initial commit

2026-03-12 20:12:20 +01:00
commit e7c4142294
9 changed files with 904 additions and 0 deletions
--- a/hana_disk.sh
+++ b/hana_disk.sh
@@ -0,0 +1,84 @@
+#!/bin/bash
+# =============================================================================
+# SAP HANA Disk Space Monitoring Script
+# Checks disk usage for configured directories with auto-cleanup capability
+# =============================================================================
+
+SCRIPT_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" &>/dev/null && pwd)"
+SCRIPT_NAME="hana_disk"
+
+# Load configuration
+source "${SCRIPT_DIR}/hana.conf"
+source "${SCRIPT_DIR}/hana_lib.sh"
+
+# Acquire lock
+LOCK_FILE=$(acquire_lock "$SCRIPT_NAME")
+if [ $? -ne 0 ]; then
+    exit 1
+fi
+trap 'release_lock "$LOCK_FILE"' EXIT
+
+log_message "$SCRIPT_NAME" "Starting disk usage check..."
+
+# Track overall status
+ALERT_COUNT=0
+TOTAL_DIRS=0
+CLEANUP_PERFORMED=0
+
+for dir in "${DIRECTORIES_TO_MONITOR[@]}"; do
+    TOTAL_DIRS=$((TOTAL_DIRS + 1))
+    
+    # Check if directory exists
+    if [ ! -d "$dir" ]; then
+        log_message "$SCRIPT_NAME" "WARNING: Directory '$dir' not found. Skipping."
+        send_notification_if_changed "$SCRIPT_NAME" "disk_dir_not_found_${dir//\//_}" "HANA Disk Warning" "Directory '$dir' not found." "true" "DIR_NOT_FOUND"
+        ALERT_COUNT=$((ALERT_COUNT + 1))
+        continue
+    fi
+    
+    # Get disk usage percentage
+    usage=$(get_disk_usage_percentage "$dir")
+    
+    if [ -z "$usage" ] || [ "$usage" -eq 0 ]; then
+        log_message "$SCRIPT_NAME" "WARNING: Could not determine disk usage for '$dir'. Skipping."
+        continue
+    fi
+    
+    log_message "$SCRIPT_NAME" "Directory ${dir} is at ${usage}%"
+    
+    # Check if usage exceeds threshold
+    if [ "$usage" -gt "$DISK_USAGE_THRESHOLD" ]; then
+        log_message "$SCRIPT_NAME" "ALERT: ${dir} usage is at ${usage}% which is above the ${DISK_USAGE_THRESHOLD}% threshold."
+        
+        # Attempt auto-cleanup if enabled
+        if [ "$AUTO_CLEANUP_ENABLED" == "true" ]; then
+            log_message "$SCRIPT_NAME" "Attempting auto-cleanup for '${dir}'..."
+            mount_point=$(get_mount_point "$dir")
+            
+            if auto_cleanup "$mount_point" "$MIN_FREE_SPACE_AFTER_CLEANUP"; then
+                CLEANUP_PERFORMED=$((CLEANUP_PERFORMED + 1))
+                new_usage=$(get_disk_usage_percentage "$dir")
+                log_message "$SCRIPT_NAME" "After cleanup, ${dir} usage is at ${new_usage}%"
+                usage=$new_usage
+            else
+                log_message "$SCRIPT_NAME" "Auto-cleanup failed or no files to clean for '${dir}'"
+            fi
+        fi
+        
+        # Send notification with final usage after cleanup attempt
+        send_notification_if_changed "$SCRIPT_NAME" "disk_usage_${dir//\//_}" "HANA Disk" "Disk usage for ${dir} is at ${usage}%." "true" "${usage}%"
+        ALERT_COUNT=$((ALERT_COUNT + 1))
+    else
+        # Send OK notification only if state changed from alert
+        send_notification_if_changed "$SCRIPT_NAME" "disk_usage_${dir//\//_}" "HANA Disk" "Disk usage for ${dir} is at ${usage}% (below threshold)." "false" "OK"
+    fi
+done
+
+# Summary logging
+log_message "$SCRIPT_NAME" "Disk check complete. Total: ${TOTAL_DIRS} dirs, ${ALERT_COUNT} alerts, ${CLEANUP_PERFORMED} cleanups performed."
+
+# Exit with status based on alerts
+if [ "$ALERT_COUNT" -gt 0 ]; then
+    exit 1
+fi
+exit 0