You can set limits for data storage and data transfer as a means of
monitoring and controlling usage costs on the ScaleX platform. For
these options, set a value (in Gibibytes) desired as the target limit,
and percentages of the target limit when you would receive email
Setting “Enforce” to “OFF” makes a soft limit, in which you will
receive an email notification when the limit is exceeded, but does not
change whether you can store or transfer more files to the ScaleX
Setting “Enforce” to “ON” makes a hard, or strict limit.
Enforced storage limit
When the storage limit is enforced, cloud files are automatically
deleted until your total active storage is less than your target
limit. The oldest files uploaded will be deleted first. The deletion
procedure runs every hour, such that it is possible to exceed the
storage limit by up to an hour. If you exceed the Free tier level of
data storage in this way, even in the presence of a storage limit
within the Free tier, you will be charged for the next tier of data
Note that while file storage is tracked in real-time on the ScaleX
platform, storage limit notifications are checked every 10 minutes.
This means that if you set a limit to facilitate cost control, but
exceed your storage limit in the way described above, you may be
receiving notifications after your storage limit has already been
Enforced transfer limit
If the transfer limit is exceeded and enforced, users will not be able
to upload files to nor download files from cloud storage. Provided
that there is no storage limit, or that it is not exceeded, Rescale
compute nodes can still upload and download from Rescale Cloud
Storage. Data transfer to and from a Compute node on a running job is
not added to the data transfer count.
The file transfer total is, generally speaking, calculated upon
completion of an upload, with a 1-hour buffer window. In other
words, the file transfer size may not be updated for up to an hour
after an upload completes. During this window, it will be possible to
exceed the transfer limit, even if enforced, assuming that at the time
of starting the upload, the transfer size reflected on the ScaleX
platform has not exceed the enforced limit. At this point, the size of
data that one can upload beyond the enforced limit will depend purely
on the user’s upload bandwidth.
If total data transfer exceeds the level of the Free tier in this
fashion, the user will be billed at the corresponding usage tier.
See this example on a storage usage spike.
Links to Platform Storage and Transfer Limits
Should you require access to region specific storage and transfer limits, the following table of links will take you to each of the region specific limits pages.