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serviceguard t2808-90006
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serviceguard t2808-90006
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Install
Configuring your Environment
Two Data Center Setup
#RAIDTAB= # MD RAID Commands
Recovery Process
Alternative Power Sources
Using Persistent Device Names
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Legal Notices
Contents
Disaster Scenarios and Their Handling Managing an MD Device
Contents
Contents
Editions and Releases
Printing History
HP Printing Division
Document Organization
Intended Audience
Page
Related
Page
Disaster Tolerance
Evaluating the Need for Disaster Tolerance
Evaluating the Need for Disaster Tolerance
High Availability Architecture
What is a Disaster Tolerant Architecture?
Node 1 fails
Pkg B Client Connections
Disaster Tolerant Architecture
Extended Distance Clusters
Understanding Types of Disaster Tolerant Clusters
From both storage devices
Extended Distance Cluster
Two Data Center Setup
Benefits of Extended Distance Cluster
Cluster Extension CLX Cluster
CLX for Linux Serviceguard Cluster
Shows a CLX for a Linux Serviceguard cluster architecture
Benefits of CLX
Differences Between Extended Distance Cluster and CLX
Continental Cluster
New York Cluster
Los Angeles Cluster
Data Cent er a Data Center B
Continental Cluster
Benefits of Continentalclusters
Continental Cluster With Cascading Failover
Comparison of Disaster Tolerant Solutions
Attributes Extended Distance
Comparison of Disaster Tolerant Cluster Solutions
Continentalclusters
Cluster HP-UX only
Understanding Types of Disaster Tolerant Clusters
Understanding Types of Disaster Tolerant Clusters
Understanding Types of Disaster Tolerant Clusters
WAN
EVA
Protecting Nodes through Geographic Dispersion
Disaster Tolerant Architecture Guidelines
Off-line Data Replication
Protecting Data through Replication
Physical Data Replication
On-line Data Replication
Disadvantages of physical replication in hardware are
Advantages of physical replication in hardware are
Advantages of physical replication in software are
Logical Data Replication
Disadvantages of physical replication in software are
Disadvantages of logical replication are
Ideal Data Replication
Using Alternative Power Sources
Power Circuit 1 node
Alternative Power Sources
Data Center a Node 3 Power Circuit
Creating Highly Available Networking
Disaster Tolerant Wide Area Networking
Disaster Tolerant Local Area Networking
Disaster Tolerant Cluster Limitations
Managing a Disaster Tolerant Environment
Manage it in-house, or hire a service?
How is the cluster maintained?
Additional Disaster Tolerant Solutions Information
Building an Extended Distance
Dwdm
Types of Data Link for Storage Networking
Two Data Center and Quorum Service Location Architectures
Two Data Center and Quorum Service Location Architectures
Server
Two Data Centers and Third Location with Dwdm and Quorum
Two Data Center and Quorum Service Location Architectures
Rules for Separate Network and Data Links
Guidelines on Dwdm Links for Network and Data
Guidelines on Dwdm Links for Network and Data
Guidelines on Dwdm Links for Network and Data Chapter
Configuring your Environment
Understanding Software RAID
Installing XDC
Installing the Extended Distance Cluster Software
Supported Operating Systems
Prerequisites
# rpm -Uvh xdc-A.01.00-0.rhel4.noarch.rpm
Verifying the XDC Installation
Installing the Extended Distance Cluster Software
Configuring the Environment
Configuring the Environment
Configuring the Environment
Setting the Value of the Link Down Timeout Parameter
Configuring Multiple Paths to Storage
Cluster Reformation Time and Timeout Values
Http//docs.hp.com
Using Persistent Device Names
To Create and Assemble an MD Device
Creating a Multiple Disk Device
# mdadm -A -R /dev/md0 /dev/hpdev/sde1 /dev/hpdev/sdf1
Chapter
Linux
#RAIDTAB= # MD RAID Commands
To Edit the Datarep Variable
Creating and Editing the Package Control Scripts
To Create a Package Control Script
Editing the raid.conf File
To Edit the Xdcconfig File parameter
To Configure the RAID Monitoring Service
Cases to Consider when Setting Rpotarget
RPO Target Definitions
Chapter
Multipledevices and Componentdevices
Raidmonitorinterval
Configuring your Environment for Software RAID
Disaster Scenario
What happens when this disaster occurs
Recovery Process
Disaster Scenarios and Their Handling
Disaster Scenarios and Their Handling
# mdadm --remove /dev/md0
# mdadm -add /dev/md0
Dev/hpdev/mylink-sdf
P1 uses a mirror md0 Run the following command to
S2 is non-current by less
# cmrunpkg packagename
Execute the commands that With md0 consisting of only
N1, for example Becomes accessible from N2
Center
Disaster Scenarios and Their Handling
Managing an MD Device
Cat /proc/mdstat
Viewing the Status of the MD Device
Example A-1 Stopping the MD Device /dev/md0
Stopping the MD Device
Example A-2 Starting the MD Device /dev/md0
Starting the MD Device
# udevinfo -q symlink -n sdc1
Removing and Adding an MD Mirror Component Disk
# mdadm --remove /dev/md0 /dev/hpdev/sde
Adding a Mirror Component Device
Index
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