So I am in the middle of updating my best practices guide for vSphere on FlashArray and one of the topics I am looking into providing better guidance around is ESXi queue management. This breaks down to a few things:
- Array volume queue depth limit
- Datastore queue depth limit
- Virtual Machine vSCSI Adapter queue depth limit
- Virtual Disk queue depth limit
I have had more than a few questions lately about handling this–either just general queries or performance escalations. And generally from what I have found it comes down to fundamental understanding of how ESXi queuing works. And how the FlashArray plays with it. So I put a blog post together of a use case and walking through solving a performance problem. Explaining concepts along the way.
- This is a simple example to explain how queuing works in ESXi
- Mileage will vary depending on your workload and configuration
- This workload is targeted specifically to make relationships easier to understand
- PLEASE do not make changes in your environment at least until you read my conclusion at the end. And frankly not without direct guidance from VMware support.
I am sorry, this is a long one. But hopefully informative!
Continue reading Understanding VMware ESXi Queuing and the FlashArray
This is a blog I have been waiting a long time to write. The past year and a half of my work has heavily focused on improving and building our VMware vRealize integration at Pure Storage. Log Insight and Operations Manager integration already existed (analytics etc.), so the next logical step is actually provisioning (orchestration). So vRealize Orchestrator and Automation. The first step I took was using the built-in REST plugin in vRO to build a workflow package that customers could use to actually manage the FlashArray without much work on their own part inside of vRO.
I started to realize that a workflow package was not enough. Especially when it comes to vRA Anything-As-A-Service integration. A big part of what is missing from a workflow package is custom objects and inventory management. Something that a plugin can easily achieve. So, without further ado–please meet the FlashArray vRO plugin! Downloadable at the VMware Solution Exchange and fully certified by VMware and Pure Storage:
FlashArray vRO Download
My vRO plugin white paper Continue reading Introducing the FlashArray Plugin for vRealize Orchestrator v1.0
This is part 7 of this 8 part series. Questions around managing VMFS snapshots have been cropping up a lot lately and I realized I didn’t have a lot of specific Pure Storage and VMware resignaturing information out there. Especially around scripting all of this and the various options to do this. So I put a long series out here about how to do all of this.
The series being:
- Mounting an unresolved VMFS
- Why not force mount?
- Why might a VMFS resignature operation fail?
- How to correlate a VMFS and a FlashArray volume
- How to snapshot a VMFS on the FlashArray
- How to mount a VMFS FlashArray snapshot
- Restoring a single VM from a FlashArray snapshot
- Restoring a single virtual disk from a FlashArray snapshot
Continue reading VMFS Snapshots and the FlashArray Part VII: Restoring a VM
There are a variety of methods of managing VMware objects (VMFS volumes, VMs, VMDKs and RDMs) and the underlying snapshots to recovery or clone them. But often I get asked if I have a PowerShell (PowerCLI) script to do one or all of them. I have a bunch on my GitHub, but I decided a week or so ago to put something a bit more robust together. At first I was making it a standard interactive script, but it morphed into a GUI, using combo-boxes etc:
Continue reading PowerShell GUI VMware and FlashArray Snapshot Management Tool