Lucent Technologies 585-210-940 - Manuals

Introduction to Disk Mirroring CentreVu CMS Release 3 Version 8 Disk-Mirrored Systems Disk mirroring defined 3 The total capacity of this concatenated metadevice is the combined capacities of the three drives. If each drive is 4 gigabytes, for example, the metadevice has an overall capacity of 12 gi...

Introduction to Disk Mirroring CentreVu CMS Release 3 Version 8 Disk-Mirrored Systems How CMS implements disk mirroring 5 How CMS implements disk mirroring 1 A nonmirrored, CMS system with Solstice DiskSuite uses it to create a single metadevice, named d19, containing all the disk partitions used to...

Introduction to Disk Mirroring CentreVu CMS Release 3 Version 8 Disk-Mirrored Systems How CMS implements disk mirroring 6 In a CMS computer system with /cms mirrored, root is also mirrored. The root mirror is d13; its submirrors are d11 and d12. For example: If your computer system is running CMS r3...

Introduction to Disk Mirroring CentreVu CMS Release 3 Version 8 Disk-Mirrored Systems How CMS implements disk mirroring 7 Mirror layouts 1 Mirror layouts on a factory-installed mirrored system differ depending upon the platform. When a system is upgraded to mirroring in the field, mirror layouts are...

Introduction to Disk Mirroring CentreVu CMS Release 3 Version 8 Disk-Mirrored Systems How CMS implements disk mirroring 8 Mirror layout on a Sun Enterprise 3500 computer 1 On a Sun Enterprise 3500 platform, the mirror layout must always be based upon the bays in which the disks are installed. Submir...

Introduction to Disk Mirroring CentreVu CMS Release 3 Version 8 Disk-Mirrored Systems How CMS implements disk mirroring 9 Required software 1 In order for your CMS system to be mirrored, it must be running the following software: For a list of other software required for your system, see the Lucent ...

Installing Mirrored Systems CentreVu CMS Release 3 Version 8 Disk-Mirrored Systems How to upgrade an Enterprise platform to disk mirroring 11 2 Installing Mirrored Systems 2 This chapter contains procedures for upgrading existing computer systems to use disk mirroring and for installing a mirrored s...

Installing Mirrored Systems CentreVu CMS Release 3 Version 8 Disk-Mirrored Systems How to upgrade an Enterprise platform to disk mirroring 12 Increasing system capacity 2 If you intend to increase your system capacity as well as mirror your system, first install the new disks needed to increase capa...

Installing Mirrored Systems CentreVu CMS Release 3 Version 8 Disk-Mirrored Systems How to upgrade an Enterprise platform to disk mirroring 13 b. Record existing nonboot disks under submirror 19, and empty slots for new nonboot disks under submirror 20. Example: Imagine a system that already has two ...

Installing Mirrored Systems CentreVu CMS Release 3 Version 8 Disk-Mirrored Systems How to upgrade an Enterprise platform to disk mirroring 14 Step 2: Install the mirror disks on an Enterprise 3500 system 2 Do this step only if you have an Enterprise 3500 system. It is likely that your Enterprise 350...

Installing Mirrored Systems CentreVu CMS Release 3 Version 8 Disk-Mirrored Systems How to upgrade an Enterprise platform to disk mirroring 17 4. Enter: partition> print The partition table displays and the partition> prompt returns. Compare the display to the Partitioning table below to see wh...

Installing Mirrored Systems CentreVu CMS Release 3 Version 8 Disk-Mirrored Systems How to upgrade an Enterprise platform to disk mirroring 18 8. Enter: y The partition> prompt returns. 9. Enter: partition> q The format> prompt returns. 10. To select the next disk to be partitioned, enter: f...

Installing Mirrored Systems CentreVu CMS Release 3 Version 8 Disk-Mirrored Systems How to upgrade an Enterprise platform to disk mirroring 20 Step 7: Set up the mirrors for the root file system 2 Set up the mirrors for the root file system with the following steps: 1. Activate metadevice d11: 2. Act...

Installing Mirrored Systems CentreVu CMS Release 3 Version 8 Disk-Mirrored Systems How to upgrade an Enterprise platform to disk mirroring 24 Step 9: Set up the /cms mirror 2 1. Edit /etc/vfstab. Copy the d19 entry to the succeeding line. Then comment out the original and change “d19” to “d21”. For ...

Installing Mirrored Systems CentreVu CMS Release 3 Version 8 Disk-Mirrored Systems How to upgrade an Enterprise platform to disk mirroring 25 Step 10: Verify disk space 2 1. Display available disk space by entering a df -k command. The system responds with a file system table. For example: The figur...

