diff --git a/Cargo.lock b/Cargo.lock
index 3f0a79afda..3b62f3001a 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -7014,10 +7014,13 @@ dependencies = [
 name = "oximeter-schema"
 version = "0.1.0"
 dependencies = [
+ "anyhow",
  "chrono",
+ "clap",
  "heck 0.5.0",
  "omicron-workspace-hack",
  "oximeter-types",
+ "prettyplease",
  "proc-macro2",
  "quote",
  "schemars",
diff --git a/dev-tools/omdb/tests/test_all_output.rs b/dev-tools/omdb/tests/test_all_output.rs
index 45492c14ce..1afee71122 100644
--- a/dev-tools/omdb/tests/test_all_output.rs
+++ b/dev-tools/omdb/tests/test_all_output.rs
@@ -56,6 +56,7 @@ fn assert_oximeter_list_producers_output(
 
 #[tokio::test]
 async fn test_omdb_usage_errors() {
+    clear_omdb_env();
     let cmd_path = path_to_executable(CMD_OMDB);
     let mut output = String::new();
     let invocations: &[&[&'static str]] = &[
@@ -111,6 +112,8 @@ async fn test_omdb_usage_errors() {
 
 #[nexus_test]
 async fn test_omdb_success_cases(cptestctx: &ControlPlaneTestContext) {
+    clear_omdb_env();
+
     let gwtestctx = gateway_test_utils::setup::test_setup(
         "test_omdb_success_case",
         gateway_messages::SpPort::One,
@@ -271,6 +274,8 @@ async fn test_omdb_success_cases(cptestctx: &ControlPlaneTestContext) {
 /// that's covered by the success tests above.
 #[nexus_test]
 async fn test_omdb_env_settings(cptestctx: &ControlPlaneTestContext) {
+    clear_omdb_env();
+
     let cmd_path = path_to_executable(CMD_OMDB);
     let postgres_url = cptestctx.database.listen_url().to_string();
     let nexus_internal_url =
@@ -504,3 +509,22 @@ async fn do_run_extra<F>(
 
     write!(output, "=============================================\n").unwrap();
 }
+
+// We're testing behavior that can be affected by OMDB-related environment
+// variables.  Clear all of them from the current process so that all child
+// processes don't have them.  OMDB environment variables can affect even the
+// help output provided by clap.  See clap-rs/clap#5673 for an example.
+fn clear_omdb_env() {
+    // Rust documents that it's not safe to manipulate the environment in a
+    // multi-threaded process outside of Windows because it's possible that
+    // other threads are reading or writing the environment and most systems do
+    // not support this.  On illumos, the underlying interfaces are broadly
+    // thread-safe.  Further, Omicron only supports running tests under `cargo
+    // nextest`, in which case there are no threads running concurrently here
+    // that may be reading or modifying the environment.
+    for (env_var, _) in std::env::vars().filter(|(k, _)| k.starts_with("OMDB_"))
+    {
+        eprintln!("removing {:?} from environment", env_var);
+        std::env::remove_var(env_var);
+    }
+}
diff --git a/nexus/src/app/background/tasks/lookup_region_port.rs b/nexus/src/app/background/tasks/lookup_region_port.rs
index fbfc5c5af2..df501fe6b1 100644
--- a/nexus/src/app/background/tasks/lookup_region_port.rs
+++ b/nexus/src/app/background/tasks/lookup_region_port.rs
@@ -53,7 +53,6 @@ impl BackgroundTask for LookupRegionPort {
     ) -> BoxFuture<'a, serde_json::Value> {
         async {
             let log = &opctx.log;
-            info!(&log, "lookup region port task started");
 
             let mut status = LookupRegionPortStatus::default();
 
@@ -147,8 +146,6 @@ impl BackgroundTask for LookupRegionPort {
                 }
             }
 
