Gathering core dump files when encryption is enabled

One of the key new features of vSphere 6.5 is vSphere VM Encryption, a mechanism to encrypt all virtual machine files. This mechanism not only encrypts the VMDK, but also the metadata files and core dumps associated with a VM. Now, there would not be much point in sending an encrypted core dump file to VMware for analysis, so a mechanism has been put in place to allow these files to be recrypted using a password before sending them to VMware. The password can then be shared with VMware to allow us to examine the core dumps.  This is how…

Extending an ESXi diagnostic core dump partition on a vSAN 6.5 node

This is something very interesting which gained support with the release of vSAN 6.5. It will be of interest to those customers who boot their ESXi hosts from USB/SD devices, and also have vSAN configured. One long-standing restriction with this configuration was the inability to boot from USB/SD when the amount of memory in the host is over 512GB. This is because we could not guarantee that the memory dump would fit in the pre-sized core dump partition. Well, now we have the ability to resize the core dump partition, even when it resides on a USB/SD device. The guidance…

Virtually Speaking Podcast Episode #34 – Core Storage

Many readers will be aware that John Nicholson and Pete Fletcha of the VMware Storage and Availability Tech Marketing team run a weekly podcast show called  Virtually Speaking. This week I am back as a guest on their show, alongside Cody Hosterman of Pure Storage. We discuss a lot of the new core storage features in vSphere 6.5, which were detailed in a co-produced white paper that we recently created. You can read about how to get the white paper here. You can listen to the podcast through the player below. I hope you enjoy it.

Determining if an array supports automated unmap in vSphere 6.5

Many of you will be aware of the new core storage features that were introduced in vSphere 6.5. If not, you can learn about them in this recently published white paper. Without doubt, the feature that has created the most amount of interest is automated unmap (finally, I hear you say!). Now a few readers have asked about the following comment in the automated unmap section. Automatic UNMAP is not supported on arrays with UNMAP granularity greater than 1MB. Auto UNMAP feature support is footnoted in the VMware Hardware Compatibility Guide (HCL). So where do you find this info in…

vSphere 6.5 Core Storage White Paper Now Available

I’m delighted to announce the availability of a new vSphere 6.5 core storage white paper. The paper covers new features such as VMFS-6 enhancements, policy driven Storage I/O Control, policy driven VM Encryption, NFS and iSCSI improvements and of course new limit increases in vSphere 6.5. There are too many VMware folks to thank for putting this paper together, but you’ll find them all listed in the acknowledgements section. I do want to mention one person however; a very special thanks to Cody Hosterman of Pure Storage who spent a lot of time testing many of these new features, and…

Photon Controller v1.1 and vSAN interoperability

Many of you will have seen the recent announcement for Photon Controller version 1.1. For me, the interesting part of this announcement is the support for vSAN as a storage platform with Photon Controller v1.1. I should think that the first question that those of you are familiar with both vSAN and Photon Controller will ask is “how do I configure vSAN for Photon Controller when there is no vCenter server in the mix?”. This is a very good question, and one which I will highlight in this blog post. There are also a few line items in the release…

PowerCLI 6.5 Release 1 and vSAN

The first email I saw this morning in my inbox was from my good pal, Alan Renouf. Alan is our product line manager for APIs, SDKs, CLIs and Automation Frameworks (congrats on the promotion Alan). Anyway, Alan was announcing the General Availability of VMware vSphere PowerCLI 6.5 Release 1. There are a whole bunch of improvements in this release, and much kudos must go to the PowerCLI team. However from a vSAN perspective, things look really cool. [Update] This version of PowerCLI also works with vSAN 6.2 and 6.0, so there is no need for customers to upgrade to vSAN…