Quick post here. As some of you may or may not know, the SRDF and VMware Site Recovery Manager techbook that I have “owned” for four years or so is now out of my hands since I moved onto a different role within EMC. Drew Tonnesen (drewtonnesen.wordpress.com) from Symmetrix Engineering is now the author of the book. Anyways the techbook has been updated to include the latest changes included in the SRDF SRA version 5.5.1 which we released a few weeks ago.
I just posted about using the EMC-provided Python script to install and configure ScaleIO on Windows. Using this script makes these steps much easier, especially in very large environments (you can find that post here). One of the next logical questions is concerning firewall requirements and this process. To achieve this automation, the script is going all over the place connecting to servers, copying files, starting services and issuing configuration commands. Therefore it is hitting a variety of network ports on the target hosts. So let’s talk about what exactly those ports are.
In previous posts I have discussed installing and configuring EMC ScaleIO on Windows using manual methods. In VMware or pure Linux environments I have used the provided Python script/wizard to help automate the installation and configuration of ScaleIO. Mostly due to the fact that using this script is much simpler and less-error prone than using the manual methods. And in my opinion, at least, should be the preferred method of installation when possible.
Two posts in two days. Phew! So much to talk about, but this is a quick one. In my previous post I wrote about installing ScaleIO on Windows hosts via a manual/user-controlled process using the CLI and running the MSI install file on each server. In larger environments this may not be practical where an automated deployment solution is required. Furthermore, it is invariably necessary to also deploy the software in a “silent” unattended mode so that end-users do not need to interact with the installer. Luckily this is a pretty simple process in Windows environments using the MSI ScaleIO installer.
A few weeks ago the latest version of ScaleIO was released (version 1.21) and one of the major new features of it was official Windows Server support. ScaleIO 1.21 supports the following flavors of Windows:
- Windows Server 2008 R2
- Windows Server 2012
- Windows Server 2012 R2
Quick post here. On February 10th, EMC released a service release for VMAX arrays which is code level 5876.268.174. You can find the release notes here:
As I wrote about in a recent post the 5.1 version of the SRDF Storage Replication Adapter was updated in a service release. Similar fixes and a few other changes have been also added to the SRDF SRA version 5.5. If you are running VMware Site Recovery Manager version 5.1 or 5.5 this is the SRA you should be using. SRM 5.0 users can only use the 5.1 SRA (while the 5.1 SRA supports SRM 5.0 and 5.1 I recommend SRM 5.1 users use the 5.5 SRA).
So what’s new in the latest SR for SRDF SRA (188.8.131.52)?
A new version of the EMC Virtual Storage Integrator 5.6.3 has been released for the following VSI features:
- AppSync–Allows you to manage service plans and datastore copies (mount, unmount, copy, restore etc.)
- Unified Storage Management–Provision storage from VPLEX, VMAX, VNX, VNXe from the vSphere Client
Now obviously this is a minor release and doesn’t include revolutionary changes but for users of these VSI features is worth the upgrade.
Let’s talk about snapshots and ScaleIO.
First how does snapshot-ing work with ScaleIO? ScaleIO offers the ability to snapshot a single volume at a time or cloning multiple volumes at once. Importantly, ScaleIO, when snapshot-ing multiple volumes at once, those copies will be consistent with each other at the time of creation. A consistency group is created when a snapshot command includes multiple volumes–this is helpful for situations where multiple VMs on multiple volumes need consistent copies but the source applications may not be able to be quiesced at the time. ScaleIO does not though prevent you from deleting one snapshot in a consistency group–you may manage those volumes after the fact however you wish.
The second generation of EMC Elect has been announced! A great mix of customers, partners and EMC employees were accepted into the program this year–congratulations to all that were! I’m thrilled to count myself as one of them.