Often in SMIT you can use the default settings, but when it comes to creating Enhanced Journalled File Systems – better known as JFS2 – there are three options which you’ll probably want to change from the defaults. Of course you need to set the MOUNT POINT, but the other three I like to change are: Mount AUTOMATICALLY at system restart? yes (and why wouldn’t you?) Logical volume for Log: INLINE Allow internal snapshots? yes SMIT aside: Tab Toggles In SMIT, when you have a choice between two options, such as yes and no , you can hit the Tab key... [More]

Marcações:  jfs crfs mkfs volume lv logical jfs2 system snapshot mount chfs journaled file performance inline cio enhanced

"Sorry, I'm not here" From time to time I'm asked to give a basic introduction to some aspect of AIX for someone who has no Unix hands-on experience at all. No matter how easy I might think a task is, it really can be daunting to someone who has never done it before, or even seen it done. The temptation is sometimes to show a beginner just how quickly and cleverly I can do something, while the poor student is patiently watching over my shoulder and taking notes. I was showing someone how to assign a CD-ROM to an LPAR using DLPAR and... [More]

Marcações:  administration system aix management training

YOUR TIME IS PRECIOUS! When you need to increase a file system, you can use our old friend smitty. But stepping through the SMIT menus could take a good 3 seconds (at least!) And as a good AIX guru, your time is precious. In a perfect world AIX gurus like you should charge your time by the nanosecond! (Just go tell your boss that the bloke who writes AIX Down Under said so.) Alas, the world is not perfect, as you may have discovered after that friendly chat with the boss. Even so, you can save a few seconds when you have to increase a file... [More]

Marcações:  system decrease jfs2 disk nanoseconds guru chfs gigabyte space lv increase logical_volume aix jfs precious block_size file

Even virtualisation has its limits There are a lot of sites out there that are on AIX 5.3 and are only now thinking about dipping their toes into AIX 6.1. Isn't it about time? And it's not that hard. As you've seen on AIX Down Under, installing a new LPAR in a virtualised environment is so easy that the temptation may be just to go creating LPARs straight away and keep going till you run out of time. Alas, even virtualisation has limitations. They're called hardware. Bare minimum CPU, memory and disk For an LPAR with a base AIX installation on... [More]

Marcações:  requirements tl4 aix disk file minumum install 6100-04 memory cpu system rootvg

What? A dump? AIX, like many other operating systems, provides the capability of making a system dump. This is nothing to do with the Windows Recycle bin or a Trash folder, a kind of holding place in case you want to undelete something. ("Undelete"? Who invented that word?). This IBM technote on Managing System Devices explains that you need a system dump which "automatically copies selected areas of kernel data to the primary dump device." Care factor zero? Now "automatically copying selected areas of kernel... [More]

Marcações:  kernel support aix device sysdumpdev dumpcheck capture dump crash operating_system data system

  <!-- @page { margin: 2cm } P { margin-bottom: 0.21cm } A:link { so-language: zxx } --> When green was a colour ... Cast your mind back to 1990 (if you were born - otherwise indulge your Aussie Grandpa as he strolls down Memory Lane). The "data... [More]

Marcações:  terminal console ssh tty vtmenu hmc aix_down_under aix hardware_management_conso... system

Updating the HMC in comfort ... It's important to keep your Hardware Management Console firmware reasonably up to date. The HMC looks after the server hardware management. It also allows you to manage LPARs - create them, start and stop them, access the console and even assign resources dynamically. The HMC interacts closely with the hypervisors of the IBM POWER™ Systems so the HMC needs to be at a level which is compatible with the firmware of the managed system itself. Check your firmware compatibility on the IBM Systems Support web site.... [More]

Marcações:  hmc access centre remote management upgrade power system firmware ftp server managed update data