Script tính toán số lượng phân vùng cho vòng Ring

#!/bin/bash
# Ring builder calculator for swift
clear
echo "- This script will calculate the number of partitions for each device and the total number of partitions for the ring."
echo " - The default divisor is 20, which means that each device will have 20 partitions per TB."
echo " - You can change the divisor if you want to."
echo " - The number of partitions will be calculated as follows:"
echo
read -p "  + Enter device size in TB: " device_size_tb
read -p "  + Enter total number of devices: " total_devices
read -p "  + Enter the divisor for calculating partitions per device (default is 20): " divisor
read -p "  + Enter number of replicas: " replica

# Convert device size to integer
device_size_tb=${device_size_tb%.*}

# Set default divisor if empty
if [ -z "$divisor" ]; then
  divisor=20
fi

device_size_gb=$((device_size_tb * 1024))

partitions_per_device=$((device_size_gb / divisor))

total_partitions=$(( (total_devices * partitions_per_device) / replica ))

part_power=0
while (( (2**part_power) < total_partitions )); do
  ((part_power++))
done
echo
echo " - Number of partitions per device: $partitions_per_device"
echo " - Total number of partitions: $total_partitions"
echo " - Partition power: $part_power"
echo " - You can now create the ring builder files with the following commands:"
echo
echo " + swift-ring-builder account.builder create $part_power $replica 1"
echo " + swift-ring-builder container.builder create $part_power $replica 1"
echo " + swift-ring-builder object.builder create $part_power $replica 1"

shell> ./ring.builder.calculator.sh
- This script will calculate the number of partitions for each device and the total number of partitions for the ring.
 - The default divisor is 20, which means that each device will have 20 partitions per TB.
 - You can change the divisor if you want to.
 - The number of partitions will be calculated as follows:

  + Enter device size in TB: 14
  + Enter total number of devices: 100
  + Enter the divisor for calculating partitions per device (default is 20): 50
  + Enter number of replicas: 2

 - Number of partitions per device: 286
 - Total number of partitions: 14300
 - Partition power: 14
 - You can now create the ring builder files with the following commands:

 + swift-ring-builder account.builder create 14 2 1
 + swift-ring-builder container.builder create 14 2 1
 + swift-ring-builder object.builder create 14 2 1