Endnotes


  1. See "Storage Management Layers: Value-Added Services for Storage Infrastructure," IntelliStorage website, www.intellistorage.com .

  1. See Fred Moore, "Disk and Tape Pricing Guidelines," A Horison Information Strategies White Paper, 2002, Horison Information Strategies, 100 Arapahoe Avenue, Suite 14 Boulder, Colorado 80302, www.horison.com

  1. Jack Robinson, Gregg Ormsbee, and Jorn Rasstad, "Breaking the Limits of Traditional Tape Technology," Tandberg Data White Paper, 2001, Tandberg Data ASA, Kjels sveien 161, PO Box 134 Kjels s, 0411 Oslo, Norway, www.tandberg.com . O-MaSS technology uses a matrix array write head, which Tandberg has been developing for seven years , that enables writing much-denser data and recording 32 tracks at a time. It uses an optical servo system and an optical read head. The intent is to use standard media that is available today that will be housed in a half-inch cartridge similar to that of present-day LTO and DLT, but the tape will be shorter and wider (2.5 to 3 inches) than today's media. O-MaSS uses a center-park, dual-reel design to provide fast access times, and the tape reels are oriented horizontally inside the cartridge. It is also unique in that the tape never leaves the cartridge and the recording head goes inside the cartridge during a read or write operation. With expected introduction in 4Q03, a first-generation implementation is projected to store up to 600GB of uncompressed data on a single O-MaSS data cartridge at data transfer rates up to 64 MB/sec. O-MaSS pricing is expected to be comparable to LTO Ultrium and Super DLTape at product introduction. The company also claims that the O-MaSS technology could be used by other tape technologies to boost their capacity and performance beyond those shown on their current road maps.

  1. Discussed in Jon William Toigo, "Introducing Time Addressable Storage: A Common-Sense Approach To Data Protection," Toigo Partners International Business Technology Brief, May 28, 2003, Toigo Partners International LLC, 1538 Patricia Avenue, Dunedin, FL 34698, www.it-sense.org .

  1. The attention garnered by the group also attracted the interest of the Storage Networking Industry Association (SNIA), which soon after formalized its own forum to look at data protection ”after nearly five years of promising to do so. As of this writing, EBSI is contemplating a merger with SNIA.

  1. See "Axion: Online Protection for the Enterprise," Avamar Technologies White Paper, October 2002, Avamar Technologies, 1A Technology Drive, Irvine, CA 92618, www.avamar.com .

  1. According to Kevin Daly, CEO of Avamar Technologies, Redundant Array of Independent Nodes (RAIN) is a registered trademark of Avamar Technologies, but is widely used in the industry ”albeit with slightly different interpretations and meanings. Unlike the case of Redundant Arrays of Independent Disk (RAID), a quasi standard first articulated during the 1988 annual meeting of the Association for Computing Machinery's Special Interest Group on Management of Data (ACM SIGMOD) in a presentation entitled "A Case for Redundant Arrays of Inexpensive Disks" by a team of University of California Berkeley researchers (Garth Gibson, Randy Katz and David Patterson), Daly concedes that there is no "definitive paper" describing what RAIN is or what RAIN "levels" mean. Interview conducted on July 1, 2003.

  1. Ibid.

  1. Op cit, Jon William Toigo, "Introducing Time Addressable Storage: A Common-Sense Approach To Data Protection," Toigo Partners International Business Technology Brief, May 28, 2003.



The Holy Grail of Network Storage Management
The Holy Grail of Network Storage Management
ISBN: 0130284165
EAN: 2147483647
Year: 2003
Pages: 96

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