HPSS Installation Guide September 2002 5
Release 4.5, Revision 2
Metadata Monitor..................................................................................................77
NFS Daemons........................................................................................................77
Startup Daemon.....................................................................................................78
Storage System Management ................................................................................79
HDM Considerations.............................................................................................79
Non-DCE Client Gateway.....................................................................................81
2.7 Storage Subsystem Considerations..........................................................................81
2.8 Storage Policy Considerations..................................................................................81
Migration Policy....................................................................................................82
Purge Policy ..........................................................................................................84
Accounting Policy and Validation ........................................................................85
Security Policy ......................................................................................................87
Logging Policy ......................................................................................................89
Location Policy......................................................................................................89
Gatekeeping...........................................................................................................90
2.9 Storage Characteristics Considerations ..................................................................91
Storage Class .........................................................................................................93
Storage Hierarchy................................................................................................101
Class of Service...................................................................................................102
File Families........................................................................................................105
2.10 HPSS Sizing Considerations...................................................................................105
HPSS Storage Space............................................................................................106
HPSS Metadata Space.........................................................................................106
System Memory and Disk Space.........................................................................132
2.11 HPSS Performance Considerations.......................................................................135
DCE.....................................................................................................................136
Encina..................................................................................................................136
Workstation Configurations ................................................................................137
Bypassing Potential Bottlenecks .........................................................................137
Configuration.......................................................................................................138
FTP/PFTP............................................................................................................138
Client API............................................................................................................139
Name Server........................................................................................................139
Location Server ...................................................................................................139
Logging ...............................................................................................................140
MPI-IO API.........................................................................................................140
Cross Cell ............................................................................................................141
DFS......................................................................................................................141
XFS......................................................................................................................141
Gatekeeping.........................................................................................................142
2.12 HPSS Metadata Backup Considerations...............................................................142
Rules for Backing Up SFS Log Volume and MRA Files ...................................143
Rules for Backing Up SFS Data Volumes and TRB Files..................................143
