October 2009

Life with Qlogic’s 5802V: Part 1

by dave on October 21, 2009


If you follow me on Twitter at all, you’ll know that I’m a big fan of Qlogic.  I appreciate the functional simplicity of what Qlogic designs encompass as well as the “get business done” attitude that they bring to their switches, HBAs, NICs, and CNAs.  Imagine my happiness, then, when I got ahold of one of their latest “edge” fibre channel switches, the SANbox 5802V.  The SANbox 5802V follows the typical edge-switch formula: 20 SFP ports for either 4Gb/s SFPs or 8Gb/s SFP+, 4 stacking ports that default at 10Gb/s Fibre Channel connection and can be upgraded to 20Gb/s FC when additional bandwidth is needed, a serial and IP-based management port setup, and dual redundant power supplies (the 5802V ships with 2 PSUs; the 5800V model ships with only 1).

SANbox 5802V

SANbox 5802V

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Why policy is the future of storage, part 2

by dave on October 5, 2009


In my first post on policy, i tried to show what policy’s influence would be like from a top-level standpoint. We see that policy can start from a localized array standpoint and “fix” performancing or hotspot issues based on key LUN migration technologies (like EMC‘s FAST promises to do; Compellent already does this) while allowing business processes to continue “unharmed.” To a certain extent, the LUN migrations of yesteryear were an act of policy, if only to show the level of manual involvement required in order to manage a SAN. What I’d like to look at today is the concept of extending policy BEYOND a localized resource or array and looking at its impact in a global storage environment.

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