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Sun Microsystems Sun Ultra 450, Manual

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Sun Microsystems Sun Ultra 450 Manual Download Page 13

CHAPTER

2

System Configuration Parameters

This chapter describes the NVRAM configuration variables and OpenBoot PROM
(OBP) commands available for configuring the following aspects of Ultra 450
system behavior:

4

UPA probing

4

PCI probing

4

Memory interleaving

4

Environmental monitoring and control

4

Automatic System Recovery (ASR)

NVRAM configuration variables covered in this chapter include:

4

upa-port-skip-list

4

pci0-probe-list

4

pci-slot-skip-list

4

memory-interleave

4

env-monitor

4

asr-disable-list

4

auto-boot-on-error?

4

diag-trigger

OBP commands covered in this chapter include:

4

asr-enable

4

asr-disable

4

.asr

5

Summary of Contents for Sun Ultra 450

Page 1: ...Sun Microsystems Inc 901 San Antonio Road Palo Alto CA 94303 4900 U S A Part No 805 4452 September 1998 Revision A...

Page 2: ...Microsystems Inc 901 San Antonio Road Palo Alto Californie 94303 Etats Unis Tous droits r serv s Ce produit ou document est prot g par un copyright et distribu avec des licences qui en restreignent l...

Page 3: ...mory Interleaving 8 Environmental Monitoring and Control 9 Automatic System Recovery 10 Soft Deconfiguration via Status Property 10 Hard Deconfiguration 10 ASR User Override Capability 11 Auto Boot Op...

Page 4: ...eplacing the Disk Drive In Your Application 21 UNIX File System UFS 22 Solstice DiskSuite 24 Removing a Hot Pluggable Disk Drive 27 Identifying the Faulty Disk Drive 28 Removing a Disk Drive From Your...

Page 5: ...removing or replacing hot pluggable disk drives 4 Procedures for mapping between the logical and physical device names of internal storage devices Using UNIX Commands This document may not contain in...

Page 6: ...n screen computer output su Password AaBbCc123 Book titles new words or terms words to be emphasized Command line variable replace with a real name or value Read Chapter 6 in the User s Guide These ar...

Page 7: ...hnical documentation on the Web You can browse the docs sun com archive or search for a specific book title or subject at http docs sun com Sun Welcomes Your Comments You can email your comments to us...

Page 8: ...viii September 1998 Revision A...

Page 9: ...a 4 slot backplane To support five to twelve internal disk drives you must install an optional 8 bay storage expansion kit which includes an eight slot backplane one dual channel single ended UltraSCS...

Page 10: ...here 4 x is an integer between 1 and 10 identifying the rear panel PCI slot number where the lower UltraSCSI controller is installed 4 y is an integer between 1 and 10 identifying the rear panel PCI s...

Page 11: ...uilds the device trees for the system incorporating any newly installed options After a device has been added to a device tree it can be recognized by the system After the reconfiguration reboot has s...

Page 12: ...4 September 1998 Revision A...

Page 13: ...UPA probing 4 PCI probing 4 Memory interleaving 4 Environmental monitoring and control 4 Automatic System Recovery ASR NVRAM configuration variables covered in this chapter include 4 upa port skip lis...

Page 14: ...om probing via the upa port skip list NVRAM variable In the following example the upa port skip list variable is used to exclude one of the UPA PCI bridges and the primary UPA graphics card from the U...

Page 15: ...is used to define a probing order of 3 4 while excluding from the probe list the on board SCSI controller for removable media devices and the external SCSI port ok setenv pci0 probe list 3 4 The probi...

Page 16: ...to setting for Ultra 450 systems max interleave Enables the maximum level of interleaving possible for a given memory configuration but some memory capacity remains unused if DIMMs of different capaci...

Page 17: ...lity and Serviceability Features in the owner s guide provided with your Ultra 450 system TABLE 2 4 Settings for the env monitor Variable Setting Monitor Active Action Taken enabled default Yes In res...

Page 18: ...without the failed component This prevents a faulty hardware component from keeping the entire system down or causing the system to crash again Soft Deconfiguration via Status Property To support a d...

Page 19: ...interleave factor ASR User Override Capability While the default settings will properly configure or deconfigure an Ultra 450 system in most cases it is useful to provide advanced users with a manual...

Page 20: ...abled PCI Slots Enabled Auto Boot Options OpenBoot provides for an NVRAM controlled switch called auto boot which controls whether OBP will automatically boot the operating system after each reset The...

Page 21: ...ies with it other side effects see the OpenBoot 3 x Command Reference Manual the Ultra 450 OBP provides a new NVRAM variable called diag trigger that lets you choose which reset events if any will aut...

