first commit

scripts/mon_io

@@ -0,0 +1,42 @@
+#!/bin/bash
+
+export LANG=en_US.UTF-8
+LOG_PATH="/var/log/monitor"
+LOG_NAME="io"
+SAR_INTERVAL=20
+SAR_COUNT=6
+
+function Init {
+    local self_count=$(pgrep -cx "$(basename $0)")
+    [ 0 -eq $? ] || exit 1
+    [ 1 -eq $self_count ] || exit 1
+    type sar > /dev/null || exit 1
+    mkdir -p $LOG_PATH || exit 1
+}
+
+function Log {
+    local msg="$1"
+    local log_time="$(date +'%F %T')"
+    local log_file="$LOG_PATH/$LOG_NAME-${log_time% *}.log"
+    echo "$log_time $msg" >> $log_file
+    cd $LOG_PATH && ls ${LOG_NAME}-* 2>/dev/null \
+        | head -n -7 | xargs rm -f
+}
+
+function GetIOInfo {
+    sar -dp $SAR_INTERVAL $SAR_COUNT | grep '^Average' \
+        | tail -n +2 \
+        | awk '{print $2,$3,-$4/2,$5/2,$8,$10}'
+}
+
+function Main {
+    local line=
+    GetIOInfo | while read line; do
+        Log "$line"
+    done
+}
+
+# start
+Init
+Main
+