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a mixture of Serial attached SCSI (SAS) and midline SAS disk drives configured as RAID 1 (2D+2D and 4D+4D), RAID 5 (3D+1P, 7D+1P, 14D+2P and 28D+4P) and RAID 6 (6D+2P) from 5 – 2048 disk drives for 2 PB of raw capacity; up to 1 TiB flash-protected (backup will last indefinitely), mirrored write cache
RAID 5E, RAID 5EE, and RAID 6E (with the added E standing for Enhanced) generally refer to variants of RAID 5 or 6 with an integrated hot-spare drive, where the spare drive is an active part of the block rotation scheme. This spreads I/O across all drives, including the spare, thus reducing the load on each drive, increasing performance.
Diagram of a RAID 1 setup. RAID 1 consists of an exact copy (or mirror) of a set of data on two or more disks; a classic RAID 1 mirrored pair contains two disks.This configuration offers no parity, striping, or spanning of disk space across multiple disks, since the data is mirrored on all disks belonging to the array, and the array can only be as big as the smallest member disk.
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It facilitates RAID5 functionality without the need of a hardware RAID controller. geom_raid5 allows storage of large amounts of data to be protected against disk failure, while providing good throughput performance. Like other FreeBSD storage modules, geom_raid5 utilizes the GEOM framework. It is built as a kernel loadable module (KLD) which ...
The five-time All-Star finished the game with 16 points on 5-of-15 shooting. ... The Thunder entered the quarterfinal as the West's top seed by virtue of their performance in four group-play games ...