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disk-health/old/obsolete/ubuntu-v2.6.sh
2025-10-22 15:02:09 +08:00

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24 KiB
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#!/bin/bash
# Disk Health Check Script for Ubuntu 24.04
# Enhanced with SAS/PERC H730P controller support
# Checks SSD TBW/lifespan and HDD health status
SCRIPT_NAME=$(basename "$0")
VERSION="2.6"
# Color codes
RED=$(tput setaf 1)
GREEN=$(tput setaf 2)
YELLOW=$(tput setaf 3)
BLUE=$(tput setaf 4)
CYAN=$(tput setaf 6)
NC=$(tput sgr0)
# Function to print colored output
print_color() {
local color=$1
local message=$2
echo -e "${color}${message}${NC}"
}
# Check if command exists
command_exists() {
command -v "$1" >/dev/null 2>&1
}
# Check dependencies
check_dependencies() {
local missing=()
if ! command_exists smartctl; then
missing+=("smartmontools")
fi
if ! command_exists bc; then
missing+=("bc")
fi
if [[ ${#missing[@]} -gt 0 ]]; then
print_color $RED "Error: Missing required packages: ${missing[*]}"
echo "Install with: sudo apt update && sudo apt install ${missing[*]}"
exit 1
fi
}
# Function to test SMART access and get available data - ENHANCED FOR NVMe
test_smart_access() {
local disk=$1
local controller=$2
local smart_cmd="smartctl"
[[ -n "$controller" ]] && smart_cmd+=" -d $controller"
# Test basic SMART access
if ! $smart_cmd -i "$disk" &>/dev/null; then
echo "no_access"
return
fi
# Get SMART information
local smart_info=$($smart_cmd -i "$disk" 2>/dev/null)
# Check if this is an NVMe drive
if echo "$smart_info" | grep -qi "NVMe"; then
# NVMe drives have different SMART implementation
if $smart_cmd -H "$disk" &>/dev/null; then
echo "full_access"
else
echo "no_attributes"
fi
return
fi
# Check if SMART is available for SATA/SAS
if ! echo "$smart_info" | grep -q "SMART support is:"; then
echo "not_available"
return
fi
# Extract SMART status
local smart_support_line=$(echo "$smart_info" | grep "SMART support is:")
local smart_available=$(echo "$smart_support_line" | grep -q "Available" && echo "Available" || echo "")
local smart_enabled=$(echo "$smart_support_line" | grep -q "Enabled" && echo "Enabled" || echo "")
if [[ -z "$smart_available" ]]; then
echo "not_available"
return
fi
if [[ -z "$smart_enabled" ]]; then
echo "disabled"
return
fi
# Test attribute reading
local attributes=$($smart_cmd -A "$disk" 2>/dev/null)
if [[ -z "$attributes" ]] || ! echo "$attributes" | grep -q "ATTRIBUTE_NAME"; then
echo "no_attributes"
return
fi
echo "full_access"
}
# Function to get disk information with enhanced SAS and NVMe support
get_disk_info() {
local disk=$1
local controller=$2
local smart_cmd="smartctl"
[[ -n "$controller" ]] && smart_cmd+=" -d $controller"
local info=$($smart_cmd -i "$disk" 2>/dev/null)
local attributes=$($smart_cmd -A "$disk" 2>/dev/null)
local health=$($smart_cmd -H "$disk" 2>/dev/null)
# Extract information with multiple fallbacks
local model=$(echo "$info" | grep -i "Device Model:\|Product:\|Model Number:" | cut -d: -f2 | sed 's/^[ \t]*//' | head -1)
local vendor=$(echo "$info" | grep -i "Vendor:" | cut -d: -f2 | sed 's/^[ \t]*//' | head -1)
[[ -n "$vendor" && -n "$model" ]] && model="$vendor $model"
local serial=$(echo "$info" | grep -i "Serial Number:\|Serial number:" | cut -d: -f2 | sed 's/^[ \t]*//' | head -1)
local capacity=$(echo "$info" | grep -i "User Capacity:\|Total NVM Capacity:\|Namespace 1 Size/Capacity:" | cut -d: -f2 | sed 's/^[ \t]*//' | cut -d'[' -f1 | head -1)
