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How to tweak linux server harddisk using hdparm

August 24th, 2013 Leave a comment Go to comments

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

[[email protected] ~]# 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

 

 

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