Disk File Optimizer V3.0
Software
Product
Description
PRODUCT NAME: HP Disk File Optimizer SPD 55.85.15
for OpenVMS,Version 3.0
DESCRIPTION
HP Disk File Optimizer (DFO) for OpenVMS is a layered
software product which reduces both file fragmentation
and free space fragmentation and optimizes file place-
ment on disk media. This results in better application
performance, better backup performance, and more ef-
ficient disk utilization.
DFO operates in two modes. In "Defrag PLUS" mode,
RMS is used as a database of scheduling information,
and defragmentation jobs can be scheduled using a
wide variety of scheduling criteria. In normal "Defrag"
mode, defragmentation jobs are run when requested
by the user. The user or system manager can spec-
ify which of these two modes should be used when the
product is installed.
The key capabilities of DFO for OpenVMS are:
• Defragments large capacity disk that was earlier lim-
ited to a smaller capacity disk on OpenVMS Integrity
Servers and Alpha
• Reduces file fragmentation and free space fragmen-
tation for disk devices
• Provides the ability to defragment specific files or an
entire disk
• Gives the user the capability to select or exclude spe-
cific files based on:
— User choice
— Severity of fragmentation
— Whether the file has placement pointers
— Whether the files are indexed
• Provides event based scheduling of defragmentation
jobs
• Provides a Monitor function which allows File Opti-
mizer processes to be monitored while in operation
• Allows pre- and post-processing commands to effect
automation of tasks before and after defragmentation
jobs are executed
• Gives the user the ability to classify files as "hot" (fre-
quently accessed), or "cold" (infrequently accessed)
and to have them placed on the disk drive accord-
ingly
• Provides two modes of operation to tailor to the spe-
cific customer environment
• Offers a choice of Digital Command Line (DCL) or
Motif-based Graphical User Interfaces. This is avail-
able for both Defrag and Defrag PLUS modes.
• Provides an offline defragmentation utility that allows
the user to defragment INDEXF.SYS on a disk device
that is not mounted. For a bound volume set this
utility only works on the "ROOT" volume.
CLUSTER ENVIRONMENT
HP Disk File Optimizer qualifies defragmenting disks
connected to OpenVMS Integrity server, Alpha or VAX
machines from any qualified Integrity server, Alpha or
VAX machine. It is fully qualified when installed on any
valid and licensed VMScluster* configuration without re-
strictions. The HARDWARE REQUIREMENTS section
of this product’s Software Product Description details
any special hardware required by this product.
*VMScluster configurations are fully described in the
VMScluster Software Product Description (29.78.xx)
and include CI, Ethernet, and Mixed Interconnect con-
figurations.
June 2007