Visual Circuits ReelTime 4, Руководство пользователя

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Appendix
62
Hard Disks
Servers running 1- 4 channels require only a single IDE disk drive.
NT Workstation is installed on the first partition of the disk in C:\
using approximately 800 MB of disk space. (This amount of disk
space is recommended in order to perform future software
upgrades to NT or other applications. Playback software and
drivers require only minimal disk space >10MB.) The partition for
MPEG file storage and playback can then be created with the
remaining disk space. Systems with 5 channels and above require
SCSI drives for content storage and playback. Disk transfer rates
(seek time) can be a limiting factor depending on the number of
channels used and the data rate (bit rate) of the files to be read.
SCSI controllers can be on board (imbedded in the motherboard)
or in the form of an adapter card taking a PCI slot. Make sure that
the transfer rate of the hard drive is set to 40mbytes per second in
the BIOS and that the width is set to 16bits (Wide SCSI). This is
sometimes called SUPPORT FOR UTRA SCSI SPEED
ENABLED. The default setting for this value is often incorrect.
LVD SCSI drives allow for the length of the SCSI cable to be
extended and provide a clearer data transfer mode. However, with
LVD drives some swap bay cartridges and terminators may need to
be upgraded.
Chassis
With multiple cards in the system, it is important to have air
moving over the cards. Card guides and brackets ensure that
impact on the shipping container does not dislodge the cards from
their slots.