-            info!(&log, "lookup region port task done");
-
             json!(status)
         }
         .boxed()
diff --git a/nexus/src/app/background/tasks/phantom_disks.rs b/nexus/src/app/background/tasks/phantom_disks.rs
index 4b0d8bec38..7f3fceab1c 100644
--- a/nexus/src/app/background/tasks/phantom_disks.rs
+++ b/nexus/src/app/background/tasks/phantom_disks.rs
@@ -43,7 +43,6 @@ impl BackgroundTask for PhantomDiskDetector {
     ) -> BoxFuture<'a, serde_json::Value> {
         async {
             let log = &opctx.log;
-            warn!(&log, "phantom disk task started");
 
             let phantom_disks = match self.datastore.find_phantom_disks().await
             {
@@ -83,14 +82,13 @@ impl BackgroundTask for PhantomDiskDetector {
                 } else {
                     info!(
                         &log,
-                        "phandom disk {} un-deleted andset to faulted ok",
+                        "phandom disk {} un-deleted and set to faulted ok",
                         disk.id(),
                     );
                     phantom_disk_deleted_ok += 1;
                 }
             }
 
-            warn!(&log, "phantom disk task done");
             json!({
                 "phantom_disk_deleted_ok": phantom_disk_deleted_ok,
                 "phantom_disk_deleted_err": phantom_disk_deleted_err,
diff --git a/nexus/src/app/background/tasks/physical_disk_adoption.rs b/nexus/src/app/background/tasks/physical_disk_adoption.rs
index f3b9e8ac62..b1eceed0b6 100644
--- a/nexus/src/app/background/tasks/physical_disk_adoption.rs
+++ b/nexus/src/app/background/tasks/physical_disk_adoption.rs
@@ -96,8 +96,6 @@ impl BackgroundTask for PhysicalDiskAdoption {
             }
 
             let mut disks_added = 0;
-            let log = &opctx.log;
-            warn!(&log, "physical disk adoption task started");
 
             let collection_id = *self.rx_inventory_collection.borrow();
             let Some(collection_id) = collection_id else {
@@ -171,7 +169,6 @@ impl BackgroundTask for PhysicalDiskAdoption {
                 );
             }
 
-            warn!(&log, "physical disk adoption task done");
             json!({
                 "physical_disks_added": disks_added,
             })
diff --git a/nexus/src/app/background/tasks/region_replacement.rs b/nexus/src/app/background/tasks/region_replacement.rs
index f852f21734..ba0e7f86fb 100644
--- a/nexus/src/app/background/tasks/region_replacement.rs
+++ b/nexus/src/app/background/tasks/region_replacement.rs
@@ -61,7 +61,6 @@ impl BackgroundTask for RegionReplacementDetector {
     ) -> BoxFuture<'a, serde_json::Value> {
         async {
             let log = &opctx.log;
-            warn!(&log, "region replacement task started");
 
             let mut ok = 0;
             let mut err = 0;
@@ -182,8 +181,6 @@ impl BackgroundTask for RegionReplacementDetector {
                 }
             }
 
-            warn!(&log, "region replacement task done");
-
             json!({
                 "region_replacement_started_ok": ok,
                 "region_replacement_started_err": err,
diff --git a/nexus/src/app/background/tasks/region_replacement_driver.rs b/nexus/src/app/background/tasks/region_replacement_driver.rs
index 284ed2c368..02db86eab3 100644
--- a/nexus/src/app/background/tasks/region_replacement_driver.rs
+++ b/nexus/src/app/background/tasks/region_replacement_driver.rs
@@ -227,16 +227,11 @@ impl BackgroundTask for RegionReplacementDriver {
         opctx: &'a OpContext,
     ) -> BoxFuture<'a, serde_json::Value> {
         async {
-            let log = &opctx.log;
-            info!(&log, "region replacement driver task started");
-
             let mut status = RegionReplacementDriverStatus::default();
 
             self.drive_running_replacements_forward(opctx, &mut status).await;
             self.complete_done_replacements(opctx, &mut status).await;
 
