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Technique for managing addition of disks to a volume of a storage system

  • US 7,694,173 B1
  • Filed: 08/22/2008
  • Issued: 04/06/2010
  • Est. Priority Date: 03/21/2003
  • Status: Expired due to Fees
First Claim
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1. A method for managing addition of disks to a volume of a storage system, comprising:

  • implementing a redundant array of independent disks (RAID) subsystem in a storage operating system of the storage system using a configuration management framework;

    issuing a disk addition request to the RAID subsystem; and

    encapsulating a disk addition procedure into a disk addition (diskadd) object conforming to the configuration management framework, the disk addition procedure (i) determining a set of available disks required to satisfy the disk addition request, (ii) selecting one or more disks to add based on mirroring requirement, checksum characteristic, or zeroing characteristic, (iii) monitoring a state of the available disks including disk initialization and disk failures, and (iv) adding selected disks of the available disks into RAID groups once disk initialization has completed.

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