---
title: "cluster vast-db-configure"
slug: "cluster-vast-db-configure"
tags: ["5.5"]
updated: 2026-10-27T23:00:54Z
published: 2026-10-27T23:00:54Z
canonical: "docs.vastdata.com/cluster-vast-db-configure"
---

> ## Documentation Index
> Fetch the complete documentation index at: https://docs.vastdata.com/llms.txt
> Use this file to discover all available pages before exploring further.

# cluster vast-db-configure

This command sets configuration parameters for VAST Database and VAST Catalog, such as the number of splits and subsplits. Fine-tuning the splits helps improve VAST Catalog performance for queries that require scanning a large amount of table rows.

## Usage

```plaintext
cluster vast-db-configure {--splits COUNT | --subsplits COUNT}
```

## Options

| `--splits COUNT` | Sets the number of splits (concurrent threads) used when processing VAST Database and VAST Catalog queries. Valid values are from 1 to 256. The default value is 8. |
| --- | --- |
| `--subsplits COUNT` | Sets the number of subsplits for VAST Database and VAST Catalog queries. Valid values are from 1 to 64. The default value is 8. |

## Example

```plaintext
vcli: admin> cluster vast-db-configure --splits 16
```