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600716 Rev A Operating Tasks 2-35
Operaitng Tasks
Overflow Policy The HIBLK_THRESHOLD and LOBLK_THRESHOLD system
variables are located in the
fs_sysparm file. These variables
are system-wide parameters.
FileServ reads the new values at startup time. If FileServ is
running, you must recycle the system to pickup the new values.
If the overflow
hiblk value is reached for a file system, the
$FS_HOME/internal/policy_dir/fs_spt_ovflow
script is automatically invoked. This script is used for:
• Emergency situations when routine data cleanup is not
maintained for a file system,
• Or, when data is rapidly stored to the disk before the routine
storage policy reacts.
• Using the fspolicy Command
The
fspolicy command is run to store eligible files from disk
tomediaortotruncatefilesondiskthatarefullystoredto
media
A store request is processed in two ways:
Note
SGI ONLY: If HIBLK_THRESHOLD and
LOBLK_THRESHOLD parameters are not given to a file
system, the emergency script is never invoked for that file
system, regardless of the disk usage.
Note
For more information on the fspolicy command, refer to the
Command Reference book.