<tabs>
<tab name="Cedar">
{| class="wikitable" style="font-size: 95%; text-align: center;"
|+Filesystem Characteristics
! Filesystem
! Default Quota
! Lustre-based
! Backed up
! Purged
! Available by Default
! Mounted on Compute Nodes
|-
|Home Space
|50 GB and 500K files per user<ref>This quota is fixed and cannot be changed.</ref>
|Yes
|Yes
|No
|Yes
|Yes
|-
|Scratch Space
|20 TB and 1M files per user
|Yes
|No
|Files older than 60 days are purged.<ref>See [[Scratch purging policy]] for more information.</ref>
|Yes
|Yes
|-
|Project Space
|1 TB and 500K files per group<ref>Project space can be increased to 40 TB per group by a RAS request, subject to the limitations that the minimum project space per quota cannot be less than 1 TB and the sum over all four general-purpose clusters cannot exceed 43 TB. The group's sponsoring PI should write to [[technical support]] to make the request.</ref>
|Yes
|Yes
|No
|Yes
|Yes
|-
|Nearline Space
|2 TB and 5000 files per group
|Yes
|Yes
|No
|Yes
|No
|}
<references />
Starting April 1, 2024, new Rapid Access Service (RAS) policies will allow larger quotas for the project and nearline spaces. For more details, see the "Storage" section at [https://alliancecan.ca/en/services/advanced-research-computing/accessing-resources/rapid-access-service Rapid Access Service]. Quota changes larger than those permitted by RAS will require an application to the annual [https://alliancecan.ca/en/services/advanced-research-computing/accessing-resources/resource-allocation-competition Resource Allocation Competition (RAC)].
</tab>
<tab name="Graham">
{| class="wikitable" style="font-size: 95%; text-align: center;"
|+Filesystem Characteristics
! Filesystem
! Default Quota
! Lustre-based
! Backed up
! Purged
! Available by Default
! Mounted on Compute Nodes
|-
|Home Space
|50 GB and 500K files per user<ref>This quota is fixed and cannot be changed.</ref>
|No
|Yes
|No
|Yes
|Yes
|-
|Scratch Space
|20 TB and 1M files per user
|Yes
|No
|Files older than 60 days are purged.<ref>See [[Scratch purging policy]] for more information.</ref>
|Yes
|Yes
|-
|Project Space
|1 TB and 500K files per group<ref>Project space can be increased to 40 TB per group by a RAS request. The group's sponsoring PI should write to [[technical support]] to make the request.</ref>
|Yes
|Yes
|No
|Yes
|Yes
|-
|Nearline Space
|10 TB and 5000 files per group
|Yes
|Yes
|No
|Yes
|No
|}
<references />
Starting April 1, 2024, new Rapid Access Service (RAS) policies will allow larger quotas for project and nearline spaces. For more details, see the "Storage" section at [https://alliancecan.ca/en/services/advanced-research-computing/accessing-resources/rapid-access-service Rapid Access Service]. Quota changes larger than those permitted by RAS will require an application to the annual [https://alliancecan.ca/en/services/advanced-research-computing/accessing-resources/resource-allocation-competition Resource Allocation Competition (RAC)].
</tab>
<tab name="Béluga and Narval">
{| class="wikitable" style="font-size: 95%; text-align: center;"
|+Filesystem Characteristics
! Filesystem
! Default Quota
! Lustre-based
! Backed up
! Purged
! Available by Default
! Mounted on Compute Nodes
|-
|Home Space
|50 GB and 500K files per user<ref>This quota is fixed and cannot be changed.</ref>
|Yes
|Yes
|No
|Yes
|Yes
|-
|Scratch Space
|20 TB and 1M files per user
|Yes
|No
|Files older than 60 days are purged.<ref>See [[Scratch purging policy]] for more information.</ref>
|Yes
|Yes
|-
|Project Space
|1 TB and 500K files per group<ref>Project space can be increased to 40 TB per group by a RAS request. The group's sponsoring PI should write to [[technical support]] to make the request.</ref>
|Yes
|Yes
|No
|Yes
|Yes
|-
|Nearline Space
|1 TB and 5000 files per group
|Yes
|Yes
|No
|Yes
|No
|}
<references />
Starting April 1, 2024, new Rapid Access Service (RAS) policies will allow larger quotas for project and nearline spaces. For more details, see the "Storage" section at [https://alliancecan.ca/en/services/advanced-research-computing/accessing-resources/rapid-access-service Rapid Access Service]. Quota changes larger than those permitted by RAS will require an application to the annual [https://alliancecan.ca/en/services/advanced-research-computing/accessing-resources/resource-allocation-competition Resource Allocation Competition (RAC)].
</tab>
<tab name="Niagara">
{| class="wikitable"
! location
!colspan="2"| quota
!align="right"| block size
! expiration time
! backed up
! on login nodes
! on compute nodes
|-
| $HOME
|colspan="2"| 100 GB per user
|align="right"| 1 MB
|
| yes
| yes
| read-only
|-
|rowspan="6"| $SCRATCH
|colspan="2"| 25 TB per user (dynamic per group)
|align="right" rowspan="6" | 16 MB
|rowspan="6"| 2 months
|rowspan="6"| no
|rowspan="6"| yes
|rowspan="6"| yes
|-
|align="right"|up to 4 users per group
|align="right"|50TB
|-
|align="right"|up to 11 users per group
|align="right"|125TB
|-
|align="right"|up to 28 users per group
|align="right"|250TB
|-
|align="right"|up to 60 users per group
|align="right"|400TB
|-
|align="right"|above 60 users per group
|align="right"|500TB
|-
| $PROJECT
|colspan="2"| by group allocation (RRG or RPP)
|align="right"| 16 MB
|
| yes
| yes
| yes
|-
| $ARCHIVE
|colspan="2"| by group allocation
|align="right"|
|
| dual-copy
| no
| no
|-
| $BBUFFER
|colspan="2"| 10 TB per user
|align="right"| 1 MB
| very short
| no
| yes
| yes
|}
<ul>
<li>[https://docs.scinet.utoronto.ca/images/9/9a/Inode_vs._Space_quota_-_v2x.pdf Inode vs. Space quota (PROJECT and SCRATCH)]</li>
<li>[https://docs.scinet.utoronto.ca/images/0/0e/Scratch-quota.pdf dynamic quota per group (SCRATCH)]</li>
<li>Compute nodes do not have local storage.</li>
<li>Archive (a.k.a. nearline) space is on [https://docs.scinet.utoronto.ca/index.php/HPSS HPSS]</li>
<li>Backup means a recent snapshot, not an archive of all data that ever was.</li>
<li><code>$BBUFFER</code> stands for [https://docs.scinet.utoronto.ca/index.php/Burst_Buffer Burst Buffer], a faster parallel storage tier for temporary data.</li></ul>