CentreVu Call Management System
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 Table of Contents
 CentreVu CMS Release 3 Version 8 Disk-Mirrored Systems
 Index
CentreVu CMS Release 3 Version 8 Disk-Mirrored Systems Iii
 CentreVu CMS Release 3 Version 8 Disk-Mirrored Systems
 Disk mirroring defined
Metadevices
Backed up just as often as unmirrored systems
 Concatenated
 Mirrors
State databases
 Solstice DiskSuite
 How CMS implements disk mirroring
D19
D21 D20
 D11
D13 D12
D15
D17 D16
 Mirror layouts
Mirror d13 Mirror d21 Mirror d17
Root filesystem Cms filesystem
Submirror Disks
 Enterprise
 Required software
Additional references
 How CMS implements disk mirroring
 How to upgrade an Enterprise platform to disk mirroring
Disk drive slots
 Increasing system capacity
Identify mirror devices
 Device Names
Submirror d15 Submirror d16
 System
Do this step only if you have an Enterprise 3500 system
# ls -l /dev/dsk/c1t6d0s0
 How to upgrade an Enterprise platform to disk mirroring
 Ok boot -r
# ls -l /dev/dsk/c2t6d0s0
Do this step only if you have an Enterprise 3000 system
Enter format partition
 3500
Disk Part
Flag
Starting
 Enter partition q
# export PATH=$PATH/usr/opt/SUNWmd/sbin/olds
# metadb -a -c3 -f /dev/rdsk/device
# metadb
 Dx y 1 device
 Set up the mirrors for the root file system
# metainit -f d11 D11 Concat/stripe is set up
# metainit -f d13 D13 Concat/stripe is set up
# metainit -f d12 D12 Concat/stripe is set up
 Password password
# metaroot d13
# /usr/sbin/shutdown -i6 -g0 -y
 Set up the mirrors for the swap space
# metainit -f d15 D15 Concat/stripe is set up
# metainit d17 D17 Concat/stripe is set up
# metainit d16 D16 Concat/stripe is set up
 # swap -a /dev/md/dsk/d17
 Set up the /cms mirror
 Verify disk space
Disk Space Verification
 Create an alternate boot device
# ls -l /dev/rdsk/newbootdev
 Ok nvalias bootdevice2 device
Ok boot bootdevice2
# /usr/sbin/shutdown -y -i0 -g0
Sbus@3,0/SUNW,fas@3,8800000/sd@2,0
 Factory installation procedures for disk mirroring
Install the hardware
 Install the application software
3500 Disk Part
 Check the disk.type file
# stty erase Ctrl-H # ksh -o
 # olds -mirrored -mkfiles
 Run the setup scripts
Ok boot -r Hostname console login root Password password
 14171072 14205776
14309888
14376992 14446400
14550512
 Disk Space Verification
 Install the CMS software
 Enter the following command ok devalias
 # chmod +x /olds/chkDisks
 Factory installation procedures for disk mirroring
 Using the alternate boot device
Ok setenv boot-device disk # eeprom boot-device=disk
 Canceling chkDisks
Maintaining the chkDisks crontab
Activating chkDisks Verifying chkDisks
# crontab -l
 Doing a Cmsadm backup on a mirrored system
Run the backup
Print the vfstab file
# lp /etc/vfstab
 Label and store the tapes
 Restoring from a Cmsadm Backup
# cpio -icmudv -C 10240 -I device
 Restoring from a Cmsadm Backup
 Repairing or rebuilding the /cms file system
Repairing /cms
# umount /cms
 Rebuilding /cms
If you altered the vfstab file earlier , do the following
If you did not alter the vfstab file, do the following
 # metainit d19 D19 Concat/Stripe is set up
# metainit d21 mirror is set up
# metadetach d21 d20 D21 submirror d20 is detached
# metaclear d20 D20 Concat/Stripe is cleared
 # newfs Dev/md/rdsk/d21
14585216 14654624
14724032 14793440
 Restoring a mirrored system from a Cmsadm backup
Power off the system
 Ok boot cdrom
Task Action Result
Select Language
 Identify the system
Continue
Confirm Information
Click Continue
 Set the Name Service options
255.255.255.0 is
