399 lines
13 KiB
Bash
Executable File
399 lines
13 KiB
Bash
Executable File
#!/bin/bash
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# Disk Health Check Script for Alma Linux 9
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# Checks SSD TBW/lifespan and HDD health status
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SCRIPT_NAME=$(basename "$0")
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VERSION="2.1"
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# Color codes
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RED=$(tput setaf 1)
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GREEN=$(tput setaf 2)
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YELLOW=$(tput setaf 3)
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BLUE=$(tput setaf 4)
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CYAN=$(tput setaf 6)
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NC=$(tput sgr0)
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# Function to print colored output
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print_color() {
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local color=$1
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local message=$2
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echo -e "${color}${message}${NC}"
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}
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# Check if command exists
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command_exists() {
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command -v "$1" >/dev/null 2>&1
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}
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# Check dependencies
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check_dependencies() {
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local missing=()
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if ! command_exists smartctl; then
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missing+=("smartmontools")
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fi
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if ! command_exists bc; then
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missing+=("bc")
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fi
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if [[ ${#missing[@]} -gt 0 ]]; then
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print_color $RED "Error: Missing required packages: ${missing[*]}"
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echo "Install with: sudo dnf install ${missing[*]}"
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exit 1
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fi
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}
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# Function to get disk type
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get_disk_type() {
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local disk=$1
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local info=$(smartctl -i "$disk" 2>/dev/null)
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if echo "$info" | grep -q "Solid State Device"; then
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echo "SSD"
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elif echo "$info" | grep -q "Rotation Rate"; then
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echo "HDD"
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else
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echo "UNKNOWN"
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fi
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}
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# Function to calculate TBW for SSD
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calculate_tbw() {
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local raw_value=$1
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local sectors=$2
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if [[ -n "$sectors" && "$sectors" != "0" ]]; then
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local bytes=$((sectors * 512))
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local tbw=$(echo "scale=2; $bytes / 1000 / 1000 / 1000 / 1000" | bc 2>/dev/null || echo "0")
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echo "$tbw"
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elif [[ -n "$raw_value" && "$raw_value" != "0" ]]; then
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local tbw=$(echo "scale=2; $raw_value * 32 / 1000 / 1000" | bc 2>/dev/null || echo "0")
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echo "$tbw"
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else
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echo "0"
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fi
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}
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# Function to estimate SSD endurance based on model and capacity
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estimate_ssd_endurance() {
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local disk_model=$1
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local capacity_gb=$2
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# Enterprise SSDs typically have higher endurance
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if echo "$disk_model" | grep -qi "MTFDDAK480TDS\|MICRON\|INTEL\|SAMSUNG\|KIOXIA"; then
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# Enterprise SSDs
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if [[ $capacity_gb -ge 1000 ]]; then
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echo "1200" # 1.2PB for 1TB enterprise
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elif [[ $capacity_gb -ge 480 ]]; then
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echo "600" # 600TB for 480GB enterprise
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elif [[ $capacity_gb -ge 240 ]]; then
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echo "300" # 300TB for 240GB enterprise
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else
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echo "150" # 150TB for smaller enterprise
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fi
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else
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# Consumer SSDs
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if [[ $capacity_gb -ge 1000 ]]; then
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echo "600" # 600TB for 1TB consumer
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elif [[ $capacity_gb -ge 480 ]]; then
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echo "300" # 300TB for 480GB consumer
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elif [[ $capacity_gb -ge 240 ]]; then
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echo "150" # 150TB for 240GB consumer
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elif [[ $capacity_gb -ge 120 ]]; then
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echo "80" # 80TB for 120GB consumer
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else
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echo "40" # 40TB for smaller drives
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fi
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fi
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}
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# Function to estimate SSD lifespan with TBW remaining
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estimate_ssd_lifespan() {
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local power_on_hours=$1
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local tbw_used=$2
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local disk_model=$3
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local capacity_gb=$4
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if [[ -z "$power_on_hours" || "$power_on_hours" -eq 0 ]]; then
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echo "Unknown||Unknown"
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return
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fi
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local estimated_endurance=$(estimate_ssd_endurance "$disk_model" "$capacity_gb")
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local tbw_remaining=$(echo "scale=2; $estimated_endurance - $tbw_used" | bc 2>/dev/null || echo "0")
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if [[ $(echo "$tbw_used > 0" | bc 2>/dev/null) -eq 1 ]]; then
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local lifespan_used=$(echo "scale=1; $tbw_used * 100 / $estimated_endurance" | bc 2>/dev/null || echo "0")
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local lifespan_remaining=$(echo "scale=1; 100 - $lifespan_used" | bc 2>/dev/null || echo "100")
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if [[ $(echo "$lifespan_used >= 80" | bc 2>/dev/null) -eq 1 ]]; then
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echo "${RED}${lifespan_remaining}%${NC}|${RED}${tbw_remaining} TB${NC}|High wear"
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elif [[ $(echo "$lifespan_used >= 50" | bc 2>/dev/null) -eq 1 ]]; then
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echo "${YELLOW}${lifespan_remaining}%${NC}|${YELLOW}${tbw_remaining} TB${NC}|Moderate wear"
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else
