MCSE Notes Lecture # 4 : Applying Security to Folders

  • Introduced in 1990s.
  • Partition is Un-limited.
  • Partition is called “Volume” in this standard.
  • We can also create one partition of two disks.
  • Supports Windows 2000, Xp and 2003 Server.
  • “Disk Management” (Product of “Veritas Corporation”) tool is used for volume.
  • Dynamic disk can’t be read in win98.
  • Partition Magic can’t apply on Dynamic Disk.
  • This standard is not used practically because this is software based and if operating system fails then we can’t access volumes.
  • Types of partitions are
  1. Simple Volume
  1. Spanned Volume
  1. Stripe Volume
  1. Mirror Volume
  1. RAID5 Volume

Simple Volume:

Same as “Basic Disk Standard” but we can create volume as per requirement.

Spanned Volume:

  • We can create one volume of more than one hard disks.
  • Data will Read/Write through 1st drive, then 2nd drive, then 3rd drive and so on.
  • Normally used in “Exchange Server”.
  • (e.g.)  600 GB + 600 GB + 300 GB = 1500 GB

Stripe Volume:

  • Enhanced form of “Spanned Volume”.
  • In this method data will Read / Write simultaneously from all disks
  • If one drive fails then all data will be lost.

Mirror Volume:

  • If we create one volume through 100 GB + 100 GB then capacity shows 100 GB in this method instead of 200 GB.
  • 2nd drive will save all data of first drive automatically (Mirror copy of first drive).
  • In this method both Hard disks should be same Company, same RPM, same Cache and same Size is recommended.
  • Used for taking backup normally.
  • We can use only 2 drives.
  • If both drives fail then data can’t be recovered.

 RAID5 Volume:

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