1.1.12. Drive Pools
HPSS provides HPSS end clients the ability to direct tape read I/O requests to a predefi ned group of
tape drives referred to as a Drive Pool. This ability helps HPSS administrators manage ta pe drive
scheduling and thus availability. For more information, please refer to Section 7.3: Driv e Pools of the
HPSS Management Guide.
1.1.13. FTP Enhancement
•FTP application mode: FTP can be compiled as either a 32-bit or a 64-bit application, by
setting the BIT64_SUPPORT flag on or off in the Makefile.macros file, when building with
the HPSS FTP source extracted with "build-ftp" option. The 64-bit Kerberos libra ries will be
required to support Kerberos authentication.
•PFTP client is now supported on Solaris 10 (Intel/AMD only).
1.1.14. mkhpss Enhancement
A new option is provided by mkhpss to configure the DB2 log mirroring capability to better protect
the DB2 transaction log files. DB2 log mirroring allows the database to write an identica l second
copy of log files to a different path. The DB2 log files are essential in prot ecting a database and
enable transactions occurring after a database backup to be recovered. Loss of the DB2 log files can
result in significant impact to the operation of the system, extensive downtime, and potenti al loss of
data. It is vital that DB2 log files be stored on highly reliable disk systems. In addition, DB2 log
mirroring must be used to protect the DB2 log files on two separate disk systems. The disk systems
must also be protected using RAID1 or RAID5 configurations. This mkhpss enhancement can only
be used for new HPSS installations. For existing sites, please consult with your HPSS Support
Representative for assistance.
1.1.15. DB2 Monitoring
A new feature to have the HPSS DB2 Log Monitor periodically checks the DB2 transaction log files
to make sure that the primary and mirror logs are congruent and performing normally. It also scans
the DB2 diagnostic log for indications of problem with the DB2 log files. For each identifi ed
problem, it will issue an HPSS alarm and indicate the path of the diagnostic log and the line number
where the error is reported. The administrator should then open the DB2 diagnosti cs file and
examine the reported problem in detail.
1.1.16. File Family enhance ments
The number of allowed file families is increased to 4,294,967,295. In addition, authorized callers can
assign the File Family ID of a file via the hpss_FileSetAttributes Client API function, independent ly
of the underlying fileset.
1.1.17. SSM Configuration Files Consolidation
The SSM configuration files ssm_krb5.conf and ssm_unix.conf have been consolidated into a si ngle
configuration file called ssm.conf. Users may continue using their existing configuration file by
specifying the "-m" option to the hpssadm.pl or hpssgui.pl script, or they may rename their existing
configuration file to ssm.conf. For environments with multiple authentication mechanisms, it may be
desirable to maintain multiple configuration files.
HPSS Installation Guide July 2008
Release 6.2 (Revision 2.0) 17