Dell PowerStore 9200T EMC PowerStore Protecting Your Data - Page 26

Metro Protection, Pre-requisites and limitations, Con a metro volume

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5 Metro Protection This chapter contains the following information: Topics: • Pre-requisites and limitations • Configure a metro volume • Configure host connectivity • Monitor metro resources • Setting metro role • Pause a metro volume • Resume a metro volume • Promote a metro volume • Demote a metro volume • End a metro volume • Using protection policies with metro Pre-requisites and limitations Before configuring metro, consider the following limitations: ● Metro support is available only with PowerStore T model appliances. Metro is not supported with PowerStore X model appliances. ● Metro protection is enabled only for volumes. ● Metro protection supports FC/SCSI or iSCSI connected VMware ESXi hosts. When a connection to a remote system is established, the system automatically detects the configuration and enables the supported capabilities for the remote system. To enable block metro capability, verify that the following conditions are met on both PowerStore systems: ● The two systems are running PowerStore 3.x or later. ● The latency on the remote system is low. ● The data connection type is TCP - When local and remotePowerStore systems running version 3.x (or later) are installed , TCP connection is automatically supported. However, when one or both of the PowerStore systems are running version 2.x, you need to upgrade the systems to 3.x to enable metro. Following the upgrade, an alert is displayed, requiring you to update the remote system connection type. Click the link in the in the displayed alert to open the Update Remote System Transport window. Then, click Update Transport. NOTE: The alert is cleared only after transport is updated. Configure a metro volume About this task Enabling metro configuration for a volume makes it visible to hosts from two PowerStore systems with a remote system connection. The following volumes cannot be configured as metro: ● A volume clone ● A volume that is assigned with a protection policy that includes a replication rule ● A volume that is a member of a volume group ● A volume with a read-only protection policy ● A volume that is being migrated or imported 26 Metro Protection

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Metro Protection
This chapter contains the following information:
Topics:
•
Pre-requisites and limitations
•
Configure a metro volume
•
Configure host connectivity
•
Monitor metro resources
•
Setting metro role
•
Pause a metro volume
•
Resume a metro volume
•
Promote a metro volume
•
Demote a metro volume
•
End a metro volume
•
Using protection policies with metro
Pre-requisites and limitations
Before configuring metro, consider the following limitations:
●
Metro support is available only with PowerStore T model appliances. Metro is not supported with PowerStore X model
appliances.
●
Metro protection is enabled only for volumes.
●
Metro protection supports FC/SCSI or iSCSI connected VMware ESXi hosts.
When a connection to a remote system is established, the system automatically detects the configuration and enables the
supported capabilities for the remote system. To enable block metro capability, verify that the following conditions are met on
both PowerStore systems:
●
The two systems are running PowerStore 3.x or later.
●
The latency on the remote system is low.
●
The data connection type is TCP - When local and remotePowerStore systems running version 3.x (or later) are installed ,
TCP connection is automatically supported. However, when one or both of the PowerStore systems are running version
2.x, you need to upgrade the systems to 3.x to enable metro. Following the upgrade, an alert is displayed, requiring you to
update the remote system connection type. Click the link in the in the displayed alert to open the
Update Remote System
Transport
window. Then, click
Update Transport
.
NOTE:
The alert is cleared only after transport is updated.
Configure a metro volume
About this task
Enabling metro configuration for a volume makes it visible to hosts from two PowerStore systems with a remote system
connection.
The following volumes cannot be configured as metro:
●
A volume clone
●
A volume that is assigned with a protection policy that includes a replication rule
●
A volume that is a member of a volume group
●
A volume with a read-only protection policy
●
A volume that is being migrated or imported
5
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Metro Protection