Installing Mirrored Systems CentreVu CMS Release 3 Version 8 Disk-Mirrored Systems How to upgrade an Enterprise platform to disk mirroring 26 If the stripes of d19 and d20 do not account for all the disk drives on your system, check your disk drive connections. If discrepancies persist, telephone th...

Installing Mirrored Systems CentreVu CMS Release 3 Version 8 Disk-Mirrored Systems How to upgrade an Enterprise platform to disk mirroring 27 3. Reboot the system with the following command: The system displays the ok prompt. 4. Create a device alias for the new boot device by entering the following...

Installing Mirrored Systems CentreVu CMS Release 3 Version 8 Disk-Mirrored Systems Factory installation procedures for disk mirroring 28 Factory installation procedures for disk mirroring 2 This section describes how a mirrored system is installed on a new Sun Enterprise 3xxx computer in the factory...

Installing Mirrored Systems CentreVu CMS Release 3 Version 8 Disk-Mirrored Systems Factory installation procedures for disk mirroring 30 Step 4: Check the disk.type file 2 The olds commands, which you will be using to configure the Solstice DiskSuite software, obtain information about your disk conf...

Installing Mirrored Systems CentreVu CMS Release 3 Version 8 Disk-Mirrored Systems Factory installation procedures for disk mirroring 33 5. Setup the /cms metadevices by entering the following commands: 6. Create and mount the /cms file system by entering the following commands: Step 7: Verify disk ...

Installing Mirrored Systems CentreVu CMS Release 3 Version 8 Disk-Mirrored Systems Factory installation procedures for disk mirroring 34 2. Complete the table below by filling in (1a) and (1b) as instructed. 3. Compare the figures in (1a) and (1b). They should be approximately equal. The two will no...

Installing Mirrored Systems CentreVu CMS Release 3 Version 8 Disk-Mirrored Systems Factory installation procedures for disk mirroring 35 Step 8: Install the CMS software 2 Now you will complete the installation of the usual software by installing CMS. In general, the steps are as listed below. Detai...

Installing Mirrored Systems CentreVu CMS Release 3 Version 8 Disk-Mirrored Systems Factory installation procedures for disk mirroring 37 13. Enter the following command: 14. Do a CMSADM backup. For instructions, see the CentreVu CentreVu CMS R3V8 Administration (585-210-910) document or the maintena...

Maintaining Mirrored Systems CentreVu CMS Release 3 Version 8 Disk-Mirrored Systems Using the alternate boot device 39 3 Maintaining Mirrored Systems 3 This chapter contains procedures you are likely to need to maintain a disk-mirrored system, including replacing disk drives, recovering from disk fa...

Maintaining Mirrored Systems CentreVu CMS Release 3 Version 8 Disk-Mirrored Systems Maintaining the chkDisks crontab 40 Maintaining the chkDisks crontab 3 The chkDisks crontab runs each night and checks to see whether any potential or actual drive problems have been logged. The results of the search...

Maintaining Mirrored Systems CentreVu CMS Release 3 Version 8 Disk-Mirrored Systems Doing a CMSADM backup on a mirrored system 41 Doing a CMSADM backup on a mirrored system 3 This section describes how to perform a traditional CMSADM backup on a mirrored system. Mirroring is intended as a way to min...

Maintaining Mirrored Systems CentreVu CMS Release 3 Version 8 Disk-Mirrored Systems Restoring from a CMSADM Backup 43 Restoring from a CMSADM Backup 3 This section contains the procedure for restoring /cms data files from a traditional CMSADM backup tape. You may want to perform a CMSADM restore whe...

Maintaining Mirrored Systems CentreVu CMS Release 3 Version 8 Disk-Mirrored Systems Restoring from a CMSADM Backup 44 You may get error messages concerning the /home directory. These errors display when the directory is already present. Ignore them. 4. Restore any CentreVu CMS maintenance backups da...

Maintaining Mirrored Systems CentreVu CMS Release 3 Version 8 Disk-Mirrored Systems Repairing or rebuilding the /cms file system 45 Repairing or rebuilding the /cms file system 3 This section contains procedures for reinitializing the /cms file system. You may need to perform this procedure in case ...

Maintaining Mirrored Systems CentreVu CMS Release 3 Version 8 Disk-Mirrored Systems Repairing or rebuilding the /cms file system 46 The system prompt should return without error, as shown above. (Of course, file and block counts in the last line will vary.) In that case, continue with the next step....

Maintaining Mirrored Systems CentreVu CMS Release 3 Version 8 Disk-Mirrored Systems Repairing or rebuilding the /cms file system 48 9. Prepare the cms mirror for a new file system (this will take 15 to 30 minutes to complete): 10. This step remounts /cms . How that is done depends upon whether you h...

