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Greg Schulz
Greg SchulzGreg Schulz is Founder and Sr. Analyst of independent IT advisory and consultancy firm Server and StorageIO (StorageIO). He has worked in IT at an electrical utility, financial services and transportation firms in roles ranging from business applications development to systems management and architecture planning. Greg has also worked for various vendors in addition to an analyst firm before forming StorageIO. Mr. Schulz is author of several books (Cloud and Virtual Data Storage Networking – CRC Press, The Green and Virtual Data Center – CRC Press, Resilient Storage Networks: Designing Flexible Scalable Data Infrastructures – Elsevier), active with social media with his engaging approach and a top ranked blogger. He has a degree in computer science and master’s degree in software engineering. Learn more at www.storageio.com

EMC ViPR V1.1 and SRM V3.0

March 27, 2014
By
StorageNetworking

Server and StorageIO, @storageio The EMC2 Advanced Software Division (ASD) recently announced (more here and here) enhancements to its ViPR (v1.1) software-defined storage management solution, as well as a new version of its Storage Resource Management (SRM) product (v3.0). First, keep in mind that SRM, in the traditional server and storage world, means systems or…

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When and Where to Use NAND Flash SSD for Virtual Servers

August 30, 2013
By
StorageNetworking

Keeping in mind that the best server and storage IO is the one that you do not have to do, then second best is that which has the least impact combined with best benefit to an application. This is where SSD, including DRAM- and NAND-flash-based solutions, comes into the conversation for storage performance optimization.

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Hard Disk Drives (HDD) for virtual environments (Part IV) from power to warranties

March 18, 2013
By
StorageNetworking

Let us pick up where we left off in part III in our look beyond the covers to help answer the question of which is the best HDD to use.

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Hard Disk Drives (HDD) for virtual environments (Part III) from form factor to power

March 12, 2013
By
StorageNetworking

In part II of this series we covered some of the differences between various Hard Disk Drive (HDD) including looking beyond the covers at availability, cache and cost. Let us pick up where we left off on our look beyond the covers to help answer the question of which is the best HDD to use.

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Hard Disk Drives (HDD) for virtual environments (Part II) how drives differ

March 6, 2013
By
StorageNetworking

In part I of this series we looked at basic Hard Disk Drive (HDD) characteristics and wrapped up with the question of what is the best type of HDD to use?

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Hard Disk Drives (HDD) for virtual environments (Part I)

January 30, 2013
By
StorageNetworking

Unless you are one of the few who have gone all solid-state devices (SSDs) for your virtual environment, hard disk drives (HHDs) still have a role. That role might be for primary storage of your VMs and/or their data, or as a destination target for backups, snapshots, archiving or as a work and scratch area.…

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Are you using or considering implementation of a storage hypervisor?

January 7, 2013
By
StorageNetworking

Depending upon what your or somebody else’s definition of a storage hypervisor is, you may or may not be using one or realize it. If your view of a storage hypervisor is a storage IO optimization technology to address performance and other issues with virtual machines (VMs) and their hypervisors, such as Virsto or ScaleIO…

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IO IO it is off to Storage and IO metrics we go

March 29, 2012
By
StorageNetworking

There are many different types of metrics pertaining to storage and IO that can be grouped into Performance, Availability, Capacity, Economics and Energy (PACE). Every application or workload has some characteristics attribute of Performance, Availability, Capacity, Economics and Energy that can be further broken down into metrics that are more detailed.

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SSD options for Virtual (and Physical) Environments Part IV: What type of SSD is best for your needs.

March 20, 2012
By
SSD options for Virtual (and Physical) Environments Part IV: What type of SSD is best for your needs.

Let us continue to look at what SSD to use for different environments and build off the other parts of this series of articles. Part 1 of this series laid out the basics of nand flash Solid State Devices (SSD) with part II discussing endurance and performance. Part III looked at SSD options for virtual…

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