Tandem Failure Data System (TFDS) Manual

Managing and Configuring TFDS
HP Tandem Failure Data System (TFDS) Manual—540122-003
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Configuring TFDS
3. The TFDS monitor considers other volumes on the system that are not present in
the list of DISALLOWED-VOLUMES. If a virtual disk is found, space-checking is
not performed, and the virtual disk is automatically selected. If a virtual disk is not
found, the largest volume that has sufficient space for the incident files is selected.
TFDS does not spread files from a single incident across disk volumes or subvolumes.
Unless additional resources are available on other volumes, the files should be backed
up to tape as quickly as possible to free the disk space. (See BACKUP on page 3-10.).
Configuring TFDS
When you start TFDS, its configuration is determined by the contents of the TFDS
configuration file, TFDSCONF, which is located in the TFDS execution subvolume
(usually $SYSTEM.ZTFDS). If no configuration file exists, one containing Default
Configuration Settings is created.
You can alter the TFDS configuration by:
•
Making Changes Interactively
•
Editing the TFDS Configuration File
Note. For a Processor Down incident on DMR and TMR processors, even if a processor dump
file does not need to be saved (for example, if AUTODUMP is OFF), disk space is still needed
to create a temporary processor dump file. The temporary file is needed so analysis can be
performed while building a failure signature for use in rediscovery analysis. After the analysis is
performed, the temporary dump file is deleted.
Caution. Although TFDS can accept several dump requests simultaneously, several
RCVDUMPs running concurrently place a heavy load on a system. For a description of using
this configuration parameter to limit the number of concurrent dumps TFDS can run, see
MAXCONDUMPS
on page 3-28.