If you have a VMAX running 5876, beware when deleting hypers on disks containing VAULT devices. One of my mainframe guys deleted hypers from his disk group in order to make them larger. Once they are deleted, the disks without VAULT devices are all free. Disks that do have VAULT devices do not return their free space.
Here’s an example:
If I run symdisk -v -hypers -gaps -sid xxx-disk_group <disk group number) list |MORE , I can see the hypers on the disks in that group. As we can see, disk DF-10D D5 does not contain a VAULT device. My free space on this disk consists of a single 8MB GAP at the end.
If I go and delete the 15 devices from this disk, here’s what I get:
A nice clean disk with 279GB of free space ready to go.
Here’s a disk with a VAULT device:
Note the 5200MB VAULT, and the 13417GB GAP at the end, and note the free space number. The GAP is the free space. Now I’ll delete the 14 hypers.
Now, with all the hypers gone, my free space is still 13417. So I’m missing the space that should have been freed when deleting those 14 18GB devices.
I have a ticket open on this, and the engineering team is looking at it. I wanted to warn you guys, so you don’t get stuck with the same issue before they get it fixed.
Here is my annual “Tom’s Picks List” for VMWorld 2012. This list began several years ago as an email recommendation of some presenters to several of my strategic customers, and was passed around and is now asked about every year (so apparently it has been helpful!) I have gone through the content catalog and selected ONLY those sessions and presenters that I know personally, have presented with in other events, or come highly recommended by other colleagues I trust. There are also a few sessions this year I selected due to the topic, and the value of the topic’s subject matter for an attendee. For example, the vCenter 5.1 session (INF-VSP1353), is a session that everyone needs to attend since it is a deep dive into the latest version of the management interface into vSphere AND the presenters rock! Overall, I have listed 65 of the sessions out of 165 as of this posting that are listed in the content catalog.
Pay particular attention to the “Highly Recommended” sessions as these will likely fill up quickly, and often feature the “rock stars” and bloggers we all know and follow. Should we add any additional sessions or if someone would like to add to the list, please do so in the comments section below. Remember, YMMV on if you think my picks are accurate or worthy, so keep in mind, this is a totally personal recommendation list. I am sure there are a number of other excellent sessions and presenters who are not on the list, so if you wish to promote other sessions or speakers, please do so below.
I am a Hands On Lab Principal this year, so will be in the HOL Lab most of the time, so feel free to stop by and say hello!
See you in San Francisco and Barcelona!
Thomas MacKay VCP, CNE, Master ASE
Staff Systems Engineer
US Central Region Strategic Accounts
Tom’s Picks for VMWorld 2012-Sessions and Speakers Recommendations