Which of the following is a large hardware/software backup system that uses the RAID technology?
Click on the arrows to vote for the correct answer
A. B. C. D.A.
A Tape Array is a large hardware/software backup system based on the RAID technology.
There is a misconception that RAID can only be used with Disks.
All large storage vendor from HP, to EMC, to Compaq have Tape Array based on RAID technology they offer.
This is a VERY common type of storage at an affordable price as well.
So RAID is not exclusively for DISKS.
Often time this is referred to as Tape Librairies or simply RAIT.
RAIT (redundant array of independent tapes) is similar to RAID, but uses tape drives instead of disk drives.
Tape storage is the lowest-cost option for very large amounts of data, but is very slow compared to disk storage.
As in RAID 1 striping, in RAIT, data are striped in parallel to multiple tape drives, with or without a redundant parity drive.
This provides the high capacity at low cost typical of tape storage, with higher-than-usual tape data transfer rates and optional data integrity.
References: KRUTZ, Ronald L.
& VINES, Russel.
D., The CISSP Prep Guide: Mastering the Ten Domains of Computer Security, 2001, John Wiley & Sons, Page 70
and Harris, Shon (2012-10-18)
CISSP All-in-One Exam Guide, 6th Edition (p.
1271)
McGraw-Hill.
Kindle Edition.
The correct answer is B. Scale Array.
A Scale Array is a type of large hardware/software backup system that uses the RAID (Redundant Array of Independent Disks) technology. RAID is a technology that uses multiple disks to create a single logical unit that provides redundancy and/or increased performance. Scale Arrays typically consist of multiple disks that are configured to work together to provide data redundancy and/or performance.
A Tape Array, on the other hand, is a backup system that uses tape drives to store data. Tape drives are slower than disk drives, but they can store large amounts of data and are often used for long-term data storage.
A Crimson Array and Table Array are not well-known backup systems and are likely fictitious options created to add confusion to the question.
In summary, a Scale Array is a large hardware/software backup system that uses the RAID technology to provide data redundancy and/or increased performance.