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# Administering spaces using the REST API

This section provides information for working with spaces using the REST API.

In this topic:

## Checking for unsplit Elasticsearch indexes

Admins can use this API before upgrading to ALM Octane 12.60 CP10 to make sure all Elasticsearch indexes can be upgraded. If any Elasticsearch indexes remain "unsplit" after upgrading from ALM Octane 12.60 CP9, the upgrade to CP10 will not work.

POST this REST API request:

`GET http[s]://<server>:<port>/admin/unsplit_shared_spaces`

The space IDs of any unsplit Elasticearch indexes are returned. If any indexes are unsplit, contact support before upgrading to ALM Octane 12.60 CP10.

https://admhelp.microfocus.com ALM Octane 8942
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