asp net barcode scanner input Managing LVM Logical Volumes in Software

Generator Data Matrix in Software Managing LVM Logical Volumes

Managing LVM Logical Volumes
ECC200 Decoder In None
Using Barcode Control SDK for Software Control to generate, create, read, scan barcode image in Software applications.
ECC200 Maker In None
Using Barcode drawer for Software Control to generate, create Data Matrix 2d barcode image in Software applications.
To create logical volumes, you use the lvcreate command. With the -n option, you specify the volume s name, which functions like a hard disk partition s label. You use the -L option to specify the size of the volume. The following example creates a logical volume named projects on the rabbit logical group with a size of 20GB. lvcreate -n projects -L 20000M rabbit
DataMatrix Decoder In None
Using Barcode reader for Software Control to read, scan read, scan image in Software applications.
Paint Data Matrix ECC200 In C#
Using Barcode drawer for .NET Control to generate, create Data Matrix image in .NET applications.
You can remove a logical volume with the lvremove command. With lvextend, you can increase the size of the logical volume, and lvreduce will reduce its size.
Encode Data Matrix ECC200 In VS .NET
Using Barcode generator for ASP.NET Control to generate, create Data Matrix 2d barcode image in ASP.NET applications.
DataMatrix Creator In .NET
Using Barcode creation for Visual Studio .NET Control to generate, create Data Matrix 2d barcode image in .NET applications.
RAID and LVM
ECC200 Maker In Visual Basic .NET
Using Barcode maker for VS .NET Control to generate, create Data Matrix image in Visual Studio .NET applications.
Drawing Bar Code In None
Using Barcode generation for Software Control to generate, create bar code image in Software applications.
LVM Example
Draw DataMatrix In None
Using Barcode generation for Software Control to generate, create Data Matrix image in Software applications.
UPC Symbol Creation In None
Using Barcode creator for Software Control to generate, create UPC Code image in Software applications.
Using the example in Figure 6-2, the steps involved in creating and accessing logical volumes are described in following commands. First, use a partition creation tool like fdisk or parted to create the physical partitions on the hard disks hda and hdb. In this example, you create the partitions hda1, hda2, hda3, hdb1, hdb2, hdb3, and hdb4. Then, you initialize the physical volumes with the pvcreate command. The hda1 and hda2 partitions are reserved for the boot and root partitions and are not initialized.
Making EAN / UCC - 13 In None
Using Barcode printer for Software Control to generate, create GS1 - 13 image in Software applications.
Draw UCC.EAN - 128 In None
Using Barcode maker for Software Control to generate, create USS-128 image in Software applications.
6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6
OneCode Drawer In None
Using Barcode generator for Software Control to generate, create 4-State Customer Barcode image in Software applications.
Drawing GTIN - 12 In Java
Using Barcode drawer for Android Control to generate, create UPCA image in Android applications.
Figure 6-2.
Code 3 Of 9 Creation In None
Using Barcode generator for Font Control to generate, create USS Code 39 image in Font applications.
Barcode Printer In .NET Framework
Using Barcode printer for ASP.NET Control to generate, create barcode image in ASP.NET applications.
Logical Volume Management
Encoding Matrix Barcode In .NET Framework
Using Barcode generation for VS .NET Control to generate, create Matrix 2D Barcode image in .NET framework applications.
Generating Code-128 In Visual C#
Using Barcode encoder for .NET Control to generate, create Code 128 image in VS .NET applications.
186 Red Hat Linux Pocket Administrator
EAN-13 Supplement 5 Drawer In Objective-C
Using Barcode creator for iPhone Control to generate, create EAN13 image in iPhone applications.
Recognize EAN13 In .NET Framework
Using Barcode decoder for VS .NET Control to read, scan read, scan image in Visual Studio .NET applications.
pvcreate /dev/hda3 /dev/hdb1 /dev/hdb2 pvcreate /dev/hdb3 /dev/hdb4 You then create the logical groups you want using the vgcreate command. In this case, there are two logical groups, turtle and rabbit. The turtle group uses hdb1 and hdb3, and rabbit uses hda3, hdb2, and hdb4. If you create a physical volume later and want to add it to a volume group, you would use the vgextend command. vgcreate turtle vgcreate rabbit /dev/hdb1 /dev/hdb3 /dev/hda3 /dev/hdb2 /dev/hdb4
You can now create the logical volumes in each volume group, using the lvcreate command. lvcreate lvcreate lvcreate -n var -n home -n projects -l 2000M -l 50000M -l 20000M turtle rabbit rabbit
Then, you can activate the logical volumes. Reboot and use vgchange with the -a y option to activate the logical volumes. vgchange -a y turtle rabbit You can now make file systems for each logical volume. mkfs.ext3 var mkfs.ext3 home mkfs.ext3 projects Then, you can mount the logical volumes. mount var /var mount home /home mount projects /mnt/myprojects
7
Devices and Modules
All devices, such as printers, terminals, and CD-ROMs, are connected to your Linux operating system through special files called device files. Such a file contains all the information your operating system needs to control the specified device. This design introduces great flexibility. The operating system is independent of the specific details for managing a particular device; the specifics are all handled by the device file. The operating system simply informs the device what task it is to perform, and the device file tells it how. If you change devices, you only have to change the device file, not the whole system. To install a device on your Linux system, you need a device file for it, a software configuration such as that provided by a configuration tool, and kernel support usually supplied by a module or support that is already compiled and built into the kernel. An extensive number of device files are already set up for different kinds of devices. Usually you only need one, which is specific to your device. When you add new hardware devices, Kudzu, the Red Hat hardware probing tool, checks for the new hardware when your system boots. The Kudzu tool automatically detects a new device and lets you configure it. A profile of your hardware configurations are saved by Kudzu in the /etc/sysconfig/hwconf file. For more specialized kernel support, you may have to load a kernel module or recompile the kernel, both simple procedures (see 9). In most cases, support is already built into the kernel.
7 7 7 7 7 7 7 7 7 7 7 7 7 7 7 7 7
Copyright © OnBarcode.com . All rights reserved.