User guide

SCSI64 Kit
What is the recommended Sync Rate for drives connected to the ATTO card?
When formatting drives with the ExpressPro-Tools control panel should I use the digital audio option?
What should the drives be formatted as, HFS (Mac OS standard) or HFS + (Mac OS extended)?
How should I configure wide and narrow devices on the ATTO SCSI bus?
Do I need to use an active terminator on the end of my SCSI chain?
What is the Inhibit driver loading option in ExpressPro-Tools, and when should I use it?
How long should my SCSI cables be?
When formatting drives with ATTO ExpressPro -Tools, should I do a High-Level Initialization or Low-Level format?
I'm getting a two DSI error when booting the system, what can I do to get around this?
[3990]
What is the recommended Sync Rate for drives connected to the ATTO card?
Digidesign recommends setting the sync rate to 20 (10) for all drives to reduce the load on the PCI bus. This is the
default setting for the SCSI 64 kit, other default settings include: Termination set to Automatic, PCI burst rate set
to 32, Synchronous Transfers Enabled, Wide Transfers Enabled, Allow Disconnect Enabled, LUN's Enabled.
SCSI64 Kit Index | All FAQ Index
[3991]
When formatting drives with the ExpressPro-Tools control panel should I use the digital audio option?
Yes, Digidesign recommends using this option on recording drives for use with Pro Tools. Non audio drives do not
need to use this option.
SCSI64 Kit Index | All FAQ Index
[3992]
What should the drives be formatted as, HFS (Mac OS standard) or HFS + (Mac OS extended)?
Either HFS or HFS + is supported in Pro Tools 5.0 and up. However, for compatibility with older versions of Pro
Tools (prior to 5.0), drives should be formatted as HFS (Mac OS standard).
Due to the greater number of allocation blocks with HFS+, you will experience longer "prime times" when recording.
In other words, you will experience a delay between the time you initiate recording and the time recording actually
gets underway. Other than that, there is no perceivable difference in performance between HFS+ and HFS.
There is a preference in Pro Tools 5.x that allows the user to specify the length of record time. By limiting the
allocated hard drive space the "prime time" can also be shortened.
To limit the space for recording:
1. Choose Setups > Preferences and click Operation.
2. Under the Open Ended Record Allocation option, select Limit To and enter a number of minutes to be allocated.
The number of minutes specified is allocated for each record-enabled track. You may find it necessary to
experiment with this number to achieve the desired performance and recording.
SCSI64 Kit Index | All FAQ Index
[3993]
How should I configure wide and narrow devices on the ATTO SCSI bus?