Lumenate is a technical consulting firm focused on enabling the virtualized enterprise. With disciplines in Storage, Security and Networking, Lumenate designs and implements customized, integrated solutions which enable our customers to transition to a converged infrastructure and enjoy the benefits of virtualization with increased security and scalability. Not just storage. Storage meat. Our goal – design and deliver the optimal customer experience.
Tuesday, September 4, 2012
Array sizing in practice
As I mentioned in the previous post (here) array sizing has become more complex with the advent of tiering and deduplication. It's not just a function of new technology - it's also that storage is handled differently from an architectural standpoint, so even with good performance data there are still inferences that have to be made.
Wednesday, August 29, 2012
Reflections on VMworld 2012
Learning to love uncertainty
Historically storage administration was a relatively straightforward endeavor. You could empirically measure how much capacity you needed, project anticipated growth, and plan accordingly. Likewise you could measure an application's existing IO requirements, extrapolate based on planned growth, and feel comfortable that you probably got the sizing right. Sure sometimes it felt more like art than science, but at the end of the day you could point to an Excel spreadsheet and some fudge factor you used to do your math.
Saturday, August 18, 2012
Decoding WWIDs (or how to tell what's what)
Saturday, August 11, 2012
Replicating a multipathed Linux boot device
Tuesday, June 12, 2012
Marcel the Constitutional Sales Engineer
Recently a storage vendor boasted that they could provide "1.08PB of raw capacity." Is it really 1PB?! I know most (if not all) of us understand what’s going on; this post is mainly to reinforce the “reality delta” that exists between what a disk vendor sells and what the computer actually uses. I wrote it mainly because this vendor’s claim struck me as so brazen.
Thursday, January 5, 2012
HDS Hitachi Content Platform HCP
Back in 2007, HDS purchased a small software company named Archivas. Archivas was formed by some ex-EMC folks. They set out to create a product that was better than EMC's Centerra archive platform. The product became known as the HDS HCAP platform after the HDS acquisition. It was specifically designed to be an archive platform for fixed content. It answered the need to comply with recent regulations requiring certain industries to retain immutable copies of their data. The HCAP platform provided client access via standard network attached file system APIs such as CIFS and NFS.
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