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210 | Performing Daily Administration in AWMS Dell PowerConnect W AirWave 7.2 | User Guide
Table 122 System > Performance Page Fields and Graphs
Field Description
System Information
CPU(s) Basic CPU information as reported by the operating system.
Memory The amount of physical RAM and Swap space seen by the operating system. Refer to the AWMS
Server Hardware Guide in Home > Documentation for hardware requirements.
Kernel The version of the Linux kernel running on the box.
Device Polling Displays some AP/Device polling statistics.
Performance Graphs
System Load Average The number of jobs currently waiting to be processed. Load is a rough metric that will tell you
how busy a server is. A typical AWMS load is around 2-3 times the number of CPU cores you
have in your system. A constant load of 4x to 5x is cause for concern. A load above 6x is a
serious issue and will probably result in AWMS becoming unusable. To lower the load average,
try increasing a few polling periods in the Groups > Basic page.
System Memory Usage The amount of RAM that is currently used broken down by usage. It is normal for AWMS to have
very little free RAM. Linux automatically allocates all free RAM as cache and buffer. If the kernel
needs additional RAM for process it will dynamically take it from the cache and buffer.
System Disk Utilization The amount of data read from the disk and written to the disk.
System Disk IOPs The number of disk reads and writes per second.
System Disk Throughput The rate of reading and writing from and to the disk in bytes per second.
System Disk Outstanding I/O
Requests
The average number of outstanding I/O requests (queue depth). If it's high, it means that I/O
requests (disk reads/writes) aren't being serviced as fast as they're being asked for.
System Swap Usage The amount of Swap memory used by AWMS. Swap is used when the there is no more free
physical RAM. A large performance penalty is paid when swap is used. If an AWMS consistently
uses swap, you should consider installing additional RAM.
System CPU Utilization The percentage of CPU that has been used by the user and the system as well as the amount
that was idle.
I/O Throughput by Worker/by
Service
Displays reads and writes for workers (AMP services, database, VisualRF, web server, RRD tool
and AWRRD tool) and for services (AMP, VisualRF and web server).
CPU Utilization by Worker/by
Service
Displays reads and writes for workers (AMP services, database, VisualRF, web server, RRD tool
and AWRRD tool) and for services (AMP, VisualRF and web server).
System Network Bandwidth All traffic in and out measured in bits per second of your primary network interface (Eth0 being
the most common).
Bandwidth by Protocol Displays the amount of traffic used by Telnet, HTTPS and SNMP used by your primary network
interface (Eth0 being the most common).
Legacy SNMP Fetcher
Requests
The number of SNMP get and walk requests per second performed by the legacy (v1 and v3)
SNMP fetcher.
Legacy SNMP Fetcher
Responses
The number of SNMP OIDs received per second performed by the legacy (v1 and v3) SNMP
fetcher.
High Performance SNMP
Fetcher Requests
The number of SNMP get and walk requests per second performed by the high performance
SNMP (v2c) fetcher.
High Performance SNMP
Fetcher Responses
The number of SNMP OIDs received per second performed by the high performance SNMP
(v2c) fetcher.
Database Statistics
Top 5 Tables (by row count) The five largest tables in AWMS. Degraded performance has been noticed for in some cases for
tables over 200,000 rows. Dell PowerConnect W recommends decreasing the length of time
client data is stored on the AWMS page if a user/client table exceeds 250,000 rows.
Database Table Scans The number of database table scans performed by the database.
