[[["Easy to understand","easyToUnderstand","thumb-up"],["Solved my problem","solvedMyProblem","thumb-up"],["Other","otherUp","thumb-up"]],[["Hard to understand","hardToUnderstand","thumb-down"],["Incorrect information or sample code","incorrectInformationOrSampleCode","thumb-down"],["Missing the information/samples I need","missingTheInformationSamplesINeed","thumb-down"],["Other","otherDown","thumb-down"]],["Last updated 2025-09-04 UTC."],[],[],null,["# AlloyDB V1ALPHA API - Module Google::Cloud::AlloyDB::V1alpha::Instance::InstanceType (v0.14.1)\n\nVersion latestkeyboard_arrow_down\n\n- [0.14.1 (latest)](/ruby/docs/reference/google-cloud-alloy_db-v1alpha/latest/Google-Cloud-AlloyDB-V1alpha-Instance-InstanceType)\n- [0.14.0](/ruby/docs/reference/google-cloud-alloy_db-v1alpha/0.14.0/Google-Cloud-AlloyDB-V1alpha-Instance-InstanceType)\n- [0.13.0](/ruby/docs/reference/google-cloud-alloy_db-v1alpha/0.13.0/Google-Cloud-AlloyDB-V1alpha-Instance-InstanceType)\n- [0.12.0](/ruby/docs/reference/google-cloud-alloy_db-v1alpha/0.12.0/Google-Cloud-AlloyDB-V1alpha-Instance-InstanceType)\n- [0.11.1](/ruby/docs/reference/google-cloud-alloy_db-v1alpha/0.11.1/Google-Cloud-AlloyDB-V1alpha-Instance-InstanceType)\n- [0.10.0](/ruby/docs/reference/google-cloud-alloy_db-v1alpha/0.10.0/Google-Cloud-AlloyDB-V1alpha-Instance-InstanceType)\n- [0.9.0](/ruby/docs/reference/google-cloud-alloy_db-v1alpha/0.9.0/Google-Cloud-AlloyDB-V1alpha-Instance-InstanceType)\n- [0.8.0](/ruby/docs/reference/google-cloud-alloy_db-v1alpha/0.8.0/Google-Cloud-AlloyDB-V1alpha-Instance-InstanceType)\n- [0.7.2](/ruby/docs/reference/google-cloud-alloy_db-v1alpha/0.7.2/Google-Cloud-AlloyDB-V1alpha-Instance-InstanceType)\n- [0.6.0](/ruby/docs/reference/google-cloud-alloy_db-v1alpha/0.6.0/Google-Cloud-AlloyDB-V1alpha-Instance-InstanceType)\n- [0.5.2](/ruby/docs/reference/google-cloud-alloy_db-v1alpha/0.5.2/Google-Cloud-AlloyDB-V1alpha-Instance-InstanceType)\n- [0.4.0](/ruby/docs/reference/google-cloud-alloy_db-v1alpha/0.4.0/Google-Cloud-AlloyDB-V1alpha-Instance-InstanceType)\n- [0.3.0](/ruby/docs/reference/google-cloud-alloy_db-v1alpha/0.3.0/Google-Cloud-AlloyDB-V1alpha-Instance-InstanceType)\n- [0.2.0](/ruby/docs/reference/google-cloud-alloy_db-v1alpha/0.2.0/Google-Cloud-AlloyDB-V1alpha-Instance-InstanceType)\n- [0.1.0](/ruby/docs/reference/google-cloud-alloy_db-v1alpha/0.1.0/Google-Cloud-AlloyDB-V1alpha-Instance-InstanceType) \nReference documentation and code samples for the AlloyDB V1ALPHA API module Google::Cloud::AlloyDB::V1alpha::Instance::InstanceType.\n\nType of an Instance\n\nConstants\n---------\n\n### INSTANCE_TYPE_UNSPECIFIED\n\n**value:** 0 \nThe type of the instance is unknown.\n\n### PRIMARY\n\n**value:** 1 \nPRIMARY instances support read and write operations.\n\n### READ_POOL\n\n**value:** 2 \n\nREAD POOL instances support read operations only. Each read pool instance\nconsists of one or more homogeneous nodes.\n\n\u003cbr /\u003e\n\n- Read pool of size 1 can only have zonal availability.\n- Read pools with node count of 2 or more can have regional availability (nodes are present in 2 or more zones in a region).\n\n### SECONDARY\n\n**value:** 3 \nSECONDARY instances support read operations only. SECONDARY instance\nis a cross-region read replica"]]