<!--
{
  "availability" : [
    "iOS: 9.0.0 - 27.0.0",
    "iPadOS: 9.0.0 - 27.0.0",
    "macCatalyst: 13.1.0 - 27.0.0",
    "tvOS: 9.0.0 - 27.0.0",
    "visionOS: 1.0.0 - 27.0.0",
    "watchOS: 2.0.0 - 27.0.0"
  ],
  "documentType" : "symbol",
  "framework" : "Foundation",
  "identifier" : "/documentation/Foundation/NSNotification/Name-swift.struct/NSBundleResourceRequestLowDiskSpace",
  "metadataVersion" : "0.1.0",
  "role" : "Type Property",
  "symbol" : {
    "kind" : "Type Property",
    "modules" : [
      "Foundation"
    ],
    "preciseIdentifier" : "c:@NSBundleResourceRequestLowDiskSpaceNotification"
  },
  "title" : "NSBundleResourceRequestLowDiskSpace"
}
-->

# NSBundleResourceRequestLowDiskSpace

Posted after the system detects that the amount of available disk space is getting low. The notification is posted to the default notification center.

```
static let NSBundleResourceRequestLowDiskSpace: NSNotification.Name
```

## Discussion

After receiving this notification, the app should release any on-demand resources that are not required. Call [`endAccessingResources()`](/documentation/Foundation/NSBundleResourceRequest/endAccessingResources()) to release the managed resources. If the app is in the background and the app does not free up enough space, it may be terminated.

> Note:
> This notification is generated independently of any other iOS notifications for low disk space.

---

Copyright &copy; 2026 Apple Inc. All rights reserved. | [Terms of Use](https://www.apple.com/legal/internet-services/terms/site.html) | [Privacy Policy](https://www.apple.com/privacy/privacy-policy)