Usage notes
5-27
HVM Navigator User's Guide - Migration
Migrating LPAR form the standby server blade after Cold
standby switching
When you have an LPAR migrate from the standby server blade to another
server blade after "Cold standby switching" and then you execute "Recover to
active system", 2 LPARs with the same configuration are created on 2 server
blades: the standby server blade and another server blade. So, these 2 LPARs
have the same WWNs and they can access to the same LUs. When the 2
LPARs access to one of the same LUs simultaneously, the LU may be broken.
For the detail about the condition which the above event might occur, confirm
the explanation below.
You operate HVMs on server blades with any of the following versions of
ServerConductor/Blade Server Manager.
P-2418-6287 ServerConductor/Blade Server Manager 08-60 or higher
P-2418-6587 ServerConductor/Blade Server Manager Plus 08-21
P-2418-6297 ServerConductor/Blade Server Manager 09-00 to 09-53
P-2418-6597 ServerConductor/Blade Server Manager Plus 09-00
You operate HVMs according to the following procedure.
a.
"Cold standby switching" occurs between the active server blade A to
the standby server blade B.
b.
Migrate an LPAR from the standby server blade B to the server blade C.
c.
Execute "Recover to active system" for the active server blade A and
the standby server blade B.
To prevent the above event occurring, follow the procedure below after the
above (b).
1.
Register the standby server blade B as the active server blade.
(The server blade B is automatically removed from the standby pool.)
2.
Register the active server blade A as the standby server blade.
We recommend that you back up HVM configuration for the active server
blade B. If you back up HVM configuration for the activate server blade B
and then a fatal error occurs on the activate server blade A after "Manual
Switching Execution", you could restore HVM configuration on the active
server blade A with the backup file.
3.
Shut down the active server blade B and then execute "Manual Switching
Execution".
4.
Register the standby server blade A as the active server blade.
5.
Register the active server blade B as the standby server blade.
Summary of Contents for NVM Navigator v03-07
Page 8: ...viii Contents HVM Navigator User s Guide Migration ...
Page 22: ...1 8 Overview HVM Navigator User s Guide Migration ...
Page 100: ...2 78 Usage environments HVM Navigator User s Guide Migration ...
Page 124: ...3 24 Migration procedures HVM Navigator User s Guide Migration ...
Page 138: ...3 38 Migration procedures HVM Navigator User s Guide Migration 10 Click Show Config button ...
Page 165: ...Migration procedures 3 65 HVM Navigator User s Guide Migration 4 Click Close button ...
Page 205: ...Migration procedures 3 105 HVM Navigator User s Guide Migration 3 Click OK button ...
Page 254: ...5 18 Usage notes HVM Navigator User s Guide Migration Figure 5 1 Migration Progress window ...
Page 258: ...5 22 Usage notes HVM Navigator User s Guide Migration Figure 5 3 HVM Console window ...
Page 266: ...5 30 Usage notes HVM Navigator User s Guide Migration ...
Page 310: ...6 44 Troubleshooting HVM Navigator User s Guide Migration ...
Page 314: ...7 4 List of icons HVM Navigator User s Guide Migration ...