multipath routing

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

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

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

After a look at the configuration of other people on the Internet, combined with Redhat's technical white paper, I have personally configured a Dm-multipath storage multi-path implementation on the basis of Centos7+huawei Oceanstore s2600t. Which encountered a number of small problems and do not understand the place, the book did not say that the purge, in this summary, for their own and everyone's reference.1. Install Iscsi-initiator-utils on CentOS7

# 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

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

Storage Multipath Subsystem Device Driver Installation configuration and instructions The storage multi-path software used by a Coal Company's ERP system is datapath currently has two shared vg. A total of 1453Gb data. The IBM System Storage Multipath Subsystem Device Driver (SDD) provides

_home/jre: $ORACLE _home/jlib: $ORACLE _home/rdbms/jlibexport oracle_path=/u01/oracle/dba_scripts/sql: $ORACLE _home/rdbms/adminexport SQLPATH=/ U01/oracle/dba_scripts/sql: $ORACLE _home/rdbms/adminexport path= $ORACLE _home/bin: $ORACLE _home/jdk/bin:/usr/sbin: $PATH: $HOME/binexport oracle_term=xtermstty Erase ^h--oracle User #-------------------------------------------------- -#. bash_profile#---------------------------------------------------# OS User:oracle# application:oracle Database sof

Problem for current multipath delivering Protocol: Assume infinite Receive Buffer. When the buffer is limited, flow control will degrade the throughput a lot. Contribution: The authors uses systematic coding, which saves processing buffer. The basic idea :"Send the redundancy at the beginning and transmit the uncoded packetsLater so that the in-order arriving original packets cocould be released immediately and only the redundancy is Bu already ered.

Description: For iSCSI storage devices with two or more controllers, or for systems with Openfiler with two network adapters. You need to configure Multipath to improve availability. This article uses Openfiler to implement the installation and testing of iSCSI devices. This article NAS uses Openfiler 2.99.1 X64 as an experimental environment to prepare for a recent backup environment deployment. 1. And install the iSCSI Launcher package RPM-IVH i

1PHP2 //Multi-channel branch, multi-condition Operation3 //Address bar input: http://127.0.0.2/text.php?sex=manage=624 $sex=$_get["Sex"];5 $age=$_get["Age"];6 7 if($sex= = "Man"){8 if($age>= 60){9 Echo"This man has retired." ($age-60). " Years. ";Ten}Else{ One Echo"This man is still working, and." (60-$age)." Years before retiring. ; A } - -}Else { the if($age>= 55){ - Echo"This lady has retired." ($age-55). " Years. "; -}Else{ - Echo"This lady is still w

When installing 11GR2 RAC on RHEL6.4, multipath is used to aggregate the disks that bind the multipath and modify the disk permissions to give Grid:asmadmin users and groups.At this point, the disks can be found at the time of installation and the logs areINFO: ... discoverystring =/dev/mapper/*info:executing [/tmp/orainstall2014-11-24_04-55-14pm/ext/bin/kfod, Nohdr=true, Verbose=true, Disks=all, status=tru

When the OCR disk was initialized, a disk read and write error was reported. Error Input/output error when reading and writing test for multipath device DD If=/dev/zero OF=/DEV/MAPPER/VOT1 bs=1mcount=1000 Dd:writing '/dev//mapper/vot1 ': input/output error 1+0 Records in 0+0 Records out The reason is on the multiple path configuration, the production looks multipath–ll VOT1 (360080e50001fa2d0000003ba

Fdisk View disk [root@db11g ~]# Cat/etc/redhat-release Red Hat Enterprise Linux Server release 5.9 (Tikanga) [root@db11g ~]# [root@db11g ~]# [root@db11g ~]# Fdisk-l disk/dev/sda:32.2 GB, 32212254720 bytes 255 heads, Sectors/track, 3916 cylinders Units = Cylinders of 16065 * 8225280 bytes Device Boot Start End Blocks Id System /DEV/SDA1 * 1 104391 Linux /dev/sda2 3916 31350847+ 8e Linux LVM disk/dev/sdb:17.1 GB, 17179869184 bytes 255 heads, Sectors/track, 2088 cylinders Units = Cyli

Vi/etc/my.cnfInnodb_data_home_dir =Innodb_data_file_path=/data/mysql/ibdata1:10m:autoextend (for the current ibdata situation)[[email protected] MySQL] #mkdir-P/data2/mysql[Email protected]]# chown-r mysql:mysql/data2[[email protected] scripts] #du-sh/data/mysql/ibdata174m/data/mysql/ibdata1-RW-RW----1 mysqlmysql 77594624 Mar 16:21 ibdata1[Email protected] mysql]# VI/ETC/MY.CNFModify ibdata1 for the size just detected, accurate to M , you will get an error when you are too big or too small, and

algorithm (SPF) proposed by Dijkstra, which is to send information to all routers in this autonomous system, the method used here is Fan Hong method. The information sent is the link state of many routers adjacent to this router, but this is only part of the information that the router knows. The router uses Van HONGFA to send this message to all routers only when the link state changes. OSPF does not generate routing loops, is not limited by the way

Introduction to WPF (4) custom routing events of WPF routing events, wpf Routing In the previous blog, we wrote a built-in routing event. In addition to the built-in routing events, we can also customize routing events. Next, let'

Some relevant data of Linux routing table =============================================================================== Linux Routing Table maintenance view Linux kernel routing table Use the following route command to view the Linux kernel routing table. # route Destination Gateway genmask Flag

ASP. NET Web API practice series 03, routing templates, routing conventions, routing settings, asp. netapi The routes of ASP. NET Web APIs are similar to those of ASP. net mvc. routes are also placed in RouteTable. You can set a routing template in WebApiConfig. cs in the App_Start folder. The default