how to wipe hdd

in computer hardware, compared to the graphics card, CPU, motherboard, hard disk is one of the most easily failed hardware. Then the hard disk stores our important data, so we usually need to use some professional hard disk tools to check the health of the hard drive to back up the data in a timely manner. For HDD detection tools, the most current use is HD Tune HDD Detection Tool. Next, this article with t

Press the WIN+R key combination on the keyboard at the same time, turn on the run, enter Msconfig to open the System configuration interface, switch to the Boot tab, as shown in the following figure: If there are more than one system boot menu in the system, it will be shown here, only Win10 a startup item in the boot menu of the machine. If you have used the NT6 HDD installer, you will have two more startup items here, NT6

For today's computers, the vast majority of motherboards are supported by USB boot, if you find that there is no BIOS inside the USB-HDD option, the key is not set correctly. The first thing to do is to turn on USB boot device support, such as finding options like "USB Storage Legacy Support" or "USB Storage Function" and setting it to "Enabled." Next If "USB-HDD" is not found in the startup type, it may

block of a specified range instead of an entire hard drive example: smartctl-i/dev/sdb Check if Smart is enabled, the last behavior of the output device does not the support SM ART indicates that Smart is not supported, the last behavior of the output smart support is:disabled represents the last act of disabling smart, the output of smart support Is:en Abled indicates that smartctl-s on/dev/s is enabledDB Enable smart feature of hard drive smartctl-s off/dev/sdb Disable smart function of hard

mounted disk directory: [Email protected] ~]# Mkdir/dataMount/DEV/SDC1 to directory/data: [Email protected] ~]# Mount/dev/sdc1/data[Email protected] ~]# df-hFilesystem Size used Avail use% mounted on/DEV/SDA1 20G 7.3G 12G 39%/Tmpfs 32G 72K 32G 1%/DEV/SHM/DEV/SDC1 50G 180M 47G 1%/dataTo set up a Linux system boot automatically mount disk: 1) View the disk UUID [Email protected] ~]# BLKID/DEV/SDC1/dev/sdc1:uuid= "0c43e879-0e8b-4633-aa7b-d3c5a0e10614" type= "Ext4"2) Write/etc/fstab file: Add the l

simulator are emptied and deleted if not needed.Path: ~/library/application support/iphone simulator/6.1/applications (take iOS Simulator 6.1 as an example)5. Removal of archivesImpact: Not recoverable, adhoc or App Store version will be deleted. Recommended Backup dSYM FolderPath: ~/library/developer/xcode/archives6. Removal of DeriveddataImpact: can be regenerated; The build's project index, build output, and log are deleted. When you reopen the project, it will regenerate and the large proje

the storage.9. Use of the experience.In the process of use does not seem so smooth, or record the experience of the process used to give Yimeimei reference. There are two main points.1. When scanning a deep scan of the NTFS partition (or other) you need, there is no need to wait for a full scan to save time.2. If the scanned partition press p or enter after entering into the following terminal screen, do not hit Enter to choose Quit, you can tap the keyboard Q back to the previous partition Sel

-s_291720268.png "title=" image 3.png "alt=" Wkiom1i1sz3xaopyaabanlbzpju039.png-wh_50 "/>There is an array of load drivers to do as above operationConfigure on the ubuntu10.041, in the process of installing the system, to be able to log on to the second console (Ctrl +)alt+f2(in the choice of language that step), in the shell Environment,to see the current disk first, the block needs to be turned into GPT mode:Fdisk-lfirst look at the actual name of the hard drive that needs to be converted, for

directory under the root directory#mkdir/data12) mount the/DEV/SDB1 to the/DATA1#mount/dev/sdb1/data1By the way, the basic usage of Mount:Format: Mount [-parameter] [device name] [Mount Point]Among the parameters commonly used are:-A installs all file systems that are class-out in the/etc/fstab file.-F disguises mount, making checks on the device and the directory look, but does not really mount the file system.-N does not record the installation in the/etc/mtab file.-R tells the file system to

per process=47707.72kb/secmin Xfer=2097152.00Kbchildren See throughput for 1Mixed workload =50807.69kb/Secparent sees throughput for 1Mixed workload =50806.24kb/secmin throughput per process=50807.69kb/sec Max throughput per process=50807.69kb/Secavg throughput per process=50807.69kb/secmin Xfer=2097152.00Kbchildren See throughput for 1Random writers =45131.93kb/Secparent sees throughput for 1Random writers =43955.32kb/secmin throughput per process=45131.93kb/sec Max throughput per process=4513

remove active logical volume Lv-backup? [y/n]: YLogical volume "lv-backup" successfully removed6. Empty the contents of/DEV/VG0/LV01The code is as follows:[Root@localhost tmp]# UMOUNT/MNT/LV01[Root@localhost tmp]# MKFS.EXT3/DEV/VG0/LV01MKE2FS 1.39 (29-may-2006)Filesystem label=OS Type:linux7, the LVM shutdownThe code is as follows:[Root@localhost ~]# UMOUNT/MNT/LV01[Root@localhost ~]# lvremove/dev/vg0/lv01//delete LVDo you really want to remove active logical volume LV01? [y/n]: YLogical volume

