degaussing destroy hard drive

rationale for this approach is to limit the risk of DOS commands to prevent unauthorized use of these commands to destroy hard disk data. The specific methods are as follows: Use Notepad to open the AutoExec file in the C-packing directory and add the following statement: C:>doskey Format=bad command or filename! C:>doskey Del=bad command or filename! C:>doskey Deltree=bad command or filename! Then sa

How to protect the computer's hard disk, improve its life, avoid bad sectors, how to do?The only way to never be bad is not to. The computer's hard drive actually does not love bad, as long as can make the following three can use a ten years eight years, and now the computer update also fast, 35 hard disk capacity is n

First, the physical machine adds a new hard drive method (the purpose is to add the added disk directly above the existing, no more partition Mount)1, first to determine the existing system on the plate[Email protected] ~]# DF-LHFilesystem Size used Avail use% mounted on/dev/mapper/volgroup-lv_root50G 50G 0 100%/Tmpfs 3.9G 0 3.9G 0%/dev/shm/DEV/SDB1 485M 37M 424M 8%/boot/dev/mapper/volgroup-lv_home75G 7.9G

VolGroupSystem IDFormat lvm2Metadata Areas 1Metadata Sequence No 7VG Access Read/writeVG Status resizableMAX LV 0Cur LV 3Open LV 3Max PV 0Cur PV 1ACT PV 1VG Size 465.27 GiBPE Size 4.00 MiBTotal PE 119109Alloc pe/size 46660/182.27 GiBFree Pe/size 72449/283.00 GiBVG UUID Gpa8xs-znck-mgqj-2vn9-tftq-6you-6atje9Note: Vgdisplay to display metadata information for an LVM volume group[Email protected] ~]# lvextend-l +283g/dev/mapper/volgroup-lv_rootExtending logical Volume Lv_root to 439.39 GiBLogical