You can better match the business requirements for ASAN reliability by adjusting the relevant ASAN configurations.

Data Balancing: When the system detects that disks are not evenly used, it will move some data from disks with high usage to those with low usage for balancing.

Login SCP go to Go to Resource Center to select the resource pool, click Storage > Virtual Storage > Virtual Datastroes click Advanced > Reliability Settings > Data Balancing. Choose the execution time for data balancing on the storage. Off-peak hours are recommended for load balancing.

Data Rebuilding: You can specify the fault confirmation time for nodes and disks respectively. If the time is reached but the issue is still not fixed, data rebuilding will be executed automatically.

Login SCP go to Go to Resource Center to select the resource pool, click Storage > Virtual Storage > Virtual Datastroes click Advanced > Reliability Settings > Data Rebuilding. Choose the time for host and disk Fault Confirmation.

1. For host failure only datastores with no less than 4 nodes are supported.
2. For disk failure only datastores with no less than 3 nodes are supported.

Bad Sector Scan: Disks will be periodically scanned for bad sectors. If any bad sector is detected, disk repairing will be conducted

Login SCP go to Go to Resource Center to select the resource pool, click Storage > Virtual Storage > Virtual Datastroes click Advanced > Reliability Settings > Bad Sector Scan. Choose the execution time for disk bad sector scan on the storage. To ensure scanning speed, it is better to perform scan during off-peak hours.

IO Timeout Handling: You can configure automatic business IO timeout handling and adjust the sensitivity for TCP connection timeout detection. The platform will give alerts when a timeout occurs. When IO read latency on a VM is higher than the specified threshold, the system will automatically read data from other VM replicas to ensure business continuity.

Login SCP go to Go to Resource Center to select the resource pool, click Storage > Virtual Storage > Virtual Datastroes click Advanced > Reliability Settings > IO Timeout Handling. Set the TCP timeout threshold. Currently, it only supports settings of 4s or 5s. It is recommended to set it to 4s.

Linked Clone: Linked clones of a VM use the same data as the original VM by default, and too many uses of that data will cause issues with read/write load balancing. To ensure business performance and continuity, specify a data reuse limit below, so that a new piece of data will be automatically duplicated to maintain read/write load balancing.

Login SCP go to Go to Resource Center to select the resource pool, click Storage > Virtual Storage > Virtual Datastroes click Advanced > Reliability Settings > Linked Clone. Set the data reuse limit value.

RDMA: RDMA reduces virtual storage IO latency for better storage performance. You can enable it only when it is supported by the storage network interface. After it is enabled, a congestion control algorithm must be configured on switches to ensure stable RDMA performance. Enabling or disabling this feature will cause business interruption (such as shutdown of VMs and virtual network devices, and disconnection from iSCSI targets). Avoid changing the settings in a production environment.

Login SCP go to Go to Resource Center to select the resource pool, click Storage > Virtual Storage > Virtual Datastroes click Advanced > Reliability Settings > RDMA. Set the RDMA status.