RAID1
A RAID1 array is also known as a mirrored set (though mirrors tend to provide reflected images, which RAID1 does not) or a plex.
Once initialised, each device in a RAID1 array contains exactly the same data. Changes are written to all devices in parallel. Data is read from any one device. The driver attempts to distribute read requests across all devices to maximise performance.
All devices in a RAID1 array should be the same size. If they are not, then only the amount of space available on the smallest device is used. Any extra space on other devices is wasted.
http://linux.die.net/man/4/md
>The driver attempts to distribute read requests across all devices to >maximise performance.
ReplyDeleteНаписано, что пытается распределять между всеми устройствами, похоже не всё так однозначно.