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Contents
x C141-E237
Illustrations
Figures
Figure 1.1 Example of SAS system configuration
(Dual port internal cabled environment)...................................... 1-6
Figure 1.2 Example of SAS system configuration
(Dual port internal backplane environment)................................ 1-6
Figure 3.1 Cylinder configuration ................................................................. 3-2
Figure 3.2 Spare area in cell.......................................................................... 3-4
Figure 3.3 Alternate cylinder......................................................................... 3-4
Figure 3.4 Track format................................................................................. 3-5
Figure 3.5 Track skew/head skew ................................................................. 3-6
Figure 3.6 Sector format................................................................................ 3-6
Figure 3.7 Alternate block allocation by FORMAT UNIT command ........ 3-11
Figure 3.8 Alternate block allocation by REASSIGN BLOCKS
command.................................................................................... 3-12
Figure 4.1
Dimensions................................................................................... 4-1
Figure 4.2 HDD orientations ......................................................................... 4-2
Figure 4.3 Mounting frame structure example.............................................. 4-3
Figure 4.4 Limitation of side-mounting ........................................................ 4-4
Figure 4.5 Surface temperature measurement points.................................... 4-5
Figure 4.6 Service clearance area.................................................................. 4-6
Figure 4.7 Current waveform (+12V DC)..................................................... 4-7
Figure 4.8 AC noise filter.............................................................................. 4-8
Figure 4.9 Connector location ....................................................................... 4-8
Figure 4.10 SAS plug connector overview...................................................... 4-9
Figure 4.11 Recommended external circuit for Ready LED output.............. 4-11
Figure 6.1
Revision label (example) ............................................................. 6-7
Figure 6.2 Indicating revision numbers......................................................... 6-8
Figure 6.3 Test flowchart............................................................................... 6-9
Figure 7.1
Format of extended sense data..................................................... 7-2