201 lines
5.8 KiB
Markdown
201 lines
5.8 KiB
Markdown
---
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title: "Microsoft Azure Blob Storage"
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description: "Rclone docs for Microsoft Azure Blob Storage"
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date: "2017-07-30"
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---
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<i class="fa fa-windows"></i> Microsoft Azure Blob Storage
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-----------------------------------------
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Paths are specified as `remote:container` (or `remote:` for the `lsd`
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command.) You may put subdirectories in too, eg
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`remote:container/path/to/dir`.
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Here is an example of making a Microsoft Azure Blob Storage
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configuration. For a remote called `remote`. First run:
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rclone config
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This will guide you through an interactive setup process:
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```
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No remotes found - make a new one
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n) New remote
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s) Set configuration password
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q) Quit config
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n/s/q> n
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name> remote
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Type of storage to configure.
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Choose a number from below, or type in your own value
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1 / Amazon Drive
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\ "amazon cloud drive"
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2 / Amazon S3 (also Dreamhost, Ceph, Minio)
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\ "s3"
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3 / Backblaze B2
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\ "b2"
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4 / Box
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\ "box"
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5 / Dropbox
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\ "dropbox"
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6 / Encrypt/Decrypt a remote
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\ "crypt"
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7 / FTP Connection
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\ "ftp"
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8 / Google Cloud Storage (this is not Google Drive)
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\ "google cloud storage"
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9 / Google Drive
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\ "drive"
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10 / Hubic
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\ "hubic"
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11 / Local Disk
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\ "local"
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12 / Microsoft Azure Blob Storage
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\ "azureblob"
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13 / Microsoft OneDrive
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\ "onedrive"
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14 / Openstack Swift (Rackspace Cloud Files, Memset Memstore, OVH)
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\ "swift"
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15 / SSH/SFTP Connection
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\ "sftp"
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16 / Yandex Disk
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\ "yandex"
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17 / http Connection
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\ "http"
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Storage> azureblob
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Storage Account Name
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account> account_name
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Storage Account Key
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key> base64encodedkey==
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Endpoint for the service - leave blank normally.
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endpoint>
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Remote config
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--------------------
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[remote]
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account = account_name
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key = base64encodedkey==
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endpoint =
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--------------------
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y) Yes this is OK
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e) Edit this remote
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d) Delete this remote
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y/e/d> y
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```
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See all containers
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rclone lsd remote:
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Make a new container
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rclone mkdir remote:container
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List the contents of a container
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rclone ls remote:container
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Sync `/home/local/directory` to the remote container, deleting any excess
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files in the container.
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rclone sync /home/local/directory remote:container
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### --fast-list ###
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This remote supports `--fast-list` which allows you to use fewer
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transactions in exchange for more memory. See the [rclone
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docs](/docs/#fast-list) for more details.
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### Modified time ###
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The modified time is stored as metadata on the object with the `mtime`
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key. It is stored using RFC3339 Format time with nanosecond
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precision. The metadata is supplied during directory listings so
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there is no overhead to using it.
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### Hashes ###
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MD5 hashes are stored with blobs. However blobs that were uploaded in
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chunks only have an MD5 if the source remote was capable of MD5
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hashes, eg the local disk.
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### Authenticating with Azure Blob Storage
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Rclone has 3 ways of authenticating with Azure Blob Storage:
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#### Account and Key
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This is the most straight forward and least flexible way. Just fill in the `account` and `key` lines and leave the rest blank.
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#### SAS URL
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This can be an account level SAS URL or container level SAS URL
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To use it leave `account`, `key` blank and fill in `sas_url`.
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Account level SAS URL or container level SAS URL can be obtained from Azure portal or Azure Storage Explorer.
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To get a container level SAS URL right click on a container in the Azure Blob explorer in the Azure portal.
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If You use container level SAS URL, rclone operations are permitted only on particular container, eg
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rclone ls azureblob:container or rclone ls azureblob:
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Since container name already exists in SAS URL, you can leave it empty as well.
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However these will not work
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rclone lsd azureblob:
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rclone ls azureblob:othercontainer
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This would be useful for temporarily allowing third parties access to a single container or putting credentials into an untrusted environment.
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### Multipart uploads ###
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Rclone supports multipart uploads with Azure Blob storage. Files
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bigger than 256MB will be uploaded using chunked upload by default.
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The files will be uploaded in parallel in 4MB chunks (by default).
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Note that these chunks are buffered in memory and there may be up to
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`--transfers` of them being uploaded at once.
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Files can't be split into more than 50,000 chunks so by default, so
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the largest file that can be uploaded with 4MB chunk size is 195GB.
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Above this rclone will double the chunk size until it creates less
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than 50,000 chunks. By default this will mean a maximum file size of
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3.2TB can be uploaded. This can be raised to 5TB using
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`--azureblob-chunk-size 100M`.
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Note that rclone doesn't commit the block list until the end of the
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upload which means that there is a limit of 9.5TB of multipart uploads
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in progress as Azure won't allow more than that amount of uncommitted
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blocks.
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### Specific options ###
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Here are the command line options specific to this cloud storage
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system.
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#### --azureblob-upload-cutoff=SIZE ####
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Cutoff for switching to chunked upload - must be <= 256MB. The default
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is 256MB.
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#### --azureblob-chunk-size=SIZE ####
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Upload chunk size. Default 4MB. Note that this is stored in memory
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and there may be up to `--transfers` chunks stored at once in memory.
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This can be at most 100MB.
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#### --azureblob-access-tier=Hot/Cool/Archive ####
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Azure storage supports blob tiering, you can configure tier in advanced
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settings or supply flag while performing data transfer operations.
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If there is no `access tier` specified, rclone doesn't apply any tier.
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rclone performs `Set Tier` operation on blobs while uploading, if objects
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are not modified, specifying `access tier` to new one will have no effect.
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If blobs are in `archive tier` at remote, trying to perform data transfer
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operations from remote will not be allowed. User should first restore by
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tiering blob to `Hot` or `Cool`.
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### Limitations ###
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MD5 sums are only uploaded with chunked files if the source has an MD5
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sum. This will always be the case for a local to azure copy.
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