VBrick Systems VB4000 Series, Admin Manual

Page: 61 / 156

WM Configuration
VBrick WM Appliance Admin Guide 51
When this happens, the archiver tracks the combined time and size of all open and closed
files, compares the total to the configured
Archive Duration
and
Archive Maximum File
Size
, and continues recording until the limits are reached. For example, if you configure the
archiver for a two-hour duration, and there is a disruption that forces it to close one file and
open another, the time in file1 plus the time in file2 will equal two hours regardless of how
long the disruption lasted. When the archiver is configured with a duration and a file size set
to 0 (Maximum), the archiver limits are 4 GB or 12 hours, whichever comes first, no matter
how many disruptions occur and how many files are created.
Note Although a 60 GB hard drive can store thousands of files, it is important to
understand that there are certain practices that can adversely affect overall encoder
performance. For example, a large number of small files can consume excessive
memory and therefore limit other encoder functionality. For example, if the hard drive
is nearly full of small files and you have 20 progressive downloads in progress, the
total number of push and pull clients (approximately 200) that can be effectively
supported via HTTP may be significantly reduced. For best results, purge unnecessary
files from your hard drive, avoid creating large numbers of small video files, and
periodically run the Check Disk and Format utilities (see Diagnostics: Hard Drive on
page 117) for more information.