IBM SVC

Stretched Cluster on IBM SVC (Part 2)

This is part 2 of the VMware Stretched Cluster on IBM SVC blogpost series.

PART 1     (intro, SVC cluster, I/O group, nodes)
PART 2    (split I/O group, deployment, quorum, config node)
PART 3     (HA, PDL, APD)


SVC split I/O group
It’s time to split our SVC nodes between failure domains (sites). While the SVC technically supports a maximum round-trip time (RTT) of 80 ms, Metro vMotion supports a RTT up to 10 ms (Enterprise Plus license).

You can split nodes in 2 ways; with or without the use of ISL’s (Inter-Switch Link). Both deployment methods are covered in detail in this document.


Deployment without ISL
Nodes are directly connected to the FC switches in both the local and remote site, without traversing an ISL. Passive WDM devices (red line) can be used to reduce the number of links. You’ll need to equip the nodes with “colored” long distance SFP’s.

SVC no ISLSource

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Convert Cisco 1000v from standalone to HA set-up

Recently, working on a customer environment, I discovered that their current Cisco 1000v implementation was not redundant. We quickly decided to convert the standalone setup to a HA-setup. This article shows how this can easily be done.

Cisco Logo

The current setup was a Cisco 1000v VSM (Virtual Supervisor Module) in L2 Control mode, but the same procedure can be applied to a Cisco 1000v in L3 Control mode.

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Veeam v8 update session

Last week I had the pleasure of attending an update session by Veeam regarding the new release of Veeam Backup & Replication, version 8. I heard some interesting stuff coming along with the next release of this fine piece of software.
veeam v8

The GA (General Availability) status for v8 is still scheduled for Q3 2014. I can imagine Veeam is planning a release party at VMware’s VMworld which will be held 24-28 of August. The San Francisco version, that is. We’ll have to wait and see if that is going to happen. For now, the only way to check out new features is to test the pre-beta version.

Note that that Veeam Backup Management Suite is to be rebranded as Veeam Data Center Availability Suite in version 8.

New features that caught our attention are of course the NetApp snapshot support, EMC Data Domain Boost support, encryption, explorers for AD /MSSQL and tons of other enhancements. Let’s have a closer look to some of the new features…

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IBM SVC

Stretched Cluster on IBM SVC (Part 1)

This is part 1 of the VMware Stretched Cluster on IBM SVC blogpost series.

PART 1     (intro, SVC cluster, I/O group, nodes)
PART 2     (split I/O group, deployment, quorum, config node)
PART 3     (HA, PDL, APD)

 

ibm-pc

Last year I was the primary person responsible for implementing a new storage environment based on IBM SVC and V7000 and building a VMware Stretched Cluster (a.k.a. vSphere Metro Storage Cluster) on top of that. I would like to share some of the experience I gathered, caveats I encountered and other points of interest. This is by no means a complete implementation guide (go read the Redbook 😉 ). I’ll discuss some of the implementation options as well as failure scenario’s, advanced settings and some other stuff I think is interesting. Based on the content, this will be a multi-part (probably 3) blog post.

Stretched Cluster versus Site Recovery Manager
If you’re unfamiliar with the concepts Stretched Cluster and SRM, I suggest you read the excellent whitepaper “Stretched Clusters and VMware vCenter Site Recovery Manager“, explaining which solution best suits your business needs. Another good resource is VMworld 2012 session INF-BCO2982, with the catchy title “Stretched Clusters and VMware vCenter Site Recovery Manager: How and When to Choose One, the Other, or Both“, however you’ll only be able to access this content if you’ve attended VMworld (or simply paid for a subscription).

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