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RAID 1
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What are the four volume types available in Windows 7?
· Simple volume, · Spanned volume, · Striped volume, · Mirrored volume, · RAID 5.
Dynamic disks are mainly used when you want to implement where files can be stored across more than one physical hard drive?
RAID upgrade a disk if the system or boot partition is part of spanned, striped, mirrored, or RAID-5 volume. http://technet.microsoft.com/en-us/library/bb726994.aspx
What type of RAID volume is used for fault tolerance and only requires two drives?
RAID 1 is mirroring without parity or striping. It requires a minimum number of two drives and has a fault tolerance of one. RAID 1 works by writing data to both drives, thereby producing a mirrored set. When the read is requested, it is serviced by the drive that has the lowest seek time plus rotational latency. An example of this set-up is two 1TB drives in RAID 1 that have a combined total of 2TB of storage, but because they are in RAID 1, the effective storage space is 1TB as data is mirrored on both drives. It is effectively a real-time back-up system. If one drive fails, data is not lost.
What is a fault tolerance measure known as disk striping with parity?
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.
What deficiency is associated with RAID 0 compared with RAID 1?
RAID 0 is "Stripping" and RAID1 is "Mirroring". RAID0 doesn't provide fault tolerance but RAID1 does provide fault tolerance because it has a every disk has a mirrored disk so that in case of disk failure the other disk can be used.
Who was Jimmie Doolittle?
he was the leader in a famous raid known as "Doolittle's RAID"
What are the three main versions of RAID?
Even thought there are more than 20 different variants of RAID, they all spawn off of three main technology standards. 1.) Striped (RAID 0) 2.) Mirrored (Raid 1) 3.) Parity (Raid 3,4,5,6) From those three you can create vast complex arrays. For example; RAID 5X5 +1 is what our NAS server has it consists of 50 HDD's where this array combines all three technologies.
Can raid-5 volume be created on a basic disk?
No, its supported on dynamic
When two hard drives are configured as a single volume what is this called?
RAID
You can install an OS on a spanned or stripe volume that uses software RAID?
no
What type of volume uses 50 percent of available space to provide fault tolerance for the volume?
RAID-5
When the system no longer sees one of the hard drives in a RAID 1 Mirrored Array the system gives an error message as?
The answer for the above Question: The computer shows Degraded Error message.
