To improve network reliability and security requirements, we may want to separate the control and storage networks of openstack, that is, to configure the iscsi private network. Taking the kvm + lvm + iscsi ubuntu environment as an example, consider a simple deployment model, a computing node (nova-compute), a storage
Lenovo DSStorageLinuxunderISCSIMulti-Path mapping configurationRenren 2018-01-17Lab Environment: ds4200 storage, B The director pool divides a size of 18g volume 1G Iscsi port port2 and Port3 Port B2 port ip 172.16.1.14/24 port B3 port ip 172.16.1.15/24the client system is a CentOS 6.9 , two Ethernet ports,eth0 port ip 172.16.1.195/24,eth1 Port IP for 172.16.1.196/24. Network is the state of Uni
iSCSI Network Storage ServicesiSCSI implements networked storage, which provides the storage end called target, using the storage end called initiator. Storage space is available on target, initiator is responsible for connecting
Note: We do not have Dell's MD Series Storage Server test, just built an iSCSI service side, using software for Windows to install an iSCSI product IStorage Server, one of their own Baidu can use, After the installation of the default will not create the target itself, you need to manually new target: Hard disk---image files, such as virtual hard disk image (VHD)
I. OverviewIf you encounter large storage and multi-partition mounting in linux, multiple paths are displayed. In this article, configure multiple paths to introduce how to use the iSCSI storage device connection and installation configuration in Linux OS, in particular, the Mutipath multi-path function provided by the Linux operating system is one of the main op
This article System Centos6.0
This paper is mainly used in iSCSI storage configuration and Security authentication.
About the iSCSI aspects of the introduction everyone to inquire about a lot of information; this is no nonsense; go straight to the subject
iSCSI Target
An iSCSI
CentOS6.5 connect to iSCSI Network Storage
Connect to iSCSI network storage in Linux
Operating System Platform: CentOS 6.5 X86_64
Storage Server Software Version: openfiler esa 2.99.1
Install the required package file
[Root @ bogon/] # rpm-qaBinutils
Binutils-2.20.51.0.2-5.
listIscsiadm--mode Discovery--type sendtargets--portal 192.168.4.103--discover #客户端探测服务器共享 (fill the server-side IP)Iscsiadm--mode node--targetname iqn.2016-03.com.haha.xixi:lele--portal 192.168.4.103:3260--login #登入共享存储/ETC/INIT.D/TGTD lsblk #发现共享存储/DEV/SDB1 can be formatted and used for partition mount (note:Note: It is absolutely impossible to mount the shared store on both hosts, or it will cause a file system crash!!! )iSCSI Service Application
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
, format file system# mke2fs-t EXT4/DEV/SDC14 , Mount# mount/dev/sdc1/mnt # Create a file system and mount it to /mnt5 , create a test file, switch to another Initiator node Mount /DEV/SDC1 To see if a file exists# Touch Test.txt; echo "This was Test line" > Test.txt(Node 2 on the operation)1 , Check for disk-free devices and mount them using# fdisk-l2 , directly mount the node just now 1 partition that created the file system /DEV/SDC1# mount/dev/sdc1/mnt3 , switch to /mnt directory to see if
iSCSI Software Target is an optional Windows Services component that provides a centralized, software-and hardware-independent ISCSI disk subsystem in a storage area network (SAN). iSCSI devices access shared storage through a normal TCP/IP network. The official
iSCSI Software Target is an optional Windows Service component that provides a centralized, software-based, and hardware independent ISCSI disk subsystem in a storage area network (SAN). iSCSI devices are shared storage that is accessed through a common TCP/IP network. The o
Different storage vendors have different iscsi configurations. Currently, three approaches are available:
1) directly add the target IP address on the host, and then discover the target. The UIT low-end server architecture storage has been discontinued)
2) some users need to add the iscsi initiator number on the target
Yesterday, a linux system was deployed for a customer. the server itself had only GB disks as the system disk. All data is stored in network storage, and network storage (iSCSI) needs to be mounted to the local device. the configuration process is summarized as follows: Windowsserver2008R2 is deployed remotely, I don't know what network
Create a lun,10g. Create a LUN group, named Rhce, and add the LUN to the LUN group. /etc/iscsi/initiatorname.iscsi[[email protected] iscsi]# cat Initiatorname.iscsi initiatorname= iqn.1994-05.com.redhat:3dfb14784b4bIf you change the name, you need to restart the iSCSI serviceiSCSI Connectivity: 1) found. 2) connection# iscsiadm-m discovery-t st-p 12.12.13.1 #发现 #
theory that can be used is less than the actual one.LUNsYou can also connect multiple logical devices (such as disks, volume groups, and so on) under each SCSI target device (target), so that each logical device has a LUN (Logical Unit number) to identify itself, in order for the system to differentiate between each logical device. Each SCSI ID has a maximum of 32 LUNs, which starts from 0 by default (although 0 is occupied), and each LUN corresponds to a logical device.SCSI Communication Model
, what the company needs to do is stabilize the existing architecture, or look long and deploy new technology.
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