Tune your hard disk for high performance Using hdparm
First of all you have to install hdparm in linux.
apt-get install hdparm
#hdparm /dev/sda
/dev/sda:
readonly = 0 (off)
readahead = 120 (on)
geometry = 8850/255/63, sectors = 142182912, start = 0
Hard disk Performance Information
# hdparm -tT /dev/hda
/dev/hdd:
Timing cached reads: 496 MB in 2.00 seconds = 247.42 MB/sec
Timing buffered disk reads: 60 MB in 3.03 seconds = 19.81 MB/sec
Hard drive set to low, slow settings
# hdparm -cuda /dev/hda
/dev/hda:
IO_support = 0 (default 16-bit)
unmaskirq = 0 (off)
using_dma = 0 (off)
readahead = 256 (on)
Use below tweaks to increase disk read write performance.
For sda drive
~]# hdparm -a 2048 /dev/sda
/dev/sda:
setting fs readahead to 2048
readahead = 2048 (on)
For sdb drive
[root@439298a ~]# hdparm -a 2048 /dev/sdb
/dev/sdb:
setting fs readahead to 2048
readahead = 2048 (on)
]# echo “anticipatory” > /sys/block/sdb/queue/scheduler
]# echo “anticipatory” > /sys/block/sda/queue/scheduler