diff --git a/docs/attributes-registry/system.md b/docs/attributes-registry/system.md
index 73ac3757bc..a7db5e3fb9 100644
--- a/docs/attributes-registry/system.md
+++ b/docs/attributes-registry/system.md
@@ -54,6 +54,7 @@
 | `free` | free | ![Experimental](https://img.shields.io/badge/-experimental-blue) |
 | `buffers` | buffers | ![Experimental](https://img.shields.io/badge/-experimental-blue) |
 | `cached` | cached | ![Experimental](https://img.shields.io/badge/-experimental-blue) |
+| `shared` | shared | ![Deprecated](https://img.shields.io/badge/-deprecated-red)<br>Removed, report shared memory usage with `metric.system.memory.shared` metric |
 <!-- endsemconv -->
 
 ## Paging attributes
diff --git a/docs/system/system-metrics.md b/docs/system/system-metrics.md
index 423c52c077..0938fbbe08 100644
--- a/docs/system/system-metrics.md
+++ b/docs/system/system-metrics.md
@@ -30,6 +30,7 @@ Resource attributes related to a host, SHOULD be reported under the `host.*` nam
 - [Memory Metrics](#memory-metrics)
   - [Metric: `system.memory.usage`](#metric-systemmemoryusage)
   - [Metric: `system.memory.limit`](#metric-systemmemorylimit)
+  - [Metric: `system.memory.shared`](#metric-systemmemoryshared)
   - [Metric: `system.memory.utilization`](#metric-systemmemoryutilization)
 - [Paging/Swap Metrics](#pagingswap-metrics)
   - [Metric: `system.paging.usage`](#metric-systempagingusage)
@@ -204,6 +205,7 @@ available on the system, that is `system.memory.limit`.
 | `free` | free | ![Experimental](https://img.shields.io/badge/-experimental-blue) |
 | `buffers` | buffers | ![Experimental](https://img.shields.io/badge/-experimental-blue) |
 | `cached` | cached | ![Experimental](https://img.shields.io/badge/-experimental-blue) |
+| `shared` | shared | ![Deprecated](https://img.shields.io/badge/-deprecated-red)<br>Removed, report shared memory usage with `metric.system.memory.shared` metric |
 <!-- endsemconv -->
 
 ### Metric: `system.memory.limit`
@@ -228,7 +230,7 @@ This metric is [opt-in][MetricOptIn].
 <!-- semconv metric.system.memory.shared(metric_table) -->
 | Name     | Instrument Type | Unit (UCUM) | Description    | Stability |
 | -------- | --------------- | ----------- | -------------- | --------- |
-| `system.memory.shared` | UpDownCounter | `By` | Reports shared memory. | ![Experimental](https://img.shields.io/badge/-experimental-blue) |
+| `system.memory.shared` | UpDownCounter | `By` | Reports shared memory. Memory used (mostly) by tmpfs. | ![Experimental](https://img.shields.io/badge/-experimental-blue) |
 <!-- endsemconv -->
 
 <!-- semconv metric.system.memory.shared(full) -->
@@ -257,6 +259,7 @@ This metric is [recommended][MetricRecommended].
 | `free` | free | ![Experimental](https://img.shields.io/badge/-experimental-blue) |
 | `buffers` | buffers | ![Experimental](https://img.shields.io/badge/-experimental-blue) |
 | `cached` | cached | ![Experimental](https://img.shields.io/badge/-experimental-blue) |
+| `shared` | shared | ![Deprecated](https://img.shields.io/badge/-deprecated-red)<br>Removed, report shared memory usage with `metric.system.memory.shared` metric |
 <!-- endsemconv -->
 
 ## Paging/Swap Metrics
diff --git a/model/metrics/system-metrics.yaml b/model/metrics/system-metrics.yaml
index 73cdeaa22b..d4abffc4da 100644
--- a/model/metrics/system-metrics.yaml
+++ b/model/metrics/system-metrics.yaml
@@ -81,7 +81,7 @@ groups:
     type: metric
     metric_name: system.memory.shared
     stability: experimental
-    brief: "Reports shared memory."
+    brief: "Reports shared memory. Memory used (mostly) by tmpfs."
     instrument: updowncounter
     unit: "By"
 
diff --git a/model/registry/system.yaml b/model/registry/system.yaml
index 8033918537..9f64cc4519 100644
--- a/model/registry/system.yaml
+++ b/model/registry/system.yaml
@@ -71,6 +71,10 @@ groups:
             - id: cached
               value: 'cached'
               stability: experimental
+            - id: shared
+              value: 'shared'
+              stability: experimental
+              deprecated: 'Removed, report shared memory usage with `metric.system.memory.shared` metric'
         stability: experimental
         brief: "The memory state"
         examples: ["free", "cached"]