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What else can I help you with?
What term is used to describe disk mirroring?
RAID 1. Redundant Array of Independent Disks.
What level of RAID will result in two sets of disks that contain the same information?
RAID 1, RAID 1 + 0, and RAID 5, 6.
How many hard drives does it take to implement RAID 10?
It is a combination of RAID 1 and RAID 0. It takes at least four disks for RAID 10. Refer to A+ at Ch. 6 pages 258.
To provide redundancy you want to implement raid by mirroring the data and use the least number of hard disks which raid level will you implement?
RAID 1
What additional hardware would be necessary to implement each of RAID 1 and RAID 5?
Essentially that just means understanding what raid one and raid 5 are. Raid one stores the data on 2 hard disks, raid 5 stores the data on 3 to 5 disks. In either of these circumstances all the hard disks must be completely identical right down to brand cache, size etc.
What are levels of RAID?
There are 5 levels of the Redundant Array Inexpensive Disks system of data storage. RAID 0 is what most people have all ready i.e. one hard disk in the computer. RAID 1 is two disks that the data is saved to i.e. 1 internal disk and 1 external disk. RAID 2 is when the data is saved to 2 disks at the same time i.e. 1 internal and 1 external / network disk. RAID 3 is when the data is saved to 1 internal disk as well as the network disk and then backed up to a disk in a separate suburb. RAID 4 involves more disks and more complexity with data being stored on separate disk more like inserting pages into a book. I'm sorry but the complexities of RAID 5 is a subject I am still learning
Which of the two raid1 and raid 5 is better under ntfs?
raid 1 because RAID 1 device maintains a mirror of all the data in a partition on another partition of the disk on the array and NTFS support partitioning of disks
What is raid and tell you about different tipes of Raid levels?
RAID is redundant array of inexpensive disks. You have a few disks that are connected and this gives you some advantages. Very simply the levels that you need to know about are: JBOD - Just a bunch of disks. If the RAID is 4 x 1.0 TB you see just that - 4 disks. RAID 0 - Striping . All the disks are connected. in the above example, you see one large 4.0TB disk RAID 1 - Mirroring. Every disk has mirror version. Half the disk can die and you loose nothing. In the above example you see a 2.0 TB disk. RAID 5 - one parity disk. If one disk dies, you loose nothing. In the above example you would see a 3.0 TB disk. RAID 6 - two parity disks. If two disks die, you loose nothing. A 8 disk system would have 6 disk of usable space. Check out Wikipedia for a full explanation.
Why would people utilize RAID 1 so costly?
It's true that whenever you use RAID you create an additional point of fault, but because RAID 1 (mirroring) allows identical content to be repopulated on its member drives, it provides a form of redundancy (which is what was intended [RAID = redundant array of inexpensive disks / independent disks]). However, as most people would say, RAID is not a substitute for a backup, so it's good to have a back up in case if your RAID array fails.
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 Raid 5?
A RAID 5 uses block -level striping with parity data distributed across all member disks. RAID 5 has achieved popularity due to its low cost of redundancy. This can be seen by comparing the number of drives needed to achieve a given capacity. RAID 1 or RAID 0+1, which yield redundancy, give only s / 2 storage capacity, where s is the sum of the capacities of n drives used. In RAID 5, the yield is . As an example, four 1TB drives can be made into a 2 TB redundant array under RAID 1 or RAID 1+0, but the same four drives can be used to build a 3 TB array under RAID 5. Although RAID 5 is commonly implemented in a disk controller, some with hardware support for parity calculations (hardware RAID cards) and some using the main system processor (motherboard based RAID controllers), it can also be done at the operating system level, e.g., using Windows Dynamic Disks or with mdam in Linux. A minimum of three disks is required for a complete RAID 5 configuration. In some implementations a degraded RAID 5 disk set can be made (three disk set of which only two are online), while mdadm supports a fully-functional (non-degraded) RAID 5 setup with two disks - which function as a slow RAID-1, but can be expanded with further volumes. In the example on the right, a read request for block A1 would be serviced by disk 0. A simultaneous read request for block B1 would have to wait, but a read request for B2 could be serviced concurrently by disk 1.
How can different disks be configured for a RAID in Windows?
The answer depends on whether one is looking to configure RAID via hardware or software. Windows is capable under disk management to run RAID via software. The first step is to convert to a dynamic disk. Then the RAID levels supported, in parentheses are Striped, 2 disks (0) Mirrored, 2 disks (1) Striped with parity, which required 3 disks (5) being the three most popular. That said if RAID is being done at the hardware level, then the operating system is oblivious to the fact that it is being raided at all and simply reads what the RAID controller tells it to. In this scenario all RAID levels are suported. For a deeper discussion on raid levels the following site is excellent. http://www.acnc.com/04_01_00.html
