Sun Fire V445 Server Administration Guide - SCN Research

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Sun StorEdge Traffic Manager Sun StorEdge Traffic Manager, a feature found in the Solaris 8 and later OSs, is a native multipathing solution for storage devices such as Sun StorEdge disk arrays. Sun StorEdge Traffic Manager provides the following features: ■ Host-level multipathing ■ Physical host controller interface (pHCI) support ■ Sun StorEdge T3, Sun StorEdge 3510, and Sun StorEdge A5x00 support ■ Load balancing For more information, see “Sun StorEdge Traffic Manager” on page 113. Also consult your Solaris software documentation. Hardware Watchdog Mechanism and XIR To detect and respond to a system hang, should one ever occur, the Sun Fire V445 server features a hardware “watchdog” mechanism, which is a hardware timer that is continually reset as long as the operating system is running. In the event of a system hang, the operating system is no longer able to reset the timer. The timer will then expire and cause an automatic externally initiated reset (XIR), eliminating the need for operator intervention. When the hardware watchdog mechanism issues the XIR, debug information is displayed on the system console. The hardware watchdog mechanism is present by default, but it requires some additional setup in the Solaris OS. The XIR feature is also available for you to invoke manually at the ALOM system controller prompt. You use the ALOM system controller reset -x command manually when the system is unresponsive and an L1-A (Stop-A) keyboard command or alphanumeric terminal Break key does not work. When you issue the reset -x command manually, the system is immediately returned to the OpenBoot ok prompt. From there, you can use OpenBoot commands to debug the system. For more information, see the following: ■ “Enabling the Hardware Watchdog Mechanism and Its Options” on page 108 ■ Chapter 8 and Chapter 9 Support for RAID Storage Configurations By attaching one or more external storage devices to the Sun Fire V445 server, you can use a redundant array of independent disks (RAID) software application such as Solstice DiskSuite to configure system disk storage in a variety of different RAID levels. Configuration options include RAID 0 (striping), RAID 1 (mirroring), RAID 0+1 (striping plus mirroring), RAID 1+0 (mirroring plus striping), and RAID 5 96 Sun Fire V445 Server Administration Guide • August 2006
(striping with interleaved parity). You choose the appropriate RAID configuration based on the price, performance, reliability, and availability goals for your system. You can also configure one or more disk drives to serve as “hot spares” to fill in automatically in the event of a disk drive failure. In addition to software RAID configurations, you can set up a hardware RAID 1 (mirroring) configuration for any pair of internal disk drives using the SAS controller, providing a high-performance solution for disk drive mirroring. For more information, see the following: ■ “About Volume Management Software” on page 112 ■ “About RAID Technology” on page 114 ■ “Creating a Hardware Disk Mirror” on page 118 Error Correction and Parity Checking DIMMs employ error-correcting code (ECC) to ensure high levels of data integrity. The system reports and logs correctable ECC errors. (A correctable ECC error is any single-bit error in a 128-bit field.) Such errors are corrected as soon as they are detected. The ECC implementation can also detect double-bit errors in the same 128-bit field and multiple-bit errors in the same nibble (4 bits). In addition to providing ECC protection for data, parity protection is also used on the PCI and UltraSCSI buses, and in the UltraSPARC IIIi CPU internal caches. ECC detection and correction for DRAM is present in the 1 Mbyte on-chip ecache SRAM of the UltraSPARC-IIIi processor. About the ALOM System Controller Command Prompt The ALOM system controller supports a total of five concurrent sessions per server: four connections available through the network management port and one connection through the serial management port. Note – Some of the ALOM system controller commands are also available through the Solaris scadm utility. For more information, see the Sun Advanced Lights Out Manager (ALOM) Online Help. Chapter 5 Managing RAS Features and System Firmware 97
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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
Page 71 and 72: 2. To cause the changes to take eff
Page 73 and 74: 3. In a shell tool window on the Su
Page 75 and 76: Modifying the /etc/remote File This
Page 77 and 78: Accessing the System Console With a
Page 79 and 80: If you have redirected the system c
Page 81 and 82: 6. Obtain the ok prompt. For more i
Page 83 and 84: CHAPTER 3 Powering On and Powering
Page 85 and 86: Powering On the Server Locally Do n
Page 87 and 88: Caution - Applications running on t
Page 89 and 90: the OS to recognize the configurati
Page 91 and 92: If the system encounters a problem
Page 93 and 94: CHAPTER 4 Configuring Hardware This
Page 95 and 96: 1 0 1 0 DIMM group 1 DIMM group 0 F
Page 97 and 98: DIMM Configuration Rules ■ ■
Page 99 and 100: Caution - Although access to the AL
Page 101 and 102: ■ your configuration requires a h
Page 103 and 104: PCI0 PCI1 PCI6 PCI7 PCI3 PCI2 PCI5
Page 105 and 106: About the SAS Backplane The Sun Fir
