This filesystem will be automatically checked every 31 mounts or
180 days, whichever comes first. Use tune2fs -c or -i to override.
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[root@node4 ~]# dd if=/dev/zero of=/dev/sdc count=10 bs=20M
记录了10+0 的读入
记录了10+0 的写出
209715200字节(210 MB)已复制，2.08666 秒，101 MB/秒
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[root@node4 ~]# lvs -a -o +devices
Couldn't find device with uuid zecO8D-2Suc-rnmK-a2Z7-6613-Zy1X-whVS0X.
LV VG Attr LSize Pool Origin Data% Move Log Cpy%Sync Convert Devices
lv_root VolGroup -wi-ao---- 8.54g /dev/sda2(0)
lv_swap VolGroup -wi-ao---- 992.00m /dev/sda2(2186)
lvTest vgTest mwi-a-m-p- 1.00g lvTest_mlog 100.00 lvTest_mimage_0(0),lvTest_mimage_1(0)
[lvTest_mimage_0] vgTest iwi-aom--- 1.00g /dev/sdb(0)
[lvTest_mimage_1] vgTest iwi-aom-p- 1.00g unknown device(0)