Maintaining Mirrored Systems CentreVu CMS Release 3 Version 8 Disk-Mirrored Systems Restoring a mirrored system from a CMSADM backup 49 Restoring a mirrored system from a CMSADM backup 3 This section shows you how to restore an entire mirrored system from a CMSADM backup. You might have to do this p...

Maintaining Mirrored Systems CentreVu CMS Release 3 Version 8 Disk-Mirrored Systems Restoring a mirrored system from a CMSADM backup 50 Step 3: Boot the system from the compact disk 3 The following tasks boot the system from the compact disc. Task Action Result 1 Turn on the power to the system unit...

Maintaining Mirrored Systems CentreVu CMS Release 3 Version 8 Disk-Mirrored Systems Restoring a mirrored system from a CMSADM backup 55 Step 8: Select the hard disks 3 This procedure selects hard disks for partitioning. Step 9: Set up the disk partitions 3 This procedure sets up the disk partitions....

Maintaining Mirrored Systems CentreVu CMS Release 3 Version 8 Disk-Mirrored Systems Restoring a mirrored system from a CMSADM backup 56 3 a. Click the space at the right of the slice number. b. Type the slice name (see the table below). c. Click the next space to the right and type the size (see the...

Maintaining Mirrored Systems CentreVu CMS Release 3 Version 8 Disk-Mirrored Systems Restoring specific files from a CMSADM backup 62 Restoring specific files from a CMSADM backup 3 To restore specific files from CMSADM backup tapes, enter the following commands at the system prompt (for example): (w...

Maintaining Mirrored Systems CentreVu CMS Release 3 Version 8 Disk-Mirrored Systems Adding new disks to a standard mirrored system 63 Adding new disks to a standard mirrored system 3 The procedure in this section adds new disks to a system that is already mirrored. In order to use this procedure, yo...

Maintaining Mirrored Systems CentreVu CMS Release 3 Version 8 Disk-Mirrored Systems Adding new disks to a standard mirrored system 64 6. Reboot the system and log in as the root user: 7. Partition the new disks by following the instructions in “Partitioning disks with the format command” on page 76 ...

Maintaining Mirrored Systems CentreVu CMS Release 3 Version 8 Disk-Mirrored Systems Adding new disks to a nonstandard mirrored system 66 Adding new disks to a nonstandard mirrored system 3 A “nonstandard” disk drive addition is one that cannot take advantage of advanced features of the olds setup sc...

Maintaining Mirrored Systems CentreVu CMS Release 3 Version 8 Disk-Mirrored Systems Replacing a faulty disk 69 Replacing a faulty disk 3 This section explains how to replace a faulty disk. The system does not need to be powered off or rebooted to perform this procedure. Step 1: Identify the faulty d...

Maintaining Mirrored Systems CentreVu CMS Release 3 Version 8 Disk-Mirrored Systems Replacing a faulty disk 71 Step 3: Detach the submirrors 3 To detach a submirror means to put it off line so you can access its constituent disk drives. You detach a submirror with a metadetach command. The command i...

Maintaining Mirrored Systems CentreVu CMS Release 3 Version 8 Disk-Mirrored Systems Replacing a faulty disk 72 Step 4: Remove state database replicas (boot disks only) 3 When you replace a boot disk, you must remove the state database replicas from the old disk and recreate them on the new one. A bo...

Maintaining Mirrored Systems CentreVu CMS Release 3 Version 8 Disk-Mirrored Systems Replacing a faulty disk 74 Step 7: Reattach the submirrors 3 1. Enter a metainit command to reinitialize the submirror. For example: If you receive an “already set up” message, ignore it. 2. Reattach the submirror by...

Maintaining Mirrored Systems CentreVu CMS Release 3 Version 8 Disk-Mirrored Systems State Database Replicas 75 State Database Replicas 3 Setting up replicas 3 1. Verify that the /etc/opt/SUNWmd/md.tab file is correct (see “Examples of valid system files” on page 79 ). 2. Enter the metadb command: Re...

Maintaining Mirrored Systems CentreVu CMS Release 3 Version 8 Disk-Mirrored Systems Partitioning disks with the format command 76 Partitioning disks with the format command 3 To use the format command to partition a disk, do the following steps: 1. Enter: # format A menu of disks displays. You are a...

Maintaining Mirrored Systems CentreVu CMS Release 3 Version 8 Disk-Mirrored Systems How to tell whether your mirrored system is standard 78 How to tell whether your mirrored system is standard 3 To tell whether mirroring was installed as a “standard” or “nonstandard” configuration, you can do one of...

Maintaining Mirrored Systems CentreVu CMS Release 3 Version 8 Disk-Mirrored Systems Examples of valid system files 79 Examples of valid system files 3 Valid vfstab files 3 Valid vfstab file for a non mirrored R3V8 CMS system: ___________________________________________________________________ #devic...