Page 22: ...owing example the diag trigger variable is used to trigger POST and OpenBoot diagnostics on all resets except XIR resets ok setenv diag switch true ok setenv diag trigger soft reset 14 September 1998...

Page 23: ...u must stop that activity before removing the drive This can be done without bringing down the operating system or powering down the system The system supports hot plugging but there are software cons...

Page 24: ...new disk drive add the drive and then reconfigure the operating environment In all cases you must select a slot physically install the disk drive and configure the Solaris environment to recognize th...

Page 25: ...he new drive is assigned a logical device name of the form cwtxdysz where 4 w corresponds to the SCSI controller for the disk drive 4 x corresponds to the SCSI target for the disk drive 4 y is the log...

Page 26: ...logical device name for the new disk is c0t3d0 Configuring the New Disk Drive In Your Application Continue adding the disk by following the instructions for your specific application 4 Configuring th...

Page 27: ...the new file system See the vfstab 4 man page for more details 5 Mount the new file system using the mount command mount mount_point where mount_point is the directory you created The file system is...

Page 28: ...abeled and partitioned the same as the disk it will replace See the documentation for your application for instructions on how to format and partition the disk and add that disk to your application Id...

Page 29: ...t number and the logical device name from a physical device name such as devices pci 6 4000 scsi 4 1 sd 3 0 To make the necessary translation from one form of disk identifier to another see Chapter 4...

Page 30: ...get ID is 2 mount grep c1t2 export home1 on dev dsk c1t2d0s2 setuid read write on showmount a grep export home1 cinnamon export home1 archive austin export home1 swlab1 export home1 doc ps f grep c1t2...

Page 31: ...unt operation may not complete A large number of error messages may be displayed in the system console and in the var directory during the umount operation If the umount operation does not complete yo...

Page 32: ...slice for your UFS file system check and or create a file system on the slice fsck dev rdsk cwtxdysz newfs dev rdsk cwtxdysz 3 Mount the new file system using the mount command mount mount_point wher...

Page 33: ...metastat grep c1t2d0 mount grep c1t2d0 Save the output of the commands to reconstruct the metadevice configuration after you replace the disk 5 Delete database replicas If there are database replicas...

Page 34: ...to restart the system For each file system returned type umount filesystem where filesystem is the first field for each line returned in Step 1 on page 17 For example umount export home umount export...

Page 35: ...deice cwtxdysz 6 Remount any file systems and restart any applications that were using metadevices that could not be taken off line mount file_system Refer to the Solstice DiskSuite documentation for...

Page 36: ...refer to a failed disk drive by its UNIX physical device name such as devices pci 6 4000 scsi 4 1 sd 3 0 and its UNIX device instance name such as sd14 In some cases a faulty disk may be identified b...

Page 37: ...tify activities or applications attached to the device you plan to remove Commands to use are mount showmount a and ps ef See the mount 1M showmount 1M and ps 1 man pages for more details For example...

Page 38: ...line returned in Step 1 on page 17 For example umount export home umount export home2 Removing the Disk Drive Refer to the Sun Ultra 450 Workstation Owner s Guide or Ultra Enterprise 450 Server Owner...

Page 39: ...ices of the disk are used by hotspare pools they can be replaced by other available slices metahs r all c1t2d0s1 c2t2d0s1 For example 7 Unmount any file systems on the disk Note If the file system s a...

Page 40: ...Removing the Disk Drive Refer to the Sun Ultra 450 Workstation Owner s Guide or Ultra Enterprise 450 Server Owner s Guide for instructions on how to remove disk drives 32 September 1998 Revision A...

Page 41: ...g procedure you must know the slot number of the faulty disk 0 through 19 and its logical device name for example c2t3d0 If you know the disk slot number it is possible to determine the logical device...

Page 42: ...d in the system console and logged in the usr adm messages file WARNING pci 6 4000 scsi 4 1 sd 3 0 sd228 Error for Command read 10 Error level Retryable Requested Block 3991014 Error Block 3991269 Ven...

Page 43: ...s 11 If the output does not provide a slot number the device is either a removable media device CD ROM or tape drive or an external device Mapping From UNIX Logical Name to Disk Slot Number This secti...

Page 44: ...ow to translate from a known disk slot number 0 through 19 to a UNIX logical device name such as c2t3d0 The example in this procedure assumes a known disk slot number of 3 1 Determine the UNIX physica...

Page 45: ...s3 devices pci 1f 4000 scsi 3 sd 3 lrwxrwxrwx 1 root root 45 Jan 30 09 07 c0t3d0s4 devices pci 1f 4000 scsi 3 sd 3 lrwxrwxrwx 1 root root 45 Jan 30 09 07 c0t3d0s5 devices pci 1f 4000 scsi 3 sd 3 lrwxr...

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