Tag Archives: SFD

55: GreyBeards storage and system yearend review with Ray & Howard

In this episode, the Greybeards discuss the year in systems and storage. This year we kick off the discussion with a long running IT trend which has taken off over the last couple of years. That is, recently the industry has taken to buying pre-built appliances rather than building them from the ground up.

We can see this in all the hyper-converged solutions available  today but it goes even deeper than that. It seems to have started with the trend in organizations to get by with less man-women power.

This led to a desire to purchase pre-buit software applications and now, appliances rather than build from parts. It just takes to long to build and lead architects have better things to do with their time than checking compatibility lists, testing and verifying that hardware works properly with software. The pre-built appliances are good enough and doing it yourself doesn’t really provide that much of an advantage over the pre-built solutions.

Next, we see the coming systems using NVMe over Fabric storage systems as sort of a countertrend to the previous one. Here we see some customers paying well for special purpose hardware with blazing speed that takes time and effort to get working right, but the advantages are significant. Both Howard and I were at the Excelero SFD12 event and it blew us away. Howard also attended the E8 Storage SFD14 event which was another example along a similar vein.

Finally, the last trend we discussed was the rise of 3D TLC and the absence of 3DX and other storage class memory (SCM) technologies to make a dent in the marketplace. 3D TLC NAND is coming out of just about every fab these days and resulting in huge (but costly) SSDs, in the multi-TB range.  Combine these with NVMe interfaces and you have msec access to almost a PB of storage without breaking a sweat.

The missing 3DX SCM tsunami some of us predicted is mainly due to the difficulties in bringing new fab technologies to market. We saw some of this in the stumbling with 3D NAND but the transition to 3DX and other SCM technologies is a much bigger change to new processes and technology. We all believe it will get there someday but for the moment, the industry just needs to wait until the fabs get their yields up.

The podcast runs over 44 minutes. Howard and I could talk for hours on what’s happening in IT today. Listen to the podcast to learn more.

Howard Marks is the Founder and Chief Scientist of howardmarksDeepStorage, a prominent blogger at Deep Storage Blog and can be found on twitter @DeepStorageNet.

 

Ray Lucchesi is the President and Founder of Silverton Consulting, a prominent blogger at RayOnStorage.com, and can be found on twitter @RayLucchesi.

GreyBeards talk VMware agentless backup with Chris Wahl, Tech Evangelist, Rubrik

In this edition we discuss Rubrik’s converged data backup with Chris Wahl (@ChrisWahl), Tech Evangelist for Rubrik.  You may recall Chris as a blogger on a number of Tech, Virtualization and Storage Field Days (VFD2, TFD extra at VMworld2014, SFD4, etc.) which is where  I met him. Chris is one of the bloggers that complains about me pounding on my laptop keyboard so loud at SFDs ;/

Chris had only been with Rubrik about 3 weeks when we  talked with him but both Howard and I thought it was time to find out what Rubrik was up to.

Rubrik provides an agentless, scale-out backup appliance for VMware vSphere clusters. It uses VADP to tap into VM data stores and obtain changed blocks for backup data. Rubrik deduplicates and compresses VM backup data and customers define a SLA  policy at the VM, folder or vSphere cluster level to determine when to backup VMs.

Rubrik supports cloud storage (any S3 or SWIFT provider) for long term archive storage of VM backups. With Rubrik, customers can search the backup catalog (for standard VM, NFS file, and backup metadata) that spans the Rubrik cluster data as well as S3/SWIFT storage backups.  Moreover, Rubrik can generate compliance reports to indicate how well your Rubrik-vSphere backup environment has met requested backup SLAs, over time.

Aside from the standard recovery facilities, Rubrik offers some interesting recovery options such as “instant restore” which pauses a VM and reconfigures its storage to come up on the Rubrik cluster (as a set of NFS VMDKs). Another option is “instant mount”, which runs a completely separate copy of a VM using Rubrik storage as its primary storage. In this case the VM’s NIC is disconnected so that the VM gets an error when it fires up, which has to be resolved to run the VM.

Rubrik hardware comes in a 2U package with 4 nodes. Each node has one flash SSD and 3 4 or 8TB SATA disks for customer data. The SSD is used for ingest caching and metadata. Data is triple mirrored across SATA disks in different nodes.

The latest release of Rubrik supports (compressed/deduped) data replication to other Rubrik clusters located up to asynchronous distances away.

This months edition runs just under 42 minutes and gets somewhat technical in places. We had fun with Chris on our call and hope you enjoy the podcast.

Chris Wahl, Tech Evangelist, Rubrik

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Chris Wahl, author of the award winning Wahl Network blog and Technical Evangelist at Rubrik, focuses on creating content that revolves around virtualization, automation, infrastructure, and evangelizing products and services that benefit the technology community.

In addition to co-authoring “Networking for VMware Administrators” for VMware Press, he has published hundreds of articles and was voted the “Favorite Independent Blogger” by vSphere-Land three years in a row (2013 – 2015).

Chris also travels globally to speak at industry events, provide subject matter expertise, and offer perspectives to startups and investors as a technical adviser.