disk duplicator

Cause: Virtual Disk (. vmdk) has a disk protection mechanism to prevent multiple virtual machines from simultaneously accessing the same virtual disk (. vmdk) brings about data loss and performance reduction risks. Each time a virtual machine is started, the virtual opportunity to use the extension is. the LCK (Disk l

Applicable platform: aixhzinuxwinsolaris applicable version: all databases 10.1.0.2to12.1.0.1 apply to rac and standalone. Take the RAC environment as an example: Suppose Applicable platform: AIX hp linux win Solaris applicable version: all databases 10.1.0.2 to12.1.0.1 applicable to rac and standalone take the RAC environment as an example: Suppose Applicable platform: AIX hp linux win Solaris Applicable versions: all databases 10.1.0.2 to12.1.0.1 Applicable to rac and standalone Take the

Sometimes we need to grab the entire U-disk as an ISO file, this ISO can be used to burn discs, of course, you can also use the software to burn him back to the other U-disk.Linux is a command that satisfies our first need. Let's take Ubuntu, which runs under the VBox virtual machine, for example. And the green software under Windows WIN32 Disk Imager satisfies our second requirement.-----------------------

1 Basic concepts of disk 1 Track (orbital), Cylinder (cylindrical), sector (sector), head (heads) 2 representation of disks in Linux systems 1 Linux all devices are abstracted into files saved in/dev directory 2 The name of the device is generally hd[a-z] or sd[a-z],[a-z] is a partition number, such as HDA, HDB, SDA, SDB 3 IDE device name is hd[a-z], SATA, SCSI, SAS, USB etc device name is sd[a-z] 3 Concept of Zoning 1 d

Applicable platform: AIX HP Linux win SolarisApplicable version: all databases 10.1.0.2 to12.1.0.1Suitable for RAC and standaloneTake the RAC environment as an example: Assume that Oracle is an Oracle RDBMS group and that the grid is a GI group;For asmlib users:RAC Environment GI owner executes the following command1, #/etc/init.d/oracleasm Scandisks # (root user execution)$> ID$>/etc/init.d/oracleasm Listdisks$>/etc/init.d/oracleasm Querydisk All nodes must be executed;2, at the operating syste

The previous section describes how to initialize a blank disk and create partitions. For a disk with an existing partition, how do we obtain its partition information and delete its partition information? This section discusses these two types of operations.The code for obtaining disk partition information is as follows./*************************************** **

In the previous section, we introduced some basic concepts and main APIs. At the beginning of this section, we will list and analyze some instances. I have tested all the code in this article in vs2008. You only need to replace a few macro definitions to compile and execute the code.In the face of a new disk, the first thing we need to do is to initialize it. It is easy to manage windows disks in the system, but it is slightly complicated to implement

Detailed usage of the old Mao Tao U disk boot disk preparation tool (Graphic tutorial)Now we are using a USB flash drive disk to install the system, and there are a lot of software for creating a USB flash drive disk. Today we will take the old Mao Tao as an example, the following figure shows the tutorials on how to u

There is a P2V over the Windows Server R2 virtual machine, because the original disk is the IDE, the virtual machine is also the IDE, the need to increase the hard disk, but when modifying the hard disk, even in the state of the shutdown is grayed out.After several setbacks, find the following KB, the steps to resolve are as follows:(1) Open ESXi host SSH login;

QIn the demo of msdn, replace the device name with "A:" To obtain the parameters of disk A, read the disk with the resource manager, and then run the program successfully, however, after changing the disk, it will fail. If you change to "cdrom0", the CDROM parameter will not work in any case. How can this problem be solved? AThe floppy

QIn the demo of msdn, replace the device name with "A:" To obtain the parameters of disk A, read the disk with the resource manager, and then run thisProgramIt can be successful, but it will fail after changing a disk. If you change to "cdrom0", you will not be able to get the CDROM parameter in any case. How can this problem be solved? AThe floppy