local firmware=$(echo "$info" | grep -i "Firmware Version:\|Firmware revision:\|Revision:" | cut -d: -f2 | sed 's/^[ \t]*//' | head -1)
local health_status=$(echo "$health" | grep -i "result:\|SMART overall-health\|Health Status:" | cut -d: -f2 | sed 's/^[ \t]*//' | head -1)
[[ -z "$health_status" ]] && health_status=$(echo "$health" | grep -i "SMART overall-health" | awk -F'[' '{print $2}' | cut -d']' -f1)
# Get disk type
local disk_type="UNKNOWN"
if echo "$info" | grep -qi "Solid State Device\|NVMe"; then
disk_type="SSD"
elif echo "$info" | grep -qi "Rotation Rate"; then
disk_type="HDD"
elif echo "$info" | grep -qi "SCSI\|SAS"; then
if echo "$info" | grep -qi "15000\|10000\|7200"; then
disk_type="HDD"
else
disk_type="SSD"
fi
fi
# Extract SMART attributes with multiple field attempts
local power_on_hours=$(echo "$attributes" | grep -i "Power_On_Hours" | awk '{print $10}' | head -1 | sed 's/[^0-9]//g')
local reallocated_sectors=$(echo "$attributes" | grep -i "Reallocated_Sector_Ct" | awk '{print $10}' | head -1)
local pending_sectors=$(echo "$attributes" | grep -i "Current_Pending_Sector" | awk '{print $10}' | head -1)
# For Kingston and other SSDs with different attribute names
local total_written=$(echo "$attributes" | grep -i "Total_LBAs_Written\|Lifetime_Writes_GiB\|Host_Writes_32MiB\|Flash_Writes_GiB\|Data Units Written" | awk '{print $10}' | head -1)
local host_writes_32mib=$(echo "$attributes" | grep -i "Host_Writes_32MiB" | awk '{print $10}' | head -1)
# For wear leveling indicators
local media_wearout=$(echo "$attributes" | grep -i "Media_Wearout_Indicator\|Wear_Leveling_Count\|SSD_Life_Left\|Percentage Used\|Available Spare" | awk '{print $10}' | head -1)
echo "$model|$serial|$capacity|$firmware|$health_status|$disk_type|$power_on_hours|$reallocated_sectors|$pending_sectors|$total_written|$host_writes_32mib|$media_wearout"
}
# Function to calculate TBW for SSD - ENHANCED FOR KINGSTON AND NVMe
calculate_tbw() {
local raw_value=$1
local sectors=$2
local disk_model=$3
local attribute_name=$4
# Kingston SSDs use Lifetime_Writes_GiB and Flash_Writes_GiB
if echo "$disk_model" | grep -qi "KINGSTON"; then
if [[ -n "$raw_value" && "$raw_value" != "0" ]]; then
# Convert from GiB to TB
local tbw=$(echo "scale=2; $raw_value / 1000" | bc 2>/dev/null || echo "0")
echo "$tbw"
return
fi
fi
# NVMe drives use Data Units Written (1 unit = 1,000,000 bytes for NVMe 1.0+, 512,000 bytes for older)
if echo "$attribute_name" | grep -qi "Data Units Written"; then
if [[ -n "$raw_value" && "$raw_value" != "0" ]]; then
# Convert from data units to TB (assuming 1,000,000 bytes per unit)
local bytes=$(echo "$raw_value * 1000000" | bc 2>/dev/null)
local tbw=$(echo "scale=2; $bytes / 1000 / 1000 / 1000 / 1000" | bc 2>/dev/null || echo "0")
echo "$tbw"
return
fi
fi
if [[ -n "$sectors" && "$sectors" != "0" ]]; then
local bytes=$((sectors * 512))
local tbw=$(echo "scale=2; $bytes / 1000 / 1000 / 1000 / 1000" | bc 2>/dev/null || echo "0")
echo "$tbw"
elif [[ -n "$raw_value" && "$raw_value" != "0" ]]; then
local tbw=$(echo "scale=2; $raw_value * 32 / 1000 / 1000" | bc 2>/dev/null || echo "0")
echo "$tbw"
else
echo "0"
fi
}
# Function to estimate SSD endurance based on model and capacity
estimate_ssd_endurance() {
local disk_model=$1
local capacity_gb=$2
# Kingston consumer SSDs
if echo "$disk_model" | grep -qi "KINGSTON.*SA400"; then
if [[ $capacity_gb -ge 960 ]]; then
echo "300" # 300TB for 960GB Kingston SA400
elif [[ $capacity_gb -ge 480 ]]; then
echo "150" # 150TB for 480GB Kingston
