Embedded Bezel; Table 4-3. Sdlt 320 Versus Sdlt 220 With Embedded Bezel, Compression On (2:1) - Tandberg Data SDLT220-320 INTEGRATION Manual

Embedded Bezel

This section lists empirical temperature data from measurements taken while using
the embedded bezel.

Table 4-3. SDLT 320 versus SDLT 220 with Embedded Bezel, Compression On (2:1)

Sensor
1
HiFN
2
Hydra 1
3 Hydra 2
4
Coldfire
5
3.3-5.0 V Reg
6
Front Sensor
7
Rear Sensor
8
Headboard
9 Qlogic
10 Media Sensor
(Heads)
* These temperatures measured on SDLT 320 drives.
‡ These temperatures measured on SDLT 320 drives running in 220 read/write mode.
Results show certain components running hotter in 320 mode than 220 mode. The
HiFN (compression chip) runs slightly hotter, and the Hydra chips (read channels)
also run hotter. Both of these trends are to be expected as the data transfer rate is
increased from 11 MB/s (220) to 16 MB/s (320). However, most other components
show very little difference between the two modes.
25 degrees C Ambient
∆
SDLT SDLT
320* 220
‡
57.4 54.4 3.0
61.3 57.9 4.4
57.6 54.8 2.8
38.5 38.3 0.2
49.4 47.9 1.5
32.0 32.0 0.0
50.2 48.6 1.6
47.7 48.3 -0.6
45.3 44.2 1.1
34.6 34.7 -0.1
CHAPTER 4: Thermal Specifications
40 degrees C Ambient
SDLT SDLT
320* 220
‡
72.5 67.7
77.4 72.4
73.6 69.3
53.6 53.3
64.7 62.4
47.0 47.0
65.8 62.8
62.8 61.8
60.9 59.2
50.3 49.5
∆
4.8
5.0
4.3
0.3
2.3
0.0
3.0
1.0
1.7
0.8