# 查看磁盤歷史IO信息
sar -d 1 1
sar -d 1 1 Linux 2.6.32-754.41.2.el6.x86_64 (tigergaonotes) 03/21/2022 _x86_64_ (4 CPU) 02:46:23 AM DEV tps rd_sec/s wr_sec/s avgrq-sz avgqu-sz await svctm %util 02:46:24 AM dev8-0 2.04 0.00 32.65 16.00 0.01 3.00 1.50 0.31 02:46:24 AM dev8-16 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 02:46:24 AM dev253-0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 02:46:24 AM dev253-1 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 02:46:24 AM dev253-2 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 02:46:24 AM dev253-3 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 02:46:24 AM dev253-4 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 02:46:24 AM dev253-5 4.08 0.00 32.65 8.00 0.01 3.00 0.75 0.31 02:46:24 AM dev253-6 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 02:46:24 AM dev253-7 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 Average: DEV tps rd_sec/s wr_sec/s avgrq-sz avgqu-sz await svctm %util Average: dev8-0 2.04 0.00 32.65 16.00 0.01 3.00 1.50 0.31 Average: dev8-16 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 Average: dev253-0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 Average: dev253-1 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 Average: dev253-2 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 Average: dev253-3 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 Average: dev253-4 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 Average: dev253-5 4.08 0.00 32.65 8.00 0.01 3.00 0.75 0.31 Average: dev253-6 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 Average: dev253-7 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
ll /dev/dm-* brw-rw---- 1 root disk 253, 0 Nov 1 13:12 /dev/dm-0 brw-rw---- 1 root disk 253, 1 Nov 1 13:12 /dev/dm-1 brw-rw---- 1 root disk 253, 2 Nov 1 13:12 /dev/dm-2 brw-rw---- 1 root disk 253, 3 Nov 1 13:12 /dev/dm-3 brw-rw---- 1 root disk 253, 4 Nov 1 13:12 /dev/dm-4 brw-rw---- 1 root disk 253, 5 Nov 1 13:12 /dev/dm-5 brw-rw---- 1 root disk 253, 6 Nov 1 13:12 /dev/dm-6 brw-rw---- 1 root disk 253, 7 Nov 1 13:12 /dev/dm-7 ll /dev/mapper total 0 crw-rw---- 1 root root 10, 58 Nov 1 13:12 control lrwxrwxrwx 1 root root 7 Nov 1 13:12 vg00-lv_home -> ../dm-2 lrwxrwxrwx 1 root root 7 Nov 1 13:12 vg00-lv_kdump -> ../dm-4 lrwxrwxrwx 1 root root 7 Nov 1 13:12 vg00-lv_opt -> ../dm-5 lrwxrwxrwx 1 root root 7 Nov 1 13:12 vg00-lv_opt_ibm -> ../dm-6 lrwxrwxrwx 1 root root 7 Nov 1 13:12 vg00-lv_swap01 -> ../dm-0 lrwxrwxrwx 1 root root 7 Nov 1 13:12 vg00-lv_tmp -> ../dm-3 lrwxrwxrwx 1 root root 7 Nov 1 13:12 vg00-lv_var -> ../dm-1 lrwxrwxrwx 1 root root 7 Nov 1 13:12 vg01-lv_appvol -> ../dm-7