-            info!(&log, "region replacement driver task done");
-
             json!(status)
         }
         .boxed()
diff --git a/nexus/src/app/background/tasks/region_snapshot_replacement_garbage_collect.rs b/nexus/src/app/background/tasks/region_snapshot_replacement_garbage_collect.rs
index 4c66c166ff..77dc87c060 100644
--- a/nexus/src/app/background/tasks/region_snapshot_replacement_garbage_collect.rs
+++ b/nexus/src/app/background/tasks/region_snapshot_replacement_garbage_collect.rs
@@ -129,12 +129,6 @@ impl BackgroundTask for RegionSnapshotReplacementGarbageCollect {
         opctx: &'a OpContext,
     ) -> BoxFuture<'a, serde_json::Value> {
         async move {
-            let log = &opctx.log;
-            info!(
-                &log,
-                "region snapshot replacement garbage collect task started",
-            );
-
             let mut status =
                 RegionSnapshotReplacementGarbageCollectStatus::default();
 
@@ -144,11 +138,6 @@ impl BackgroundTask for RegionSnapshotReplacementGarbageCollect {
             )
             .await;
 
-            info!(
-                &log,
-                "region snapshot replacement garbage collect task done"
-            );
-
             json!(status)
         }
         .boxed()
diff --git a/nexus/src/app/background/tasks/region_snapshot_replacement_start.rs b/nexus/src/app/background/tasks/region_snapshot_replacement_start.rs
index 9bc66d48c8..1fdc17690d 100644
--- a/nexus/src/app/background/tasks/region_snapshot_replacement_start.rs
+++ b/nexus/src/app/background/tasks/region_snapshot_replacement_start.rs
@@ -232,9 +232,6 @@ impl BackgroundTask for RegionSnapshotReplacementDetector {
         opctx: &'a OpContext,
     ) -> BoxFuture<'a, serde_json::Value> {
         async {
-            let log = &opctx.log;
-            info!(&log, "region snapshot replacement start task started");
-
             let mut status = RegionSnapshotReplacementStartStatus::default();
 
             self.create_requests_for_region_snapshots_on_expunged_disks(
@@ -249,8 +246,6 @@ impl BackgroundTask for RegionSnapshotReplacementDetector {
             )
             .await;
 
-            info!(&log, "region snapshot replacement start task done");
-
             json!(status)
         }
         .boxed()
diff --git a/nexus/test-utils/src/lib.rs b/nexus/test-utils/src/lib.rs
index 3dcffb399b..ea46f2d017 100644
--- a/nexus/test-utils/src/lib.rs
+++ b/nexus/test-utils/src/lib.rs
@@ -4,6 +4,7 @@
 
 //! Integration testing facilities for Nexus
 
+#[cfg(feature = "omicron-dev")]
 use anyhow::Context;
 use anyhow::Result;
 use camino::Utf8Path;
diff --git a/oximeter/schema/Cargo.toml b/oximeter/schema/Cargo.toml
index dd57660ade..fe2e28705a 100644
--- a/oximeter/schema/Cargo.toml
+++ b/oximeter/schema/Cargo.toml
@@ -8,10 +8,13 @@ license = "MPL-2.0"
 workspace = true
 
 [dependencies]
+anyhow.workspace = true
 chrono.workspace = true
+clap.workspace = true
 heck.workspace = true
 omicron-workspace-hack.workspace = true
 oximeter-types.workspace = true
+prettyplease.workspace = true
 proc-macro2.workspace = true
 quote.workspace = true
 schemars.workspace = true
diff --git a/oximeter/oximeter/src/bin/oximeter-schema.rs b/oximeter/schema/src/bin/oximeter-schema.rs
similarity index 100%
rename from oximeter/oximeter/src/bin/oximeter-schema.rs
rename to oximeter/schema/src/bin/oximeter-schema.rs
diff --git a/tools/console_version b/tools/console_version
index 4f67064733..994d30396b 100644
--- a/tools/console_version
+++ b/tools/console_version
@@ -1,2 +1,2 @@
-COMMIT="17ae890c68a5277fbefe773694e790a8f1b178b4"
-SHA2="273a31ba14546305bfafeb9aedb2d9a7530328a0359cda363380c9ca3240b948"
+COMMIT="33b7a505a222b258a155636e8ee79c7ee3c132d2"
+SHA2="f9089e18d52d7a54149b364a0b3ae4efba421c13eca6f7752a23b74dc3fa1a8e"