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Optimisation tools

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Large disk arrays can suffer from an imbalance of data across their RAID/parity groups. This is inevitable even if you plan your LUN allocation as data profiles change over time and storage is allocated and de-allocated.

So, tools are available. Think of EMC Optimizer, HDS Cruise Control and Volume Migrator.

I’ve put a poll up on the blog to see what people think – I have my own views and I’ll save them until after the vote closes next week.

About Chris M Evans

Chris M Evans has worked in the technology industry since 1987, starting as a systems programmer on the IBM mainframe platform, while retaining an interest in storage. After working abroad, he co-founded an Internet-based music distribution company during the .com era, returning to consultancy in the new millennium. In 2009 Chris co-founded Langton Blue Ltd (www.langtonblue.com), a boutique consultancy firm focused on delivering business benefit through efficient technology deployments. Chris writes a popular blog at http://blog.architecting.it, attends many conferences and invitation-only events and can be found providing regular industry contributions through Twitter (@chrismevans) and other social media outlets.
  • Nigel

    Chris,

    I personally use Cruise Control/Volume Migrator regularly and have tought for a long time that its a great tool. Has its limitations of course, one of those being that it cn only work at the LUN level.

    I did laugh a while ago though when snig compared it with dynamic sparing when you have a failed psindle in a RAID set. No vendor charges you for dynamic sparing which is very similar to Cruise Control.

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