else
echo "80" # 80TB for smaller Kingston
fi
# NVMe SSDs typically have higher endurance
elif echo "$disk_model" | grep -qi "NVMe"; then
if [[ $capacity_gb -ge 2000 ]]; then
echo "1200" # 1.2PB for 2TB+ NVMe
elif [[ $capacity_gb -ge 1000 ]]; then
echo "600" # 600TB for 1TB NVMe
elif [[ $capacity_gb -ge 500 ]]; then
echo "300" # 300TB for 500GB NVMe
else
echo "150" # 150TB for smaller NVMe
fi
# SAS SSDs typically have very high endurance
elif echo "$disk_model" | grep -qi "ST600MP\|SEAGATE.*SSD\|SAS.*SSD"; then
if [[ $capacity_gb -ge 1000 ]]; then
echo "10000" # 10PB for 1TB+ enterprise SAS SSD
elif [[ $capacity_gb -ge 600 ]]; then
echo "6000" # 6PB for 600GB enterprise SAS SSD
elif [[ $capacity_gb -ge 400 ]]; then
echo "4000" # 4PB for 400GB enterprise SAS SSD
else
echo "2000" # 2PB for smaller enterprise SAS SSD
fi
elif echo "$disk_model" | grep -qi "MTFDDAK\|MICRON\|INTEL\|SAMSUNG\|KIOXIA\|WDC\|WESTERN DIGITAL"; then
# Enterprise SATA/NVMe SSDs
if [[ $capacity_gb -ge 1000 ]]; then
echo "1200" # 1.2PB for 1TB enterprise
elif [[ $capacity_gb -ge 480 ]]; then
echo "600" # 600TB for 480GB enterprise
elif [[ $capacity_gb -ge 240 ]]; then
echo "300" # 300TB for 240GB enterprise
else
echo "150" # 150TB for smaller enterprise
fi
else
# Consumer SSDs
if [[ $capacity_gb -ge 1000 ]]; then
echo "600" # 600TB for 1TB consumer
elif [[ $capacity_gb -ge 480 ]]; then
echo "300" # 300TB for 480GB consumer
elif [[ $capacity_gb -ge 240 ]]; then
echo "150" # 150TB for 240GB consumer
elif [[ $capacity_gb -ge 120 ]]; then
echo "80" # 80TB for 120GB consumer
else
echo "40" # 40TB for smaller drives
fi
fi
}
# Function to estimate SSD lifespan with TBW remaining - ENHANCED
estimate_ssd_lifespan() {
local power_on_hours=$1
local tbw_used=$2
local disk_model=$3
local capacity_gb=$4
local media_wearout=$5
if [[ -z "$power_on_hours" || "$power_on_hours" -eq 0 ]]; then
echo "Unknown||Unknown||Unknown"
return
fi
local estimated_endurance=$(estimate_ssd_endurance "$disk_model" "$capacity_gb")
local tbw_remaining=$(echo "scale=2; $estimated_endurance - $tbw_used" | bc 2>/dev/null || echo "0")
# If we have media wearout indicator, use it for more accurate estimation
if [[ -n "$media_wearout" && "$media_wearout" != "0" ]]; then
# For Kingston, SSD_Life_Left is already a percentage
if echo "$disk_model" | grep -qi "KINGSTON"; then
if [[ $media_wearout -le 10 ]]; then
echo "${RED}${media_wearout}%${NC}|${RED}${tbw_remaining} TB${NC}|${RED}Critical wear${NC}|media_wearout"
elif [[ $media_wearout -le 30 ]]; then
echo "${YELLOW}${media_wearout}%${NC}|${YELLOW}${tbw_remaining} TB${NC}|${YELLOW}High wear${NC}|media_wearout"
elif [[ $media_wearout -le 70 ]]; then
echo "${YELLOW}${media_wearout}%${NC}|${YELLOW}${tbw_remaining} TB${NC}|${YELLOW}Moderate wear${NC}|media_wearout"
else
echo "${GREEN}${media_wearout}%${NC}|${GREEN}${tbw_remaining} TB${NC}|${GREEN}Healthy${NC}|media_wearout"
fi
else
# For other drives, media_wearout might be countdown from 100
local wear_percent=$media_wearout
if [[ $media_wearout -le 10 ]]; then
echo "${RED}${wear_percent}%${NC}|${RED}${tbw_remaining} TB${NC}|${RED}Critical wear${NC}|media_wearout"
elif [[ $media_wearout -le 30 ]]; then
echo "${YELLOW}${wear_percent}%${NC}|${YELLOW}${tbw_remaining} TB${NC}|${YELLOW}High wear${NC}|media_wearout"
elif [[ $media_wearout -le 70 ]]; then
echo "${YELLOW}${wear_percent}%${NC}|${YELLOW}${tbw_remaining} TB${NC}|${YELLOW}Moderate wear${NC}|media_wearout"
else
echo "${GREEN}${wear_percent}%${NC}|${GREEN}${tbw_remaining} TB${NC}|${GREEN}Healthy${NC}|media_wearout"
