@Article{ghandeharizadeh:mitra,
  author = {Shahram Ghandeharizadeh and Roger Zimmermann and Weifeng Shi and
  Reza Rejaie and Doug Ierardi and Ta-Wei Li},
  title = {Mitra--- A Continuous Media Server},
  journal = {Multimedia Tools and Applications},
  year = {1998},
  month = {July},
  volume = {5},
  number = {1},
  pages = {79--108},
  publisher = {Kluwer Academic Publishers},
  later = {ghandeharizadeh:bmitra},
  URL = {http://perspolis.usc.edu/Users/zimmerma/mitra.html},
  keywords = {multimedia, parallel I/O, pario-bib},
  abstract = {Mitra is a scalable storage manager that supports the display of
  continuous media data types, e.g., audio and video clips. It is a software
  based system that employs off-the-shelf hardware components. Its present
  hardware platform is a cluster of multi-disk workstations, connected using an
  ATM switch. Mitra supports the display of a mix of media types. To reduce the
  cost of storage, it supports a hierarchical organization of storage devices
  and stages the frequently accessed objects on the magnetic disks. For the
  number of displays to scale as a function of additional disks, Mitra employs
  staggered striping. It implements three strategies to maximize the number of
  simultaneous displays supported by each disk. First, the EVEREST file system
  allows different files (corresponding to objects of different media types) to
  be retrieved at different block size granularities. Second, the FIXB
  algorithm recognizes the different zones of a disk and guarantees a
  continuous display while harnessing the average disk transfer rate. Third,
  Mitra implements the Grouped Sweeping Scheme (GSS) to minimize the impact of
  disk seeks on the available disk bandwidth. \par In addition to reporting on
  implementation details of Mitra, we present performance results that
  demonstrate the scalability characteristics of the system. We compare the
  obtained results with theoretical expectations based on the bandwidth of
  participating disks. Mitra attains between 65% to 100% of the theoretical
  expectations.},
  comment = {This paper describes the continous media server Mita. Mita runs on
  a cluster of multi-disk HP 9000/735 workstations. Each workstation consists
  of 80 Mbytes of memory and four disks. They implement ''staggered striping''
  of the data in which disks are clustered based on media type and treated as a
  single logical unit. Data is then striped across the logical disk cluster in
  a round-robin fashion. They present performance results as a function of
  total number of disks and the number of disks in a cluster.}
}