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Pro Tools HD for Mac OS X — Hard Drive Minimum Requirements

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Storage Overview

Storage requirements have not changed from previous versions of Pro Tools. As with all Pro Tools systems, drive performance depends on a number of factors, including track count, edit density, CPU speed, single or dual processors, and the use of crossfades or processing like Beat Detective. For sessions with high edit density, we recommend the following configurations. Testing has been conducted using Digidesign's DigiDrives and Avid MediaDrives. Performance with other drives may vary.

• Dedicated audio drive or drives (internal or external). Recording to or playback from system drives is not supported.
• Support for SATA, IDE/ATA and FireWire drives, listed below.
• When using QuickTime movies with Pro Tools HD systems, for reliable performance of 16 or more audio tracks, video should be stored on a separate drive.

Macintosh Journaled File System Recommended for Pro Tools

Mac OS X 10.4 incorporates a journaled file system, which will automatically log any file modifications. If your computer crashes badly enough to require a restart (or a restart from a power failure), the OS will then use the journal to aid in fixing any disk problems caused by the crash.

Mac OS X 10.4 ships with journaling on by default. Digidesign now recommends that customers format their media drives with journaling turned on. When using Apple's Disk Utility program to format drives, Digidesign recommends choosing 'Mac OS Extended (Journaled)' format, instead of 'Mac OS Extended.'

Note: Mac OS 10.4 includes two new formatting options:

• Mac OS Extended (Case-sensitive, Journaled)
• Mac OS Extended (Case-sensitive)

Digidesign has not tested these new formatting options with Pro Tools, and therefore these are not recommended. Please choose the following option for drive formatting:

• Mac OS Extended (Journaled)

Optional Digidesign & Avid Storage

SCSI

• Avid MediaDrive rS300/320 LVD
• Avid MediaDrive rS146/320 LVD
• Avid MediaDrive rS73/320 LVD
• Avid MediaDrive rS36/320 LVD
• Avid MediaDock Shuttle iS146/320 LVD
• Avid MediaDock Shuttle iS73/320 LVD
• Avid MediaDock Shuttle iS36/320 LVD
• Avid MediaDock Dual
• Avid MediaDock Dual+
• DigiDrive MediaDock
• DigiDrive SCSI Drives
• SCSI-128 Kit
  • Includes ATTO ExpressPCI-UL3D
  • Qualified for up to 192 tracks @48 kHz on Pro Tools HD Accel systems
  • Power Mac G4 & G5 PCI Models Only
    (Not compatible with Power Mac G5 PCI Express models)

Not compatible with Power Mac G5 or tested with Pro Tools 6.9 and higher:

• SCSI-64 Kit/ATTO ExpressPCI-DC

Power Mac G5 PCI Express Models

The following PCIe storage host adapter card is now qualified with the Power Mac G5 PCI Express models:

• ExpressPCI UL5D - Dual-channel Ultra320 PCI Express SCSI Host Adapter

FireWire

• Avid MediaDrive rS80
• DigiDrive FireWire 80

Important Information for Avid rs80 and rs250 Users on Mac OS X

SCSI Hard Drives

Supported SCSI Cards for Qualified Power Mac Models

• ATTO ExpressPCI UL5D - Dual-channel Ultra320 PCI Express SCSI Host Adapter
  • Power Mac G5 PCI Express models only
  • Qualified with Pro Tools HD 7.1 and higher only
• ATTO ExpressPCI UL4D - Dual-channel Ultra320-to-PCI-X SCSI Host Adapter
  • Power Mac PCI models only
  • Qualified with Pro Tools HD 7.0 and higher only
• ATTO ExpressPCI UL3D - Dual-channel Ultra160 SCSI Host Adapter
  • 33 MHz model only
  • Included with Digidesign SCSI 128 Kit

For more information, please see the following page:

SCSI Drive Requirements

• SCSI interface: Wide single-ended or low-voltage differential (LVD or Ultra 160)
• Disk drive rotational speed: 10,000 RPM or faster
• Buffer Size: 512K or larger
• Drives must be dedicated for audio (internal or external)
• Mac OS file system: Mac OS Extended (also known as HFS+ format)
• Mac OS Standard (HFS) formatted drives can be used for transfer, but are not recommended for recording or playback
• Windows NTFS or FAT32 formatted drives supported on Mac OS X for transfer only
• Pro Tools does not support RAID technology. Please do not activate this feature on any Pro Tools recording drives.
• Supported formatting utility for IDE/ATA, SATA, FireWire, or SCSI drives: Apple Disk Utility, included with Mac OS X

Formatting Instructions

1. Open from the following location: Applications->Utilities->Disk Utility, or in the Apple Menu when booted from the OS X installation CD.
2. From the list of drives on the left, select the actual drive (the one on top, with the GB and drive manufacturer listed) rather than the user defined name of the drive below it.
3. Choose either the Erase or Partition tab
4. Choose Mac OS Extended (Journaled)
5. If you plan on using your drive on both Mac OS 9 and Mac OS X, check the box next to 'Install Mac OS 9 Drivers'.

