kvr400x64c3a 512

The system has the following disk space information, indicating a boot partition and an lvm:[Root @ gtlions mapper] # df-hFile System capacity in use available % mount point/Dev/mapper/vg_gtlions-lv_root2.2 T 19G 2.1 T 1%/Tmpfs 32G 0 32G 0%/dev/shm/Dev/sda1 485 M 59 M 401 M 13%/bootYou can use fdisk to view the disk. There are two disks: 16 GB sda and 2336GB sdb. Note that both/dev/sda and/dev/sdb display physical information, then/dev/mapper/vg_gtlions-lv_root and/dev/mapper/vg_gtlions-lv_swap

Disk mounting in Linux and disk mounting in Linux The company's hard disk is not enough. A new storage needs to be mounted to the current system. I won't talk about the previous steps. O M is all done. It is nothing more than a set of hardware and networks. Here I will only talk about how to mount it in Linux after it is assigned to me. The procedure is as follows: 1. Check whether the resource has been allocated. [Root @ localhost home] # fdisk-l Disk/dev/sda: 64.4 GB, 64424509440 bytes, 12582

usr[Root @ topseek/] # mkdir data[Root @ topseek/] # lsBin data dev home lib64 media opt root selinux sys usrBoot data2 etc lib lost + found mnt proc sbin srv tmp var(3) partition the new disk[Root @ topseek] # fdisk-lDisk/dev/xvda: 21.5 GB, 21474836480 bytes255 heads, 63 sectors/track, 2610 cylindersUnits = cylinders of 16065*512 = 8225280 bytesSector size (logical/physical): 512 bytes/

bytes,251658240 Sector units= Sector of1 *512=512bytes sector size (logical/Physical):512 bytes /512 bytes i/o size (min/best) :512 byte /512 byte disk label type: DOS disk identifier:0x0007e5bc device Boot StartEnd BlocksIdSystem/dev/sda1* 20481026047512000 83Linux/dev/sda

smaller than the number below. (This rule is to be observed, in addition to note that this is a mirror symmetry, for the sake of convenience, I will directly take the upper left corner as an example, the following rule description is the same)Rule 2) All squares in the first column have numbers. (This rule may not always be maintained.) In the course of the game, it is possible to be destroyed, but to restore this rule as soon as possible)such as Shape 1 and shape 2. Where shape 1 is satisfied

hard disk (in fact, the compatibility with the hard disk is indeed considered at the beginning of the design of the nand flash memory), its performance is also similar to the hard disk: the operation of small data blocks is very slow, the speed of big data blocks is very fast. This difference is far greater than that of other storage media. This performance feature deserves our attention. Technical Features of nand flash memory The basic storage unit of memory and nor flash memory is bit. Users

To create an extended partition:[Email protected] init.d]# Fdisk/dev/sdbWarning:dos-compatible mode is deprecated. It ' s stronglyrecommended toSwitch off the mode (command ' C ') and change display units toSectors (Command ' u ').Command (M for help):Command (M for help): Pdisk/dev/sdb:5368 MB, 5368709120 bytes255 heads, Sectors/track, 652 cylindersUnits = Cylinders of 16065 * 8225280 bytesSector size (logical/physical): bytes/512 bytesI/O size (mini

Size used Avail use% mounted on/dev/mapper/rhel-root 8.5G 3.1G 5.5G 36%/devtmpfs 986M 0 986M 0%/devtmpfs 1001M 84K 1001M 1%/DEV/SHMTMPFS 1001M 8.7M 992M 1%/runtmpfs 1001M 0 1001M 0%/sys/fs/cgroup/dev/sda1 497M 140M 358M 29%/boottmpfs 201M 16K 201M 1%/run/user/42tmpfs 201M 0 20 1M 0%/run/user/0[[emailprotected] ~]# fdisk-ldisk/dev/sda:10.7 GB, 10737418240 bytes, 20971520 sectorsUnits = Sectors of 1 * = bytessector size (logical/physical): bytes/

Liunx Adding a new hard drive is actually the same as windows, but one is graphical and the other is command-line action, but the steps are the same, and the following is a hands-on demonstration and explanationLinux mount new Hard drive 1, view hard disk information Command: Fdisk-l [[emailprotected] ~]# fdisk -lDisk /dev/vda: 21.5 GB, 21474836480 bytes #第一块硬盘的信息和分区信息255 heads, 63 sectors/track, 2610 cylindersUnits = cylinders of 16065 *

1. View the newly added disks as follows:/DEV/SDE for newly added disksThe following script can be used to scanEcho '---' >/sys/class/scsi_host/host0/scan[[emailprotected] ~]# fdisk-ldisk/dev/sda:21.5 GB, 21474836480 bytes255 heads, sectors/track, 2610 Cylin Dersunits = Cylinders of 16065 * 8225280 bytessector size (logical/physical): bytes/512 bytesi/o Size (minimum /optimal): bytes/512 bytesdisk identifie

so on. 　　 Listing 1. Memory sample (test1.c) # Include # Include # Include "memwatch. h" 　　 Int main (void) { Char * ptr1; Char * ptr2; 　　 Ptr1. = malloc (512 ); Ptr2 = malloc (512 ); 　　 Ptr2 = ptr1; Free (ptr2 ); Free (ptr1 ); } 　　 The code in Listing 1 allocates two 512-byte memory blocks, and the pointer to the first memory

