Create Space_Report.py

Interactive script that pulls volume space changes over a period of time and outputs the result into CSV file.

Author: erickmoore

Space_Report.py

@@ -0,0 +1,109 @@
+from purestorage import purestorage
+import sys
+import csv
+import requests
+import time
+import os
+import argparse
+
+# Disable certificate warnings
+
+requests.packages.urllib3.disable_warnings()
+
+starttime = time.time()
+
+# Set array variables
+
+flasharray = ''
+api_token = '’
+
+# Set script variables
+
+time_stamp = (time.strftime('%m-%d-%y'))
+report_file = 'space-report-' + time_stamp + '.csv'
+interval_options = '1h, 3h, 24h, 7d, 30d, 90d, 1y'
+
+def fa_connect(flasharray, api_token):
+
+    global array
+
+    try:
+        array = purestorage.FlashArray(flasharray, api_token=api_token)
+        print('Successfully connected to ', flasharray)
+    except Exception as e:
+        print(e)
+        sys.exit('Exiting: Unable to establish session')
+
+def write_output(interval):
+    with open(report_file, 'w') as csvfile:
+        fieldnames = ['Volume Name', 'Current Data Reduction', 'Data Reduction ' + interval, 'Current Size(GB)',
+                      'Size ' + interval + ' Ago(GB)', interval + ' Growth(GB)']
+        writer = csv.DictWriter(csvfile, fieldnames=fieldnames)
+        writer.writeheader()
+
+        print('Parsing volume data.')
+
+        # Loop through all volumes to get historical space data
+
+        for currentvol in allvolumes:
+            thisvol = array.get_volume(currentvol['name'], space='True', historical=interval)
+            volname = thisvol[0]['name']
+            volcurdr = round(thisvol[0]['data_reduction'], 2)
+            volstartdr = round(thisvol[len(thisvol) - 1]['data_reduction'], 2)
+            volstartsize = round(thisvol[0]['volumes'] / 1024 / 1024 / 1024, 2)
+            volcursize = round(thisvol[len(thisvol) - 1]['volumes'] / 1024 / 1024 / 1024, 2)
+            volsizedif = volcursize - volstartsize
+            volsizedif = round(volsizedif, 2)
+            writer.writerow(
+                {'Volume Name': volname, 'Current Data Reduction': volcurdr, 'Data Reduction ' + interval: volstartdr,
+                 'Current Size(GB)': volcursize, 'Size ' + interval + ' Ago(GB)': volstartsize, interval + ' Growth(GB)': volsizedif})
+
+def arg_parser():
+
+    global interval
+
+    parser = argparse.ArgumentParser('Add interval')
+    parser.add_argument('interval', type=str, help='(' + interval_options + ')')
+
+    args = parser.parse_args()
+    interval = args.interval
+
+    if interval not in interval_options:
+        print('Please enter a valid interval: ' + interval_options)
+        sys.exit()
+
+    return interval
+
+def main():
+
+    global allvolumes, interval
+
+    # Check to see if FlashArray and API key have been set
+
+    if flasharray == "":
+        sys.exit('Please edit this file and set the IP or DNS name for the variable: flasharray')
+
+    if api_token == "":
+        sys.exit('Please edit this file and assign an API token for the variable: api_token for the FlashArray ' + flasharray)
+
+    # Call argument parser to check for command line options
+
+    arg_parser()
+
+    # Call function to connect to the FlashArray
+
+    fa_connect(flasharray, api_token)
+
+    # Gather all volumes on the array
+
+    allvolumes = array.list_volumes()
+    print('Gathering all volumes.')
+
+    # Call function to parse and write output to CSV file
+
+    write_output(interval)
+
+    print('Script completed in ', round(time.time()-starttime,2), ' seconds.')
+    print('Output file: ', report_file, ' located at: ', os.getcwd())
+
+main()