Implementation of ASM Resizing in VirtualBox
Implement online ASM resizing
1. First disable the Cluster[Root @ node1 bin] #./crsctl stop crs[Root @ node2 bin] #./crsctl stop crs
Shutdown, halt
Create two vdi disks on the first host, set the sharing, and attach them to node2.Asmn6.vdi 5GAsmn7.vdi 8G
2. Start mounting and create disk partitions for Oracle ASM
[Root @ node1 dev] # ls-la sd *Brw-rw ---- 1 root disk 8, 0 May 9 20:56 sdaBrw-rw ---- 1 root disk 8, 1 May 9 20:56 sda1Brw-rw ---- 1 root d
At present, the integration of optical and IP technology has become the inevitable trend of telecom network development. On the one hand, optical fiber can achieve higher service density, reduce the whole network cost; On the other hand, the new generation of business system should be optimized for IP service, and can integrate the current business.
Telecom operators are looking for solutions that reduce the cost of existing services and provide higher total bandwidth and flexibility for new ap
This is a creation in
Article, where the information may have evolved or changed. > How to use Go to launch new WEB projects, use routing, middleware and let us encrypt authentication. Golang has a great self-service HTTP Server package, needless to say: Net/http, it's very simple, but it's very powerful. Defines the function that handles the route, and the port is 80. "' Gopackage mainimport (" io "" net/http ") func Main () {http. Handlefunc ("/", HelloWorldHandler) http. Listenandserve (":",
the direction is the opposite. The purpose is to check the integrity of the path and ensure that the channel runs through the input endpoint and output endpoint.
What is output endpoint? Snd_soc_dapm_adc, snd_soc_dapm_aif_out, snd_soc_dapm_output, snd_soc_dapm_hp, snd_soc_dapm_spk, etc.
What is input endpoint? Snd_soc_dapm_dac, snd_soc_dapm_aif_in, snd_soc_dapm_input, snd_soc_dapm_vmid, and snd_soc_dapm_mic.
If the number of connections to the output endpoint is 0 or the number of connections t
pattern '/images/' corresponding processor handler (Unless '/images ' is registered separately). Pattern optionally specifies the domain name. The pattern of the specified domain name only matches the URL of the domain name. The specified domain name has a pattern precedence higher than unspecified. Servemux also takes care of sanitizing the URL request path,redirecting any request containing. Or.. Elements or repeated slashes to an equivalent, cleaner URL. "type servemux struct {mu sync. RWMUT
header, if it is a POST request, also need to read the client submitted data, and then to the corresponding handler processing request, handler processing, the data back to the client.
(4) Specific implementation:
Initializes a server that calls net. Listen ("tcp", addr) monitors ports, srv. Serve (NET. Listener) receives request information from the client. Create a connection, execute gorouting
(5.) Two core features of Go HTTP, Conn and servmux, for high concurrency and high performanc
solution to broadband access, but the current large-scale implementation of FTTH is not economical. At the present stage is to realize FTTB/FTTC, the transmission technology can be used by active optical access (including PDH, ATM, SDH, GE/FE, etc.) mainly, but passive optical access (PON) began to be applied. For Ftth,pon, it will be the most economical and effective technical means.
Second, passive optical network (PON)
Compared with the active o
Installing Oracle on Linux often encounters situations where you need to use a bare device, and here's how to set up a bare device on red Hat 4.
This document is installed on the basis of the installation of Oracle software and is installed with the option to install Oracle software only.
The next step is to create a new database based on the bare device ...
1. Add a hard drive to root the OS
[Root@rac1 oracle]# Fdisk-l
disk/dev/sda:255 heads, sectors, 652 cylinders
Units = cylinders of 16
A DB Link must be established between one Oracle database and another Oracle database a few days ago to Insert data from one server to another.
Oracle Server A: Sid: SDH, USERID/PW: NM/NM
Oracle Server B: Sid; gsgx, USERID/PW: gs/gs create the following DB Link:
Create a db Link from B to:
Create database link testdb connect to nm identified by nm using 'sdh ';
DB Link is created successfully. Select i
. deviceType = "disk" scsi1: 2. deviceType = "disk" scsi1: 3. deviceType = "disk" scsi1: 4. deviceType = "disk" scsi1: 5. deviceType = "disk" 3 Node 2 add an existing virtual disk. On the editing machine, select disk, select an existing disk and locate ASM4 in the shared directory. Set SCSI and independent = Persistent4 to close the VM file. Then use UEDIT to open Red Hat Enterprise Linux 4.vmx and add scsi1: 5. deviceType = "disk" 5 Start Node 1 switch to the new fdisk under the ROOT user[Root
, voice and data.
6. The information center is the core of an exchange network with information forwarding, information storage and sharing, and comprehensive information processing and query capabilities. It provides necessary information services globally.
7. The network is easy to manage, maintain, and use.
Iii. Network Technology Design
1. Selection of key network technologies
1) Wan Line Selection
Dedicated Lines provide point-to-point and fixed-bandwidth Digital transmission channels betwe
As the scale of the enterprise expands, the branches of business and office services reach the whole country, even to the global development. This requires enterprise organizations to timely update and optimize their network planning in order to be able to effectively manage the enterprise, promote enterprise information construction, improve their core competitiveness, then the enterprise Headquarters and division between the network? What is the best way to use a networking solution?Corporate
"scratch", make full use of predecessors experience, to avoid falling into the technical misunderstanding, such as the formula is not used, you have to use the double integral deduction. The main feature of hardware development is "broad", what things to know, a good hardware engineer will have to understand a little, of course, some aspects can be deeper into the principle of the level of the better.Like blog title said: about the hardware design of various technologies/standards/chips/devices
. devicetype = "disk"
3. Node 2: add an existing virtual disk. On the editing machine, select a disk, select an existing disk, locate asm4 in the shared directory, and set SCSI and independent = persistent.
4. Close the VM file and use uedit to open Red Hat Enterprise Linux 4.vmx.Scsi1: 5. devicetype = "disk"
5. Start Node 1 and switch to the new fdisk under the root user.
[Root @ node1 ~] # Fdisk-l
Disk/dev/SDH: 8589 MB, 8589934592 bytes255 heads, 6
. deviceType = "disk"
3. Node 2: add an existing virtual disk. On the editing machine, select a disk, select an existing disk, locate ASM4 in the shared directory, and set SCSI and independent = Persistent.
4. Close the VM file and use UEDIT to open Red Hat Enterprise Linux 4.vmx.Scsi1: 5. deviceType = "disk"
5. Start Node 1 and switch to the new fdisk under the ROOT user.
[Root @ node1 ~] # Fdisk-l
Disk/dev/sdh: 8589 MB, 8589934592 bytes255 heads, 6
Wireless access technology is worthy of our research. Many people may not understand wireless access technology and its features. It does not matter. After reading this article, you must have gained a lot, I hope this article will teach you more things. Now, all operators have their own backbone networks, but the planning and construction of their access networks play an important role in connecting customers to their own networks as quickly as possible. Currently, due to factors such as urban c
personnel should first determine whether the fault is a line fault or a device fault. If the fault is a line fault, the fault point should be determined and then the maintenance personnel should be notified to fix the fault. If the fault is a device fault, determine the station where the fault is located, whether the transmission equipment or the optical protection equipment is faulty, to timely repair.
Due to the characteristics of the transmission device, clarifying the connection relationshi
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