Virtual Storage

1) Explain practical(prenominal) storage on the IBM administration i virtual(prenominal)(prenominal) Storage virtual(prenominal) Storage consists of objects that, when intentd to jack offher, imitate tape, CD, DVD and write-once read-many (WORM) media on the disk units of a System i5. The imitated media appear to the server to be actual media. When virtual storage is used, a virtual cunning description is ca-cad to stake the virtual storage, in a correspondent path that an actual fraud description is needed to support a physical tape cunning. virtual(prenominal) storage is of utility for the following reasons: _ Eliminates media errors _ Eliminates user intervention _ Increases system availability _ Simplifies softw atomic number 18 and data distribution by use electronic distribution _ allows CD, DVD and tape creation entertain the DUPTAP or DUPOPT commands _ increases security by using Object subscribe for digital signatures _ simplifies creating co pies by using catalog shadowing to create them Virtual Tape Virtual tape devices use virtual tape volumes that are created on a servers disk units.

Virtual tape devices sack up perform the same tasks as a physical tape move out: _ erect of base i5/OS (RSTLICPGM is supported) _ SAVSTG _ Dump to Media from SST & DST The considerations for using virtual tape storage include the: _ Correct leave to create virtual images _ Disk space requirements (smallest volume surface is 48 MB. The largest is 1,000,000 MB) _ Quantity of virtual image volumes required _ Maximum wangle size supported by the physical tape device that the virtual tape volume will be salve to _ exploit er profiles used to create the virtual tape ! volume essential have their maximum storage allowed attribute decide to *MAX. 2) Explain the IBM System I disk storgae capabilities 3)If you want to get a copious essay, order it on our website: OrderEssay.net

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