(Networkfilesystem,sun) or CIFS (Commoninternetfilesystem, Microsoft-developed) file system protocols to communicate with application servers. However, the initiator driver and the TOEHBA card support iSCSI, NFS, and CIFS three protocols.Iv. implementing iSCSI under LinuxThere are three main ways to implement iSCSI technology in Linux network environment:1. Pure
functions as an ISCSI client. An initiator typically serves the same purpose to a computer as a SCSI bus adapter would, except that instead of Physicall Y Cabling SCSI devices (like hard drives and tape changers), a ISCSI initiator sends SCSI commands over an IP network. Debian/ubuntu Linux Install TGTType the following command to install Linux Target Framework
Instructor: Instructor Zeng Yong of Double Star Technology
I. Working Principles of iSCSI
1.1. Composition of iSCSIA simple iSCSI system consists of the following parts:ISCSI initiator or iSCSI HbAIscsi targetEthernet SwitchOne or more servers
1.2 iSCSI initiator
ISCSI init
Use iSCSI Target to create centralized security storage (1)
ISCSI is a block-level protocol used to share original storage devices through TCP/IP networks, you can use an existing IP address and ethernet address, such as a nic, vswitch, or vro, to share and access storage through the iSCSI protocol. ISCSI target is a r
Tags: IP address Windows Server target
Advantages of iSCSI Technology
Compared with traditional SCSI technology, iSCSI technology has three revolutionary changes:
The original SCSI used only on the local machine is transmitted through the TCP/IP network, so that the connection distance can be extended in an unlimited region;
The number of connected servers is infinite (the upper limit of the original SCSI-
iSCSI is a SAN device and the SAN device is primarily a space for providing Server storage. iSCSI (Internet SCSI) is an ip-based data storage device compared to a traditional SAN, which is a fiber-optic transmission medium. It makes it easier for him to apply in the enterprise. 1. The normal network card can be used as iSCSI target but the disadvantage is that it
requires a lot of hardware costs, and a specific tool software for operational management, and an IP san is inexpensive to build, because iSCSI is the transfer of data and the allocation of storage resources over an IP network, so long as it is managed and used on existing networks. This will save you a lot of overhead and training costs.
In fact, the IP San also faces some unavoidable problems:
First, ip-based San-based networked storage is not we
adapters to iSCSI-dedicated distributed switches650) this.width=650; "src=" http://s3.51cto.com/wyfs02/M00/53/DB/wKiom1Ryl7bRujX2AAQHmKQqH1M953.jpg "title=" 7.jpg " alt= "Wkiom1ryl7brujx2aaqhmkqqh1m953.jpg"/>Assign a port group to the virtual adapter and configure the IP.650) this.width=650; "src=" http://s3.51cto.com/wyfs02/M02/53/DC/wKiom1RynQyjh1YjAAFby4NJf2g320.jpg "title=" 8.jpg " alt= "Wkiom1rynqyjh1
Centos6.6 mounts iscsi storage and centos6.6 mounts iscsi
To solve the company's backup and log problems, we have specially set up a backup server and prepared 8 TB storage space for use. Now we will mount iscsi storage on the client.
1. The client installs the iscsi installation package and starts
Yuminstall binutils
ISCSI network storage service, iscsi Network Storage
ISCSI Network Storage Service
1. Structure of this Chapter
2. Overview
3. DAS
Direct-Attached Storage
4. SAN Network
Storage Area Network, a Storage Area Network, uses high-speed fiber channel, high requirements for speed and redundancy, uses ISCSI Storage protocol
CentOS 6.8 Linux iSCSI Server Configuration and Client connection iSCSIFirst, the service-side configuration1, first install a variety of packagesYum Search SCSIISCSI-INITIATOR-UTILS.X86_64:ISCSI Daemon and utility programsiscsi-initiator-utils-devel.x86_64:development files for Iscsi-initiator-utilsLsscsi.x86_64:List SCSI devices (or hosts) and associated inform
" configuration interface, such as, click on the "Add Network ..." buttonSelect Add "VMkernel", such as:Select one of the iSCSI network adapters, such asWrite tag name, other without changes, such asFollow the communication IP that you plan to write to the first iSCSI network card, such as #ps: IP configured to the same segment as the default gatewayClick Finish to create the first
Recent research on libvirt, storage
Create an iSCSI storage pool
Import lib1_conn = libvirt. open ('qemu: // system') # conn = libvirt. open ('qemu: // system ') /dev/Disk/by-pathxmldesc = '''
Logical concept correspondence:
When a storage pool is created and an iqn In The iSCSI server is used as the device, the iqn can understand a pool, and the Lun in the iqn corresponds to the volume in libvirt,
Java Adapter Mode
Recent Learning Java Basics, learning the adapter when puzzled a lot of information on the Internet to check the data, for adapter a lot of information, but the comparison of this article is good, here records, we need to see.
Adapter mode is to transform the interface of a class into another interf
1.Target-side configuration
The target side is the disk array or other host with disk. The Iscsitarget tool maps disk space to the network, and the initiator side can find and use the disk.
Note that a target host can map multiple target to a network, that is, multiple block devices can be mapped to the network.
1) package
Iscsitarget
You can download the latest version from http://sourceforge.net/projects/iscsitarget/files/.
2) Compile and install
Very simple, unpack, compile, install.
Original URL: http://www.cnblogs.com/monodin/p/3874147.html1, problem description 1 07-28 17:22:02.162:e/androidruntime (16779): Java.lang.IllegalStateException:The content of the adapter has changed BU The T ListView does not receive a notification. Make sure the content of your adapter are not modified from a background thread, but only from the UI thread. Make sure your
Adapter universal adapter, only 3 lines, Adapter adapter 3 lines
Not to mention anything. First, an anonymous internal class, one adapter + two listview Optimizations
Note: holder. setText () is to extract the view operation. If you need to operate imageview, add setImageVi
implementing iSCSI shared storage under Linux systemsiSCSI Introduction:iSCSI is a block-level share of SCSI packets based on TCP/IP transport encapsulation, which is also the C/S architecture model, and the server side provides the storage devices required by the client. The client only needs to mount it as a storage device on its own host to partition and format it . Implement iSCSI 2 characters requir
Establish an ISCSI Storage System in a PC architecture
I. Architecture diagram:
650) this. width = 650; "src =" http://www.bkjia.com/uploads/allimg/131228/0035494956-0.png "title =" 1.png"/>
Requirement: Share the/dev/sdc on the iscsi-target server for mounting and use from the windows and linux clients respectively.
Iscsi-target server IP Address: 192.168.10.50
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