diff --git a/stacks/dbaas/modules/dbaas/main.tf b/stacks/dbaas/modules/dbaas/main.tf
index 1b43b475..d9742e2d 100644
--- a/stacks/dbaas/modules/dbaas/main.tf
+++ b/stacks/dbaas/modules/dbaas/main.tf
@@ -341,8 +341,8 @@ resource "kubernetes_cron_job_v1" "mysql-backup" {
               command = ["/bin/bash", "-c", <<-EOT
                 set -euxo pipefail
                 _t0=$(date +%s)
-                _rb0=$(awk '/^read_bytes/{print $2}' /proc/self/io 2>/dev/null || echo 0)
-                _wb0=$(awk '/^write_bytes/{print $2}' /proc/self/io 2>/dev/null || echo 0)
+                _rb0=$(awk '/^read_bytes/{print $2}' /proc/$$/io 2>/dev/null || echo 0)
+                _wb0=$(awk '/^write_bytes/{print $2}' /proc/$$/io 2>/dev/null || echo 0)
 
                 export now=$(date +"%Y_%m_%d_%H_%M")
                 mysqldump --all-databases -u root --host mysql.dbaas.svc.cluster.local | gzip -9 > /backup/dump_$now.sql.gz
@@ -353,8 +353,8 @@ resource "kubernetes_cron_job_v1" "mysql-backup" {
                 find . -name "dump_*.sql" -type f -mtime +14 -delete  # clean up old uncompressed
 
                 _dur=$(($(date +%s) - _t0))
-                _rb1=$(awk '/^read_bytes/{print $2}' /proc/self/io 2>/dev/null || echo 0)
-                _wb1=$(awk '/^write_bytes/{print $2}' /proc/self/io 2>/dev/null || echo 0)
+                _rb1=$(awk '/^read_bytes/{print $2}' /proc/$$/io 2>/dev/null || echo 0)
+                _wb1=$(awk '/^write_bytes/{print $2}' /proc/$$/io 2>/dev/null || echo 0)
                 echo "=== Backup IO Stats ==="
                 echo "duration: $${_dur}s"
                 echo "read:    $(( (_rb1 - _rb0) / 1048576 )) MiB"
@@ -1097,8 +1097,8 @@ resource "kubernetes_cron_job_v1" "postgresql-backup" {
               command = ["/bin/bash", "-c", <<-EOT
                 set -euxo pipefail
                 _t0=$(date +%s)
-                _rb0=$(awk '/^read_bytes/{print $2}' /proc/self/io 2>/dev/null || echo 0)
-                _wb0=$(awk '/^write_bytes/{print $2}' /proc/self/io 2>/dev/null || echo 0)
+                _rb0=$(awk '/^read_bytes/{print $2}' /proc/$$/io 2>/dev/null || echo 0)
+                _wb0=$(awk '/^write_bytes/{print $2}' /proc/$$/io 2>/dev/null || echo 0)
 
                 export now=$(date +"%Y_%m_%d_%H_%M")
                 PGPASSWORD=$PGPASSWORD pg_dumpall -h postgresql.dbaas -U postgres | gzip -9 > /backup/dump_$now.sql.gz
@@ -1109,8 +1109,8 @@ resource "kubernetes_cron_job_v1" "postgresql-backup" {
                 find . -name "dump_*.sql" -type f -mtime +14 -delete  # clean up old uncompressed
 
                 _dur=$(($(date +%s) - _t0))
-                _rb1=$(awk '/^read_bytes/{print $2}' /proc/self/io 2>/dev/null || echo 0)
-                _wb1=$(awk '/^write_bytes/{print $2}' /proc/self/io 2>/dev/null || echo 0)
+                _rb1=$(awk '/^read_bytes/{print $2}' /proc/$$/io 2>/dev/null || echo 0)
+                _wb1=$(awk '/^write_bytes/{print $2}' /proc/$$/io 2>/dev/null || echo 0)
                 echo "=== Backup IO Stats ==="
                 echo "duration: $${_dur}s"
                 echo "read:    $(( (_rb1 - _rb0) / 1048576 )) MiB"
diff --git a/stacks/immich/main.tf b/stacks/immich/main.tf
index 40174d62..3c5614db 100644
--- a/stacks/immich/main.tf
+++ b/stacks/immich/main.tf
@@ -685,8 +685,8 @@ resource "kubernetes_cron_job_v1" "postgresql-backup" {
               image = "postgres:16.4-bullseye"
               command = ["/bin/sh", "-c", <<-EOT
                 _t0=$(date +%s)
-                _rb0=$(awk '/^read_bytes/{print $2}' /proc/self/io 2>/dev/null || echo 0)
-                _wb0=$(awk '/^write_bytes/{print $2}' /proc/self/io 2>/dev/null || echo 0)
+                _rb0=$(awk '/^read_bytes/{print $2}' /proc/$$/io 2>/dev/null || echo 0)
+                _wb0=$(awk '/^write_bytes/{print $2}' /proc/$$/io 2>/dev/null || echo 0)
 
                 export now=$(date +"%Y_%m_%d_%H_%M")
                 pg_dumpall  -h immich-postgresql -U immich > /backup/dump_$now.sql
@@ -696,8 +696,8 @@ resource "kubernetes_cron_job_v1" "postgresql-backup" {
                 find . -name "dump_*.sql" -type f -mtime +14 -delete # 14 day retention of backups
 
