Command Reference Guide

2.2 NAME 13
global configuration (backup, trace and CORBA/omniORB configuration files).
Offline files on HSM file system are backed up as sparse files. These files practi-
cally do not occupy any space on backup medium.
FSE backup usually runs in background, started automatically by cron or similar
utilities. A special lock file backup.pid is used to prevent starting multiple backup
processes in parallel.
ACTIVITY LOGGING FSE administrator usually consults the fse.log file to
figure out backup start and stop times. These times are used to estimate the re-
quired backup window. Additionally, fsebackup records its progress report to
the backup.log file (see section FILES). When backup successfully finishes, it
reports barcodes of the FSE backup media the backup data had been written to.
CONFIGURATION On Linux, administrator needs to configure some parame-
ters in backup.cfg configuration file. The configurable parameters and their default
values are the following:
• HSM_LV_VAR = hsm_vg/var
Name of the LVM volume group and the LVM logical volume used to store
file system for the /var/opt/fse mount point.
• HSM_LV_PART = hsm_vg/part
Name of the LVM volume group and the LVM logical volume used to store
file system for the /var/opt/fse/part mount point.
• SNAPSHOT_PCT = 10
Size of the LVM logical volume snapshot, expressed in percentage of the
original LVM logical volume size.
If the /etc/opt/fse/backup.cfg file is not found, default values are used for the FSE
backup process.
2.2.3 OPTIONS
• –m, – –media
File System Extender 3.2 Command Line Reference