And I've been told MAC has fewer bugs than Windows...http://www.networkworld.com/news/2010/111110-apple-smashes-patch-record-with.html?source=nww_rss
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And I've been told MAC has fewer bugs than Windows...http://www.networkworld.com/news/2010/111110-apple-smashes-patch-record-with.html?source=nww_rss
Posted on 11/11/2010 at 11:00 PM in General | Permalink | Comments (0)
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Apple's xServ is dead. This like Apple's failed xRAID should really be no suprise.
It's one thing for Apple to convince the average, gullible, end-user that they have an OS that goes beyond just a pretty face. It's quite a more difficult challenge to convince highly technical people in the Datacenter, that OS X is ready for scalable, high-performance computing.
Posted on 11/08/2010 at 10:58 PM in General | Permalink | Comments (0)
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One tasks that frequently comes up in IT is adding more disk space to a server. In a Windows VM environment, for the most part, this is very easy. If your disks are Basic as opposed to Dynamic, simply add more space to the VMDK file via VMware and then use diskpart to extend the partition. If your disks are dynamic, create a new virtual disk in VMware and in Windows span onto this new disk.
Unfortunately, neither of these two scenarios work if you are trying to add space to the C: drive. Diskpart will not extend a partition that contains the boot volume, a.k.a. C:. If your C: drive is dynaimic, you cannot span the C: drive with multiple disks.
One solution assuming you are using Basic disks is to
There are a couple of problems with this method
There is a better way to do the C: drive expansion that is a bit faster and sidesteps the problems listed above. Parted Magic is the secret sauce. Pmagic is an opensource, Linux distribution that includes many easy to use disk based utilities including gparted, a disk partition utility.
Requirements:
Steps:
Posted on 11/08/2010 at 10:10 PM in Microsoft, VMWare | Permalink | Comments (0)
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VMware recently released a new version of their Performance Best Practices for VMware vSphere 4.1. If you have never read this technical paper before, I strongly recommend that you take the time to read it. It gives a great overview of the major technical features that effect performance in a VMware environment. The paper can be found here.
Posted on 11/04/2010 at 10:45 PM in VMWare | Permalink | Comments (0)
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This post is a continuation in a series of posts on comparing various operating systems as network attached storage solutions for VMDK files in a VMWare environment. Please read Part 1 in the series.
Well, the wonderful performance I saw with Windows 2008 was short lived. Using Openfiler I was able to push roughly 3-4x the number of IOPS. These results were pervasive across different types of workloads, e.g. Exchange, SQL, Webserver, etc. I am now testing with RedHat Enterpise Linux and the results for certain tests are even better than Openfiler.
There have been delays with the testing because my NAS server kept randomly failing. After running 2-3 10 minute test runs using IOMeter the virtual disk in my VM would suddenly just stop responding. The problem sometimes occurred mid-test. I tried several diagnositics steps but the only thing that got the virtual disk working again was rebooting the NAS server. The problem was occurring both on RedHat and Nexenta. Openfiler and Windows2008 did not have the same problem.
I tracked the cause to this bug in the HP array firmware. After updating the firmware, the problem never reoccurred. Unfortunately now that I've changed the underlining hardware configuration, I feel that the results from OpenFiler and Windows2008 are now suspect. I will have to redo those tests.
Posted on 11/03/2010 at 07:32 PM in General, VMWare | Permalink | Comments (1)
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