#!/usr/bin/python # prerequsites: # 1. root filesystem is in a VG. # 2. have free space in root VG to build up a docker pool. # 3. additional extra disk import dsstst, os, sys print "- start: " + os.path.basename(__file__) dsstst.check_root() dsstst.destroy_pool_and_extra_disk() if len(sys.argv) > 1: base = sys.argv[1] else: base = dsstst.base oldpe = dsstst.get_freepe(base) + dsstst.oldpe # Fill into 70% of free space to trigger auto-extension. # XFS has PE Size = 4MB. size = str(int(4 * oldpe * 0.7)) + 'MB' vg=dsstst.get_rootvg() dsstst.conf_and_start_docker( conf='DATA_SIZE=' + size + '\nCHUNK_SIZE=1024\nDEVS=' + dsstst.extra) dsstst.check_chunksize(size=1024, vg=vg) dsstst.check_percent( new = dsstst.get_freepe(base) + dsstst.get_freepe(dsstst.pextra), old = oldpe, percent=0.7) print "- pass: " + os.path.basename(__file__)
#!/usr/bin/python # prerequsites: # 1. root filesystem is in a VG. # 2. extra unpartitioned block device import dsstst, os print "- start: " + os.path.basename(__file__) # The image used later in fill_pool() is only 10GB in size, so make sure the # docker pool size is smaller than to avoid running out of the space inside # the image. dsstst.check_destroy_and_start_all(vg=dsstst.get_rootvg(), conf='DEVS=' + dsstst.extra + '\nDATA_SIZE=5G\n' + 'POOL_AUTOEXTEND_THRESHOLD=70\nPOOL_AUTOEXTEND_PERCENT=30') if dsstst.debug != 0 and os.path.isfile(dsstst.profile_extend): with open(dsstst.profile_extend) as fd: print fd.read() # Let's dd some file inside a container around 80% to trigger the threashold. dsstst.fill_pool(percent=0.8, expect=-0.3) print "- pass: " + os.path.basename(__file__)