fi
fi
return
fi
if [[ $(echo "$tbw_used > 0" | bc 2>/dev/null) -eq 1 ]]; then
local lifespan_used=$(echo "scale=1; $tbw_used * 100 / $estimated_endurance" | bc 2>/dev/null || echo "0")
local lifespan_remaining=$(echo "scale=1; 100 - $lifespan_used" | bc 2>/dev/null || echo "100")
if [[ $(echo "$lifespan_used >= 80" | bc 2>/dev/null) -eq 1 ]]; then
echo "${RED}${lifespan_remaining}%${NC}|${RED}${tbw_remaining} TB${NC}|${RED}High wear${NC}|tbw"
elif [[ $(echo "$lifespan_used >= 50" | bc 2>/dev/null) -eq 1 ]]; then
echo "${YELLOW}${lifespan_remaining}%${NC}|${YELLOW}${tbw_remaining} TB${NC}|${YELLOW}Moderate wear${NC}|tbw"
else
echo "${GREEN}${lifespan_remaining}%${NC}|${GREEN}${tbw_remaining} TB${NC}|${GREEN}Healthy${NC}|tbw"
fi
else
echo "Unknown|${estimated_endurance} TB|New|estimated"
fi
}
# Function to estimate HDD lifespan - FIXED POWER_ON_HOURS PARSING
estimate_hdd_lifespan() {
local power_on_hours=$1
local reallocated_sectors=$2
local pending_sectors=$3
# Clean power_on_hours to extract just the numeric part
local clean_hours=$(echo "$power_on_hours" | sed 's/[^0-9].*//')
clean_hours=${clean_hours:-0}
if [[ -z "$clean_hours" || "$clean_hours" -eq 0 ]]; then
echo "Unknown"
return
fi
reallocated_sectors=${reallocated_sectors:-0}
pending_sectors=${pending_sectors:-0}
if [[ "$pending_sectors" -gt 0 ]]; then
echo "${RED}CRITICAL${NC} (Pending sectors: $pending_sectors)"
elif [[ "$reallocated_sectors" -gt 100 ]]; then
echo "${RED}< 6 months${NC} (High reallocated sectors: $reallocated_sectors)"
elif [[ "$reallocated_sectors" -gt 10 ]]; then
echo "${YELLOW}6-12 months${NC} (Reallocated sectors: $reallocated_sectors)"
elif [[ "$clean_hours" -gt 40000 ]]; then
echo "${YELLOW}1-2 years${NC} (High usage: $clean_hours hours)"
elif [[ "$clean_hours" -gt 25000 ]]; then
echo "${GREEN}2-3 years${NC} (Moderate usage: $clean_hours hours)"
else
echo "${GREEN}> 3 years${NC} (Low usage: $clean_hours hours)"
fi
}
# Function to check a single disk with enhanced error handling
check_disk() {
local disk=$1
local controller=$2
print_color $CYAN "Checking disk: $disk (Controller: ${controller:-direct})"
echo "=================================================="
# Test SMART access level
local access_level=$(test_smart_access "$disk" "$controller")
case $access_level in
"no_access")
print_color $RED "ERROR: Cannot access disk through controller"
echo "Possible reasons:"
echo " - Controller doesn't support SMART passthrough"
echo " - Disk is part of a hardware RAID array"
echo " - Insufficient permissions (try running as root)"
echo " - Controller busy or offline"
echo ""
return
;;
"not_available")
print_color $YELLOW "SMART not available on this disk"
echo "This disk does not support SMART monitoring"
echo ""
return
;;
"disabled")
print_color $YELLOW "SMART is disabled on this disk"
echo "SMART is available but currently disabled"
echo "To enable manually: smartctl -s on ${controller:+-d $controller} $disk"
echo ""
return
;;
"no_attributes")
print_color $YELLOW "WARNING: Cannot read SMART attributes"
echo "This is common with hardware RAID controllers like PERC H730P"
echo "Try checking through the RAID management interface"
echo ""
return
;;
"limited_attributes")
print_color $YELLOW "NOTE: Limited SMART data available"
echo "Controller is filtering some SMART attributes"
;;
esac
# Get disk information
local disk_info=$(get_disk_info "$disk" "$controller")
