recepies/ssd/trim-test.sh

#!/bin/sh -xe

# mount /dev/sda2 /mnt -o rw,noatime,discard

seq 1 1000 > testfile
hdparm --fibmap testfile | tee out.hdparm

sector=`cat out.hdparm | tail -1 | awk '{ print $2 }'`
hdparm --read-sector $sector /dev/sda > out.$sector.1

rm testfile
sync

hdparm --read-sector $sector /dev/sda > out.$sector.2
md5sum out.$sector.[12]
1	dpavlin	273	#!/bin/sh -xe
2
3			# mount /dev/sda2 /mnt -o rw,noatime,discard
4
5			seq 1 1000 > testfile
6			hdparm --fibmap testfile \| tee out.hdparm
7
8			sector=`cat out.hdparm \| tail -1 \| awk '{ print $2 }'`
9			hdparm --read-sector $sector /dev/sda > out.$sector.1
10
11			rm testfile
12			sync
13
14			hdparm --read-sector $sector /dev/sda > out.$sector.2
15			md5sum out.$sector.[12]