The Virtualization Practice

Author Archive for Greg Schulz

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

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…

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. Or perhaps you have some HDDs as part of a virtual storage appliance (VSA), storage virtualization, virtual storage or storage hypervisor configuration. Even if you have gone all SSD for your primary storage, you might be using disk as a target for backups complimenting or replacing tape and clouds. On the other hand, maybe you have a mix of HDD and SSD for production, what are you doing with your test, development or lab systems, both at work and at home.

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 along with others, you might be calling those storage hypervisors as opposed to middleware, management tools, drivers, plug-in, shims, accelerators, or optimizers.

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.

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 servers, VDI or virtual desktop as well as storage for physical server environments, usage and configuration criteria. So which SSD options are best for which environments?

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