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AIT stands out above other tape technologies for its innovative design, capacity, performance and durability with a scalable product family that can span the range from the desktop to the enterprise. Other competing technologies offer "point products" that provide solutions for a unique application band. AIT is unique in that it also offers complete read and write compatibility over three generations of products with the last two generations also providing the innovative "Write-Once-Read-Many" (WORM) data permanence feature.
AIT is a high performance technology due to its much shorter media and its "one-pass" recording nature. Some popular competing technologies will "shoe shine" tape over 50 times in order to completely fill the media. The AIT recording technology is also characterized by a very short "streaming recycle" timeenabled by its slow tape motion, which provides superior overall performance over a range of host data rates.
AIT's gentle tape motion, air bearing tape wrap and very low tension, together with the exceptional durability of Advanced Metal Evaporated (AME) media, make it an ideal, high duty-cycle automation solution. The Annual Failure Rate (AFR) data for the AIT family over the past several years has demonstrated an equivalent Mean-Time-Between-Failure (MTBF) of over 300,000 hours at 100% utilization.
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AIT-3 vs. Others
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AIT-3 |
LTO Ultrium |
SDLT 220 |
Capacity and Performance |
Max Native Capacity |
100GB |
100GB |
110GB |
Max Compressed Capacity |
260GB |
200GB |
220GB |
Max Native Transfer Rate |
12MB/s |
15MB/s |
11MB/s |
Max Compressed Transfer Rate |
31MB/s |
30MB/s |
22MB/s |
Average File Access Time |
<27 sec |
73 sec |
70 sec |
Average Media Load Time |
<10 sec |
21 sec |
40 sec |
Technology |
Recording Format |
Helical-Scan |
Linear |
Linear |
Form Factor |
3.5" HH |
5.25" FH |
5.25" FH |
Media Type |
8mm - AME+ |
1/2" - MP |
1/2" - AMP |
Automatic Head Cleaner |
Yes |
No |
No |
Buffer Size |
18MB |
32MB |
32MB |
Auxiliary (Cartridge) Memory |
Yes, 64 Kbit R-MIC |
Yes, 32 Kbit CM |
No |
Power Consumption |
18 watts |
41 watts |
26 watts |
SCSI Interface |
Ultra160 Wide |
Ultra2 Wide |
Ultra2 Wide |
Reliability* |
MTBF (Hours) |
400,000 |
250,000 |
250,000 |
Duty Cycle |
100% |
100% |
100% |
Head Life (Hours) |
50,000 |
60,000 |
30,000 |
Media Uses (end-to-end passes) |
30,000 |
100 full file passes 5000 load / unload cycles |
17,850 |
Media Archival Life |
30 years |
30 years |
30 years |
Download this Chart (51K PDF)
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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 |
Download this Chart (52K PDF)
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AIT-1 vs. Others
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AIT-1 |
DDS-4 |
VXA-1 |
DAT72 |
DLT1 |
Capacity and Performance |
Max Native Capacity |
35GB |
20GB |
33GB |
36GB |
40GB |
Max Compressed Capacity |
90GB |
40GB |
66GB |
72GB |
80GB |
Max Native Transfer Rate |
4MB/s |
2.36MB/s |
3MB/s |
3MB/s |
3MB/s |
Max Compressed Transfer Rate |
10MB/s |
4.72MB/s |
6MB/s |
6MB/s |
6MB/s |
Average File Access Time |
<27 sec |
<55 sec |
60-95 sec |
50 sec |
68 sec |
Average Media Load Time |
<10 sec |
<24 sec |
40 sec |
N/A |
59 sec |
Technology |
Recording Format |
Helical-Scan |
Helical-Scan |
Helical-Scan |
Helical-Scan |
Linear |
Form Factor |
3.5" HH |
3.5" HH |
5.25" HH |
5.25" HH |
5.25" HH |
Media Type |
8mm - AME |
4mm - MP |
8mm - AME |
4mm DAT |
1/2" - MP |
Automatic Head Cleaner |
Yes |
Yes |
No |
Yes |
No |
Buffer Size |
10MB |
10MB |
4 Mbits |
16MB |
2MB |
Auxiliary (Cartridge) Memory |
Yes, 64 Kbit MIC |
No |
No |
No |
No |
Power Consumption |
12 watts |
8 watts |
8.3 watts |
7.1 watts |
15 watts |
Interface |
IDE (ATAPI), Ultra Wide |
Ultra Wide |
Ultra Wide |
Ultra Wide |
Ultra Wide |
Reliability* |
MTBF (Hours) |
300,000 |
250,000 |
300,000 |
400,000 |
>200,000 |
Duty Cycle |
100% |
40% |
12% |
12% |
100% |
Head Life (Hours) |
50,000 |
20,000 |
30,000 |
N/A |
>30,000 |
Media Uses (end-to-end passes) |
30,000 |
2,000 |
20,000 |
N/A |
<20,000 |
Media Archival Life |
30 years |
30 years |
30 years |
30 years |
30 years |
Download this Chart (53K PDF)
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- All information shown above is based on published specifications.
- N/A: Information not available.
- *Reliability specifications are averages based on normal office environmental conditions. Actual experience may vary.
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