iscsi multipath

1. Install RPM device-mapper-1.02.79-8.el6.x86_64.rpm device-mapper-event-1.02.79-8.el6.x86_64.rpm device-mapper-multipath-0.4.9-72.el6.x86_64.rpm RPM-IVH device-mapper-multipath-libs-0.4.9-72.el6.x86_64.rpm RPM- IVH device-mapper-1.02.79-8.el6.x86_64.rpm RPM-IVH device-mapper-event-1.02.79-8.el6.x86_64.rpm RPM-IVH device-mapper-multipath-libs-0.4.9-72.el6.x86_64

. Microsoft ISCSI Initiator Microsoft provides iSCSI initiator software that enables Windows clients to simulate an Ethernet card as an iSCSI initiator to initiate access requirements for iSCSI target devices on the network and to establish iSCSI online. The latest releas

= 8225280 bytesDisk /dev/sdb doesn't contain a valid partition tableDisk /dev/sdc: 10.7 GB, 10737418240 bytes255 heads, 63 sectors/track, 1305 cylindersUnits = cylinders of 16065 * 512 = 8225280 bytesDisk /dev/sdc doesn't contain a valid partition table Obtain the scsi id [root@db11g ~]# /sbin/scsi_id -g -u -s /block/sdbSATA_VBOX_HARDDISK_VB3c0bb909-10aab3a0_[root@db11g ~]# /sbin/scsi_id -g -u -s /block/sdcSATA_VBOX_HARDDISK_VB3edd7dc1-fd831bf4_Run the following command in RHEL6: scsi_id --

Implementation of MultiPath software in Linux How Multipath works When the multipath is started, it uses the system command scsi_id-eg-s/block/sdX to obtain the UUID (universally unique identify) of all block devices in proc/partitions ), then, all Block devices with the same UUID are grouped into a Group to generate a corresponding independent device in/dev/mapp

MultipathIn regular configuration of ISCSI initiator, it is only have a single path torwards the target, once the path failed, the Init Iator would lost the connection to their target, that would lead to a single point of failure. For eliminating the backward, we can introduce the concept of multipathing, which have multiple paths for a single target, Only one path failed could not affect the connection between the server and target. The

Use the mpath Device After the multiing is generated using multipath, multiple devices pointing to the same link will be generated in the/dev directory: /Dev/mapper/mpathn /Dev/mpath/mpathn /Dev/dm-n However, their sources are completely different: /Dev/mapper/mpathn is a multi-path device virtualized by multipath. We should use this device; /Dev/mpath/mpathn is created by the udev Device Manager. It actual

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

Sometimes we in the Linux system through the "fdisk-l" command, you will see the/dev/mapper/xxxxx disk, which is likely to be a logical volume, or the configuration of multipath, you can first through "lvdisplay" how to see, then the description is a logical volume, if not , then is the disk multipath configuration, under the Multipath configuration, generally/de

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

Coupled Congestion Control for Multipath transport protocols [draft-ietf-mptcp-congestion-07] Link: http://tools.ietf.org/html/draft-ietf-mptcp-congestion-07 Important documents: [1] wischik, D ., raiciu, C ., greenhalgh, ., and M. handley, "design, implementation and evaluation of congestion control for Multipath TCP", usenix NSDI, March 2011. [2] Damon's NSDI conference video: http://www.youtube.com/watc

Tags: round monitoring ping min UI Yum scsi SDC SELInstalling Multipath SoftwareYum-y Install Device-mapper-multipathStart the daemon processmpathconf--enable--with_multipath yStart the multipath processService Multipath StartView Multipath DevicesMultipath-v2Multipath-llConfigure MULTIPATHD to make it work, edit/etc/m

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

How to create Oracle ASM devices using Device-mapper multipath devices in Red Hat Enterprise Linux 6?EnvironmentRed Hat Enterprise Linux 6 device-mapper Multipath (DM Multipath) Oracle ASM UdevResolutionFollowing steps to create Oracle ASM disks with Dm-multipath on RHEL 6 systems:Determine the Dm_uuid value for each

controller's iSCSI port)▌ Installing the Multipath software[email protected] ~]# Yum install device-mapper Device-mapper-multipath[Email protected] ~]# touch/etc/multipath.conf[Email protected] ~]# Mount–o loop dell_mdss_consolidated_rdvd_6_2_0_2.iso/mnt(This disc is in Http://www.dell.com/support/home/us/en/04/drivers/DriversDetails?productCode=POWERVAULT-MD382

1. SSH to Oracle-node1 and run the following commands:# echo "---" >/sys/class/scsi_host/host3/scan# echo "---" >/sys/class/scsi_host/host4/scan# Service MULTIPATHD Reload# MULTIPATH-LLLook for output from the MULTIPATH-LL command similar to what is listed below:mpath30 (360060e801038f270057f59f70000000e) dm-30 hitachi,df600fMpath31 (360060e801038f270057f59f70000000d) dm-31 hitachi,df600fMpath32 (360060e801

# A basic configuration file with some examples, for device mapper# multipath.# for a complete list of the default Configuration values, see#/usr/share/doc/device-mapper-multipath-0.4.9/multipath.conf.defaults# for a list of Configuration options with descriptions, see#/usr/share/doc/device-mapper-multipath-0.4.9/multipath.conf.annotated # # Remember:after Updati

iSCSI technology was developed by IBM and Cisco in early 2001, and in May 2003 Microsoft was in Windows 2003 Start your own formal support for iSCSI Microsoft has largely driven the development of iSCSI technology. The following is a detailed introduction to how iSCSI is configured on LinuxI.

The multi-path DM-Multipath of the device mapper in a Linux cluster allows you to configure multiple I/O paths between the server node and the storage array as a single device. These I/O paths are physical SAN connections that can contain independent cables, switches, and controllers. Multi-path sets the I/O paths and generates new devices composed of these integrated paths. This video shows the tutorial of the Linux cluster in the old studio and expl

Tags: Oracle software Local DiskSome time ago received a response from the Shenzhen colleague, there is an Oracle cluster load is too high, in order to troubleshoot the problem, the system has restarted, but after the system restarts, 6 of the quorum disk is lost.To find out why, log in to the system, execute df-h, found that the system's/boot partition became MPATHAP1, into the/dev/mapper directory, found more than mpathap1-3 three files. The initial judgment was due to the system's own

Roles page, expand file and storage services, tick "file and iSCSI Server"650) this.width=650; "height=" 499 "title=" clip_image010 "style=" margin:0px;border:0px;padding-top:0px; Padding-right:0px;padding-left:0px;background-image:none, "alt=" clip_image010 "src=" http://s3.51cto.com/wyfs02/ M00/58/42/wkiol1steqvt1hgwaainir2gyfs821.jpg "border=" 0 "/>13. Select the Features page, tick "Multipath i/0" and