- Dell PowerConnect W 1
- AirWave 7.2 1
- Contents 3
- About This Guide 11
- Notice Icons 12
- Contacting Support 12
- Chapter 1 13
- VisualRF 14
- Master Console and Failover 15
- Chapter 2 17
- Getting Started 18
- Completing the Installation 20
- AWMS Navigation Basics 22
- Navigation Section 23
- Activity Section 24
- Help Links in the GUI 25
- Common List Settings 25
- Buttons and Icons 25
- Function Image 26
- Description 26
- Getting Started with AWMS 27
- Chapter 3 29
- Customizing Columns in Lists 30
- Resetting Pagination Records 31
- Using the Pagination Widget 31
- Customized Search 33
- Table 8: 35
- Creating AWMS Users 43
- Creating AWMS User Roles 44
- Introduction to Cisco WLSE 57
- Discovering Devices 58
- Managing Devices 58
- Inventory Reporting 58
- Defining Access 58
- Grouping 59
- WDS Participation 59
- Primary or Secondary WDS 59
- Configuring ACS Servers 61
- Requirement Description 64
- Deploying WMS Offload 66
- Chapter 4 69
- AWMS Groups Overview 70
- Priority Order 96
- Web Auth 96
- Comparing Device Groups 100
- Deleting a Group 101
- Modifying Multiple Devices 102
- APs/Devices > List 103
- APs/Devices > Up 103
- APs/Devices > Down 103
- Action Description 104
- Chapter 5 107
- Defining a SNMP/HTTP Scan Set 109
- Running a Scan Set 110
- What Next? 111
- Adding Universal Devices 112
- Setting Default Description 113
- Adding Universal Devices 115
- Monitoring Devices 116
- AMP Alerts 117
- IDS Events 117
- Incidents 117
- Field Description 119
- Graph Description 121
- Issues Summary section 123
- 802.11 Radio Counters Summary 124
- Recent ARM Events Log 125
- Column Description 126
- Active BSSIDs 127
- Auditing Device Configuration 130
- Configuring AP Settings 133
- Detail page 134
- Field Default Description 138
- Figure 99 140
- Message Meaning 143
- Chapter 6 149
- Viewing and Adding Templates 150
- Setting Description 151
- Configuring General Templates 154
- Using Template Syntax 155
- Push_and_exclude Command 156
- Variable Values Meaning 157
- Using AP-Specific Variables 158
- Applying Startup-config Files 159
- WDS Settings in Templates 159
- ip scp server enable 160
- Configuring a Global Template 162
- Group Name, ssid_1 163
- Subscriber 1, Value 0 163
- Chapter 7 165
- Fields 166
- Setting Up RAPIDS 167
- Rogue Containment Options 168
- Defining RAPIDS Rules 169
- Device OUI Score 170
- Rogue Device Threat Level 171
- Option Description 172
- Recommended RAPIDS Rules 173
- Score Override 177
- Audit Log 178
- Figure 123 Audit Log 179
- Chapter 8 181
- Setting Triggers for Devices 184
- Setting Triggers for Radios 184
- Setting Triggers for Users 185
- Delivering Triggered Alerts 187
- Viewing Alerts 187
- Responding to Alerts 188
- Overview of the Users Pages 189
- Page Illustration 190
- Section Description 196
- Overview of SOTI MobiControl 198
- 144 illustrates this page 202
- Accessing AWMS Documentation 203
- Log Description 207
- System Information 208
- Performance Graphs 208
- Database Statistics 208
- Disk Usage 208
- Upgrading AWMS 214
- Backing Up AWMS 214
- Running Backup on Demand 215
- Restoring from a Backup 215
- Adding Watched AWMS Stations 216
- Chapter 9 219
- Using Daily Reports 222
- Using the IDS Events Report 229
- Using the Inventory Report 230
- Using the New Users Report 234
- Using the Port Usage Report 236
- Using the RF Health Report 237
- Using the User Session Report 239
- Defining Reports 242
- Emailing Reports to Smarthost 245
- Chapter 10 247
- Icon Description 250
- Appendix A 255
- Appendix B 257
- ReefEdge Configuration 258
- Example Network Configuration 258
- Appendix C 261
- System ID: 00409625854D 262
- Initialization: OK 262
- Cisco IOS Dual Radio Template 263
- AWMS Firmware Upgrade Process 264
- Appendix D 265
- Appendix E 267
- Appendix F 269
- Appendix G 271
- Appendix H 273
- Perl-Net-IP: 276
- Berkeley DB 1.85: 276
- SWFObject v. 1.5: 276
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