def add_disk(disk_id):
"""
Add a disk
:param disk_id: Identifier of the disk (eg: '/dev/disk/by-path/pci-0000:03:00.0-sas-0x5000c29f4cf04566-lun-0' or 'pci-0000:03:00.0-sas-0x5000c29f4cf04566-lun-0')
:type disk_id: str
:return: Disk information about the newly added disk
:rtype: dict
"""
disk_data = DiskController.get_disk_data_by_alias(device_alias=disk_id)
if disk_data['available'] is False:
raise BadRequest('Disk already configured')
alias = disk_data['aliases'][0]
API._logger.info('Add disk {0}'.format(alias))
with file_mutex('add_disk'), file_mutex('disk_{0}'.format(disk_id)):
DiskController.prepare_disk(device_alias=alias)
return DiskController.get_disk_data_by_alias(device_alias=alias)
def index_disk(disk_id):
"""
Retrieve information about a single disk
:param disk_id: Identifier of the disk (eg: '/dev/disk/by-path/pci-0000:03:00.0-sas-0x5000c29f4cf04566-lun-0' or 'pci-0000:03:00.0-sas-0x5000c29f4cf04566-lun-0')
:type disk_id: str
:return: Disk information
:rtype: dict
"""
API._logger.info('Listing disk {0}'.format(disk_id))
return DiskController.get_disk_data_by_alias(device_alias=disk_id)
def list_asds_disk(disk_id):
"""
Lists all ASDs on a given disk
:param disk_id: Identifier of the disk (eg: '/dev/disk/by-path/pci-0000:03:00.0-sas-0x5000c29f4cf04566-lun-0' or 'pci-0000:03:00.0-sas-0x5000c29f4cf04566-lun-0')
:type disk_id: str
:return: ASD information for the specified disk
:rtype: dict
"""
disk_data = DiskController.get_disk_data_by_alias(device_alias=disk_id)
for partition_alias, mountpoint in FSTab.read().iteritems():
if partition_alias in disk_data['partition_aliases']:
return ASDController.list_asds(mountpoint=mountpoint)
raise BadRequest('Disk {0} is not yet initialized'.format(disk_data['aliases'][0]))
def add_asd_disk(disk_id):
"""
Adds an ASD to a disk
:param disk_id: Identifier of the disk (eg: '/dev/disk/by-path/pci-0000:03:00.0-sas-0x5000c29f4cf04566-lun-0' or 'pci-0000:03:00.0-sas-0x5000c29f4cf04566-lun-0')
:type disk_id: str
:return: None
"""
disk_data = DiskController.get_disk_data_by_alias(device_alias=disk_id)
for partition_alias, mountpoint in FSTab.read().iteritems():
if partition_alias in disk_data['partition_aliases']:
with file_mutex('add_asd'):
ASDController.create_asd(partition_alias=partition_alias)
return
raise BadRequest('Disk {0} is not yet initialized'.format(disk_data['aliases'][0]))
def get_asd(disk_id, asd_id):
"""
Gets an ASD
:param disk_id: Identifier of the disk (eg: '/dev/disk/by-path/pci-0000:03:00.0-sas-0x5000c29f4cf04566-lun-0' or 'pci-0000:03:00.0-sas-0x5000c29f4cf04566-lun-0')
:type disk_id: str
:param asd_id: Identifier of the ASD (eg: bnAWEXuPHN5YJceCeZo7KxaQW86ixXd4, found under /mnt/alba-asd/WDCztMxmRqi6Hx21/)
:type asd_id: str
:return: ASD information
:rtype: dict
"""
disk_data = DiskController.get_disk_data_by_alias(device_alias=disk_id)
alias = disk_data['aliases'][0]
for partition_alias, mountpoint in FSTab.read().iteritems():
if partition_alias in disk_data['partition_aliases']:
asds = ASDController.list_asds(mountpoint=mountpoint)
if asd_id not in asds:
raise BadRequest('ASD {0} could not be found on disk'.format(alias))
return asds[asd_id]
raise BadRequest('Disk {0} is not yet initialized'.format(alias))
def delete_disk(disk_id):
"""
Delete a disk
:param disk_id: Identifier of the disk (eg: '/dev/disk/by-path/pci-0000:03:00.0-sas-0x5000c29f4cf04566-lun-0' or 'pci-0000:03:00.0-sas-0x5000c29f4cf04566-lun-0')
