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
If the tape media supports "fast locate", and that feature is enabled for the tape devices, choose larger
values of Seconds Between Tape Marks (SBTM). When reading from the middle of a file on tape, the
fast locate feature is used by HPSS to locate the data block in which a given portion of a file is located,
rather than skipping tape marks and data blocks. When fast locate is enabled, there is no advantage to
using smaller values of Seconds Between Tape Marks (SBTM) for locating positions within files. The
fast locate feature is also know as Logical Block Addressing (LBA).
Blocks Between Tape Marks (BBTM). The maximum number of data blocks (of Media Block Size
(MBS)) that will be written on a tape between consecutive tape marks.
The number of media data blocks between tape marks is calculated by SSM when the Device I/O Rate
(DIOR) and Seconds Between Tape Marks (SBTM) are set. This value is displayed for information
only.
The recording space between tape marks is called a “section”. The PV Section Length is Blocks
Between Tape Marks (BBTM) times the Media Block Size (MBS). The VV Section Length is the PV
Section Length times the Stripe Width (SW).
6.1.4. Storage Class Subsystem Thresholds
These windows allow the user to manage storage class space thresholds which are specific to a storage
subsystem. These windows are accessible only from the Configured Storage Classes window. The user
must first select a storage class from the storage classes list. The selected storage class will be referred to
as the ‘parent’ storage class to the subsystem threshold window which is opened when the storage class
is selected.
Each Storage Class Configuration window has fields for Warning Threshold and Critical Threshold.
By default, these thresholds apply to all storage subsystems using the storage class. However, the storage
class thresholds can be overridden by configuring a subsystem-specific threshold allowing a storage
subsystem to have its own customized set of Warning Threshold and Critical Threshold values.
After creating or modifying any thresholds, the Core Server and Migration Purge Server for the affected
subsystem must be recycled to make the changes effective.
Related Information
Section 4.2.3.8: Storage Class Threshold Overrides on page 81.
6.1.4.1. Disk Storage Subsystem-Specific Thresholds
HPSS Management Guide November 2009
Release 7.3 (Revision 1.0) 166