Special Purpose Tools

hsi/htar for HPSS access:

Sample command:

hsi put local_file : hpss_file
hsi get hpss_file

The number of parallel streams you use is determined by which HPSS "class of service" you are using. To adjust the TCP buffer size, look for SendSpace/RecvSpace in your hpss.conf file: For example:

Network Options = {
   Default = {
      NetMask = 255.255.0.0
      RFC1323 = 1
      SendSpace = 4MB
      RecvSpace = 4MB
      WriteSize = 128KB
      TcpNoDelay = 1
   }
}

Note that in general PFTP is faster than hsi/htar.  Like HSI, PFTP is generally only available at large supercomputer centers. 

• Indiana University Pervasive Technology Institute PFTP documentation
• LLNL PFTP documentation
• NERSC PFTP documentation
• ORNL PFTP documentation

For best performance across a WAN, use the GridFTP interface to HPSS at sites where it is available.