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echo "${GREEN}${lifespan_remaining}%${NC}|${GREEN}${tbw_remaining} TB${NC}|Healthy"
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fi
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else
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echo "Unknown|${estimated_endurance} TB|New"
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fi
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}
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# Function to estimate HDD lifespan
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estimate_hdd_lifespan() {
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local power_on_hours=$1
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local reallocated_sectors=$2
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local pending_sectors=$3
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if [[ -z "$power_on_hours" ]]; then
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echo "Unknown"
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return
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fi
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# Convert to integers
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power_on_hours=${power_on_hours:-0}
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reallocated_sectors=${reallocated_sectors:-0}
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pending_sectors=${pending_sectors:-0}
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if [[ "$pending_sectors" -gt 0 ]]; then
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echo "${RED}CRITICAL${NC} (Pending sectors: $pending_sectors)"
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elif [[ "$reallocated_sectors" -gt 100 ]]; then
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echo "${RED}< 6 months${NC} (High reallocated sectors: $reallocated_sectors)"
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elif [[ "$reallocated_sectors" -gt 10 ]]; then
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echo "${YELLOW}6-12 months${NC} (Reallocated sectors: $reallocated_sectors)"
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elif [[ "$power_on_hours" -gt 40000 ]]; then
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echo "${YELLOW}1-2 years${NC} (High usage: $power_on_hours hours)"
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elif [[ "$power_on_hours" -gt 25000 ]]; then
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echo "${GREEN}2-3 years${NC} (Moderate usage: $power_on_hours hours)"
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else
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echo "${GREEN}> 3 years${NC} (Low usage: $power_on_hours hours)"
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fi
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}
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# Function to check disk SMART capabilities
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check_smart_capability() {
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local disk=$1
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local info=$(smartctl -i "$disk" 2>/dev/null)
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if echo "$info" | grep -q "SMART support is: Available"; then
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if echo "$info" | grep -q "SMART support is: Enabled"; then
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echo "enabled"
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else
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echo "available"
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fi
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else
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echo "unavailable"
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fi
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}
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# Function to check a single disk
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check_disk() {
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local disk=$1
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print_color $CYAN "Checking disk: $disk"
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echo "=================================================="
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# Check if disk exists and is accessible
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if [[ ! -b "$disk" ]]; then
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print_color $RED "Error: $disk is not a valid block device"
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echo ""
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return
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fi
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# Check SMART capability
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local smart_status=$(check_smart_capability "$disk")
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if [[ "$smart_status" == "unavailable" ]]; then
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print_color $YELLOW "SMART not supported on $disk"
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echo ""
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return
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elif [[ "$smart_status" == "available" ]]; then
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print_color $YELLOW "SMART available but not enabled on $disk"
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echo "Enable with: smartctl -s on $disk"
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echo ""
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return
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fi
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# Get basic disk information
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local info=$(smartctl -i "$disk" 2>/dev/null)
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local health=$(smartctl -H "$disk" 2>/dev/null)
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local attributes=$(smartctl -A "$disk" 2>/dev/null)
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# Check if smartctl command succeeded
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if [[ $? -ne 0 ]]; then
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print_color $RED "Error: Cannot read SMART data from $disk"
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echo "You may need to run this script as root"
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echo ""
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return
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fi
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# Extract disk information
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local model=$(echo "$info" | grep "Device Model:" | cut -d: -f2 | sed 's/^[ \t]*//')
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local serial=$(echo "$info" | grep "Serial Number:" | cut -d: -f2 | sed 's/^[ \t]*//')
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local capacity=$(echo "$info" | grep "User Capacity:" | cut -d: -f2 | sed 's/^[ \t]*//' | cut -d'[' -f1)
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local firmware=$(echo "$info" | grep "Firmware Version:" | cut -d: -f2 | sed 's/^[ \t]*//')
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# Extract capacity in GB for endurance calculation
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local capacity_gb=0
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if echo "$capacity" | grep -qi "TB"; then
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capacity_gb=$(echo "$capacity" | grep -o '[0-9.]*' | head -1 | awk '{print $1 * 1000}' | bc 2>/dev/null | cut -d. -f1)
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else
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capacity_gb=$(echo "$capacity" | grep -o '[0-9.]*' | head -1 | cut -d. -f1)
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fi
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local disk_type=$(get_disk_type "$disk")
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local health_status=$(echo "$health" | grep "result:" | cut -d: -f2 | sed 's/^[ \t]*//' | head -1)
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# Extract SMART attributes
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local power_on_hours=$(echo "$attributes" | grep "Power_On_Hours" | awk '{print $10}' | head -1)
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local reallocated_sectors=$(echo "$attributes" | grep "Reallocated_Sector_Ct" | awk '{print $10}' | head -1)
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local pending_sectors=$(echo "$attributes" | grep "Current_Pending_Sector" | awk '{print $10}' | head -1)
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local total_written=$(echo "$attributes" | grep -E "Total_LBAs_Written|Host_Writes_32MiB" | awk '{print $10}' | head -1)
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local host_writes_32mib=$(echo "$attributes" | grep "Host_Writes_32MiB" | awk '{print $10}' | head -1)
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# Display basic information
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echo "Model: ${model:-Unknown}"
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echo "Serial: ${serial:-Unknown}"
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echo "Type: $disk_type"
