Computer Drive User Manual
Table Of Contents
- Chapter 1. HPSS 7.1 Configuration Overview
- Chapter 2. Security and System Access
- Chapter 3. Using SSM
- 3.1. The SSM System Manager
- 3.2. Quick Startup of hpssgui
- 3.3. Configuration and Startup of hpssgui and hpssadm
- 3.4. Multiple SSM Sessions
- 3.5. SSM Window Conventions
- 3.6. Common Window Elements
- 3.7. Help Menu Overview
- 3.8. Monitor, Operations and Configure Menus Overview
- 3.9. SSM Specific Windows
- 3.10. SSM List Preferences
- Chapter 4. Global & Subsystem Configuration
- 4.1. Global Configuration Window
- 4.2. Storage Subsystems
- 4.2.1. Subsystems List Window
- 4.2.2. Creating a New Storage Subsystem
- 4.2.3. Storage Subsystem Configuration Window
- 4.2.3.1. Create Storage Subsystem Metadata
- 4.2.3.2. Create Storage Subsystem Configuration
- 4.2.3.3. Create Storage Subsystem Servers
- 4.2.3.4. Assign a Gatekeeper if Required
- 4.2.3.5. Assign Storage Resources to the Storage Subsystem
- 4.2.3.6. Create Storage Subsystem Fileset and Junction
- 4.2.3.7. Migration and Purge Policy Overrides
- 4.2.3.8. Storage Class Threshold Overrides
- 4.2.4. Modifying a Storage Subsystem
- 4.2.5. Deleting a Storage Subsystem
- Chapter 5. HPSS Servers
- 5.1. Server List
- 5.1. Server Configuration
- 5.1.1. Common Server Configuration
- 5.1.1. Core Server Specific Configuration
- 5.1.2. Gatekeeper Specific Configuration
- 5.1.3. Location Server Additional Configuration
- 5.1.4. Log Client Specific Configuration
- 5.1.1. Log Daemon Specific Configuration
- 5.1.2. Migration/Purge Server (MPS) Specific Configuration
- 5.1.3. Mover Specific Configuration
- 5.1.3.1. Mover Specific Configuration Window
- 5.1.3.1. Additional Mover Configuration
- 5.1.3.1.1. /etc/services, /etc/inetd.conf, and /etc/xinetd.d
- 5.1.3.1.2. The Mover Encryption Key Files
- 5.1.3.1.3. /var/hpss/etc Files Required for Remote Mover
- 5.1.3.1.1. System Configuration Parameters on IRIX, Solaris, and Linux
- 5.1.3.1.1. Setting Up Remote Movers with mkhpss
- 5.1.3.1.2. Mover Configuration to Support Local File Transfer
- 5.1.1. Physical Volume Repository (PVR) Specific Configuration
- 5.1.1. Deleting a Server Configuration
- 5.1. Monitoring Server Information
- 5.1.1. Basic Server Information
- 5.1.1. Specific Server Information
- 5.1.1.1. Core Server Information Window
- 5.1.1.1. Gatekeeper Information Window
- 5.1.1.1. Location Server Information Window
- 5.1.1.2. Migration/Purge Server Information Window
- 5.1.1.3. Mover Information Window
- 5.1.1.1. Physical Volume Library (PVL) Information Window
- 5.1.1.2. Physical Volume Repository (PVR) Information Windows
- 5.1. Real-Time Monitoring (RTM)
- 5.2. Starting HPSS
- 5.1. Stopping HPSS
- 5.2. Server Repair and Reinitialization
- 5.1. Forcing an SSM Connection
- Chapter 6. Storage Configuration
- 6.1. Storage Classes
- 6.2. Storage Hierarchies
- 6.3. Classes of Service
- 6.4. Migration Policies
- 6.5. Purge Policies
- 6.6. File Families
- Chapter 7. Device and Drive Management
- Chapter 8. Volume and Storage Management
- 8.1. Adding Storage Space
- 8.2. Removing Storage Space
- 8.3. Monitoring Storage Space
- 8.4. Dealing with a Space Shortage
- 8.5. Volume Management
- 8.6. Monitoring and Managing Volume Mounts
- 8.7. New Storage Technology Insertion
- Chapter 9. Logging and Status
- Chapter 10. Filesets and Junctions
- Chapter 11. Files, Directories and Objects by SOID
- Chapter 12. Tape Aggregation
- Chapter 13. User Accounts and Accounting
- Chapter 14. User Interfaces
- Chapter 15. Backup and Recovery
- Chapter 16. Management Tools
6.3.5. Changing a File's Class of Service
The Core Server provides a means to change the class of service of a file. The Core Server moves the
body of the file as appropriate to media in the destination Class of Service, then allows the usual
migration and purge algorithms for the new Class of Service to apply. The file body is removed from the
media in the old Class of Service. If large numbers of files on tapes are changed, an opportunity to retire,
repack and/or reclaim tapes in the old Class of Service may arise.
The scrub utility can be used to initiate the COS change request of a file as follows:
% scrub
scrub> changecos <fullPathname> <newCOSid>
scrub> quit
6.3.6. Canceling a Class of Service Change Request
A Class of Service change request can be canceled in order to deal with a persistent problem in changing
the file.
The scrub utility can be used to cancel the COS change request as follows:
% scrub
scrub> changecos <fullPathname> 0
scrub> quit
The associated Core Server COS change record will be removed immediately. However, this request may
fail if the existing COS change request is currently being processed by one of the Core Server’s COS
change threads. In this case, the user should attempt to reissue the request later.
6.4. Migration Policies
A migration policy is associated with a storage class and defines the criteria by which data is migrated
from that storage class to storage classes at lower levels in the storage hierarchies. Note, however, that it
is the storage hierarchy definitions, not the migration policy, which determine the number and location of
the migration targets. Also, note that a storage class may be used in multiple hierarchies and may have
different migration targets in each.
A basic migration policy must be assigned to any disk or tape storage class that requires migration
services. This basic policy determines the migration parameters for the storage class across all storage
subsystems. Storage subsystem specific migration policies may be added which override the basic policy
in the selected subsystems. The storage subsystem specific migration policies share the migration Policy
ID and Policy Name with the basic policy.
6.4.1. Migration Policies Window
This window displays a list of all the configured migration policies.
HPSS Management Guide November 2009
Release 7.3 (Revision 1.0) 180