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Apparatus and method to write information to two virtual tape servers

  • US 20050066116A1
  • Filed: 09/05/2003
  • Published: 03/24/2005
  • Est. Priority Date: 09/05/2003
  • Status: Active Grant
First Claim
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1. A method to write information to two virtual tape servers, wherein a first virtual tape server comprises one or more first virtual host devices having a first adjustable aggregate bandwidth, and wherein said first virtual tape server provides information to, and receives information from, a second virtual tape server, comprising the steps of:

  • writing a host computer file to one of said one or more virtual host devices disposed in said first virtual tape server;

    queuing a copy job, wherein said copy job comprises copying said host computer file to said second virtual tape server;

    determining the age of said queued copy job;

    setting an age threshold;

    determining if the age of said queued copy job is greater than said age threshold;

    operative if the age of said queued copy job is greater than said age threshold, decreasing said first adjustable aggregate bandwidth.

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