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echo "Capacity: ${capacity:-Unknown}"
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echo "Firmware: ${firmware:-Unknown}"
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echo "Health: ${health_status:-Unknown}"
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echo "Power On Hours: ${power_on_hours:-Unknown}"
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# Disk type specific analysis
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if [[ "$disk_type" == "SSD" ]]; then
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local tbw_used=0
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if [[ -n "$total_written" && "$total_written" != "0" ]]; then
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tbw_used=$(calculate_tbw "" "$total_written")
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elif [[ -n "$host_writes_32mib" && "$host_writes_32mib" != "0" ]]; then
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tbw_used=$(calculate_tbw "$host_writes_32mib" "")
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fi
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echo "TBW Used: ${tbw_used} TB"
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local lifespan_info=$(estimate_ssd_lifespan "$power_on_hours" "$tbw_used" "$model" "$capacity_gb")
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local lifespan_percent=$(echo "$lifespan_info" | cut -d'|' -f1)
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local tbw_remaining=$(echo "$lifespan_info" | cut -d'|' -f2)
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local wear_status=$(echo "$lifespan_info" | cut -d'|' -f3)
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echo "TBW Remaining: $tbw_remaining"
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echo "Lifespan: $lifespan_percent ($wear_status)"
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elif [[ "$disk_type" == "HDD" ]]; then
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echo "Realloc Sectors: ${reallocated_sectors:-0}"
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echo "Pending Sectors: ${pending_sectors:-0}"
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local lifespan=$(estimate_hdd_lifespan "$power_on_hours" "${reallocated_sectors:-0}" "${pending_sectors:-0}")
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echo "Lifespan: $lifespan"
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else
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print_color $YELLOW "Limited information available for this disk type"
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fi
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echo ""
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}
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# Function to detect all disks
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detect_disks() {
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local disks=()
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# Check for SATA/SAS disks
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for disk in /dev/sd[a-z] /dev/sd[a-z][a-z]; do
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if [[ -b "$disk" ]]; then
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disks+=("$disk")
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fi
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done
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# Check for NVMe disks
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for disk in /dev/nvme[0-9]n[0-9] /dev/nvme[0-9]n[0-9]p[0-9]; do
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if [[ -b "$disk" ]]; then
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disks+=("$disk")
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fi
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done
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# Check for other disk types
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for disk in /dev/vd[a-z] /dev/xvd[a-z]; do
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if [[ -b "$disk" ]]; then
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disks+=("$disk")
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fi
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done
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echo "${disks[@]}"
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}
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# Main function
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main() {
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print_color $BLUE "Disk Health Check Script v$VERSION for Alma Linux 9"
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print_color $BLUE "===================================================="
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echo ""
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check_dependencies
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local disks=()
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# If specific disk provided, check only that disk
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if [[ $# -gt 0 ]]; then
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for disk in "$@"; do
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if [[ -b "$disk" ]]; then
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disks+=("$disk")
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else
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print_color $RED "Error: $disk is not a valid block device"
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fi
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done
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else
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# Auto-detect disks
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print_color $CYAN "Auto-detecting disks..."
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read -ra disks <<< "$(detect_disks)"
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fi
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if [[ ${#disks[@]} -eq 0 ]]; then
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print_color $RED "No disks found or accessible"
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echo "Try running as root or specifying disk paths manually"
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exit 1
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fi
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print_color $GREEN "Found ${#disks[@]} disk(s) to check"
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echo ""
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# Check if running as root, warn if not
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if [[ $EUID -ne 0 ]]; then
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print_color $YELLOW "Warning: Not running as root. Some disks may not be accessible."
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echo "For complete results, run as: sudo $0"
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echo ""
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fi
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# Check each disk
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for disk in "${disks[@]}"; do
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check_disk "$disk"
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done
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print_color $BLUE "Check completed!"
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}
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# Usage information
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usage() {
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echo "Usage: $SCRIPT_NAME [DISK1 DISK2 ...]"
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echo ""
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echo "If no disks specified, auto-detects all available disks"
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echo ""
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echo "Examples:"
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echo " $SCRIPT_NAME # Check all auto-detected disks"
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echo " sudo $SCRIPT_NAME # Check all disks (as root)"
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echo " $SCRIPT_NAME /dev/sda # Check specific disk"
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echo " $SCRIPT_NAME /dev/sda /dev/nvme0n1 # Check multiple disks"
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}
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# Parse command line arguments
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case "${1:-}" in
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-h|--help)
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usage
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exit 0
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;;
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-v|--version)
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echo "$SCRIPT_NAME version $VERSION"
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exit 0
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;;
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*)
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main "$@"
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;;
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esac
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