                 _dur=$(($(date +%s) - _t0))
-                _rb1=$(awk '/^read_bytes/{print $2}' /proc/self/io 2>/dev/null || echo 0)
-                _wb1=$(awk '/^write_bytes/{print $2}' /proc/self/io 2>/dev/null || echo 0)
+                _rb1=$(awk '/^read_bytes/{print $2}' /proc/$$/io 2>/dev/null || echo 0)
+                _wb1=$(awk '/^write_bytes/{print $2}' /proc/$$/io 2>/dev/null || echo 0)
                 echo "=== Backup IO Stats ==="
                 echo "duration: $${_dur}s"
                 echo "read:    $(( (_rb1 - _rb0) / 1048576 )) MiB"
diff --git a/stacks/infra-maintenance/modules/infra-maintenance/main.tf b/stacks/infra-maintenance/modules/infra-maintenance/main.tf
index 00d1c920..4f39bc04 100644
--- a/stacks/infra-maintenance/modules/infra-maintenance/main.tf
+++ b/stacks/infra-maintenance/modules/infra-maintenance/main.tf
@@ -105,8 +105,8 @@ resource "kubernetes_cron_job_v1" "backup-etcd" {
               args = [<<-EOT
                 set -eu
                 _t0=$(date +%s)
-                _rb0=$(awk '/^read_bytes/{print $2}' /proc/self/io 2>/dev/null || echo 0)
-                _wb0=$(awk '/^write_bytes/{print $2}' /proc/self/io 2>/dev/null || echo 0)
+                _rb0=$(awk '/^read_bytes/{print $2}' /proc/$$/io 2>/dev/null || echo 0)
+                _wb0=$(awk '/^write_bytes/{print $2}' /proc/$$/io 2>/dev/null || echo 0)
 
                 TIMESTAMP=$(date +%Y%m%d-%H%M%S)
                 ETCDCTL_API=3 etcdctl \
@@ -117,8 +117,8 @@ resource "kubernetes_cron_job_v1" "backup-etcd" {
                   snapshot save /backup/etcd-snapshot-$TIMESTAMP.db
 
                 _dur=$(($(date +%s) - _t0))
-                _rb1=$(awk '/^read_bytes/{print $2}' /proc/self/io 2>/dev/null || echo 0)
-                _wb1=$(awk '/^write_bytes/{print $2}' /proc/self/io 2>/dev/null || echo 0)
+                _rb1=$(awk '/^read_bytes/{print $2}' /proc/$$/io 2>/dev/null || echo 0)
+                _wb1=$(awk '/^write_bytes/{print $2}' /proc/$$/io 2>/dev/null || echo 0)
                 echo "=== Backup IO Stats ==="
                 echo "duration: $${_dur}s"
                 echo "read:    $(( (_rb1 - _rb0) / 1048576 )) MiB"
diff --git a/stacks/redis/modules/redis/main.tf b/stacks/redis/modules/redis/main.tf
index 15ab3097..49b19fda 100644
--- a/stacks/redis/modules/redis/main.tf
+++ b/stacks/redis/modules/redis/main.tf
@@ -284,8 +284,8 @@ resource "kubernetes_cron_job_v1" "redis-backup" {
               command = ["/bin/sh", "-c", <<-EOT
                 set -eux
                 _t0=$(date +%s)
-                _rb0=$(awk '/^read_bytes/{print $2}' /proc/self/io 2>/dev/null || echo 0)
-                _wb0=$(awk '/^write_bytes/{print $2}' /proc/self/io 2>/dev/null || echo 0)
+                _rb0=$(awk '/^read_bytes/{print $2}' /proc/$$/io 2>/dev/null || echo 0)
+                _wb0=$(awk '/^write_bytes/{print $2}' /proc/$$/io 2>/dev/null || echo 0)
 
                 TIMESTAMP=$(date +%Y%m%d-%H%M)
                 # Trigger a fresh RDB save on the master
@@ -297,8 +297,8 @@ resource "kubernetes_cron_job_v1" "redis-backup" {
                 find /backup -name 'redis-*.rdb' -type f -mtime +28 -delete
 
