| Citazione:
|
DUAL Intel E5310 Quad Core Xeon 1.6 Ghz, 4G RAM, 3x147G SAS + RAID1
RAID1 is used to improve performance and as a backup solution. A RAID1 disk array consists of a RAID controller that writes the same data to two separate SAS drives at the same time. It can also read from both drives at once, which greatly increases the speed at which data can be sent to the processor(s). If one drive fails, the other drive can continue to function while the first drive is replaced, resulting in zero downtime in the event of a drive failure. A third SAS drive will be used to archive daily and weekly backups.
What is SAS?
SAS stands for Serial Attached SCSI. SAS drives are the least likely to fail of all hard drive types. They also offer the fastest I/O (read/write) times by spinning at 15,000 RPM's. I am not aware of any type of hard drive that offers better performance and reliability.
|