7—Project and Drive Operations
Roland VS-2400CD Owner’s Manual www.RolandUS.com 107
Drive Operations
Before proceeding with the PROJECT menu’s hard drive- and drive-related operations,
here’s some information about keeping your hard drive operating at its best.
Disk Maintenance
As with any piece of sophisticated electronic equipment, you hard drive requires a bit
of maintenance from time to time in order to perform at its best.
When you shut down the VS-2400CD correctly (Page 78)—instead of just switching it
off—you’re performing simple everyday maintenance, letting the VS-2400CD properly
conclude disk operations, storing your latest work safely on the currently selected drive
before shutting down.
In addition, you’ll want to make sure your hard drive doesn’t begin to show signs of
“fragmentation,” which can slow down the VS-2400CD and cause other problems.
Fragmentation
What Is Fragmentation?
When a hard drive has first been set up and has lots of free space, your VS-2400CD can
write each file’s data in one single, continuous area of the hard drive. When the file is
played back, the VS-2400CD only has to look in one place to find all the necessary data.
When a hard drive has been in use for a while, however, the empty spaces for writing
new data become smaller and smaller. This occurs for a few reasons:
• There’s simply less free space.
• New data for each project may be written far away from the rest of the project data
when you’ve got several projects taking up space on the hard drive.
• When you optimize a project (Page 96) to free up disk space, small chunks of unwanted
data are discarded, leaving small areas of free space.
When the VS-2400CD stores new files, it squeezes them
into any bits of space it can find. As a result, the data winds
up scattered all over the hard drive. When the data is stored
in such little bits and pieces, the hard drive is said to be
“fragmented.”
When the VS-2400CD plays back a file from a fragmented
hard drive, it has to grab a little piece from here, another
piece from there and so on. This is much harder than
simply playing one continuous chunk from a single hard
drive location, and it takes more time. This can slow things
down unacceptably and lead to errors during playback, recording or backup.
A reminder: each disk drive partition appears in the VS-2400CD’s project list as a
separate drive. As we noted in Chapter 6, when we refer to a “drive,” we mean a
partition. When we refer to an entire hard drive mechanism, we call it a “hard drive.”
This distinction is
very
important to remember in the following sections.
With fragmentation, little bits
and pieces of a file are
written all over the drive.
VS2400OMUS.book 107 ページ ２００６年２月２８日 火曜日 午前１１時１２分
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