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EVS provides storage resources. An EVS disk is attached to each DN. All ECSs in a GaussDB(DWS) cluster are within the same VPC to ensure high-speed connections between them.
For details, see section "EVS Snapshot (OBT)" in the Elastic Volume Service Product Description. Parent topic: Backup and Restoration
Does a GaussDB(DWS) Snapshot Have the Same Function as an EVS Snapshot?
Recommended EVS disk space: Utilizing the aforementioned algorithm can be complex. It is advisable to configure the total EVS disk space to match the total data volume after compression, assuming a compression ratio of 5x.
For more information about snapshots, see EVS Snapshots. Parent topic: Backup and Restoration
Each region has its own shared public services (ECS, EVS, OBS, VPC, EIP, and IMS). Regions are either common or dedicated. A common region provides common cloud services available to all tenants.
Disk Capacity Expansion of an EVS Cluster Context As customer services evolve, disk space often becomes the initial bottleneck. In scenarios where other resources are ample, the conventional scale-out process is not only time-consuming but also resource-inefficient.
to the CNs, which then send it back to the application. 3 OS layer OS installed for GaussDB(DWS) clusters This layer provides the running foundation, OS, file system, and network services for GaussDB(DWS). 4 VM layer VM where GaussDB(DWS) clusters are located This layer provides EVS
Each region has its own shared public services (ECS, EVS, OBS, VPC, EIP, and IMS). Regions are either common or dedicated. A common region provides common cloud services available to all tenants.
Cloud data warehouse + SSD cloud disk: Expand the disk capacity by referring Disk Capacity Expansion of an EVS Cluster.
The differences between cloud SSDs and local SSDs are as follows: Cloud SSDs Cloud SSDs use EVS as storage media and can be scaled out as data grows. This is more flexible. Cloud SSDs are not bound to the ECS flavor.
Changing GaussDB(DWS) Cluster Specifications Using the Elastic Specification Change Changing All Specifications Disk Capacity Expansion of an EVS Cluster Parent topic: GaussDB(DWS) Cluster O&M
Elastic specification change is supported only for storage-compute coupled clusters that use ECSs and EVS disks. You can choose Change node flavor to enable elastic specification change.
Similarly, you can calculate the EVS list price for the other periods. Discounted Amount Discounts offered for cloud services, for example, commercial discounts, partner authorized discounts, and promotional discounts. It is the discounted amount based on the list price.
*:get*", "evs:*:list*", "evs:*:create*", Supported: Projects Enterprise projects Deleting a DR backup "dws:disasterRecovery:delete" "dws:*:get*", "dws:*:list*", "ecs:*:get*", "ecs:*:list*", "ecs:*:delete*", "vpc:*:get*", "vpc:*:list*", "vpc:*:delete*", "evs:*:get*", "evs:*:list*"
Does a GaussDB(DWS) Snapshot Have the Same Function as an EVS Snapshot? Parent topic: FAQs
48 384 Arm ECS/storage-compute decoupling EVS dws2.m6.4xlarge.8 16 128 x86 ECS/EVS dws2.m6.8xlarge.8 32 256 x86 ECS/EVS dws2.m6.16xlarge.8 64 512 x86 ECS/EVS dws2.km1.4xlarge.8 16 128 Arm ECS/EVS dws2.km1.6xlarge.8 24 192 Arm ECS/EVS dws2.km1.8xlarge.8 32 256 Arm ECS/EVS dws2.km1.12xlarge
Extreme SSD and Extreme SSD V2 can only be selected for clusters that use ECS for computing and EVS for storage. Read the nodes and select Confirmed. Click Resize Cluster Now. Click Submit.
*:get*", "evs:*:list*", "evs:*:create*", "evs:*:delete*" ] } ] } Example 2: using wildcard character (*) For example, the following policy has all operation permissions on
Extreme SSD and Extreme SSD V2 can only be selected for clusters that use ECS for computing and EVS for storage. Restore to a single-AZ cluster. Restore to a multi-AZ cluster. Only clusters later than 8.2.0.100 can be restored to a multi-AZ cluster.
