Comments on: VMware: Don't shut down that virtual machine
Customers who turned off virtual machines running VMware ESX 3.5 Update 2 were unable to turn them back on due to a licensing flaw. But the company has posted a patch.
Customers who turned off virtual machines running VMware ESX 3.5 Update 2 were unable to turn them back on due to a licensing flaw. But the company has posted a patch.
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They didn't detect the problem before releasing it? That's incompetence.
They don't have a fix for the problem yet? That's gross incompetence.
Did you verify your cat was not actually a mutant alien bent on destroying the world throug the power of jello manipulation when you let them out this morning? If not, that's incompetence.
It's easy to toss around such comments without fear of retribution or consequences. I would give them a break- it's clear this took them by surprise and they did have a fix for it within a day. At least they acknowledged the issue and worked on a solution. I give them high marks for that alone.
A VM is supposed to be able to be started and stopped.
I give you high marks for idiocy.
I had friends and relatives that had their computers crash yesterday and their Internet wouldn't connect. After I rolled back some updates, they worked again.
You were saying?
On the plus side, he's stopped demanding that we put every service we own onto a VM these days. :)
By the by, the patch that a couple of folks are screaming about hasn't been tested yet. Any sysadmin with even the slightest sense of intelligence will test a patch thoroughly before applying it (sometimes the cure can be worse than the disease, you know?)
VMWare uses the licensing as a sort of money machine. You get x number of "CPUs" you can spread things around on (and host system RAM limits too, but I digress). Want to allocate more 'oomph? You pay for more licenses. Otherwise, it's pretty useless to have a licensing server hanging around.
(speakin' of which, wasn't VI 3's grace period --in case of license server outage-- supposed to kick in at some point?)
Either way, man, that's got to be embarrassing... Xen may be a PITA to use and incomplete, but at least it doesn't fall down and go 'splat' on you due to some stupid licensing issue.
Members of the VMWare community have applied the patch and are no longer experiencing problems. The core of the issue here is that this problem surfaced yesterday morning and a fix was released yesterday afternoon. Yet CNET decides to publish an irrelevant article that contains an excess of fear, uncertainty, and doubt.
Now personally, I like using VI and ESX - it's easy to manage, works quite well, and overall it does the job. I also understand that sometimes bad code slips through. OTOH, man... I can't go in and tell folks that VMWare is up to the task of mission-critical when explosions like this surface and spook the bosses. Now to be fair, I can't say the same about Xen either (only because it's still a bit too work-intensive and just a bit ******, for lack of a more precise term). To be doubly fair, I can't say the same for Viridian (a colleague in a sister department of ours finally gave up on that after any and all attempts at clustering with it failed miserably).
But therein lies the rub.
/P
I'm still of the mindset to keep them separated on different machines. Redundancy by having parallel systems for load balancing. Sure it costs more for the equipment, but you also aren't likely to take down multiple systems and online services because one machine dies on you.
Most VM suites have things like VMotion that keeps some semblance of HA present on a server. OTOH, the shift isn't always easy to catch, and it can still cause disruptions (and possibly data corruption).
My only real kick against VM's has more to do with allocation of resources. Even if you have 16 CPU's and 128GB of RAM on a box (which means licensing will cost you almost as much as if you built the things out separately), you still have bottlenecks (system buses, network, etc), and you still have overhead. It doesn't help that the powers-that-be want to cram in as many active VM's as possible on each physical machine.
- by roanry August 14, 2008 8:55 AM PDT
- I think c | net is owned by Microsoft some how.
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