I’ve been doing a bit of work over the past number of weeks on the adapters for vCenter Operations (vC OPs) with my old pal Paudie. We are working on vCenter Operations 5.8 and using a vSphere 5.5U1 environment. Since we have a Brocade Fibre Channel switch and an EMC VNX array in our lab, I wanted to get the Management Pack for Storage Devices (MPSD) and the Brocade SAN Analytics Management Pack deployed, and see what information we could glean from those extension packs. When we completed the configuration, we were able to go into the vC OPs customs view and see details like the following Brocade – Health Overview and Storage Components Heatmap:
Caution: We spent a lot of time trying to figure out why the MPSD adapter would not connect to the CIMOM service on Brocade’s Network Advisor. This boiled down to networking/DNS configuration issues. The MPSD release notes for vC OPs describe the issue. As they say, I should have RTFM. Anyhow, here are the steps we went through to get this setup going. I’m afraid it is rather long, but hopefully you will find the information in here useful.
Pure Storage are all over the news at the moment. They just secured another round of funding (225 million to be precise), and are now valued at over 3 billion. You can read more about that here. However, even before this announcement, I had already arranged to have a catch up chat with Pure’s primary evangelist (and a good pal of mine), Vaughn Stewart. I was surprised to see that it had been 18 months since I last did a piece on Pure so I really did want to see what changes they had made in the meantime as there were a few vSphere interoperability pieces still to be completed when we last spoke.
There are many occasions where the information displayed in the vSphere client is not sufficient to display all relevant information about a particular storage device, or indeed to troubleshoot problems related to a storage device. The purpose of this post is to explain some of the most often used ESXCLI commands that I use when trying to determine storage device information, and to troubleshoot a particular device.
Last week I had the opportunity to catch up with Mike Koponen and Dean Steadman of Fusion-io. I had met with Mike and Dean at VMworld 2013, and spoke to them about the Fusion-io acquisition of NexGen storage earlier last year, and what plans Fusion-io had for this acquisition. Well, the result is ioControl Hybrid Storage, and we discussed some of the architecture of ioControl as well as a number of vSphere integration points.
A short and sweet post today. In vSphere 5.0, VMware introduced support for 16Gb FC HBAs. However these HBAs had to be throttled down to work at 8Gb. In 5.1, VMware supported these 16Gb HBAs running at 16Gb. However, an important point to note is that there was no support for full end-to-end 16Gb connectivity from host to array in vSphere 5.1. To get full bandwidth, you possible had to configure a number of 8Gb connections from the switch to the storage array.
With the release of vSphere 5.5, VMware now supports 16Gb E2E (end-to-end) Fibre Channel.
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All Flash Arrays continue to make the news. Whether it is EMC’s XtremIO launch or Violin Memory’s current market woes, there is no doubt that AFAs continue to generate a lot of interest. Those of you interested in flash storage will not need an introduction to SolidFire. These guys were founded by Dave Wright (ex-RackSpace) and have been around since 2009. I have been trying to catch up with SolidFire for sometime as I’d heard their pitch around Quality of Service on a per volume basis and wanted to learn more, especially how it integrated with vSphere features. Recently I caught up with Dave Cahill and Adam Carter of SolidFire to have a chat about SolidFire in general and what the VMware integration points are.
Just thought I’d bring to your attention something that has been doing the rounds here at VMware recently, and will be applicable to those of you using QLogic HBAs with ESXi 5.x. The following are the device queue depths you will find when using QLogic HBAs for SAN connectivity:
ESXi 4.1 U2 – 32
ESXi 5.0 GA – 64
ESXi 5.0 U1 – 64
ESXi 5.1 GA – 64
The higher depth of 64 has been this way since 24 Aug 2011 (the 5.0 GA release). The issue is that this has not been documented anywhere. For the majority of users, this is not an area of concern and is probably a benefit. But there are some concerns.