AJA KONA 3G Installation And Operation Manual page 17

KONA 3G Installation and Operation Guide — System Requirements
Parity provides data protection without requiring complete duplication of the drive contents. In
the event of a drive failure, parity information can be used with data on surviving drives to
reconstruct the contents of a failed drive. Parity data can be stored on a dedicated drive, as in
RAID 3, or distributed across an array of drives, as in RAID 5. Parity provides much greater
storage efficiency than mirroring-up to 85 percent for a set of seven drives.
Software For Striping
AJA recommends the Disk Utility software provided by Apple with OS X for creating and striping
RAIDs, including 3rd-party, SCSI and Fibre Channel RAIDs. This utility can be found in Macintosh
HD/Applications/Utilities, where "Macintosh HD" is the name of the system drive.
Storage Example: AJA KONA 3G for Dual Link HD and 2K resolutions
AJA can recommend the following examples of drive configurations to support certain specified
video and digital film resolutions and their associated bandwidth requirements. If a particular
drive array or manufacturer is not listed, it may simply be because AJA has no experience with
the company or a particular unit. This guide simply offers examples that AJA has used with
success when working with the specified formats listed. With any device, actual results may vary
from unit to unit and proper configuration of the drive array and any ancillary items such as host
bus adapters, software drivers and cabling is assumed.
Supports 2K, Dual Link HD, Single Link HD, SD:
• G-Technology, Inc. GSPEED-XL (4Gb Fibre Channel)
Unit must be fully populated and with a minimum 512MB cache per controller.
• InforTrend EonStor A16F-G2422 (4Gb Fibre Channel)
Unit must be fully populated and with a minimum 512MB cache per controller.
•
Any drive array with comparable specifications to the above examples; 16 or more SATA
drives with 4Gb fibre channel connectivity to host and 512MB cache per controller.
Storage Capacity
No matter which storage system you choose, pick one that can scale to meet your needs over
time. Ideally, you should be able to increase storage capacity or switch to a RAID level offering
increased data protection in the future. Balance current and future storage needs with your
budget and choose accordingly.
Note: All of the following numbers are approximations based on 2 channels of 48kHz audio.
More audio channels can increase data rates. AJA also provides a freeware application
called the AJA DataCalc that can be used to help determine the amount of storage space
and bandwidth requirements needed for a selected format, frame rate, audio setting and
compression. The AJA DataCalc application is also included with version 3.3 and higher of
the KONA driver and can be found in the AJA Utilities folder which installs in the
Applications folder of the Mac OS. The AJA DataCalc application can also be downloaded
from the AJA website and used on any OSX computer.
FORMAT
SD Formats
10-bit 4:2:2 SD (NTSC/PAL)
8-bit 4:2:2 SD (NTSC/PAL)
DV50(NTSC/PAL)
DV25(NTSC/PAL)
Photo JPEG SD (NTSC/PAL)
HD Formats
10-bit 4:2:2 1080i 59.94Hz/29.97fps
8-bit 4:2:2 1080i 59.94Hz/29.97fps
10-bit 4:2:2 1080i 50Hz/25fps
8-bit 4:2:2 1080i 50Hz/25fps
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Storage
Data Rate in
Requirement in
MB/sec
GB/Hour
28 101
21 76
7 27
3.6 14
2.5 9
166 597
124 448
138 498
104 373
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