new authentication and authorization mechanisms. As a result, a site
must decide which authentication and authorization mechanisms it wants to deploy. The steps to
performing a upgrade will vary for each site depending on these choices; therefore, not all steps need
to be performed by each site. Additionally, the upgrade documentation that follows is written for
both 4.5 and 5.1 and some steps only apply to the release being upgraded.
The high level steps to performing the upgrade to HPSS 6.2 are outlined below:
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Verify that all prerequisite conditions are met
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Backup the current system
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Obtain, install and configure all necessary software
•
Prepare the upgrade environment
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Install and configure authentication and authorization, if applicable
•
Convert the metadata
•
Convert authorization and authentication mechanisms
•
Tune DB2
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Port prior release data such as configuration file information
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Bring up the HPSS 6.2 servers
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Verify the HPSS 6.2 system
6.1. Special Instructions for Upgrading to HPSS 6.2.2
Version HPSS 6.2.2 includes a new Tape Drive Pooling feature that requires an alteration, adding a
column, to the PVLDRIVE and PVLACTIVITY tables in the HPSS global or configuration database.
A new program is provided to accomplish these two changes. The program is called
hpss_tape_pool.ksh and should be run as the DB2 instance owner or by another user with authority to
create and alter, and select and insert records to/from the PVLDRIVE and PVLACTIVITY tables.
The program should be run only when HPSS is down as it attempts to save the HPSS 6.2 tables in the
event that reversion to HPSS 6.2 is required.
The program starts by creating two tables identical to the HPSS 6.2 PVLDRIVE and PVLACTIVITY
tables called PVLDRIVE_SAVE and PVLACTIVITY_SAVE. Then the program copies all records
in the PVLDRIVE and PVLACTIVITY tables into the new SAVE tables. Finally, the program alters
the PVLDRIVE and PVLACTIVITY tables by adding the new DRIVE_POOL_ID column to enable
the new feature and setting the initial value to 0 since it will not be enabled by default. Contact IBM
Support if an error occurs or if reversion to HPSS 6.2 is needed.
HPSS Installation Guide July 2008
Release 6.2 (Revision 2.0) 179