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Chapter 3 System Preparation
HPSS Installation Guide September 2002 149
Release 4.5, Revision 2
mkhpss then prompts for whether mirroring is desired for this logical volume. If so, it will prompt
for the name of the disk to use as the mirror.
3.4 Setup for HPSS Metadata Backup
• Install and configure the automated SFS backup toolset. Keep in mind the following:
◆ Media archiving must always be enabled while HPSS is in production mode. If it is
ever temporarily disabled (e.g., during a one-time Unitree migration), then before
HPSS is placed back into production mode, media archiving must be re-enabled and a
complete backup of all SFS must be made.
◆ The file systems used to store TRB and MRA files must be mirrored on at least two(2)
separate physical disks or stored on redundant RAID devices.
◆ The latest (i.e., most current) MRA file must never be manipulated, moved, copied, or
deleted since SFS may still be actively writing to it.
◆ MRA files must be copied from disk to at least two(2) different tapes at least once per
day.
◆ A sufficient number of TRB files must be generated such that a complete backup of
each SFS data volume is made at least every 5 days.
◆ TRB files must be copied to at least two(2) different tapes.
◆ At least one image of the tape backups should be moved offsite at a frequency that
meets the site's disaster recovery objectives.
3.5 Setup Tape Libraries and Drives
3.5.1 IBM 3584
If using an IBM 3584 tape library, install the Atape driver, configure the SCSI Medium Changer
(SMC) library device on the node that will run the HPSS LTO PVR, and verify that you can talk to
the library.
To install the Atape driver use smitty in AIX:
% smitty install
To configure the library:
root% cfgmgr
root% lsdev -Cc tape | grep smc
smc0 Available 40-58-00-0,1 IBM 3584 Library Medium Changer
To test communications with the library: