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Brocade MLX Series and NetIron XMR Hardware Installation Guide 235
53-1003267-02
Managing the cooling system
6
Managing the cooling system
This section provides configuration, management, and monitoring information about router cooling
systems.
Configuring the cooling system
Your router is pre-configured with default settings for all cooling system parameters. Although no
initial configuration of the cooling system is necessary, you can change the settings of the following
cooling system parameters:
• Low and high temperature thresholds for modules and fan speeds
• Interval at which the system polls the temperature sensors on the module for a reading
NOTE
Auto control of fan speed is not monitored when cards are in interactive mode. Set fan speed to high
to prevent over-temp condition.
NOTE
Adjusting fan controls out of the default setting can negatively affect the efficient cooling of blades
and may cause a blade to overheat and shutdown.
Changing temperature thresholds for modules and fan speeds
The cooling system includes fans that operate at four speeds: low, medium, medium-high, and
high. In general, each fan speed, (except for low), has a low and high temperature threshold
associated with it, as shown in Figure 152. The low fan speed has a high temperature threshold
only.
NOTE
Adjusting fan controls out of the default setting can negatively affect the efficient cooling of blades
and may cause a blade to overheat and shutdown.
FIGURE 152 Fan speeds and temperature thresholds
The low and high temperature thresholds allow the router to determine the speed at which the fans
should operate. In general, the fans operate according to these guidelines:
• If the temperature of all modules falls between the low and high thresholds for a fan speed, the
fan continues to operate at that speed.
Operating
Temperature
Medium
Speed
Low Speed
Med-High
Speed
High
Speed
50 55 60 65 70 75 80 85 90 95
High, 60 deg.
Low 57, deg. High, 70 deg.
Low, 67 deg. High, 80 deg.
Low, 77 deg. High, 85 deg.
- Brocade MLX Series and 1
- NetIron XMR 1
- Document History 2
- About This Document 3
- Supported hardware 4
- What’s new in this document 4
- Document conventions 4
- Notice to the reader 5
- Related publications 6
- Getting technical help 6
- Contents 7
- 53-1003267-02 10
- Product Overview 15
- Brocade MLX routers 16
- FIGURE 2 Brocade MLX-8 router 17
- • Two management modules 18
- • Up to 32 interface modules 18
- Hardware features 19
- Brocade MLX-32 router 19
- NetIron XMR routers 20
- NetIron XMR 32000 router 23
- Router modules 24
- • Console port 25
- • A 10/100/1000 Ethernet port 25
- Auxiliary flash slots 26
- External compact flash 26
- Console port 26
- 10/100/1000 Ethernet port 26
- Management module LEDs 27
- Interface modules 28
- SKU Ports Description 29
- • Two 100xGbE CFP ports 30
- TABLE 4 100xGbE module LEDs 31
- 8x10GE-X interface modules 32
- TABLE 6 8x10GE-X module LEDs 33
- LED Location State Meaning 34
- • Two LEDs per port 35
- • BR-MLX-1GCx24-X-ML 38
- • BR-MLX-1GCx24-X 38
- • 24 1 Gbps RJ45 copper ports 39
- • BR-MLX-1GFx24-X 39
- • BR-MLX-1GFx24-X-ML 39
- • 24 1 Gbps fiber ports 40
- Position State Meaning 41
- LED Position State Meaning 42
- • Name of the module 44
- • LED indicator for a port 44
- Line Module Shutdown 45
- Switch fabric modules 46
- Power supplies 47
- TABLE 17 Power supplies 48
- Rack mounting brackets 50
- • Leave the fan speed as is 53
- • Increase the fan speed 53
- • Decrease the fan speed 53
- Supported software features 54
- FIGURE 38 Installing a module 68
- Brocade(config)# write memory 78
- Write startup-config done 78
