Data Domain High Availability features Updated: April 4, 2019 In a Data Domain HA configuration, two identical Data Domain controllers (nodes) are configured as an Active-Standby pair. This pair allows for redundancy in the event of a system failure, such as loss of power, or system crash of the Active node.
Data Domain HA provides the following features:
Automatic failover requires no user intervention Fully redundant design with no single point of failure within the system No loss of performance on failover Failover within 10 minutes for most operations (Data Domain Boost applications may take longer than this. CIFS, DD VTL and NDMP must be manually restarted) Ease of management and configuration through DD OS CLIs Alerting for hardware failures and malfunctions Maintains single-node performance and scalability within an HA configuration in both a healthy and degraded state Support of the same feature set as single node Data Domain systems (with the exception Data Domain Extended Retention and vDisk) Supports systems with all SAS drives No impact to the ability to scale the Data Domain system Support for non-disruptive software updates and upgrades
Uehara Y.
Community Manager
Community Manager
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2019年11月13日 22:00
keis3456さん
Data DomainのHA構成はActive-Standby構成なので、シングル構成と比較してパフォーマンスの性能向上は期待できないです。。
https://cpsdocs.dellemc.com/bundle/P_DP_PG/page/GUID-36FE4405-8A6A-4127-9742-9D0F398F7E38.html
に記載がある以下内容で、赤文字のところがその根拠となります。
Data Domain High Availability features
Updated: April 4, 2019
In a Data Domain HA configuration, two identical Data Domain controllers (nodes) are configured as an Active-Standby pair. This pair allows for redundancy in the event of a system failure, such as loss of power, or system crash of the Active node.
Data Domain HA provides the following features:
Automatic failover requires no user intervention
Fully redundant design with no single point of failure within the system
No loss of performance on failover
Failover within 10 minutes for most operations (Data Domain Boost applications may take longer than this. CIFS, DD VTL and NDMP must be manually restarted)
Ease of management and configuration through DD OS CLIs
Alerting for hardware failures and malfunctions
Maintains single-node performance and scalability within an HA configuration in both a healthy and degraded state
Support of the same feature set as single node Data Domain systems (with the exception Data Domain Extended Retention and vDisk)
Supports systems with all SAS drives
No impact to the ability to scale the Data Domain system
Support for non-disruptive software updates and upgrades
keis3456
3 Apprentice
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2019年11月13日 22:00