AIT-2 vs. Others
  AIT-2 SLR100 Mammoth2 VXA-2
Capacity and Performance
Max Native Capacity 50GB 50GB 60GB 80GB
Max Compressed Capacity 130GB 100GB 150GB 160GB
Max Native Transfer Rate 6MB/s 5MB/s 12MB/s 6MB/s
Max Compressed Transfer Rate 15MB/s 10MB/s 30MB/s 12MB/s
Average File Access Time <27 sec 58-89 sec 52 sec N/A
Average Media Load Time <10 sec <30 sec 17 sec 20-30 sec
Technology
Recording Format Helical-Scan Advanced Linear Helical-Scan Helical-Scan
Form Factor 3.5" HH 5.25" HH 5.25" HH 5.25" HH
Media Type 8mm - AME+ QIC - MP 8mm - AME 8mm - AME
Automatic Head Cleaner Yes No Yes No
Buffer Size 10MB 8MB 32MB 2MB
Auxiliary (Cartridge) Memory Yes, 64 Kbit MIC No No No
Power Consumption 12 watts 23.1 watts 16 watts 10 watts
SCSI Interface Ultra Wide Ultra Wide Ultra Wide Ultra2 Wide
Reliability*
MTBF (Hours) 300,000 300,000 300,000 300,000
Duty Cycle 100% 100% 100% 12%
Head Life (Hours) 50,000 10,000 50,000 N/A
Media Uses (end-to-end passes) 30,000 N/A 20,000 N/A
Media Archival Life 30 years >20 years N/A 30 years
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