Lucent Technologies CentreVu Call Management System Release 3 Version 8 Guide

  Maintaining Mirrored Systems  CentreVu CMS Release 3 Version 8 Disk-Mirrored Systems
State Database Replicas75
State Database Replicas 3
Setting up replicas31. 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:
Replacing replicas3Sometimes replicas may have to be replaced. A replica can become 
corrupted, for example, and in that case needs to be removed and then 
recreated. The procedure to do that is as follows:
1....

  Maintaining Mirrored Systems  CentreVu CMS Release 3 Version 8 Disk-Mirrored Systems
Partitioning disks with the format command76
Partitioning disks with the format command3
To use the format command to partition a disk, do the following steps:
1. Enter:# format
A menu of disks displays. You are asked to select one.
2. Enter the menu number of the disk to be partitioned. A list of 
commands displays, followed by the format> 
prompt.
3. Enter:format> partition
The partition> 
prompt displays.
4....

  Maintaining Mirrored Systems  CentreVu CMS Release 3 Version 8 Disk-Mirrored Systems
Partitioning disks with the format command77
6. Enter:partition> print
The partition table displays and the partition>
 prompt returns. 
Compare the display to the 
Partitioning table to make certain you 
have repartitioned the disk properly. If not, repeat step 5.
7. Enter:partition> label
The system responds Ready to label disk, continue?
.
8. Enter:y
9. The partition>
 prompt returns.
10. Enter:partition> q
The...

  Maintaining Mirrored Systems  CentreVu CMS Release 3 Version 8 Disk-Mirrored Systems
How to tell whether your mirrored system is standard78
How to tell whether your mirrored system is standard3
To tell whether mirroring was installed as a “standard” or “nonstandard” 
configuration, you can do one of two things. Either:
a. Enter the command:# metastat d11 d12
b. Edit the 
/etc/opt/SUNWmd/md.tab file
Examine the command output or the contents of the file. You are looking 
for the d11 and d12 metadevices...

  Maintaining Mirrored Systems  CentreVu CMS Release 3 Version 8 Disk-Mirrored Systems
Examples of valid system files79
Examples of valid system files3
Va l i d  vfstab files3
Va li d  vfstab file for a non mirrored R3V8 CMS system:
___________________________________________________________________
#device device mount FS fsck mount mount
#to mount to fsck point type pass at boot options
#
#/dev/dsk/c1d0s2 /dev/rdsk/c1d0s2 /usr ufs 1 yes -
fd - /dev/fd fd - no -
/proc - /proc proc - no -...

  Maintaining Mirrored Systems  CentreVu CMS Release 3 Version 8 Disk-Mirrored Systems
Examples of valid system files80
Va l i d  md.tab files3
Va li d  md.tab file for a 3 disk non mirrored R3V8 CMS system:
____________________________________________________
#state database replicas
mddb00 c0t0d0s1
mddb01 c0t1d0s0
#/cms
d19 3 1 /dev/rdsk/c0t0d0s3 1 /dev/rdsk/c0t1d0s1 1 /dev/rdsk/c1t0d0s1
d21 -m d19
____________________________________________________
Va li d  md.tab file for a 4 disk mirrored R3V8 CMS...

  Troubleshooting  CentreVu CMS Release 3 Version 8 Disk-Mirrored Systems
Solstice DiskSuite problems81
4
Troubleshooting4
This chapter contains procedures for troubleshooting problems 
you may experience while installing or maintaining systems 
that use disk mirroring.
Solstice DiskSuite problems4
The root filesystem 
runs out of space 
during a system 
install
4
If you run out of space on the /(root) file system—while trying to install 
Solaris patches, for example—you probably installed your /cms swap...

  Troubleshooting  CentreVu CMS Release 3 Version 8 Disk-Mirrored Systems
The system fails to recognize all disk drives82
The system fails to recognize all disk drives4
If the system should fail to recognize all disk drives, do the following:
1. Reboot the system by entering the following command:
The system reboots and displays the ok
 prompt:
2. Turn off the system unit.
3. Turn off all external devices starting with the system monitor and 
working toward the device farthest from the system unit.
4....

  Troubleshooting  CentreVu CMS Release 3 Version 8 Disk-Mirrored Systems
The system fails to recognize all disk drives83
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 
reboot to stop at the boot prompt instead of proceeding through the 
normal boot-up.
8. When you have verified that the system is recognizing all its disk 
drives, reboot the system with a boot -r
 command...

  Troubleshooting  CentreVu CMS Release 3 Version 8 Disk-Mirrored Systems
Fixing “needs maintenance” messages84
Fixing “needs maintenance” messages4
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 with a metadetach
 command. The situation is indicated 
by the appearance of a 
Needs maintenance message in a State line of a 
metastat
 response. For example:
In such situations the metareplace
 command...