From 6c4ae7356695db3e99f7de16b0e5a11adb97d23e Mon Sep 17 00:00:00 2001
From: Tomi Eckert <tomivoook23@gmail.com>
Date: Thu, 25 Sep 2025 17:31:31 +0200
Subject: [PATCH] ddd HANA backup monitoring

---
 monitor/monitor.conf |  2 ++
 monitor/monitor.sh   | 32 +++++++++++++++++++++++++++++++-
 packages.conf        |  2 +-
 3 files changed, 34 insertions(+), 2 deletions(-)

diff --git a/monitor/monitor.conf b/monitor/monitor.conf
index 7973382..70d161d 100644
--- a/monitor/monitor.conf
+++ b/monitor/monitor.conf
@@ -27,6 +27,8 @@ DISK_USAGE_THRESHOLD=80
 TRUNCATED_PERCENTAGE_THRESHOLD=50
 # Percentage of 'Free' log segments below which an alert is triggered
 FREE_PERCENTAGE_THRESHOLD=25
+# Maximum age of the last successful full data backup in hours.
+BACKUP_THRESHOLD_HOURS=25
 
 # --- Monitored Directories ---
 # List of directories to check for disk usage (space-separated)
diff --git a/monitor/monitor.sh b/monitor/monitor.sh
index 6d947e5..bdf72cb 100644
--- a/monitor/monitor.sh
+++ b/monitor/monitor.sh
@@ -1,5 +1,5 @@
 #!/bin/bash
-# Version: 1.0.5
+# Version: 1.1.0
 # =============================================================================
 # SAP HANA Monitoring Script
 #
@@ -123,5 +123,35 @@ if (( $(echo "$free_percentage < $FREE_PERCENTAGE_THRESHOLD" | bc -l) )); then
     send_notification "HANA Log Segment Alert" "🚨 Alert: Only ${free_percentage}% of HANA log segments are in 'Free' state."
 fi
 
+echo "ℹ️ Checking last successful data backup status..."
+
+# Query to get the start time of the most recent successful complete data backup
+last_backup_date=$(hdbsql -U "$HANA_USERKEY" -j -a -x \
+    "SELECT TOP 1 SYS_START_TIME FROM M_BACKUP_CATALOG WHERE ENTRY_TYPE_NAME = 'complete data backup' AND STATE_NAME = 'successful' ORDER BY SYS_START_TIME DESC" 2>/dev/null | tr -d "\"" | sed 's/\..*//') # sed removes fractional seconds
+
+if [[ -z "$last_backup_date" ]]; then
+    # No successful backup found at all
+    local message="🚨 Critical: No successful complete data backup found for ${COMPANY_NAME} HANA."
+    echo "$message"
+    send_notification "HANA Backup Alert" "$message"
+    return
+fi
+
+# Convert dates to epoch seconds for comparison
+last_backup_epoch=$(date -d "$last_backup_date" +%s)
+current_epoch=$(date +%s)
+threshold_seconds=$((BACKUP_THRESHOLD_HOURS * 3600))
+
+age_seconds=$((current_epoch - last_backup_epoch))
+age_hours=$((age_seconds / 3600))
+
+if (( age_seconds > threshold_seconds )); then
+    local message="🚨 Critical: Last successful HANA backup for ${COMPANY_NAME} is ${age_hours} hours old, which exceeds the threshold of ${BACKUP_THRESHOLD_HOURS} hours. Last backup was on: ${last_backup_date}."
+    echo "$message"
+    send_notification "HANA Backup Alert" "$message"
+else
+    echo "✅ Success! Last successful backup is ${age_hours} hours old (Threshold: ${BACKUP_THRESHOLD_HOURS} hours)."
+fi
+
 echo "✅ Success! HANA monitoring check complete."
 
diff --git a/packages.conf b/packages.conf
index 7ea45de..e97434d 100644
--- a/packages.conf
+++ b/packages.conf
@@ -10,7 +10,7 @@ declare -A SCRIPT_PACKAGES
 # Format: short_name="Display Name|Version|Description|URL1 URL2..."
 SCRIPT_PACKAGES["aurora"]="Aurora Suite|2.1.0|A collection of scripts for managing Aurora database instances.|https://git.technopunk.space/tomi/Scripts/raw/branch/main/aurora/aurora.sh https://git.technopunk.space/tomi/Scripts/raw/branch/main/aurora/aurora.conf"
 SCRIPT_PACKAGES["backup"]="Backup Suite|1.0.5|A comprehensive script for backing up system files and databases.|https://git.technopunk.space/tomi/Scripts/raw/branch/main/backup/backup.sh https://git.technopunk.space/tomi/Scripts/raw/branch/main/backup/backup.conf"
-SCRIPT_PACKAGES["monitor"]="Monitor Suite|1.0.5|Scripts for monitoring system health and performance metrics.|https://git.technopunk.space/tomi/Scripts/raw/branch/main/monitor/monitor.sh https://git.technopunk.space/tomi/Scripts/raw/branch/main/monitor/monitor.conf"
+SCRIPT_PACKAGES["monitor"]="Monitor Suite|1.1.0|Scripts for monitoring system health and performance metrics.|https://git.technopunk.space/tomi/Scripts/raw/branch/main/monitor/monitor.sh https://git.technopunk.space/tomi/Scripts/raw/branch/main/monitor/monitor.conf"
 SCRIPT_PACKAGES["keymanager"]="Key Manager|1.2.1|A utility for managing HDB user keys for SAP HANA.|https://git.technopunk.space/tomi/Scripts/raw/branch/main/keymanager.sh"
 SCRIPT_PACKAGES["cleaner"]="File Cleaner|1.1.0|A simple script to clean up temporary files and logs.|https://git.technopunk.space/tomi/Scripts/raw/branch/main/cleaner.sh"
 SCRIPT_PACKAGES["hanatool"]="HANA Tool|1.5.0|A command-line tool for various SAP HANA administration tasks.|https://git.technopunk.space/tomi/Scripts/raw/branch/main/hanatool.sh"