IFS='|' read -r model serial capacity firmware health_status disk_type power_on_hours reallocated_sectors pending_sectors total_written host_writes_32mib media_wearout <<< "$disk_info"
# Display basic information
echo "Model: ${model:-Unknown}"
echo "Serial: ${serial:-Unknown}"
echo "Type: $disk_type"
echo "Capacity: ${capacity:-Unknown}"
echo "Firmware: ${firmware:-Unknown}"
echo "Health: ${health_status:-Unknown}"
# Only show power on hours if available
if [[ -n "$power_on_hours" && "$power_on_hours" != "0" ]]; then
echo "Power On Hours: $power_on_hours"
else
echo "Power On Hours: Unknown"
fi
# Disk type specific analysis
if [[ "$disk_type" == "SSD" ]]; then
# Get the actual attribute name for TBW calculation
local attributes=$(smartctl -A "$disk" 2>/dev/null)
local tbw_attribute_name=$(echo "$attributes" | grep -i "Lifetime_Writes_GiB\|Flash_Writes_GiB\|Data Units Written" | head -1 | awk '{print $2}')
local tbw_used=0
if [[ -n "$total_written" && "$total_written" != "0" ]]; then
tbw_used=$(calculate_tbw "" "$total_written" "$model" "$tbw_attribute_name")
elif [[ -n "$host_writes_32mib" && "$host_writes_32mib" != "0" ]]; then
tbw_used=$(calculate_tbw "$host_writes_32mib" "" "$model" "$tbw_attribute_name")
fi
# Always show TBW information for SSDs
echo "TBW Used: ${tbw_used} TB"
# Estimate capacity for endurance calculation
local capacity_gb=0
if echo "$capacity" | grep -qi "GB"; then
capacity_gb=$(echo "$capacity" | grep -o '[0-9.]*' | head -1 | cut -d. -f1)
elif echo "$capacity" | grep -qi "TB"; then
capacity_gb=$(echo "$capacity" | grep -o '[0-9.]*' | head -1 | awk '{print $1 * 1000}' | bc 2>/dev/null | cut -d. -f1)
fi
local lifespan_info=$(estimate_ssd_lifespan "$power_on_hours" "$tbw_used" "$model" "$capacity_gb" "$media_wearout")
local lifespan_percent=$(echo "$lifespan_info" | cut -d'|' -f1)
local tbw_remaining=$(echo "$lifespan_info" | cut -d'|' -f2)
local wear_status=$(echo "$lifespan_info" | cut -d'|' -f3)
local wear_source=$(echo "$lifespan_info" | cut -d'|' -f4)
echo "TBW Remaining: $tbw_remaining"
echo "Lifespan: $lifespan_percent ($wear_status)"
# Show wear source if available
if [[ "$wear_source" == "media_wearout" ]]; then
echo "Wear Source: Media Wearout Indicator"
elif [[ "$wear_source" == "tbw" ]]; then
echo "Wear Source: TBW Calculation"
elif [[ "$wear_source" == "estimated" ]]; then
echo "Wear Source: Estimated Endurance"
fi
elif [[ "$disk_type" == "HDD" ]]; then
if [[ -n "$reallocated_sectors" && "$reallocated_sectors" != "0" ]]; then
echo "Realloc Sectors: $reallocated_sectors"
fi
if [[ -n "$pending_sectors" && "$pending_sectors" != "0" ]]; then
echo "Pending Sectors: $pending_sectors"
fi
local lifespan=$(estimate_hdd_lifespan "$power_on_hours" "${reallocated_sectors:-0}" "${pending_sectors:-0}")
echo "Lifespan: $lifespan"
else
print_color $YELLOW "Limited information available for this disk type"
echo "This is normal for hardware RAID configurations like PERC H730P"
echo "For detailed SAS drive information, use controller management tools"
fi
echo ""
}
# Function to detect all disks with enhanced SAS support (no partitions)
detect_disks() {
local disks=()
# Check for SATA/SAS disks - only main devices, no partitions
for disk in /dev/sd[a-z]; do
if [[ -b "$disk" ]]; then
disks+=("$disk")
fi
done
# Check for NVMe disks - only main devices, no partitions
for disk in /dev/nvme[0-9]n[0-9]; do
if [[ -b "$disk" ]]; then
disks+=("$disk")
fi
done
# Check for SAS disks via SCSI generic - only main devices
for disk in /dev/sg[0-9]; do
if [[ -b "$disk" ]]; then
disks+=("$disk")
fi
done
