iomega hdd

-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 ,

of solid-state drives is much more expensive than traditional hard drives, so saving and backing up is still the preferred mechanical hard drive. 8. Does the write cache make sense for solid-state drives? If the solid-state drive supports write caching, what is the Win7 flagship version of the initiative? Some solid-state drives in addition to flash chips, the main controller, but also add a certain amount of RAM as a cache, which is modeled on the traditional hard disk to cache write. For th

: Timing buffered disk reads:422 MB in 3.01 seconds = 140.20 mb/sec [Root@oracle ~]# hdparm-t/dev/xvda /dev/xvda: Timing buffered disk reads:408 MB in 3.01 seconds = 135.59 mb/sec [Root@oracle ~]# hdparm-t/dev/xvda /dev/xvda: Timing buffered disk reads:416 MB in 3.01 seconds = 138.24 mb/sec 4, test the disk cache read Speed: The code is as follows: [Root@oracle ~]# hdparm-t/dev/xvda /dev/xvda: Timing cached reads:11154 MB in 1.98 seconds = 5633.44 mb/sec [Root@oracle ~]# hdparm-t/

Rapidboot HDD Accelerator is the acceleration of system startup. The principle of implementation for the following two aspects: 1, the System to guide the acceleration: install this software, will start the system, for the use of all the boot files, create a compressed cache file, in the boot when the cache file read into memory, reduce startup time to read hard disk frequently, The hard drive to the memory of the burden of transfer to the CP

interface, the data line first pull out, clean up the dust and then inserted. 2, if it is a notebook computer, directly unscrew the screws, plug the hard drive. Then the boot into the BIOS interface, or the Power-on interface when press pause break button to stop the screen to see if the hard drive is displayed. 3, if the BIOS interface has seen the hard drive has been connected, if the system does not go, then the system boot hard drive failed. One, take a system disk, repair system boot.

of data, but its use for the current widely considered sufficient security of 128-bit AES encryption, if the future of the computer run AES decryption instructions speed is greatly improved, then this encryption method is clearly not safe, Seagate upgrades the drive Trus technology only by upgrading the HDD firmware. Second, when the computer sleep state, the thief can steal data through the software or even drive Trus password, this is obviously not

is what the small block in Figure 1 means).So someone would guess that MySQL stored 100G of data, when users visit MySQL, the 10MB data copied to Redis, such as select a id=1000 data, then put id=10 to id=9999 data to Redis, for the next visit. But the key is that MySQL data access, not the local principle of the file, different users access is completely different things, and the order of the ID does not have any relationship.In fact, the strengths of Redis are not here, it is good at preservi

partition:Fdisk/dev/hdaNL #选择逻辑分区, if not, first create an extended partition and then add the logical partition (hard disk: up to four partitions p-p-p-p or P-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