 Installation Initial
Set the date and time
Geographic Region
Region
 Installation screen is
Services? screen is
Allocate Client
Select Languages
 Select the hard disks
 GB Disk
Slice Name
 Click Begin Installation Reboot/No Reboot
Click Reboot
Click Continue Mount Remote File
 Complete the OS installation
 # /olds/olds -cleanup
Reestablish the disk mirrors
 # PATH=$PATH/usr/opt/SUNWmd/sbin/olds # export Path
# olds mirrored -mkfiles Success, creating md.tab.new
# olds -mirrored -checkdisk Success, checking md.tab.new
 Hostname login root Password root password
 Restoring specific files from a Cmsadm backup
 Adding new disks to a standard mirrored system
# /usr/opt/SUNWmd/sbin/metastat
 # olds -mirrored -mkfiles c0t10d0 c0t11d0
 # olds -mirrored -setup newdisk1 newdisk2
 Adding new disks to a nonstandard mirrored system
# df -k /cms
 # metattach d19 newdisk1 # metattach d20 newdisk2
# metattach d19 c0t10d0s1 # metattach d20 c0t11d0s1
 # growfs -M /cms /dev/md/rdsk/d21
# metastat
 Replacing a faulty disk
Identify the faulty disk
# ls -l /dev/dsk/c Lrwxrwxrwx 1 root Root
 Identify the submirrors
Size 14960160 blocks Stripe Device
Dbase State Hot Spare C0t2d0s1 Okay Stripe Device
Dbase State Hot Spare C0t4d0s3 Okay
 Detach the submirrors
Metadetach metamirror submirror
 Remove state database replicas boot disks only
Replace the faulty disk drive
 Recreate the state database replicas
 Reboot the system boot disks only
You may delay this step until a more convenient time
# metainit d20
# metattach d21 d20
 Setting up replicas Replacing replicas
State Database Replicas
# metadb -d -f /dev/dsk/c0t0d0s1
# metadb -d -c4 -f /dev/dsk/c0t0d0s1
 Partitioning disks with the format command
Enter # format
FC-AL E
 Enter partition q
 How to tell whether your mirrored system is standard
Root Metadevice Device Names
 Examples of valid system files
Valid vfstab files
Valid vfstab file for a non mirrored R3V8 CMS system
Valid vstab file for an R3V8 CMS system with mirrored disks
 Valid md.tab files
Valid md.tab file for a 3 disk non mirrored R3V8 CMS system
Valid md.tab file for a 4 disk mirrored R3V8 CMS system
 Excessively long resync
Unmount /cms umount /cms
Enter mount /cms Remounts /cms
 If you receive a This command may hang the system
Enter setenv auto-boot? false
System fails to recognize all disk drives
 Ok setenv auto-boot? true
Ok boot -r Console login root Password
Toshiba XMS5701TASUN12XCD099704/09/97
 Fixing needs maintenance messages
C0t0d0s0 Okay
 Boot problems
Primary boot device is not available
Ok setenv boot-device bootdevice2
 Excessive reboot time
Touch /etc/notrouter
 Log files
File Name Description
# ls /olds/chkDisks
# /olds/chkDisks
 Error messages
Error Messages Explanation Response
Message Explanation Response
# metareplace -e d13 c0t0d0s0
 Device devicename cannot be setup or does Not exist
Disk diskname already setup, exiting
Device devicename will not be used
Message Explanation
 Message Response
 No disks found! Internal error
Command not found
Metadb hostname cxtyd0sz has a Metadevice database replica
Metadetach systemname d21 resync Progress
 Message
 Error Messages Response
 DiskSuite Software must be installed To run this script
File filename could not be restored
Disk is not recognized by cms
/cms filesystem needs to be mounted
 Enter reset-all
Unbalanced configurations not supported
Touch /cms/db/unixstart cannot create
 Configuration, configure manually
You must be root in order to run this command
Usage olds -mirrored -checkdisks
 Symbols
Index
 Needs maintenance messages
 How Are We Doing?