:type disk_id: str
:return: None
"""
try:
disk_data = DiskController.get_disk_data_by_alias(device_alias=disk_id)
except DiskNotFoundError:
API._logger.warning('Disk with ID {0} is no longer detected on the filesystem'.format(disk_id))
disk_data = {}
if disk_data.get('available') is True:
raise BadRequest('Disk not yet configured')
if disk_data:
alias = disk_data['aliases'][0]
mountpoint = disk_data['mountpoint'] or None
partition_aliases = disk_data['partition_aliases']
API._logger.info('Deleting disk {0}'.format(alias))
else: # Disk is most likely missing from filesystem
alias = None
mountpoint = None
partition_aliases = json.loads(request.form['partition_aliases'])
API._logger.info('Deleting unknown disk with partition aliases "{0}"'.format('", "'.join(partition_aliases)))
if mountpoint is None: # 'lsblk' did not return mountpoint for the device, but perhaps it's still mounted according to FSTab
for partition_alias, mtpt in FSTab.read().iteritems():
if partition_alias in partition_aliases:
API._logger.warning('Disk with ID {0} is still mounted on {1} according to FSTab'.format(disk_id, mountpoint))
mountpoint = mtpt
break
with file_mutex('disk_{0}'.format(disk_id)):
if mountpoint is not None:
for asd_id in ASDController.list_asds(mountpoint=mountpoint):
ASDController.remove_asd(asd_id=asd_id,
mountpoint=mountpoint)
DiskController.clean_disk(device_alias=alias,
mountpoint=mountpoint,
partition_aliases=partition_aliases)
def asd_delete(disk_id, asd_id):
"""
Deletes an ASD on a given disk
:param disk_id: Identifier of the Disk (eg: '/dev/disk/by-path/pci-0000:03:00.0-sas-0x5000c29f4cf04566-lun-0' or 'pci-0000:03:00.0-sas-0x5000c29f4cf04566-lun-0')
:type disk_id: str
:param asd_id: Identifier of the ASD (eg: bnAWEXuPHN5YJceCeZo7KxaQW86ixXd4, found under /mnt/alba-asd/WDCztMxmRqi6Hx21/)
:type asd_id: str
:return: None
"""
disk_data = DiskController.get_disk_data_by_alias(device_alias=disk_id)
alias = disk_data['aliases'][0]
API._logger.info('Removing services for disk {0}'.format(alias))
for partition_alias, mountpoint in FSTab.read().iteritems():
if partition_alias in disk_data['partition_aliases']:
if asd_id not in ASDController.list_asds(mountpoint=mountpoint):
raise BadRequest('Could not find ASD {0} on disk {1}'.format(asd_id, alias))
ASDController.remove_asd(asd_id=asd_id,
mountpoint=mountpoint)
return
raise BadRequest('Disk {0} is not yet initialized'.format(alias))
def restart_disk(disk_id):
"""
Restart a disk
:param disk_id: Identifier of the disk (eg: '/dev/disk/by-path/pci-0000:03:00.0-sas-0x5000c29f4cf04566-lun-0' or 'pci-0000:03:00.0-sas-0x5000c29f4cf04566-lun-0')
:type disk_id: str
:return: None
"""
API._logger.info('Restarting disk {0}'.format(disk_id))
disk_data = DiskController.get_disk_data_by_alias(device_alias=disk_id)
alias = disk_data['aliases'][0]
with file_mutex('disk_{0}'.format(disk_id)):
API._logger.info('Got lock for restarting disk {0}'.format(alias))
for partition_alias, mountpoint in FSTab.read().iteritems():
if partition_alias in disk_data['partition_aliases']:
asds = ASDController.list_asds(mountpoint=mountpoint)
for asd_id in asds:
ASDController.stop_asd(asd_id=asd_id)
DiskController.remount_disk(device_alias=alias,
mountpoint=mountpoint)
asds = ASDController.list_asds(mountpoint=mountpoint)
for asd_id in asds:
ASDController.start_asd(asd_id=asd_id)
break