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158 lines
3.6 KiB
Python
Executable File
158 lines
3.6 KiB
Python
Executable File
#!/usr/bin/env python
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import sys
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import re
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import string
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from xenctl import vdisk
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def usage():
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print >>sys.stderr,"""
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Usage: %s command <params>
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initialise [dev] [[ext_size]] - init. a physcial partition to store vd's
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create [size] [[expiry]] - allocate a vd of specified size (and expiry)
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enlarge [vdid] [extra_size] - enlarge a specified vd by some amount
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delete [vdid] - delete a vd
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import [filename] [[expiry]] - create a vd and populate w/ image from file
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export [vdid] [filename] - copy vd's contents to a file
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setexpiry [vdid] [[expiry]] - update the expiry time for a vd
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list - list all the unexpired virtual disks
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undelete [vdid] [[expiry]] - attempts to recover an expired vd
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freespace - print out the amount of space in free pool
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notes:
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vdid - the virtual disk's identity string
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size - measured in MB
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expiry - is the expiry time of the virtual disk in seconds from now
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(0 = don't expire)
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device - physical partition to 'format' to hold vd's. e.g. hda4
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ext_size - extent size (default 64MB)
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""" % sys.argv[0]
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if len(sys.argv) < 2:
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usage()
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sys.exit(-1)
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rc=''
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src=''
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expiry_time = 0
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cmd = sys.argv[1]
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if cmd == 'initialise':
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dev = sys.argv[2]
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if len(sys.argv) > 3:
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extent_size = int(sys.argv[3])
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else:
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print """No extent size specified - using default size of 64MB"""
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extent_size = 64
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print "Formatting for virtual disks"
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print "Device: " + dev
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print "Extent size: " + str(extent_size) + "MB"
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rc = vdisk.vd_format(dev, extent_size)
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elif cmd == 'create':
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size = int(sys.argv[2])
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if len(sys.argv) > 3:
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expiry_time = int(sys.argv[3])
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print "Creating a virtual disk"
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print "Size: %d" % size
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print "Expiry time (seconds from now): %d" % expiry_time
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src = vdisk.vd_create(size, expiry_time)
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elif cmd == 'enlarge':
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id = sys.argv[2]
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extra_size = int(sys.argv[3])
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rc = vdisk.vd_enlarge(id, extra_size)
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elif cmd == 'delete':
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id = sys.argv[2]
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print "Deleting a virtual disk with ID: " + id
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rc = vdisk.vd_delete(id)
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elif cmd == 'import':
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file = sys.argv[2]
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if len(sys.argv) > 3:
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expiry_time = int(sys.argv[3])
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print "Allocate new virtual disk and populate from file : %s" % file
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print vdisk.vd_read_from_file(file, expiry_time)
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elif cmd == 'export':
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id = sys.argv[2]
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file = sys.argv[3]
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print "Dump contents of virtual disk to file : %s" % file
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rc = vdisk.vd_cp_to_file(id, file )
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elif cmd == 'setexpiry':
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id = sys.argv[2]
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if len(sys.argv) > 3:
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expiry_time = int(sys.argv[3])
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print "Refreshing a virtual disk"
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print "Id: " + id
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print "Expiry time (seconds from now [or 0]): " + str(expiry_time)
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rc = vdisk.vd_refresh(id, expiry_time)
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elif cmd == 'list':
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print 'ID Size(MB) Expiry'
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for vbd in vdisk.vd_list():
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vbd['size_mb'] = vbd['size'] / vdisk.VBD_SECTORS_PER_MB
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vbd['expiry'] = (vbd['expires'] and vbd['expiry_time']) or 'never'
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print '%(vdisk_id)-4s %(size_mb)-12d %(expiry)s' % vbd
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elif cmd == 'freespace':
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print vdisk.vd_freespace()
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elif cmd == 'undelete':
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id = sys.argv[2]
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if len(sys.argv) > 3:
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expiry_time = int(sys.argv[3])
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if vdisk.vd_undelete(id, expiry_time):
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print "Undelete operation failed for virtual disk: " + id
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else:
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print "Undelete operation succeeded for virtual disk: " + id
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else:
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usage()
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sys.exit(-1)
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if src != '':
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print "Returned virtual disk id is : %s" % src
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if rc != '':
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print "return code %d" % rc
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