[[["容易理解","easyToUnderstand","thumb-up"],["確實解決了我的問題","solvedMyProblem","thumb-up"],["其他","otherUp","thumb-up"]],[["難以理解","hardToUnderstand","thumb-down"],["資訊或程式碼範例有誤","incorrectInformationOrSampleCode","thumb-down"],["缺少我需要的資訊/範例","missingTheInformationSamplesINeed","thumb-down"],["翻譯問題","translationIssue","thumb-down"],["其他","otherDown","thumb-down"]],["上次更新時間:2025-09-04 (世界標準時間)。"],[],[],null,["# Manage your RAG knowledge base (corpus)\n\n| The [VPC-SC security controls](/vertex-ai/generative-ai/docs/security-controls) and\n| CMEK are supported by Vertex AI RAG Engine. Data residency and AXT security controls aren't\n| supported.\n\nThis page describes how you can manage your corpus for RAG tasks by performing\ncorpus management and file management.\n\nCorpus management\n-----------------\n\nA corpus, also referred to as an index, is a collection of documents or source\nof information. The corpus can be queried to retrieve relevant contexts for\nresponse generation. When creating a corpus for the first time, the process\nmight take an additional minute.\n\nThe following corpus operations are supported:\n\nConcurrent operations on corpora aren't supported. For more information, see the\n[RAG API reference for v1beta1](/vertex-ai/generative-ai/docs/model-reference/rag-api) or [RAG API reference for v1](/vertex-ai/generative-ai/docs/model-reference/rag-api-v1).\n\n### File management\n\nThe following file operations are supported:\n\nFor more information, see the\n[RAG API reference for v1beta1](/vertex-ai/generative-ai/docs/model-reference/rag-api) or [RAG API reference for v1](/vertex-ai/generative-ai/docs/model-reference/rag-api-v1).\n\nWhat's next\n-----------\n\n- [Vertex AI RAG Engine quotas](/vertex-ai/generative-ai/docs/quotas#rag-quotas)"]]