Page 3 - CentreVu CMS Release 3 Version 8 Disk-Mirrored Systems; Table of Contents; Introduction to Disk Mirroring
CentreVu CMS Release 3 Version 8 Disk-Mirrored Systems i Table of Contents Chapter 1: Introduction to Disk Mirroring Disk mirroring defined . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 Metadevices . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ...
Page 7 - Disk mirroring defined; Metadevices
Introduction to Disk Mirroring CentreVu CMS Release 3 Version 8 Disk-Mirrored Systems Disk mirroring defined 1 1 Introduction to Disk Mirroring 1 This chapter introduces you to “disk mirroring,” an optional feature of CentreVu Call Management System (CMS) that provides you with a completely redund...
Page 8 - concatenated stripes; chunks
Introduction to Disk Mirroring CentreVu CMS Release 3 Version 8 Disk-Mirrored Systems Disk mirroring defined 2 The illustration below shows a simple, two-slice metadevice. Concatenated metadevices 1 A metadevice can be configured as any one of three basic types: striped, concatenated, or concatenate...
Page 9 - State databases; Solstice DiskSuite; Mirrors
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...
Page 11 - How CMS implements disk mirroring
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...
Page 12 - root
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...
Page 13 - Mirror layouts; Mirror layout on a; Sun Enterprise
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...
Page 14 - Required hardware
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...
Page 15 - Required software; Sun Microsystems; Solaris
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 ...
Page 17 - Installing Mirrored Systems; How to upgrade an; Disk drive slots
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...
Page 18 - Device/Metadevice Names
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...
Page 19 - Enterprise
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 ...
Page 20 - system; Do this step only if you have an
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...
Page 23 - Partitioning; Partitioning; overlap
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...
Page 24 - table entries
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...
Page 26 - file system
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...
Page 30 - mirror
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 ...
Page 31 - Disk Space Verification
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...
Page 32 - newbootdev
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...
Page 33 - If there is no line for
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...
Page 34 - Factory installation procedures for disk mirroring
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...
Page 36 - file
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...
Page 39 - DiskSuite
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 ...
Page 40 - approximately
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...
Page 41 - CentreVu CMS R3V8 Software Installation
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...
Page 43 - CentreVu
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...
Page 45 - Maintaining Mirrored Systems; Using the alternate boot device
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...
Page 46 - Maintaining the chkDisks crontab; Verifying chkDisks
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...
Page 47 - Doing a CMSADM backup on a mirrored system; vfstab
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...
Page 49 - Restoring from a CMSADM Backup
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...
Page 50 - CentreVu CMS R3V8
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...
Page 51 - Repairing or rebuilding the; Repairing; Do this step only if the
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 ...
Page 52 - If you did NOT alter the; Rebuilding
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....
Page 54 - file during the repair procedure, do the
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...
Page 55 - Restoring a mirrored system from a CMSADM backup; Sun
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...
Page 56 - Task
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...
Page 61 - Available
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....
Page 62 - Names in
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...
Page 68 - Restoring specific files from a CMSADM backup
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...
Page 69 - Adding new disks to a standard mirrored system; line.) All metadevices must have a status
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...
Page 70 - avail
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 ...
Page 72 - Adding new disks to a nonstandard mirrored system
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...
Page 75 - Replacing a faulty disk
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...
Page 77 - If the faulty disk is a boot disk, a
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...
Page 78 - sure you partition the new disk drive!
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...
Page 80 - You may delay this step until a more convenient time.
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...
Page 81 - State Database Replicas; Setting up replicas; Replacing replicas
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...
Page 82 - Partitioning disks with the
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...
Page 84 - How to tell whether your mirrored system is standard; Root Metadevice Device Names
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...
Page 85 - Examples of valid system files; Valid; files
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...
Page 87 - Troubleshooting; Solstice DiskSuite problems; filesystem; Verifies that space is available.
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...
Page 88 - The system fails to recognize all disk drives
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...
Page 89 - true
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...
Page 90 - Fixing “needs maintenance” messages; Needs maintenance
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 ...
Page 91 - Boot problems; bootdevice2
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...
Page 92 - configuring multicast
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...
Page 93 - Log files
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...
Page 94 - Error messages
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...
Page 95 - hostname
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...
Page 96 - command
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...
Page 98 - Explanation: The system is misconfigured.; filebackup
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. ...
Page 99 - Recreating the Replicas and Reattaching the
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...
Page 100 - Explanation: The disk is either not a standard Sun disk drive, or is; filename
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...
Page 101 - Explanation: A CMSADM backup was done when CMS was still; Explanation: You tried to set up a system with an odd number of disk
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 (...
Page 102 - Explanation: You have mistyped a command.
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...
Page 103 - Index; Symbols
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 . . . . . . . . . . . . . . ...