Sun Fire V445 Server Administration Guide - SCN Research

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You can direct where system log messages are stored or have them sent to a remote system by setting up system message logging. For more information, see “How to Customize System Message Logging” in the System Administration Guide: Advanced Administration, which is part of the Solaris System Administrator Collection. In some failure situations, a large stream of data is sent to the system console. Because ALOM system controller log messages are written into a circular buffer that holds 64 Kbytes of data, it is possible that the output identifying the original failing component can be overwritten. Therefore, you may want to explore further system console logging options, such as SRS Net Connect or third-party vendor solutions. For more information about SRS Net Connect, see “About Sun Remote Services Net Connect” on page 213. More information about SRS Net Connect is available at: http://www.sun.com/service/support/ Certain third-party vendors offer data logging terminal servers and centralized system console management solutions that monitor and log output from many systems. Depending on the number of systems you are administering, these might offer solutions for logging system console information. For more information about the system console, see Chapter 2. Predictive Self-Healing The Solaris Fault Manager daemon, fmd(1M), runs in the background on every Solaris 10 or later system and receives telemetry information about problems detected by the system software. The fault manager then uses this information to diagnose detected problems and initiate proactive self-healing activities such as disabling faulty components. fmdump(1M), fmadm(1M), and fmstat(1M) are the three core commands that administer the system generated messages produced by the Solaris Fault Manager. See “About Predictive Self-Healing” on page 172 for details. Also refer to the man pages for these commands. Core Dump Process In some failure situations, a Sun engineer might need to analyze a system core dump file to determine the root cause of a system failure. Although the core dump process is enabled by default, you should configure your system so that the core dump file is saved in a location with adequate space. You might also want to change the default 216 Sun Fire V445 Server Administration Guide • August 2006
core dump directory to another locally mounted location so that you can better manage any system core dumps. In certain testing and pre-production environments, this is recommended since core dump files can take up a large amount of file system space. Swap space is used to save the dump of system memory. By default, Solaris software uses the first swap device that is defined. This first swap device is known as the dump device. During a system core dump, the system saves the content of kernel core memory to the dump device. The dump content is compressed during the dump process at a 3:1 ratio; that is, if the system were using 6 Gbytes of kernel memory, the dump file will be about 2 Gbytes. For a typical system, the dump device should be at least one third the size of the total system memory. See “Enabling the Core Dump Process” on page 217 for instructions on how to calculate the amount of available swap space. Enabling the Core Dump Process This is normally a task that you would complete just prior to placing a system into the production environment. Access the system console. See: ■ “About Communicating With the System” on page 24 ▼ To Enable the Core Dump Process 1. Check that the core dump process is enabled. As root, type the dumpadm command. # dumpadm Dump content: kernel pages Dump device: /dev/dsk/c0t0d0s1 (swap) Savecore directory: /var/crash/machinename Savecore enabled: yes By default, the core dump process is enabled in the Solaris 8 OS. Chapter 9 Troubleshooting 217
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Sun Fire V445 Server Administratio
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Contents Preface xxi 1. System Over
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Ways of Reaching the sc> Prompt 32
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Memory Interleaving 70 Independent
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▼ To Enable the Hardware Watchdog
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Reference for Estimating System Boo
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About Sun Management Center 204 How
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Reference for Clearance and Service
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Figures FIGURE 1-1 Front Panel Feat
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Tables TABLE 1-1 Sun Fire V445 Serv
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Preface The Sun Fire V445 Server Ad
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Typographic Conventions TABLE P-1 T
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http://www.sun.com/hwdocs/feedback
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CHAPTER 1 System Overview This chap
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TABLE 1-1 Feature Sun Fire V445 Ser
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RAID 0,1 Internal Hard Drives Inter
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technology enables Sun systems to a
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For information about front panel c
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For hard disk drive indicator descr
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SAS Disk Drives The system has up t
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Locating Back Panel Features The il
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PCI0 PCI1 PCI6 PCI7 PCI2 PCI3 PCI5
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Serial Management Port The serial m
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Reliability, Availability, and Serv
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CHAPTER 2 Configuring the System Co
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TABLE 2-1 Ways of Communicating Wit
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Default System Console Connection T
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Access Through the Network Manageme
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About the sc> Prompt The ALOM syste
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About the ok Prompt A Sun Fire V445
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L1-A (Stop-A) Keys or Break Key Whe
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System Console ok NET MGT or SERIAL
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4. Refer to TABLE 2-2 for instructi
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Note - The network management port
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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15
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2. To cause the changes to take eff
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3. In a shell tool window on the Su
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Modifying the /etc/remote File This
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Accessing the System Console With a
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If you have redirected the system c
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6. Obtain the ok prompt. For more i
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CHAPTER 3 Powering On and Powering
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Powering On the Server Locally Do n
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Caution - Applications running on t
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the OS to recognize the configurati
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If the system encounters a problem
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CHAPTER 4 Configuring Hardware This
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1 0 1 0 DIMM group 1 DIMM group 0 F
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DIMM Configuration Rules ■ ■
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Caution - Although access to the AL
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■ your configuration requires a h
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PCI0 PCI1 PCI6 PCI7 PCI3 PCI2 PCI5
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About the SAS Backplane The Sun Fir
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For additional information, see “
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The Solaris Volume Manager software
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A power supply can be hot-swapped o
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FIGURE 4-7 System Fan Trays and Fan
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About the USB Ports The system fron
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CHAPTER 5 Managing RAS Features and
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power supplies, fan trays, and USB
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detects the failure and generates a
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(striping with interleaved parity).
