maketestdisc

Linux磁盘测试的源代码,测试磁盘的读写性能

#/bin/ksh

TEST_NAME=${0##*/}
DEVICE_NAME=${1:-$DT_DEVICE}
LOG_FILE=${2:-"${TEST_NAME}-${DEVICE_NAME}.log"}

[[ $DEVICE_NAME = "" ]] &&
{
    print - "Usage: $TEST_NAME device [ log_file ] "
    exit 1
}

DISK_NAME=/dev/r${DEVICE_NAME}
#
# Layout Notes:
#  'a' not used to preserve the disklabel.
#  'c' not used so entire data area can be accessed.
#
date > $LOG_FILE
file ${DISK_NAME}c >> $LOG_FILE
dt of=${DISK_NAME}b log=$LOG_FILE bs=64k limit=204800b pf=pattern_4 lba=64
dt of=${DISK_NAME}d log=$LOG_FILE bs=64k limit=204800b pf=pattern_5 lba=204864
dt of=${DISK_NAME}e log=$LOG_FILE bs=64k limit=204800b pf=pattern_6 lba=409664
dt of=${DISK_NAME}f log=$LOG_FILE bs=64k limit=204800b pf=pattern_7 lba=614464
dt of=${DISK_NAME}g log=$LOG_FILE bs=64k limit=204800b pf=pattern_8 lba=819264
dt of=${DISK_NAME}h log=$LOG_FILE bs=64k limit=204800b pf=pattern_9 lba=1024064
date >> $LOG_FILE