1. First check the current hard disk partition status, command sudo fdisk-lRoughly as follows:Device start start end sector Size Id type/DEV/SDA1 2048 206847 204800 100M 7 Hpfs/ntfs/exfat/DEV/SDA2 * 206848 163842047 163635200 78G 7 Hpfs/ntfs/exfat/dev/sda3 163842048 245633023 81790976 39G 7 Hpfs/ntfs/exfat/DEV/SDA4 245635070 976771071 731136002 348.6G F W95 Extension (LBA)/dev/sda5 245635072 481144831 235509760 112.3G 7 Hpfs/ntfs/exfat/dev/sda6 481157120 731011071 249853952 119.1G 7 Hpfs/ntfs/ex

One: Eliminate the shellThere are three styles of ringtones: none, Visible,(1) To eliminate the shell alarm sound, is to press the TAB key is not the sound:Add a line to the/ETC/INPUTRC: (I tried it in RedHat9.0)Set Bell-style NoneSave and restart the system.II: Elimination of VI(1) Interim plansudo rmmod PCSPKRFor Debian/ubuntu users, just open your terminal and run the above command. For Centos/redhat/rhel/fedora Linux users, you need to log in as root and execute Rmmod PCSPKR(2) Plan once and

database backup (replication of changed data), transaction log backup (information in the replication transaction log), database file or filegroup backup (database large, copy part of it)Recovery model:Simple recovery (one of the top two in the backup method), full recovery (first three), bulk-Logged recovery?Database backup:Example: Create a full database backup and differential database backup, log backup, file backup for the MAGDB databaseBackup database docdb to docdb_0 with InitBackup data

-P-P-E)6 #分区号 (starting from 5),/dev/hda6T 8e #分区类型8e表示LVM分区W #写入分区表Partprobe #重读分区表Mkfs–t Ext3/dev/hda6 #格式化Partx/dev/hda #查看当前硬盘的分区表及使用情况Second, the creation of PV, expansion vg,lvPvcreate/dev/hda6Vgdisplay #查看当前已经存在的VG信息, taking the existence of vg:volgroup00 as an exampleVgextend Volgroup00/dev/hda6 #扩展VolGroup00Lvdisplay #查看已经存在的LV信息, taking the existence of LV:LOGVOL01 as an exampleLvextend–l 1g/dev/volgroup00/logvol01 #扩展LVResize2fs/dev/volgroup00/logvol01 #执行该重设大小, valid for LogVol01 cur

The same method is used to mount 4 machines today. View the hard drive area code Fdisk-l650) this.width=650; "src=" Http://s3.51cto.com/wyfs02/M02/4C/34/wKiom1Q41SKzeJK9AAGEsx6hIOo415.jpg "title=" QQ picture 20141011145820.png "alt=" Wkiom1q41skzejk9aagesx6hioo415.jpg "/> to partition Fdisk/dev/sdbJust follow the default size.650) this.width=650; "src=" Http://s3.51cto.com/wyfs02/M00/4C/34/wKiom1Q41m2xTCr6AAMHUxVB1AE562.jpg "title=" QQ picture 20141011150403.png "alt=

Shing Email: [Email protected] Blog: http://blOg.csdn.net/qifengzou Date: 2015.01.16 00:33 Reprint please indicate the CSDN blog from "Chifeng" Before the kernel is upgraded, the system can start and use normally, and when the system kernel is upgraded, the system does not start normally, this may be caused by the incompatible hard drive. can nowthroughEnter the old systemFollowThe following steps step by step to troubleshoot the cause:①, query hard disk control chip manufac

counted from 0, and the partition is counted starting from 1. The third and fourth line commands need to be noted: (Loop)/casper/vmlinuz.efi and (loop)/casper/initrd.lz These two file extensions are not necessarily the same as me, different versions have a certain difference, it is recommended to enter a portion of the TAB key to automatically complete the file name.4, wait for the restart, and then automatically enter the Ubuntu installation screen. Execute the command "sudo umount-l/isodevice

Failure phenomenon: SSD solid-state hard disk has been gradually recognized, we serve the user community has also been the use of solid-state hard disk users, but not too much knowledge of solid-state drives, so we need to use the solid-state hard disk testing, and will detect information feedback user current status. Solution: We like to use Hdtune to look at the smart information of the hard drive when we test HDD. In the SSD era, Crystaldiskinfo

The U-disk boot disk will be inserted into the USB jack of the computer with U start v5.0. (desktop computer recommended to insert the U disk directly to the computer host after the USB jack) to open the computer into the U-boot main menu, with the keyboard key to move the cursor to "07" After running the hard disk Memory detection scan Tool menu , press Return key "Enter" to confirm it, as shown in the following figure: After running the hard disk Memory detection scan Tool menu ,