Добрый день, All.
Насколько я понимаю - объединение дисков в RAID1 должно увеличить
скорость чтения с получившегося блочного устройства или я ошибаюсь ?
Может чего подкрутить надо ?
# hdparm -tT --direct /dev/sda /dev/sdb /dev/md0
/dev/sda:
Timing O_DIRECT cached reads: 524 MB in 2.00 seconds = 261.65 MB/sec
Timing O_DIRECT disk reads: 176 MB in 3.03 seconds = 58.15 MB/sec
/dev/sdb:
Timing O_DIRECT cached reads: 528 MB in 2.01 seconds = 262.20 MB/sec
Timing O_DIRECT disk reads: 176 MB in 3.02 seconds = 58.21 MB/sec
/dev/md0:
Timing O_DIRECT cached reads: 508 MB in 2.01 seconds = 252.40 MB/sec
Timing O_DIRECT disk reads: 170 MB in 3.00 seconds = 56.58 MB/sec
/dev/md0:
Number Major Minor RaidDevice State
0 8 1 0 active sync /dev/sda1
1 8 17 1 active sync /dev/sdb1
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