WARNING: This site is intended for online use only; mass-downloading of pages degrades the server and is prohibited.
If you attempt to use tools to mass-download the site, you may be blocked permanently by automated software.
If you want to read this CertiGuide offline, please use one of the links on the left to purchase a convenient PDF copy. Thank you.

Read this whole guide offline with no ads, for a very low price!
Click Here!

Custom Search






Table Of Contents  CertiGuide to A+ (A+ 4 Real)
 9  Chapter 10: The Small Computer System Interface, SCSI
      9  RAID
           9  RAID Levels

Previous Topic/Section
RAID-5
Previous Page
Pages in Current Topic/Section
1
Next Page
Summary of Common RAID Levels
Next Topic/Section

RAID-0/1

RAID-0/1126 is Redundant (mirrored) Striped Arrays. RAID-0/1 is a combination of RAID levels 0 and 1. At this level of RAID, a RAID-0 stripe set is created across a 2-disk array, as seen in Figure 407. This method will provide greater I/O perform-ance. A duplicate of this striped set is mirrored on another 2-disk array to provide fault tolerance. This configuration provides the performance bene-fits of a RAID-0 array and the fault tolerance of a RAID-1 array, combined. This is the most costly level of RAID because a minimum of four times the usual disk capacity is required to create a RAID-0/1 array.


Figure 407: Mirrored Striped Arrays: RAID 0/1

 


A RAID-0/1 array can continue to operate even when two disks have failed if the two disks are not part of the same RAID-1 mirror set.


 __________________

126. http://www.integratedsolutions.org/raid_ov.htm

Previous Topic/Section
RAID-5
Previous Page
Pages in Current Topic/Section
1
Next Page
Summary of Common RAID Levels
Next Topic/Section

If you find CertiGuide.com useful, please consider making a small Paypal donation to help the site, using one of the buttons below. You can also donate a custom amount using the far right button (not less than $1 please, or PayPal gets most/all of your money!) In lieu of a larger donation, you may wish to consider buying an inexpensive PDF equivalent of the CertiGuide to A+ (A+ 4 Real) from StudyExam4Less.com. Thanks for your support!
Donate $2
Donate $5
Donate $10
Donate $20
Donate $30
Donate: $



Home - Table Of Contents - Contact Us

CertiGuide to A+ (A+ 4 Real) (http://www.CertiGuide.com/apfr/) on CertiGuide.com
Version 1.0 - Version Date: March 29, 2005

Adapted with permission from a work created by Tcat Houser et al.
CertiGuide.com Version Copyright 2005 Charles M. Kozierok. All Rights Reserved.
Not responsible for any loss resulting from the use of this site.