Installation Manual

HP StorageWorks File System Extender Software installation guide for Linux 81
File System Event
Manager
A daemon (service) on the FSE client which receives notification about mount events for the
HSM file system and triggers the startup of the appropriate Hierarchical Storage Manager. The
File System Event Manager process name is fse-fsevtmgr.
forced release Release of all files on an HSM file system, which are on the release candidate list, regardless of
their retention time and file size. Forced release is triggered when the critical watermark of
usage is reached on the HSM file system. The process is stopped in the moment when the high
watermark on the HSM file system is reached. See also ”release”.
formatting A process that partitions a medium into medium volumes, according to the parameters
specified in the FSE media pool configuration. During formatting all data on the medium is
erased. If an FSE medium contains valid FSE user data and you want to format it, you must use
forced formatting.
Full Access Mode
(FAM)
One of the two HSM file system filter operational modes. When HSM file system filter is
operating in Full Access Mode for a particular HSM file system, you are allowed to make
changes to the data located on the HSM file system, and use all the HSM file system
functionality that the FSE system provides. For example, you can create, rename, move or delete
directories and files, and change their data or metadata. In this mode, all data movement
processes (migration, release, recall, deletion) can be executed – by being either triggered
explicitly or started according to the configured FSE partition policies. See also ”Limited Access
Mode (LAM)”.
good medium A usable FSE medium in its fully operational state. In this state, the medium may have any of the
following statuses: uninitialized, free, empty, in use, full. This state lasts as long as
the medium is in a good condition, that is, no write and read errors are detected while writing
data to and reading data from the medium.
Hierarchical Storage
Management
Database (HSMDB)
A database with migration candidate and release candidate lists for files on the HSM file
system. Each FSE partition has its own Hierarchical Storage Management Database.
Hierarchical Storage
Management
Database journal
A file which contains transaction information for Hierarchical Storage Management Databases.
It is designed to increase the database robustness. HSMDB journals contain information about
already applied and pending database transactions. Hierarchical Storage Management
Database journals are located in the directory
/var/opt/fse/part/PartitionName/hsm/journal (on Linux platform) or in the
directory %InstallPath%\var\part\PartitionName\hsm\journal (on Windows
platform).
Hierarchical Storage
Manager (HSM)
A part of the FSE client that handles file system events relevant for the FSE implementation and
enforces migration, release, and recall policies. The Hierarchical Storage Manager process
name is fse-hsm.
Hierarchical Storage
Manager list (HSM
list)
A list of files, maintained by the Hierarchical Storage Manager, which are candidates for
migration or release. HSM lists are: a dirty file list (the list of changed files), a migration
candidate list, and a release candidate list.
high watermark A user-defined value for the high level of disk space usage on an HSM file system. When this
value is reached, a regular release process is started for all files that are on the Hierarchical
Storage Manager's release candidate list and that have passed their migration or recall
retention period, and are larger than the defined MinFileSize.
host
(FSE host)
A computer system that hosts either a consolidated FSE system, an FSE server, or an FSE client.
hot fix
(FSE hot fix)
A package with updated FSE binaries, FSE configuration files, or other FSE system files that are
applied to the FSE implementation at a specific site, in order to solve one or more problems
reported by an FSE customer.