Troubleshooting CentreVu CMS Release 3 Version 8 Disk-Mirrored Systems Solstice DiskSuite problems 81 4 Troubleshooting 4 This chapter contains procedures for troubleshooting problems you may experience while installing or maintaining systems that use disk mirroring. Solstice DiskSuite problems 4 Th...

Troubleshooting CentreVu CMS Release 3 Version 8 Disk-Mirrored Systems The system fails to recognize all disk drives 82 The system fails to recognize all disk drives 4 If the system should fail to recognize all disk drives, do the following: 1. Reboot the system by entering the following command: Th...

Troubleshooting CentreVu CMS Release 3 Version 8 Disk-Mirrored Systems The system fails to recognize all disk drives 83 7. IMPORTANT! If you had to do a reset-all command, reset autoboot? to true by entering the following command: Failure to reset autoboot? before the next reboot will cause the rebo...

Troubleshooting CentreVu CMS Release 3 Version 8 Disk-Mirrored Systems Fixing “needs maintenance” messages 84 Fixing “needs maintenance” messages 4 On rare occasions mirrors may get severely out of sync. An extreme example is when a disk is removed from a powered system without first being detached ...

Troubleshooting CentreVu CMS Release 3 Version 8 Disk-Mirrored Systems Boot problems 85 Boot problems 4 Generally speaking, most boot problems are the result of one of two problems: either you are trying to boot from the wrong device or the primary boot device is not available. This section suggests...

Troubleshooting CentreVu CMS Release 3 Version 8 Disk-Mirrored Systems Boot problems 86 Excessive reboot time 4 Problem: The system takes a long time to come back up after a reboot and seems to stop at the configuring multicast point. Possible workaround: The Enterprise 3000, by default, tries to co...

Troubleshooting CentreVu CMS Release 3 Version 8 Disk-Mirrored Systems Log files 87 Log files 4 A disk-mirrored system contains the following system log files: If a log seems to indicate a problem, it may take an experienced troubleshooter to determine the nature of the problem. The logs are checked...

Troubleshooting CentreVu CMS Release 3 Version 8 Disk-Mirrored Systems Error messages 88 Error messages 4 The table that follows lists and explains error messages you can receive related to Solstice DiskSuite and disk mirroring. The messages are presented in alphabetical order, ignoring special char...

Troubleshooting CentreVu CMS Release 3 Version 8 Disk-Mirrored Systems Error messages 89 Message: component is attached metattach: hostname : d21: growing of metadevice delayed Explanation: Submirrors are out of sync. Response: Enter the command: metasync d21 This command effectively resyncs submirr...

Troubleshooting CentreVu CMS Release 3 Version 8 Disk-Mirrored Systems Error messages 90 Message: /etc/system has been updated since the last reboot. CMS cannot run without an up- to-date /etc/system file. Explanation: /etc/system can change when a particular Solaris patch is applied to the system o...

Troubleshooting CentreVu CMS Release 3 Version 8 Disk-Mirrored Systems Error messages 92 Message: panic: vfs_mountroot: cannot mount root rebooting... resetting.... Explanation: The system is misconfigured. Response: There are two possible causes: 1. You attempted to boot from a nonbootable device. ...

Troubleshooting CentreVu CMS Release 3 Version 8 Disk-Mirrored Systems Error messages 93 Message: stale databases Response: The state database contains old information. Recreate (see “ Recreating the Replicas and Reattaching the Disk” in Chapter 3). Message: state database information not found, Dis...

Troubleshooting CentreVu CMS Release 3 Version 8 Disk-Mirrored Systems Error messages 94 Message: The disk is not recognized by cms. Explanation: The disk is either not a standard Sun disk drive, or is larger than 4.2 gigabytes. Response: Replace the disk with a standard Sun disk drive of not more t...

Troubleshooting CentreVu CMS Release 3 Version 8 Disk-Mirrored Systems Error messages 95 Message: This command may hang the system if a Stop- A or halt command has been executed. Please type reset-all to reset the system before executing this command. Do you wish to continue? Response: 1. Enter: N (...

Troubleshooting CentreVu CMS Release 3 Version 8 Disk-Mirrored Systems Error messages 96 Message: Usage: olds -mirrored -check_disks| -mirrored -mk_files|-metadbs|-cleanup| -mirrored -setup [disk name] Explanation: You have mistyped a command. Response: Retry the command. See Chapter 3 for informati...

CentreVu CMS Release 3 Version 8 Disk-Mirrored Systems 97 Index Symbols /cms mirror . . . . . . . . . . . . . . . . . . . . . . 5 A alternate boot device creating . . . . . . . . . . . . . . . . . . . . 26 , 35 testing . . . . . . . . . . . . . . . . . . . . . . 27 using . . . . . . . . . . . . . . ...