Set the time on your HMC
AnthonyEnglish 270000RKFN Visits (14098)
On a virtualised system, a large number of management tasks can be done via the HMC (Hardware Management Console) or the IVM (Integrated Virtualization Manager). I sometimes come across sites where they're afraid to touch the HMC at all, so the date and time are set to whatever was shipped, and often that is out by some hours. In this post we'll look at a simple task on the HMC: setting the time.
"Who cares if the HMC time is wrong?"
Ah yes. That's the spirit. Well, here at AIX Down Under, we take punctuality seriously and frown on those who don't. And if that is not reason enough to make you tremble, think of this: when eventually your remarkably reliable hardware does record a fault for something, you may have to do a mental translation of every single HMC Event Log to work out whether your server really went down last night or some time in the last millenium.
All of the following instructions are for HMC Version 7. If you happen to be on an older version, then have a look at HMC Updates with Sunscreen.
Changing the date and time
The IBM Systems Hardware Information explains how to Change the date and time on the HMC:
HMC Management > Change Date and Time. If you select UTC in the Clock field, the time setting will adjust automatically for daylight saving time in the time zone you select.
Of course you will need to set the Time zone as appropriate for your own HMC.
You can also configure the HMC to point to an NTP server. You may already be familiar with configuring NTP on AIX. If you do the same on your HMC, it will allow you to keep the time in synch with other servers on your network. Here's what the NTP screen looks like on the HMC:
Keep the good times rolling
It's not at all hard to set the time on the HMC, and if you should ever have to sift through HMC Event logs you'll be glad you did it. So will we.