Table of Contents
Chapter 1: Introduction to the Mass Storage System 1-1
1.3.3 Protocols for Communicating with dCache 1-4
Chapter 2: Data Storage in Enstore 2-1
2.2 File Organization on Storage Media 2-1
2.4 Data Storage Volumes in Enstore 2-4
2.4.2 File Organization, Storage and Access 2-4
2.4.4 Import/Export of Volumes 2-5
Chapter 3: Getting Ready to Use Enstore and dCache 3-1
3.1 Initial Steps for All Users 3-1
3.2 Further Steps for Direct Access Enstore Users Only 3-2
4.1 UNIX Commands You can Use in PNFS Space 4-1
4.2.1 PNFS Directory Limitations 4-2
Chapter 5: Using the dCache to Copy Files to/from Enstore 5-1
5.1.1 Authentication Mechanisms 5-2
5.1.4 The dc_stage Command 5-3
5.1.5 The dc_check Command 5-4
5.1.6 Syntax and Examples (PNFS Not Mounted Locally) 5-4
5.1.7 Syntax and Examples (PNFS Mounted Locally) 5-4
5.2.2 GSI FTP with globus-url-copy 5-6
5.2.3 Storage Resource Management (SRM) 5-6
5.2.5 GSI FTP with Kftpcp (Deprecated) 5-8
5.3.1 Prepare to use Kerberized FTP 5-9
5.3.2 Sample Kerberized FTP session 5-10
5.4 Kerberized FTP via the kftpcp Command 5-10
5.5 Weakly-Authenticated FTP Service (Read-only) 5-12
Chapter 6: Copying Files with Encp 6-1
6.2 Encp Command Syntax and Usage 6-2
6.3 Copy Files to and from Enstore Media 6-2
6.4 Additional Diagnostic Executables 6-3
6.5.1 Preventing Unwanted Overwriting 6-6
6.5.3 Encp Transfer Rates Defined 6-6
6.5.4 Isolating Source of Bottlenecks 6-7
6.5.6 Finding files in different Enstore systems 6-8
6.5.7 Order of Processing Queued Requests 6-9
6.5.8 NULL File Directories 6-9
6.5.9 Important Environment Variables 6-9
Chapter 7: Copying Directory Structures with Ensync 7-1
Chapter 8: Overview of the Enstore Servers 8-1
Chapter 9: Enstore Commands 9-1
9.5 enstore file (deprecated) 9-17
9.6 enstore volume (deprecated) 9-19
Chapter 10: Monitoring Enstore on the Web 10-1
10.1.1 Enstore System Status Links 10-2
10.2 Header Format for Status Pages 10-3
10.3 Mass Storage Status-At-A-Glance Page 10-4
10.4 Enstore Server Status 10-6
10.6 Library Manager Queues 10-11
10.6.4 Additional Movers 10-14
10.7 Full Library Manager Info 10-14
10.8 Tape Inventory Page (Text) 10-16
10.12 Enstore Active Alarms 10-23
10.16 Tape Inventory Page (Dynamic HTML) 10-29
Chapter 11: Job Priority and Queue Management 11-1
11.1 Job Priority Categories 11-1
11.2 Numerical Priority Values 11-2
11.3 Fair Share Resource Allotment 11-2
Appendix A. Network Control A-1
A.1 Default Routing for Encp A-1
A.2 Routing via the enstore.conf File A-1
Appendix B. Changing PNFS Tags B-1
B.2 Permissions and Ownership B-1
Appendix C. FTP: Problems in Grid Environment C-1
C.1 Problems with Partial Files C-1