Fdisk/dev/SDB N/P/1/+ 50 m/w Fdisk/dev/SDC N/P/1/+ 50 m/w ### Install the soft RAID Tool Download mdadm Http://download.chinaunix.net/down.php? Id = 28095 resourceid = 6641 Site = 1 Tar jxf mdadm-3.0.tar.bz2 Make Make install ### Perform soft RAID Mdadm-c -- verbose/dev/md0 -- level = 1 -- raid-devices = 2/dev/sdb2/dev/sdc2 Y ### Check whether/dev/md0 exists Fdisk-l ### Format Mkfs. ext4/dev/md0 ### View raid Information Mdadm-D/dev/md0 CAT/proc/mdstat ### Mount Mkdir/mdata Mount/dev/md0/

192 MAXLOGMEMBERS 3 MAXDATAFILES 1024 MAXINSTANCES 32 # MAXLOGHISTORY 292 * ** 09:30:03. 000 LOGFILE * ** 09:30:04. 265 GROUP 1 ( 'C: \ APP \ ORACLE \ ORADATA \ TC \ GROUP_1.261.855057597 ', '+ FRA/tc/onlinelog/group_1.257.855057601' ) SIZE 50 m blocksize 512, GROUP 2 ( 'C: \ APP \ ORACLE \ ORADATA \ TC \ GROUP_2.262.855057605 ', '+ FRA/tc/onlinelog/group_2.258.855057607' ) SIZE 50 m blocksize 512, GRO

. Update-AzureDisk-DiskName "vfldev-vfldev-0-201503091934500547"-Label "ResiZedOS"-ResizedSizeInGB 100 # Replace the DiskName with the name of the OSdisk obtained in step 1 and enter the disk size you want to resize. Start the VM through the Azure portal. Log on to the virtual machine and switch to the root user to view the root file system capacity of the current virtual machine.[root@resizeSDA chpaadmin]# df -hFilesystem Size Used Avail Use% Mounted on/dev/sda1 30G 1.1G 27G

1. Expand swap by adding a partition: 1.01 view the swap size [Root @ rhel6-server pub] # Free-m Total used free shared buffers cachedMem: 487 422 65 0 21 109-/+ Buffers/cache: 291 196 Swap: 499 0 499 1.02 check which devices are used by swap [Root @ rhel6-server pub] # Swapon-SFilename type size used priority /Dev/sda5 partition 511992 608-1 1.03 create a new partition to expand swap [Root @ rhel6-server pub] # fdisk-Cu/dev/SDA Command (M for help): p Disk/dev/SDA: 107.4 GB, 107374182400 bytes2

. It is my hobby and my job, because I have been a system and network administrator for many years while studying computer science. I had to sort out software every week, so I established a hierarchical directory structure to store various software packages: Code: Drwxrwxr-x 2 netsw users 512 Aug 3 Audio/Drwxrwxr-x 2 netsw users 512 Jul 9 Benchmark/Drwxrwxr-x 12 netsw users

service providers must verify the value.*/Function ZhozPhpSmtpSendMail ($ from, $ password, $ smtp, $ check = 1 ){If (preg_match ("/^ [^ \ d \-_] [\ w \-] * [^ \-_] @ [^ \-] [a-zA-Z \ d \-] + [^ \-] (\. [^ \-] [a-zA-Z \ d \-] * [^ \-]) * \. [a-zA-Z] {2, 3}/", $ from )){$ This-> username = substr ($ from, 0, strpos ($ from ,"@"));$ This-> password = $ password;$ This-> smtp = $ smtp? $ Smtp: $ this-> smtp;$ This-> check = $ check;$ This-> s_from = $ from;}}/** Function: send an email.* $ To targ

1. view the new disk [root @ brief top61desktop] fdisk-culdevsdcDiskde I. view the new disk [Root @ mongotop61 Desktop] # fdisk-cul/dev/sdc Disk/dev/sdc: 21.5 GB, 21474836480 bytes 255 heads, 63 sectors/track, 2610 cylinders, total 41943040 sectors Units = sectors of 1*512 = 512 bytes Sector size (logical/physical): 512 bytes/

* 221 96 * 3 * 11 * 11 128 * 96 * 106 * 106 2 0 2 128 * 96 * 58 * 58 256 * 96 * 5 * 5 128 * 96 * 54 * 54 1 0 3 128 * 96 * 27 *27 512 * 96 * 3 * 3 128 * 512 * 27 * 27 1 1 4 128 * 512 * 27 * 27 1024 *

\-]*[^\-_]@[^\-][a-za-z\d\-]+[^\-") (\.[ ^\-][a-za-z\d\-]*[^\-]) *\. [A-za-z] {2,3}/", $from)) { $this->username = substr ($from, 0, Strpos ($from, "@")); $this->password = $password; $this->smtp = $smtp? $SMTP: $this->smtp; $this->check = $check; $this->s_from = $from; } } /* * Function: Send mail * $to Target Mailbox * $from Source Mailbox * $subject Message headers * $message Mail Content */ function Zhoz_send ($to, $from, $subject, $message) { Connecting to a server $fp = Fs