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VCS Application Note: Sun Enterprise 10000 Dynamic Reconfiguration 
Dynamic reconfiguration in VCS environment 

Follow the Sun procedure to attach the system board, described here briefly: 

dr> 

init_attach 

sb#

 

Complete the attach operation: 

dr> 

complete_attach 

sb#

 

Verify that the DR attach operation has succeeded. Type: 

dr> 

drshow 

#sb

 

The new system board should show in the list of configured boards. 

Exit the 

dr

 shell. 

dr> 

exit 

Log in as root to the domain where you are adding the system board. Enable 
the controller by entering: 

vxdmpadm enable ctlr=

ctlr#

 

When you have successfully attached and enabled the system I/O board, 
unfreeze any frozen service groups: 

hagrp -unfreeze 

ser_grp_name

 

Repeat for each service group. 

Verify that VCS is still up and running. 

Detaching CPU/memory boards 

Note: 

Use the following procedure if no I/O devices on the system board are 

used. 

Make sure the 

kernel_cage_enable

 variable is set. 

1

 

Freeze the VCS service groups running on the domain where you intend to 
detach a CPU/Memory board. Freezing the service groups prevents them 
from being taken offline or failed over. Repeat the following command for 
each service group: 

hagrp -freeze 

ser_grp_name

 

Connect to the SSP server and log in to the domain whose system board 
requires Dynamic Reconfiguration (DR). 

ssp:D1% 

echo $SUNW_HOSTNAME 

Enter the 

dr

(1M) shell: 

ssp:D1% 

dr

In the window where you are running DR, start detaching the I/O board by 
entering: 

dr> 

drain 

sb#

 

Monitor the progress of the drain operation by entering: 

dr> 

drshow 

sb#

 drain 

Summary of Contents for Veritas Solaris

Page 1: ...Veritas Cluster Server Application Note Sun Enterprise 10000 Dynamic Reconfiguration Solaris 5 0 N18540F...

Page 2: ...s licensors if any THIS DOCUMENTATION IS PROVIDED AS IS AND ALL EXPRESS OR IMPLIED CONDITIONS REPRESENTATIONS AND WARRANTIES INCLUDING ANY IMPLIED WARRANTY OF MERCHANTABILITY FITNESS FOR A PARTICULAR...

Page 3: ...rights associated with this product are listed in the accompanying release notes Solaris is a trademark of Sun Microsystems Inc Technical support For technical assistance visit http support veritas co...

Page 4: ......

Page 5: ...VCS Application Note Sun Enterprise 10000 Dynamic Reconfiguration Introduction Supported hardware Supported software Dynamic reconfiguration in VCS environment Using VM without DMP enabled...

Page 6: ...or reconfigure it into the domain Note Currently VCS does not support using DR in clusters where I O controllers and storage use Sun s Alternate Pathing AP In a VCS cluster of domains it s possible t...

Page 7: ...ing environment variable to enable DR Before performing DR operations on a domain you must first set the appropriate environment variable Enable the kernel cage variable for DR Using the Solaris 8 ope...

Page 8: ...can be physically removed Replacing the board a controller board in this case involves physically installing it and reconnecting it to the shared storage Reconfiguring the board requires using DR com...

Page 9: ...rain 9 When you see the message Percent Complete 100 0 KBytes remaining complete the detach operation dr complete_detach sb 10 To verify that the board is no longer configured type the following comma...

Page 10: ...hagrp unfreeze ser_grp_name Repeat for each service group 9 Verify that VCS is still up and running Detaching CPU memory boards Note Use the following procedure if no I O devices on the system board...

Page 11: ...ry boards Note Use the following procedure if none of the I O devices on the system board are used 1 Freeze the VCS service groups running on the domain where you intend to attach a system board Repea...

Page 12: ...of the disks in the shared storage and you must perform DR operations within the cluster we recommend using the VCS DiskReservation agent to guard against data corruption In the event of a split brain...

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