- Interface modules 1 – 16 86
- 2Cord retainer 4 Ground point 97
- Installation requirements 102
- 2 Removable front panel 103
- ATTENTION 109
- FIGURE 65 Saddle installation 110
- 2 Rack mounting poles 112
- 3Router mounting brackets 112
- Figure 70 116
- Slide the chassis in the rack 116
- Secure chassis in rack 117
- 1 Hooked tab 2 Stepped tab 119
- Cable management notes 123
- Accessing modules for service 130
- 1 Cable bundles 131
- 4 ALM 9 Power supply 132
- 5 Latch handle open 132
- Connecting AC power 133
- Connecting DC power 133
- 2Power lug 135
- Final steps 136
- Activating the power source 137
- Verifying proper operation 138
- Router LED states and actions 139
- Displaying the module status 141
- Forced card deletion 142
- Installation precautions 147
- General precautions 148
- Power precautions 149
- Installation considerations 151
- Installation procedure 151
- Brocade# config 152
- Brocade(config)# exit 152
- Brocade# write memory 152
- Brocade# reload 152
- 1 Front 3 Shipping screws 156
- 1 Standard 19 inch rack 157
- Module Slot number 158
- Removing the shipping screws 165
- 1 Lift handle 3 Power cord 171
- Removing slot blanks 178
- Brocade# conf t 179
- Brocade# set-fan-speed auto 179
- 1Interface module 180
- 4ALM 9Power supply 203
- 1Lug screws 2 Power lug (2) 205
- Cable cinch overview 217
- FIGURE 137 Two mRJ21 cables 218
- FIGURE 138 Three mRJ21 cables 218
- FIGURE 140 Five mRJ21 cables 219
- FIGURE 141 Six mRJ21 cables 220
- FIGURE 142 Seven mRJ21 cables 220
- RJ45 procedures 221
- 24 RJ45 cables in four groups 223
- 30 RJ45 cables in five groups 224
- 36 RJ45 cables in six groups 224
- Assigning permanent passwords 227
- Configuring IP addresses 228
- Tunable 10 GbE DWDM SFP+ 232
- Testing network connectivity 234
- Tracing a route 235
- Managing Routers and Modules 237
- • Status of the fans 240
- • MAC address of the device 240
- Field Description 241
- Static and dynamic buffers 244
- MP Presence State 245
- Rolling Reboot 246
- FPGA Image Mismatch 247
- Managing the cooling system 249
- Syntax: show fan-threshold 253
- • LP – An interface module 254
- Monitoring the cooling system 256
- Temperature log reduction 257
- Managing interface modules 258
- Brocade# lp sync all 259
- Changing the boot source 260
- Monitoring Link Status 265
- Syslog messages 266
- Brocade# alarm history 100 267
- Displaying alarms 268
- Configuring alarm logging 268
- Description Syntax 269
- Switch fabric element 271
- Displaying CPU usage 273
- Removing MAC address entries 275
- Simplified Upgrade 275
- Version Information 276
- Summary Report 276
- Option to Ignore the Version 277
- Supported Images 277
- Hardware maintenance schedule 279
- Replacing a management module 280
- Replacing an interface module 281
- Replacing a power supply 284
- 5Latch handle open 289
- Replacing fan assemblies 290
- 1 Fan module 1 6 Fan module 6 292
- 2 Fan module 2 7 Fan module 7 292
- 3 Fan module 3 8 Fan module 8 292
- 4 Fan module 4 9 Fan module 9 292
- Replacing the air filters 298
- 2 Filter 4 Filter grab-strap 300
- 2Filter 4Fan trap 301
- • Phillips screwdriver 302
- • Small flathead screwdriver 302
- • ESD wrist strap 302
- FIGURE 170 Handle removal 304
- Hardware Specifications 307
- Component Maximum power 308
- Physical dimensions 309
- Operating environment 309
- Storage environment 310
- Safety agency approvals 310
- Electromagnetic approvals 310
- Power specifications 310
- Console port pin assignments 314
- Power cords 315
- Regulatory Statements 319
- Power cords (Japan Denan) 320
- TABLE 56 Anatel certificates 322
- Caution and Danger Notices 323
- Cautions 324
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