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What is a fault tolerance measure known as disk striping with parity?
Wiki User
∙ 15y ago
RAID-5 provides data redundancy by using parity. Parity is a calculated value used to reconstruct data after a failure. While data is being written to a RAID-5 volume, parity is calculated by doing an exclusive OR (XOR) procedure on the data. The resulting parity is then written to the volume.
Wiki User
∙ 11y ago
Wiki User
∙ 15y agoRAID 5
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Which method of fault tolerance is least expensive per MB of storage disk duplexing or disk striping with parity?
has to be raid 5. raid5 with the parity will consume about 1/3 of the disk space but will give just about the highest level of fault tolerance. raid0 - disk striping - will give you the full disk space but no fault tolerance raid1 - disk splitting/ duplexing - will give you full redundancy but will cost 50% of your disk space raid5 - parity - will do block-level striping with parity data , disk space cost about 30%, redundant
Which RAID level will you implement to provide redundancy?
Type your answer here...Answer Explanation: RAID 1 uses a minimum of two hard disks to mirror data for fault tolerance. Each hard disk contains a complete copy of the data. Disk duplexing improves mirroring because each disk is on a separate controller. If one disk or controller fails in a duplexing RAID 1 array, the other disk can take over immediately to provide fault tolerance.RAID 5, also known as disk stripping with parity, provides fault tolerance by striping the data across a minimum of three and a maximum of 32 disks, and by storing parity information on each disk. This allows the RAID array to recover from a single disk failure.RAID 0, also known as disk striping, is used to increase performance by striping data over a minimum of two and a maximum of 32 disks. RAID 0 provides no fault tolerance.RAID 3, also known as disk stripping with a parity disk, provides fault tolerance by writing data across three or more drives. Because the least number of hard disks is required, RAID 1 will be used instead of RAID 3.
What are RAID 1 and RAID 5?
Raid 1 suppports the Mirroring if any one hard disk faild one will get the copy of the data and fault tolerent. after replacing the hard disk you have to re create the mirroring. Raid 5 supports stripped with parity the data will be deviced into blocks and stored in all the drives with the parity information. if any one or two hard disks faild the data will be available.
What is the combining of network cards to provide fault tolerance?
Teaming
What is a computers ability to respond to a fault or catastrophe such as a hardware failure or power outage so that data is not lost?
Fault Tolerance found in CompTIA A+ "Guide to Managing & Maintaining You PC" 6th Edition Chapter 10, Page 480.
Which method of fault tolerance is least expensive per MB of storage disk duplexing or disk striping with parity?
has to be raid 5. raid5 with the parity will consume about 1/3 of the disk space but will give just about the highest level of fault tolerance. raid0 - disk striping - will give you the full disk space but no fault tolerance raid1 - disk splitting/ duplexing - will give you full redundancy but will cost 50% of your disk space raid5 - parity - will do block-level striping with parity data , disk space cost about 30%, redundant
Which method of fault tolerance is the least expensive per MB of storage disk duplexing or disk striping with parity?
Disk duplexing requires writing the same data twice and requires an extra controller.Disk striping with parity only writes once and requires only one controller. Although the parity information in disk striping with parity does take up some space, it does not take up as much space as the duplicate data in disk duplexing.therefore,disk duplexing is more expensive.
What RAID implementation provides no fault tolerance?
RAID level 0RAID 0RAID 0 (block-level striping without parity or mirroring) has no (or zero) redundancy. It provides improved performance and additional storage but no fault tolerance. Any drive failure destroys the array, and the likelihood of failure increases with more drives in the array.
What is the parity used by Microsoft for fault tolerance?
The parity used by Microsoft is Boolean (true/false, one/zero) logic.
What uses data striping to distribute data across multiple disks with no fault tolerance?
RAID 0
How many RAIDS are available for fault tolerance methods?
RAID (Redundant Array of Inexpensive Drives) is the technology developed to decrease risk involved with the usage of individual disks for Storage. RAID adds realibility & provides performance in Read methods. Well Known RAID Levels are 1. RAID0 - Striping, 2. RAID1-Mirroring, 3. RAID2 - Striping at Bit levelusing Errorcorrection code on disks, 4. RAID3 - BYTE Level striping with parity disk, 5. RAID4 -Block Level striping with Dedicatedparity disk, 6. RAID5 - Striping at Block level with Distributed Parity, 7. RAID6 - Block level striping with Dual Distributed Parity.All RAID levelsenable Fault Tolerant storage volumes except RAID0.
Which RAID level will you implement to provide redundancy?
Type your answer here...Answer Explanation: RAID 1 uses a minimum of two hard disks to mirror data for fault tolerance. Each hard disk contains a complete copy of the data. Disk duplexing improves mirroring because each disk is on a separate controller. If one disk or controller fails in a duplexing RAID 1 array, the other disk can take over immediately to provide fault tolerance.RAID 5, also known as disk stripping with parity, provides fault tolerance by striping the data across a minimum of three and a maximum of 32 disks, and by storing parity information on each disk. This allows the RAID array to recover from a single disk failure.RAID 0, also known as disk striping, is used to increase performance by striping data over a minimum of two and a maximum of 32 disks. RAID 0 provides no fault tolerance.RAID 3, also known as disk stripping with a parity disk, provides fault tolerance by writing data across three or more drives. Because the least number of hard disks is required, RAID 1 will be used instead of RAID 3.
What is meant by network resiliency?
a measure of network fault tolerance.
Which topology has the most fault tolerance and redundancy?
The star bus topology has the most fault tolerance.
Does RAID 0 provide fault tolerance?
RAID 0 does not provide any fault tolerance.
What is the importance of fault tolerance in network?
Fault tolerance refers to the ability of a computer network to continue operating properly in the event that one of its components fail. Fault tolerance is therefore important in any network.
What is the advantage of fault tolerance?
Fault Tolerance means that the system will not fail and not stop during the execution (or operation) when a fault is occurred, so fault tolerance mean the ability of handling with faults without stopping the system.
