Geralyn's Cloud Blog

I'm on the CloudStack community team at Citrix. I'm a developer by trade and an evangelist at heart.

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Attending Citrix Synergy in Barcelona October 17-19? Make sure to check out the CloudPlatform Community Pavilion area.  All partners participating in the Pavilion have solutions that integrate with Citrix CloudPlatform, powered by Apache CloudStack.  Partners participating in the Pavilion are: Amysta, Basho, Cisco, Cloudian, Cloudsoft, Tier3, Trend Micro, and UShareSoft.

New to Synergy Barcelona is a theater-style seating area next to the CloudPlatform Pavilion. Cloud ecosystem partners will be giving 10 minute presentations throughout the week during Expo Hall hours. See the theater session schedule at the bottom of this post.

Two of the CloudPlatform Pavilion partners, Cloudsoft and USharesoft, also made it to the finalist list for Citrix Ready Best of Synergy 2012 in the Cloud category. The Best of Synergy awards recognize the most innovative solutions based on Citrix technologies, supporting multiple product ecosystem categories. A panel of judges, consisting of executives & product leaders from Citrix selected the category finalists from the nominations.  Make sure to stop by the Cloudsoft and UShareSoft pods in the CloudPlatform Community Pavilion and congratulate these partners on their achievement.

Theater Presentation Schedule (alphabetical by partner, all times are local to Barcelona):

  • Amysta, Thursday 12:30 PM, “Amysta: Usage Metering and Cost Management for Citrix CloudPlatform”, Pierre Vacherand, CEO, Amysta
  • Cisco, Tuesday 8:00 PM and Wednesday 2:00 PM, “Cisco Unified Computing System and CloudPlatform—Bringing Cloud and Infrastructure Closer Together”, Roger Barlow, Product Manager, Cisco
  • Cloudian, Wednesday: 10:00 AM and Thursday 10:00 AM, “Cloudian S3 Object Storage Platform: The Bedrock of Cloud Systems”, Giorgio Propersi, General Manager, Americas and EMEA, Cloudian
  • Cloudsoft, Wednesday 3:30 PM and Thursday 3:00  PM, “Multi-cloud Application Management”, Duncan Johnston-Watt, CEO & Founder, Cloudsoft
  • Tier 3, Wednesday 2:30 PM and Thursday 1:30 PM, “Evolving to the Next-Gen Enterprise Cloud”, Robert Miggins, SVP, PEER1 Hosting
  • Trend Micro, Wednesday 3:00 PM and Thursday 2:30 PM “Data Protection in the Cloud”, Bilal Baig, Senior Security Architect, Trend Micro
  • UShareSoft,  Wednesday 11:00 AM (Alban Richard) and Thursday 2:00 PM (James Weir),
    “Bridging the Gap Between Virtualization and Cloud”, Alban Richard, CEO, UShareSoft, “Software Modeling and Onboarding to Cloud”, James Weir, CTO and Co-Founder, UShareSoft

For detailed session abstracts and speaker biographies, please see my blog post on the Citrix site:

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MongoDB as a Service on CloudStack

Posted by on in Open Source

ScaleGrid, Inc (, a Seattle-based startup, is announcing this week the public availability of MongoDirector, an end-to-end lifecycle management solution for MongoDB. MongoDirector provides a "single pane of glass" to manage MongoDB deployments allowing for simplified and automated MongoDB lifecycle management on both VMware vCenter and CloudStack.

I caught up last week with Dharshan Rangegowda and Ankit Bhatia, co-founders of ScaleGrid, in hopes of learning more about these guys and their ambitious plans around database-as-a-service. Dharshan and Ankit are complete opposites in many ways. Dharshan is an outdoorsy-type who enjoys hiking the Olympic Peninsula, while Ankit prefers a weather-neutral environment where he can follow his favorite financial markets and college basketball. What prompted this unlikely pair of software developers, who used to work on a proprietary cloud product for a very large Redmond-based software company, to build something based on open source technologies?