Page 107 and 108: For additional information, see “
Page 109 and 110: The Solaris Volume Manager software
Page 111 and 112: A power supply can be hot-swapped o
Page 113 and 114: FIGURE 4-7 System Fan Trays and Fan
Page 115 and 116: About the USB Ports The system fron
Page 117 and 118: CHAPTER 5 Managing RAS Features and
Page 119 and 120: power supplies, fan trays, and USB
Page 121: detects the failure and generates a
Page 125 and 126: For instructions on connecting to t
Page 127 and 128: Viewing Environmental Information U
Page 129 and 130: ● From the ALOM system controller
Page 131 and 132: 4. To view console output as the sy
Page 133 and 134: TABLE 5-1 Device Identifiers and De
Page 135 and 136: ▼ To Enable the Hardware Watchdog
Page 137 and 138: CHAPTER 6 Managing Disk Volumes Thi
Page 139 and 140: Sun StorEdge Traffic Manager A newe
Page 141 and 142: RAID 0 - Disk Striping Disk stripin
Page 143 and 144: Caution - Creating or restoring a d
Page 145 and 146: 2. Type the following command: # ra
Page 147 and 148: 3. To confirm that you have deleted
Page 149 and 150: 4. To check the status of a RAID re
Page 151 and 152: Note that while you can use the Sol
Page 153 and 154: 6. To verify that the new disk driv
Page 155 and 156: CHAPTER 7 Managing Network Interfac
Page 157 and 158: Attaching a Twisted-Pair Ethernet C
Page 159 and 160: During installation of the Solaris
Page 161 and 162: The name of the file you create sho
Page 163 and 164: CHAPTER 8 Diagnostics This chapter
Page 165 and 166: TABLE 8-1 Summary of Diagnostic Too
Page 167 and 168: TABLE 8-2 Component What ALOM Monit
Page 169 and 170: About Status Indicators For a summa
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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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4. You can also run all tests, type
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To customize an individual test, yo
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The following is sample output from
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show-devs Command The show-devs com
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Use the following web site to inter
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# fmdump TIME UUID SUNW-MSG-ID Jul
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# fmstat module ev_recv ev_acpt wai
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Using the prtconf Command The prtco
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CODE EXAMPLE 8-7 prtdiag Command Ou
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CODE EXAMPLE 8-7 MB/FT0/F0 TACH oka
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The prtfru command can display this
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CODE EXAMPLE 8-12 prtfru -c Command
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When used with the -p option, this
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▼ To View and Set OpenBoot Config
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Using the probe-ide Command To Conf
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If the kernel hangs and the watchdo
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Error Handling Summary Error handli
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Automatic System Restoration User C
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About SunVTS SunVTS is a software s
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TABLE 8-12 SunVTS Test vmemtest env
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TABLE 8-14 Feature Sun Management C
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Interoperability With Third-Party M
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CHAPTER 9 Troubleshooting This chap
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■ ■ Sun System Handbook - A doc
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About Sun Remote Services Net Conne
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Remote Troubleshooting Capabilities
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core dump directory to another loca
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4. Type the df -k1 command to ident
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APPENDIX A Connector Pinouts This a
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Network Management Connector Diagra
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Reference for the USB Connectors Tw
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APPENDIX B System Specifications Th
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TABLE B-2 Electrical Specifications
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Reference for Clearance and Service
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APPENDIX C OpenBoot Configuration V
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TABLE C-1 OpenBoot Configuration Va
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Index Symbols /etc/hostname file, 1
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dual inline memory modules (DIMMs),
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configuring IP address, 41 configur
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SEAM (Sun Enterprise Authentication
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W watchdog, hardware, See hardware
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