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I, the storage anarchist, do hereby guarantee to any and all information storage consumers, irrespective of such consumer’s chosen storage vendor or supplier, and/or said consumer’s geographic locale, and, without limits as to time or space, the following: Your storage requirements for a given set of application(s) currently deployed on RAID 1 will be reduced by approximately 43% if you convert to using RAID 5 (7+1) or RAID 6 (14+2). If you choose a different source or target RAID protection ratio, your savings will vary. Your savings percentage can be calculated as 1-(NEW/OLD)%. If you currently use “fat” provisioning and over-allocate capacity by 30% for a set of applications, you will reduce your storage requirements by 30% if you convert that capacity to a “thin” provisioned logical storage device(s). If your storage admins have been over-allocating more than 30%, your savings will be larger; if they have been carefully optimizing their provisioning and over allocating less than 30%, your savings will be less. Your storage requirements for file-system based data can be reduced to only that capacity currently in use by objects stored in that file system if you convert the logical storage device containing that file system to a thinly provisioned device – but only if you are not already using thin provisioning. “Zero space reclamation” features of thin provisioning can recover unused space and space that is specifically released by the host operating system/file system; however, on some popular host/server platforms (e.g. Windows), space for deleted files is not typically released or zeroed, reducing your total opportunity for savings. Consolidating the storage from multiple applications, servers or “virtual machines” can reduce your capacity, CapEx and OpEx requirements vs. direct attached storage installed in your servers/hosts, especially if those applications have capacity and/or retention requirements that are not optimal for so-called “captive storage.” If 10% of your data for a given set of applications changes between backups, you will require 90% less capacity for those applications’ point-in-time backup images if you use logical snapshots instead of full-volume clones. If more changes, your savings will be less. Your on-line and/or backup storage requirements will be reduced by up to 50% through use of data compression, dependent upon data type, content, prior compression, etc. If you routinely store and/or backup a large number of similar data containers (e.g., system/boot images, shared documents, development clones of production data, etc.), your physical storage... Continue »