# Check for other disk types - only main devices
for disk in /dev/vd[a-z] /dev/xvd[a-z]; do
if [[ -b "$disk" ]]; then
disks+=("$disk")
fi
done
echo "${disks[@]}"
}
# Function to detect RAID controllers (Ubuntu specific)
detect_raid_controllers() {
local controllers=("megaraid" "cciss" "areca" "3ware" "hpt")
local raid_disks=()
# Check for RAID controllers
for controller in "${controllers[@]}"; do
for i in {0..31}; do
# Try different disk devices for each controller
for base_disk in "/dev/sda" "/dev/sdb" "/dev/sdc" "/dev/sg0" "/dev/sg1"; do
if [[ -b "$base_disk" ]]; then
if smartctl -d "$controller,$i" -i "$base_disk" &>/dev/null; then
raid_disks+=("$base_disk:$controller,$i")
break
fi
fi
done
done
done
echo "${raid_disks[@]}"
}
# Main function
main() {
print_color $BLUE "Ubuntu 24.04 Disk Health Check Script v$VERSION"
print_color $BLUE "Enhanced with PERC H730P and SAS Support"
print_color $BLUE "============================================"
echo ""
check_dependencies
local disks=()
# If specific disk provided, check only that disk
if [[ $# -gt 0 ]]; then
for disk in "$@"; do
if [[ -b "$disk" ]]; then
disks+=("$disk")
else
print_color $RED "Error: $disk is not a valid block device"
fi
done
else
# Auto-detect disks
print_color $CYAN "Auto-detecting disks (excluding partitions)..."
local direct_disks=()
read -ra direct_disks <<< "$(detect_disks)"
print_color $CYAN "Scanning for RAID controllers..."
local raid_disks=()
read -ra raid_disks <<< "$(detect_raid_controllers)"
# Combine both lists
disks=("${direct_disks[@]}" "${raid_disks[@]}")
fi
if [[ ${#disks[@]} -eq 0 ]]; then
print_color $RED "No disks found or accessible"
echo "Try running as root or specifying disk paths manually"
exit 1
fi
print_color $GREEN "Found ${#disks[@]} disk(s) to check"
echo ""
# Check if running as root, warn if not
if [[ $EUID -ne 0 ]]; then
print_color $YELLOW "Warning: Not running as root."
print_color $YELLOW "Some disks/controllers may show limited information."
echo "For complete results, run as: sudo $0"
echo ""
fi
# Check each disk
for disk_info in "${disks[@]}"; do
# Check if this is a RAID disk (has controller specified)
if [[ "$disk_info" == *":"* ]]; then
IFS=':' read -r disk controller <<< "$disk_info"
check_disk "$disk" "$controller"
else
check_disk "$disk_info"
fi
done
print_color $BLUE "Check completed!"
echo ""
print_color $CYAN "Note: For PERC H730P controllers with SAS drives:"
print_color $CYAN " - Install 'storcli' for detailed controller information"
print_color $CYAN " - Use 'smartctl -d sat /dev/sgX' to try direct access"
print_color $CYAN " - Hardware RAID controllers often limit SMART data access"
echo ""
print_color $CYAN "Ubuntu-specific tips:"
print_color $CYAN " - Use 'lsblk' to see all available block devices"
print_color $CYAN " - Use 'lshw -class disk' for detailed disk information"
}
# Usage information
usage() {
echo "Usage: $SCRIPT_NAME [DISK1 DISK2 ...]"
echo ""
echo "If no disks specified, auto-detects all available disks"
echo ""
echo "Examples:"
echo " $SCRIPT_NAME # Check all auto-detected disks"
echo " sudo $SCRIPT_NAME # Check all disks (as root)"
echo " $SCRIPT_NAME /dev/sda # Check specific disk"
echo " $SCRIPT_NAME /dev/nvme0n1 # Check NVMe disk"
echo " $SCRIPT_NAME /dev/sg0 # Check SAS disk directly"
echo " $SCRIPT_NAME /dev/sda /dev/nvme0n1 # Check multiple disks"
}
# Parse command line arguments
case "${1:-}" in
-h|--help)
usage
exit 0
;;
-v|--version)
echo "$SCRIPT_NAME version $VERSION"
exit 0
;;
*)
main "$@"
;;
esac