“We saw problems all around us with IT departments trying to get a grip on the sprawl of database deployments within their own organizations,” Dharshan explained. “Everybody wants high availability and scalability on the data tier…but to get the configurations correct requires time and expertise. We started thinking…what if we built a product that took the guess work out of HA configurations, disaster recovery configurations, and all of the other problems associated with scale up/scale down at the data layer”.

Dharshan and Ankit started with SQL Server…a known entity for them. But the NoSQL database solution, MongoDB, kept coming up in conversations over and over again. “We were at a local Seattle big data series earlier this year. Most of the attendees were from startups that were using public or private cloud solutions. When we saw the level of interest around MongoDB, we knew we needed a solution, ” said Dharshan.

MongoDB ( is an open-source, high performance, document-oriented NoSQL database solution.  It stores objects or documents in JSON-like data structures with dynamic schema (a format called BSON) and also offers a rich ad hoc query language based on BSON documents.   MongoDB has full index support, dynamic sharding, and enterprise-like features such as replication, failover, and journaling.  MongoDB’s performance characteristics, ability to scale out, and rich programming language support across multiple platforms make it a favorite with large enterprises and small startups alike. The ScaleGrid MongoDirector product supports provisioning, cloning, monitoring and backup and restore of standalone or clustered highly available and disaster recovery ready MongoDB deployments, allowing IT departments to reduce operational costs and cut down on long lead times for development systems.

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Virtual Build a Cloud Day July 10th

Posted by on in Events

On July 10th we’ll be holding a one-day, online seminar featuring top open source strategists and technologists speaking about what you can use to build, manage, and deploy an application in an open source cloud computing environment.  Here’s how the day is shaping up…

We’ll start with the basics—an introduction to open source cloud computing by  Mark Hinkle, Senior Director of the Cloud Computing Community at Citrix--and then dive into the fundamentals with sessions on CloudStack and the Xen  hypervisor.  

Ross Turk, VP of Community at Inktank will join us to discuss Ceph—an open source object storage, block storage and network file system that provides high performance, reliability and scalability. Diane Mueller will explain PaaS (Platform as a Service), and introduce Stackato.  Stackato is a commercially supported application platform (based  on the Cloud Foundry open source project) that lets you create a private PaaS.  

We’ll switch gears a bit and Sebastian Stadil, CEO of Scalr, will explain to us how to take the repetition out of managing our servers’ lifecycles by using Scalr, an open source cloud management solution. Hortonworks will give us a DevOps style talk on Apache Hadoop—what it is and how we can harness its power to process, store, and analyze massive amounts of unstructured data.

We’ll finish out the day with a case study from David Chamard that demonstrates how was able to leverage the best of  two open source cloud worlds by integrating CloudStack with OpenStack Swift via custom authentication code.

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I had the pleasure last week of working with a Bothell-based hardware vendor, Silicon Mechanics, and a company called Private Cloud Leasing to get CloudStack up and running on what is literally a datacenter on wheels (the small unit in the picture).


We took this Cloud-on-Wheels to the LinuxFest Northwest show at Bellingham Technical College, and put it on the expo hall floor.

On Sunday, we unplugged it and rolled it out of the expo hall, across the plaza, and up to one of the classrooms for the CloudStack session. The unit itself is self-propelled, runs on UPS,  and you can basically move it around any building that is wheelchair accessible.

The Cloud-on-Wheels generated A LOT OF ATTENTION (it’s very blue) and thus was a great draw to the booth and session.  As we rolled the unit through the hallways of the college, it was a bit like the Pied Piper…we had a group of folks following us, curious to see what we were doing with this thing. 

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Citrix supports the open source community via developer support and evangeslism. We have a number of developers and evangelists that participate actively in the open source community in Apache Cloudstack, OpenDaylight, Xen Project and XenServer. We also conduct educational activities via the Build A Cloud events held all over the world.