                 _dur=$(($(date +%s) - _t0))
-                _rb1=$(awk '/^read_bytes/{print $2}' /proc/self/io 2>/dev/null || echo 0)
-                _wb1=$(awk '/^write_bytes/{print $2}' /proc/self/io 2>/dev/null || echo 0)
+                _rb1=$(awk '/^read_bytes/{print $2}' /proc/$$/io 2>/dev/null || echo 0)
+                _wb1=$(awk '/^write_bytes/{print $2}' /proc/$$/io 2>/dev/null || echo 0)
                 echo "=== Backup IO Stats ==="
                 echo "duration: $${_dur}s"
                 echo "read:    $(( (_rb1 - _rb0) / 1048576 )) MiB"
diff --git a/stacks/vault/main.tf b/stacks/vault/main.tf
index e4f58988..bb777571 100644
--- a/stacks/vault/main.tf
+++ b/stacks/vault/main.tf
@@ -267,8 +267,8 @@ resource "kubernetes_cron_job_v1" "vault_backup" {
               args = [join("", [
                 "set -eu; ",
                 "_t0=$(date +%s); ",
-                "_rb0=$(awk '/^read_bytes/{print $2}' /proc/self/io 2>/dev/null || echo 0); ",
-                "_wb0=$(awk '/^write_bytes/{print $2}' /proc/self/io 2>/dev/null || echo 0); ",
+                "_rb0=$(awk '/^read_bytes/{print $2}' /proc/$$/io 2>/dev/null || echo 0); ",
+                "_wb0=$(awk '/^write_bytes/{print $2}' /proc/$$/io 2>/dev/null || echo 0); ",
                 "export VAULT_ADDR=http://vault-active.vault.svc.cluster.local:8200 && ",
                 "export VAULT_TOKEN=$(cat /vault/token/vault-root-token) && ",
                 "TIMESTAMP=$(date +%Y%m%d-%H%M%S) && ",
@@ -276,8 +276,8 @@ resource "kubernetes_cron_job_v1" "vault_backup" {
                 "find /backup -name '*.db' -mtime +30 -delete && ",
                 "echo \"Backup done: vault-raft-$TIMESTAMP.db\" && ls -lh /backup/ && ",
                 "_dur=$(( $(date +%s) - _t0 )); ",
-                "_rb1=$(awk '/^read_bytes/{print $2}' /proc/self/io 2>/dev/null || echo 0); ",
-                "_wb1=$(awk '/^write_bytes/{print $2}' /proc/self/io 2>/dev/null || echo 0); ",
+                "_rb1=$(awk '/^read_bytes/{print $2}' /proc/$$/io 2>/dev/null || echo 0); ",
+                "_wb1=$(awk '/^write_bytes/{print $2}' /proc/$$/io 2>/dev/null || echo 0); ",
                 "echo '=== Backup IO Stats ==='; ",
                 "echo \"duration: $${_dur}s\"; ",
                 "echo \"read:    $(( (_rb1 - _rb0) / 1048576 )) MiB\"; ",
diff --git a/stacks/vaultwarden/modules/vaultwarden/main.tf b/stacks/vaultwarden/modules/vaultwarden/main.tf
index bc1ea77c..b909b005 100644
--- a/stacks/vaultwarden/modules/vaultwarden/main.tf
+++ b/stacks/vaultwarden/modules/vaultwarden/main.tf
@@ -248,8 +248,8 @@ resource "kubernetes_cron_job_v1" "vaultwarden-backup" {
                 set -euxo pipefail
                 apk add --no-cache sqlite
                 _t0=$(date +%s)
-                _rb0=$(awk '/^read_bytes/{print $2}' /proc/self/io 2>/dev/null || echo 0)
-                _wb0=$(awk '/^write_bytes/{print $2}' /proc/self/io 2>/dev/null || echo 0)
+                _rb0=$(awk '/^read_bytes/{print $2}' /proc/$$/io 2>/dev/null || echo 0)
+                _wb0=$(awk '/^write_bytes/{print $2}' /proc/$$/io 2>/dev/null || echo 0)
 
                 now=$(date +"%Y_%m_%d_%H_%M")
                 # Pre-flight: verify source DB is healthy before backing up
@@ -275,8 +275,8 @@ resource "kubernetes_cron_job_v1" "vaultwarden-backup" {
                 find /backup -maxdepth 1 -mindepth 1 -type d -mtime +30 -exec rm -rf {} +
 
                 _dur=$(($(date +%s) - _t0))
-                _rb1=$(awk '/^read_bytes/{print $2}' /proc/self/io 2>/dev/null || echo 0)
-                _wb1=$(awk '/^write_bytes/{print $2}' /proc/self/io 2>/dev/null || echo 0)
+                _rb1=$(awk '/^read_bytes/{print $2}' /proc/$$/io 2>/dev/null || echo 0)
+                _wb1=$(awk '/^write_bytes/{print $2}' /proc/$$/io 2>/dev/null || echo 0)
                 echo "=== Backup IO Stats ==="
                 echo "duration: $${_dur}s"
                 echo "read:    $(( (_rb1 - _rb0) / 1048576 )) MiB"