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For instructions on connecting to t
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Viewing Environmental Information U
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● From the ALOM system controller
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4. To view console output as the sy
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TABLE 5-1 Device Identifiers and De
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▼ To Enable the Hardware Watchdog
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CHAPTER 6 Managing Disk Volumes Thi
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Sun StorEdge Traffic Manager A newe
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RAID 0 - Disk Striping Disk stripin
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Caution - Creating or restoring a d
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2. Type the following command: # ra
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3. To confirm that you have deleted
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4. To check the status of a RAID re
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Note that while you can use the Sol
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6. To verify that the new disk driv
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CHAPTER 7 Managing Network Interfac
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Attaching a Twisted-Pair Ethernet C
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During installation of the Solaris
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The name of the file you create sho
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CHAPTER 8 Diagnostics This chapter
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TABLE 8-1 Summary of Diagnostic Too
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TABLE 8-2 Component What ALOM Monit
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About Status Indicators For a summa
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■ ■ diag-switch? parameter has
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TABLE 8-3 OpenBoot Configuration Va
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Note that service mode does not cha
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When you are deciding whether to en
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If you specify settings for neither
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If you need to know the approximate
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The following sample shows the firm
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CODE EXAMPLE 8-1 Executing Power On
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System Reset skip_diag System Contr
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TABLE 8-6 Summary of Diagnostic Ope
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Page 201 and 202: # fmdump TIME UUID SUNW-MSG-ID Jul
Page 203 and 204: # fmstat module ev_recv ev_acpt wai
Page 205 and 206: Using the prtconf Command The prtco
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Page 209 and 210: CODE EXAMPLE 8-7 MB/FT0/F0 TACH oka
Page 211 and 212: The prtfru command can display this
Page 213 and 214: CODE EXAMPLE 8-12 prtfru -c Command
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Page 219 and 220: Using the probe-ide Command To Conf
Page 221 and 222: If the kernel hangs and the watchdo
Page 223 and 224: Error Handling Summary Error handli
Page 225 and 226: Automatic System Restoration User C
Page 227 and 228: About SunVTS SunVTS is a software s
Page 229 and 230: TABLE 8-12 SunVTS Test vmemtest env
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Page 233 and 234: Interoperability With Third-Party M
Page 235 and 236: CHAPTER 9 Troubleshooting This chap
Page 237 and 238: ■ ■ Sun System Handbook - A doc
Page 239 and 240: About Sun Remote Services Net Conne
Page 241: Remote Troubleshooting Capabilities
Page 245 and 246: 4. Type the df -k1 command to ident
Page 247 and 248: APPENDIX A Connector Pinouts This a
Page 249 and 250: Network Management Connector Diagra
Page 251 and 252: Reference for the USB Connectors Tw
Page 253 and 254: APPENDIX B System Specifications Th
Page 255 and 256: TABLE B-2 Electrical Specifications
Page 257 and 258: Reference for Clearance and Service
Page 259 and 260: APPENDIX C OpenBoot Configuration V
Page 261 and 262: TABLE C-1 OpenBoot Configuration Va
Page 263 and 264: Index Symbols /etc/hostname file, 1
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Page 267 and 268: configuring IP address, 41 configur
Page 269 and 270: SEAM (Sun Enterprise Authentication
Page 271 and 272: W watchdog, hardware, See hardware
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