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What are two reasons you should not use RAID to replace backups?
RAID should not replace backups because: 1) It is very possible that both disks are damaged at the same moment, for example by fire, overvoltage from a lightning strike etc. 2) RAID does not protect from user accidentally erasing information. And there are plenty of other reasons: 3) Usually RAID arrays are assembled from identical disks from the same manufacturing batch and they are burdened identically. This means that they are quite likely to fail around the same time. 4) RAID array can be corrupted by a single bug or failure in the RAID controller.
What are the three main reasons for using RAID?
What are the three main reasons for using RAID?
How do you setup a RAID network?
I'm not really sure what you really mean. You can set up a RAID array, but not a network that only consists of RAID. However, you can set a cluster NAS server which can utilize RAID arrays. However, RAID is never a substitute for backups, as with RAID arrays each storage device you add creates an additional point of failure - and in cases like RAID level 0 (striping), you will lose everything if even one drive fails.
How do you replace Raid 1 drives with larger raid 1 drives?
It is relatively easy to replace Raid one drive with a larger Raid one drive. You must turn off your system, and take out the drive, and place the larger drive in its place. Next, you turn on the system, and install the larger drive.
Can a officer read and respond to personal text messages during a wrongful raid?
No they cannot
What is the purpose of a Hot Spare in a RAID array?
Used to replace a failed drive in a redundant array.
Is fault-tolerant system used to implement system backups?
Fault Tolerant refers to systems capable of uptimes of 99.999% or higher. RAID disks, multi-pathing, RAIN Networking are some technologies in use in fault tolerant systems that can continue operation during a failure. System backups are NOT part of a fault tolerant plan per se but, are required in a fault tolerant system in case of a complete failure. System backups should always be kept outside of the fault tolerant environment.
Why does raid o not provide fault tolerance?
Different RAID systems have different effects on multiple hard drives. RAID 0 combines storage together. Say you have 2 250GB HDDs combined with RAID 0: that you gives you, essentially, 500GB of storage. The problem with RAID 0 is that if one of the drives were to fail, then the other is to fail too, because of the way RAID 0 works by distributing strands of data over both disks. RAID 0 is sometimes not considered to be a true RAID system because of the lack of fault tolerance. RAID 1 and 5 are more complex to describe, but they generally deal with the same thing: backups. Instead of combining storage, RAID 1 and 5 deal with clones of a particular drive to offer redundancy if one were to fail. Say you have 2 250GB HDDs under RAID 1, essentially giving you 250GB of storage. If one drive were to fail, then the other would serve as a replacement if such were to occur.
What is in raid that is maid in raid?
raid
What is raid 7 Difference between raid 6 and raid 7?
RAID 7 is triple parity RAID 6 is double parity.
Which is faster raid 1 or raid 5?
raid 5
When implementing RAID on a motherboard where do you enable the feature?
RAID is implemented using a RAID controller on the motherboard or on a RAID controller card. RAID is enabled in the BIOS.
