What is RAID EE?
What is RAID EE?
Theory of RAID EE RAID EE adds more spare disks in a disk group, we call them RAID EE spares to separate the original global, local, and dedicated spares. Spare areas are preserved in each stripe of the disk group and are distributed in the disk group by means of disk rotation.
Is RAID still used?
It is not often in the IT business that a technology which has been developed many decades ago is still widely used and important for administrators and other users. Even modern servers and storages run with RAID technology inside – mostly in enterprises, but more and more in consumer NAS systems as well.
What is RAID 5E?
RAID 5E is a type of nested RAID level that is similar to RAID 5, but includes an integrated hot spare drive. The E in RAID 5E stands for “extended” as it adds on or extends the capabilities of RAID 5. The extended spare drive is part of the overall RAID 5E and can be used for input/output operations.
What is RAID 6E?
RAID 6E is a type of RAID 6 configuration that has an integrated hot spare drive. The E in RAID 6E stands for “extended” as it adds on or extends the capabilities of standard RAID 6. It is part of the overall RAID operations and can be used for input/output operations.
How many drives can a RAID 5 system withstand?
That means it requires at least 4 drives and can withstand 2 drives dying simultaneously. The chances that two drives break down at exactly the same moment are of course very small. However, if a drive in a RAID 5 systems dies and is replaced by a new drive, it takes hours or even more than a day to rebuild the swapped drive.
What is the difference between double parity and RAID 6?
Double parity provides fault tolerance up to two failed drives. This makes larger RAID groups more practical, especially for high-availability systems, as large-capacity drives take longer to restore. RAID 6 requires a minimum of four disks.
What are the advantages and disadvantages of RAID 6?
1 Advantages of RAID 6. Like with RAID 5, read data transactions are very fast. 2 Disadvantages of RAID 6. Write data transactions are slower than RAID 5 due to the additional parity data that have to be calculated. 3 Ideal use. RAID 6 is a good all-round system that combines efficient storage with excellent security and decent performance.
