pixel 2 expanded storage

Linux storage experiment 2: LVM operation Linux storage experiment 2: RAID operation http://www.bkjia.com/ OS /201303/195811.html (1) Create LVM Step 1: create another 5 10 mb scsi hard disks. This step is the same as creating a raid in the previous step. For more information, see Step

/raid_lv 15GE2fsck/dev/raid_vg/raid_lvLvreduce-l 15G/DEV/RAID_VG/RAID_LVmount/dev/raid_vg/raid_lv/userhome/Data is stored in the primary disk, and data is mounted from the diskSnapshot Volume: A snapshot volume is also a logical volume, except that the properties of a snapshot volume are not the same as those of a normal logical volume; To obtain a consistent backup of the file system state; After a snapshot volume is created for a logical volume, the physical copy of the data does not occur, on

"//#include "stdio.h" #include "string" #include "iostream" #include "opencv2/core.hpp" #include "opencv2/highgui/highgui.hpp" #include " Opencv2/imgproc/imgproc.hpp "#include" opencv2/opencv.hpp "#include" opencv2/calib3d.hpp "#include" opencv2/ Xfeatures2d.hpp "using namespace std;using namespace cv;using namespace cv::xfeatures2d;/**************************** function: Macro Definition part Description: *****************************************************************************/ /*********