Merge pull request #4005 from haileytap/hailey-service-limits

[Azure Search] Clarify relationship between partitions and maximum index size

Author: prmerger-automator[bot]

articles/search/search-limits-quotas-capacity.md

@@ -8,7 +8,7 @@ author: HeidiSteen
 ms.author: heidist
 ms.service: azure-ai-search
 ms.topic: conceptual
-ms.date: 04/04/2025
+ms.date: 04/09/2025
 ms.custom:
   - references_regions
   - build-2024
@@ -57,7 +57,7 @@ Maximum limits on storage, workloads, and quantities of indexes and other object
 
 <sup>3</sup> An upper limit exists for elements because having a large number of them significantly increases the storage required for your index. An element of a complex collection is defined as a member of that collection. For example, assume a [Hotel document with a Rooms complex collection](search-howto-complex-data-types.md#complex-collection-limits), each room in the Rooms collection is considered an element. During indexing, the indexing engine can safely process a maximum of 3,000 elements across the document as a whole. [This limit](search-api-migration.md#upgrade-to-2019-05-06) was introduced in `api-version=2019-05-06` and applies to complex collections only, and not to string collections or to complex fields.
 
-<sup>4</sup> On most tiers, maximum index size is all available storage on your search service. For S2, S3, and S3 HD, the maximum size of any index is the number provided in the table. Applies to search services created after April 3, 2024.
+<sup>4</sup> For most tiers, the maximum index size is the total available storage on your search service. For S2, S3, and S3 HD services with multiple partitions, and therefore more storage, the maximum size of a single index is provided in the table. Applies to search services created after April 3, 2024.
 
 You might find some variation in maximum limits if your service happens to be provisioned on a more powerful cluster. The limits here represent the common denominator. Indexes built to the above specifications are portable across equivalent service tiers in any region.