Note: partitioning is not an option using the Erase command. To increase performance and improve seek time Digidesign recommends that you allocate a portion of your hard drive for recording. In Pro Tools, Choose Setups/Preferences and click Operation. Under the Open Ended Record Allocation option, select Limit To and enter a number of minutes to be allocated.

ATTO Utilities

ATTO ExpressPCI Configuration Tool

You must install this if you are using a Digidesign SCSI 128 or ATTO EPCI-UL3D SCSI Host Bus Adapter card with a Mac OS X system.

The cards listed above control the flow of SCSI data to and from your computer, and they must have the proper firmware and be set correctly for maximum performance. If you are using one of these cards, you will need the ExpressPCI Configuration Tool. The ATTO ExpressPCI Configuration Tool can be downloaded from the ATTO website:

The Configuration Tool will allow you to update your firmware and set up your SCSI host bus adapter correctly. For important information on how to update your firmware for Mac OS X 10.3 'Panther' compatibility, please see the ATTO Utilities Read Me:

Hard Drives

Hard drive families from the following manufacturers are recommended:

* First generation DigiDrives are not supported in LVD mode

Notes

• Pro Tools has a single audio file size limit of 2048MB. This equates to about 4.5 hours at 24-bit, 44.1 kHz.
• High Speed Drives require manufacturer-approved enclosure to ensure correct heat dissipation, required for sustained drive reliability.

Storage Stats

Approximate Storage Consumption (Megabytes per Minute per Track)

As with all Pro Tools systems, drive performance depends on a number of factors, including track count, edit density, and the use of crossfades or processing like Beat Detective. For sessions with high edit density, we recommend the following configurations. Testing has been conducted using Digidesign DigiDrives and Avid MediaDrives. Performance with other drives may vary.

SCSI Drives — Approximate Track Counts for Power Mac G4, Dual 1.25 GHz model
(slower G4 models may have lower track/voice counts)

SCSI Drives — Approximate Track Counts for Power Mac G5

SATA Hard Drives

Internal SATA drives are qualified for up to 32 tracks at 44.1/48 kHz with Pro Tools HD and Pro Tools HD Accel systems on Power Mac G5 models.

• Dedicated recording drives only, recording to the startup drive is not supported.
• External SATA drives not tested

IDE/ATA Hard Drives

IDE/ATA drives meeting the following requirements are qualified for up to 32 tracks at 44.1/48 kHz with Pro Tools TDM systems:

FireWire 400 Hard Drives

The Avid MediaDrive rS80, DigiDrive FireWire 80, and third-party 7200 RPM FireWire 400 drives with the Oxford 911 chipset have been qualified with Pro Tools HD and Pro Tools HD Accel systems for the following:

• Supported track count (per drive): 24 tracks per drive at 48 KHz/24-bit @ 2000ms edit density
• Maximum 8 drives for a total of 192 tracks at 48 KHz/24-bit @ 2000ms edit density
• Pro Tools HD Accel systems: maximum 192 tracks

FireWire 400 Drives — Approximate Track Counts:

* Track/voice count at 44.1/48 kHz may vary depending on CPU speed and processor count.

For more information and specific requirements for using FireWire drives, see FireWire Drive Requirements

Granite Digital Mac OS 10.4 'Tiger' Support Notice

• Granite FireWire 400 ATA6 (larger than 120gigs) are now compatible with Tiger
• You will need to download the software fix from Granite Digital

FireWire 800 Hard Drives

FireWire 800 drives with the Oxford 912 interface have been qualified for record and playback with the following systems on Mac OS 10.4:

• Pro Tools HD and Pro Tools HD Accel Systems (with Pro Tools 6.9.2 or higher)
• Pro Tools LE Systems (with Pro Tools LE 6.9.2 or higher)
• Mac OS 10.4 'Tiger' only (not tested on Mac OS 10.3 and earlier or Windows XP)
• Please Note: Hard drives using the Oxford 912 interface have USB 2.0, FW400 and FW800 ports on them. Only the use of the FW800 port is supported on these drives with Pro Tools.
• Up to 4 FireWire 800 daisy-chained drives supported when used without other FireWire drives

Known Issues

32-Bit vs. 64-Bit Chassis

• With a 32-bit expansion chassis, a –6042 error will occur at 192 kHz Sample Rate when playing over 20 tracks. The qualified 64-bit chassis will allow up to 36 tracks @ 192 kHz on Power Mac G4, and up to 24 tracks @ 192 kHz on Power Mac G5.

Important Note About Mixing Drive Types With Pro Tools HD Systems

• You cannot spread audio files from one session across different types of drives. For example, if you have a session with audio files on SCSI drives, you cannot record or play back Pro Tools files from an IDE/ATA or FireWire drive. (this applies to audio files only, video can be on a different type of drive, or the same type of drive as the audio files in a session)