> For the complete documentation index, see [llms.txt](https://docs.greennode.ai/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.greennode.ai/vdb/opensearch-cluster-database-ods/cac-tinh-nang-cua-opensearch-cluster/chinh-sua-opensearch-cluster.md).

# Edit OpenSearch Cluster

On each OpenSearch Cluster, you can edit certain parameters, specifically:

* [Increase number of nodes](/vdb/opensearch-cluster-database-ods/cac-tinh-nang-cua-opensearch-cluster/chinh-sua-opensearch-cluster/tang-so-luong-node.md)
* [Change node IOPS parameters](/vdb/opensearch-cluster-database-ods/cac-tinh-nang-cua-opensearch-cluster/chinh-sua-opensearch-cluster/thay-doi-thong-so-iops-cua-node.md)
* [Resize node disk size](/vdb/opensearch-cluster-database-ods/cac-tinh-nang-cua-opensearch-cluster/chinh-sua-opensearch-cluster/tang-giam-kich-thuoc-o-dia-cua-node.md)
* [Change master account password](/vdb/opensearch-cluster-database-ods/cac-tinh-nang-cua-opensearch-cluster/chinh-sua-opensearch-cluster/thay-doi-mat-khau-tai-khoan-master.md)

For detailed steps, please refer to the sections below.