diff --git a/dist/rules/blackbox/blackbox-exporter.yml b/dist/rules/blackbox/blackbox-exporter.yml
index 6d101db..7eb0a74 100644
--- a/dist/rules/blackbox/blackbox-exporter.yml
+++ b/dist/rules/blackbox/blackbox-exporter.yml
@@ -50,13 +50,13 @@ groups:
         summary: Blackbox SSL certificate will expire soon (instance {{ $labels.instance }})
         description: "SSL certificate expires in less than 20 days\n  VALUE = {{ $value }}\n  LABELS = {{ $labels }}"
 
-    - alert: BlackboxSslCertificateWillExpireSoon
+    - alert: BlackboxSslCertificateWillExpireVerySoon
       expr: '0 <= round((last_over_time(probe_ssl_earliest_cert_expiry[10m]) - time()) / 86400, 0.1) < 3'
       for: 0m
       labels:
         severity: critical
       annotations:
-        summary: Blackbox SSL certificate will expire soon (instance {{ $labels.instance }})
+        summary: Blackbox SSL certificate will expire very soon (instance {{ $labels.instance }})
         description: "SSL certificate expires in less than 3 days\n  VALUE = {{ $value }}\n  LABELS = {{ $labels }}"
 
     # For probe_ssl_earliest_cert_expiry to be exposed after expiration, you
diff --git a/dist/rules/host-and-hardware/node-exporter.yml b/dist/rules/host-and-hardware/node-exporter.yml
index 007b059..26898e6 100644
--- a/dist/rules/host-and-hardware/node-exporter.yml
+++ b/dist/rules/host-and-hardware/node-exporter.yml
@@ -51,14 +51,14 @@ groups:
         summary: Host unusual network throughput out (instance {{ $labels.instance }})
         description: "Host transmit bandwidth is high (>80%)\n  VALUE = {{ $value }}\n  LABELS = {{ $labels }}"
 
-    - alert: HostUnusualDiskReadRate
+    - alert: HostDiskIoUtilizationHigh
       expr: '(rate(node_disk_io_time_seconds_total[5m]) > .80)'
       for: 0m
       labels:
         severity: warning
       annotations:
-        summary: Host unusual disk read rate (instance {{ $labels.instance }})
-        description: "Disk is too busy (IO wait > 80%)\n  VALUE = {{ $value }}\n  LABELS = {{ $labels }}"
+        summary: Host disk IO utilization high (instance {{ $labels.instance }})
+        description: "Disk utilization is high (> 80%)\n  VALUE = {{ $value }}\n  LABELS = {{ $labels }}"
 
     # Please add ignored mountpoints in node_exporter parameters like
     # "--collector.filesystem.ignored-mount-points=^/(sys|proc|dev|run)($|/)".
diff --git a/dist/rules/minio/embedded-exporter.yml b/dist/rules/minio/embedded-exporter.yml
index ea55791..e0f53bd 100644
--- a/dist/rules/minio/embedded-exporter.yml
+++ b/dist/rules/minio/embedded-exporter.yml
@@ -24,7 +24,7 @@ groups:
         description: "Minio cluster node disk is offline\n  VALUE = {{ $value }}\n  LABELS = {{ $labels }}"
 
     - alert: MinioDiskSpaceUsage
-      expr: 'disk_storage_available / disk_storage_total * 100 < 10'
+      expr: 'minio_cluster_capacity_raw_free_bytes / minio_cluster_capacity_raw_total_bytes * 100 < 10'
       for: 0m
       labels:
         severity: warning
diff --git a/dist/rules/postgresql/postgres-exporter.yml b/dist/rules/postgresql/postgres-exporter.yml
index 75e71b4..a8b5846 100644
--- a/dist/rules/postgresql/postgres-exporter.yml
+++ b/dist/rules/postgresql/postgres-exporter.yml
@@ -141,7 +141,7 @@ groups:
         description: "PostgreSQL dead tuples is too large\n  VALUE = {{ $value }}\n  LABELS = {{ $labels }}"
 
     - alert: PostgresqlConfigurationChanged
-      expr: '{__name__=~"pg_settings_.*"} != ON(__name__, instance) {__name__=~"pg_settings_([^t]|t[^r]|tr[^a]|tra[^n]|tran[^s]|trans[^a]|transa[^c]|transac[^t]|transact[^i]|transacti[^o]|transactio[^n]|transaction[^_]|transaction_[^r]|transaction_r[^e]|transaction_re[^a]|transaction_rea[^d]|transaction_read[^_]|transaction_read_[^o]|transaction_read_o[^n]|transaction_read_on[^l]|transaction_read_onl[^y]).*"} OFFSET 5m'
+      expr: '{__name__=~"pg_settings_.*",__name__!="pg_settings_transaction_read_only"} != ON(__name__, instance) {__name__=~"pg_settings_.*",__name__!="pg_settings_transaction_read_only"} OFFSET 5m'
       for: 0m
       labels:
         severity: info
@@ -153,7 +153,7 @@ groups:
       expr: 'sum(pg_stat_ssl_compression) > 0'
       for: 0m
       labels:
-        severity: critical
+        severity: warning
       annotations:
         summary: Postgresql SSL compression active (instance {{ $labels.instance }})
         description: "Database allows connections with SSL compression enabled. This may add significant jitter in replication delay. Replicas should turn off SSL compression via `sslcompression=0` in `recovery.conf`.\n  VALUE = {{ $value }}\n  LABELS = {{ $labels }}"