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Enabling Call Home for Managed Systems
Managed systems that are managed by one (or two) HMCs can perform call home via the associated HMCs. To do this, at least one of the HMCs must be configured as a call home server.
The command “ms lscallhome” can be used to display whether call home is enabled or not. For each HMC it is stated whether Call Home is enabled through this HMC or not (column CALLHOME HMC1 and HMC2):
$ ms lscallhome
CALLHOME
MS SERIAL_NUM HMC1 HMC2
ms11 17G6G7S Disabled Disabled
ms12 07G6G8R Enabled Enabled
ms13 323B31V Enabled Enabled
ms14 323B31V Enabled Enabled
…
$
Call home can be enabled for a managed system using the command “ms enablecallhome”:
$ ms enablecallhome ms11
$
If a managed system has 2 HMCs, call home for the managed system is enabled on both HMCs:
$ ms lscallhome
CALLHOME
MS SERIAL_NUM HMC1 HMC2
ms11 17G6G7S Enabled Enabled
ms12 07G6G8R Enabled Enabled
ms13 323B31V Enabled Enabled
ms14 323B31V Enabled Enabled
…
$
If you want to temporarily disable Call Home, e.g. due to maintenance work, you can do this with “ms disablecallhome”:
$ ms disablecallhome ms11
$
At the end of the maintenance work, Call Home should be enabled again!
If you want to enable (or disable) call home for all managed systems of an HMC, you can use the “-a” (all managed systems) option of the “hmc enablecallhome” (or “hmc disablecallhome”) command:
$ hmc disablecallhome -a hmc01
$
If Call Home is enabled via the second HMC, then it remains enabled there:
$ ms lscallhome
CALLHOME
MS SERIAL_NUM HMC1 HMC2
ms11 17G6G7S Disabled Enabled
ms12 07G6G8R Disabled Enabled
ms13 323B31V Disabled Enabled
ms14 323B31V Disabled Enabled
…
$
Note: Please note that Call Home is then also enabled or disabled for the HMC itself!