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Stephen Foskett, Pack Rat

Understanding the accumulation of data

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Add a Mirror to an Existing ZFS Drive

December 11, 2017 By Stephen 3 Comments

One of my criticisms of ZFS is that it's not flexible: Once you set up a dataset, you're pretty much stuck with it. But this isn't entirely true: You can add a mirror or stripe to an existing pool without destroying the data. Since this is quite a common operation, I decided to write it up for posterity. A Very Simple ZFS Pool Let's say you built the world's most basic ZFS … [Read more...] about Add a Mirror to an Existing ZFS Drive

VMware VAAI Storage Array Support in Plain English

February 8, 2011 By Stephen 18 Comments

The most exciting enhancements in VMware vSphere 4.1 is the addition of vStorage API for Array Integration (VAAI). This new API allows VMware ESX to offload storage processing functions to capable storage arrays, reducing the workload on the server hardware in introducing new and exciting possibilities for performance and efficiency. VAAI in ESX 4.1 includes three separate … [Read more...] about VMware VAAI Storage Array Support in Plain English

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