Object Storage Quotas

Overview

Quotas prevent individual projects from consuming excessive object storage capacity. Quotas are enforced at the account level (project-wide) or container level. When a quota is exceeded, the storage service returns 413 Request Entity Too Large.

Administrator Access Required — This operation requires the admin role. Contact your Polystack administrator if you do not have sufficient permissions.

Account-Level Quotas

Account quotas limit the total storage consumed by a project across all containers.

Set account quota
Remove account quota

Set account-level quota (100 GB)

openstack object store account set \
  --property X-Account-Meta-Quota-Bytes=107374182400

View current account usage vs quota

openstack object store account show \
  -c x-account-bytes-used \
  -c x-account-meta-quota-bytes

Remove account quota

openstack object store account set \
  --property X-Account-Meta-Quota-Bytes=

Container-Level Quotas

Container quotas limit storage within a specific container.

Set byte quota
Set object count quota
View container quota

Set container byte quota (10 GB)

openstack container set \
  --property X-Container-Meta-Quota-Bytes=10737418240 \
  app-uploads

Set container object count quota

openstack container set \
  --property X-Container-Meta-Quota-Count=10000 \
  app-uploads

Set both byte and count quotas on shared containers — count quotas prevent namespace abuse from applications that create excessive small objects.

View container quota and usage

openstack container show app-uploads | grep -i "quota\|object"

Quota Reference

Quota Type	Header	Scope	Enforcement
Account byte limit	`X-Account-Meta-Quota-Bytes`	All containers in account	Returns 413 on exceed
Container byte limit	`X-Container-Meta-Quota-Bytes`	Single container	Returns 413 on exceed
Container object count	`X-Container-Meta-Quota-Count`	Single container	Returns 413 on exceed

Common Quota Sizes

Size	Bytes
10 GB	`10737418240`
50 GB	`53687091200`
100 GB	`107374182400`
500 GB	`536870912000`
1 TB	`1099511627776`

Next Steps

Security

Apply access controls and TLS hardening alongside quotas

Monitoring

Track capacity usage across nodes and accounts

Storage Policies

Design storage tiers to optimize cost and capacity

Admin Troubleshooting

Diagnose quota enforcement and 413 errors

Core Services

Other Services

Overview

Account-Level Quotas

Container-Level Quotas

Quota Reference

Common Quota Sizes

Next Steps

Security

Monitoring

Storage Policies

Admin Troubleshooting

​Overview

​Account-Level Quotas

​Container-Level Quotas

​Quota Reference

​Common Quota Sizes

​Next Steps

Security

Monitoring

Storage Policies

Admin Troubleshooting

Overview

Account-Level Quotas

Container-Level Quotas

Quota Reference

Common Quota Sizes

Next Steps