Как будто где-то ограничение.
/dev/hda:
Timing cached reads: 130 MB in 2.00 seconds = 64.90 MB/sec
Timing buffered disk reads: 68 MB in 3.07 seconds = 22.14 MB/sec
/dev/hdb:
Timing cached reads: 156 MB in 2.00 seconds = 77.88 MB/sec
Timing buffered disk reads: 90 MB in 3.06 seconds = 29.38 MB/sec
/dev/hdc:
Timing cached reads: 154 MB in 2.01 seconds = 76.75 MB/sec
Timing buffered disk reads: 94 MB in 3.06 seconds = 30.72 MB/sec
/dev/hdd:
Timing cached reads: 156 MB in 2.00 seconds = 77.89 MB/sec
Timing buffered disk reads: 48 MB in 3.09 seconds = 15.52 MB/sec
b,c и d объединены c помощью LVM. С него на hda копирует 10-15 МБ/сек.
В чём проблема?