By default, the Swift object store is used for the backup repository. To use an NFS export as the backup repository, the Cinder backup service must be restarted after adding at least the following two configuration lines to the [DEFAULT]
section of the Cinder configuration file cinder.conf
:
backup_driver=cinder.backup.drivers.nfs backup_share=HOST
:EXPORT_PATH
Other configuration options may be specified in the [DEFAULT]
section as appropriate. Table 4.23, “Configuration options for NFS backup service” lists the configuration options available for the Cinder Backup service when an NFS export is leveraged as the backup repository.
Option | Type | Default Value | Description | ||||||||||||||||||||||||||||||||||||||||||||||
backup_driver |
Required | cinder.backup.drivers.swift |
Determines the driver that the backup service will load.[a] | ||||||||||||||||||||||||||||||||||||||||||||||
backup_share |
Required | Set to HOST :EXPORT_PATH .[b] |
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backup_mount_options |
Optional | Comma separated list of options to be specified when mounting the NFS export specified in backup_share [c]. |
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backup_compression_algorithm |
Optional | zlib |
The compression algorithm to be used when sending backup data to the repository. Valid values are zlib , bz2 , and None .[d] |
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backup_file_size |
Optional | 1999994880 |
Data from Cinder volumes larger than this will be stored as multiple files in the backup repository. This option must be a multiple of backup_sha_block_size_bytes . |
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backup_sha_block_size_bytes |
Optional | 32768 |
Size of Cinder volume blocks for digital signature calculation. | ||||||||||||||||||||||||||||||||||||||||||||||
[a] Set the value of the [b] Set [c] Mount options such as [d] NetApp recommends that the |