Niagara Quickstart: Difference between revisions

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When writing your scripts, use the environment variables (<tt>$HOME</tt>, <tt>$SCRATCH</tt>, <tt>$PROJECT</tt>, <tt>$ARCHIVE</tt>) instead of the actual paths!  The paths may change in the future.
When writing your scripts, use the environment variables (<tt>$HOME</tt>, <tt>$SCRATCH</tt>, <tt>$PROJECT</tt>, <tt>$ARCHIVE</tt>) instead of the actual paths!  The paths may change in the future.


== Storage and quotas == <!--T:39-->
=== Storage and quotas === <!--T:39-->


[[Data_Management | Data Management]]
You should familiarize yourself with the [[Data_Management#Purpose_of_each_file_system | various file systems]], what purpose they serve, and how to properly use them.  This table summarizes the various file systems.  See the [[Data_Management | Data Management]] page for more details.


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| read-only
| read-only
|-
|-
|rowspan="6"| $SCRATCH
|rowspan="2"| $SCRATCH
|colspan="2"| 25 TB per user (dynamic per group)
|colspan="2"| 25 TB per user
|align="right" rowspan="6" | 16 MB
|align="right" rowspan="2" | 16 MB
|rowspan="6"| 2 months
|rowspan="2"| 2 months
|rowspan="6"| no
|rowspan="2"| no
|rowspan="6"| yes
|rowspan="2"| yes
|rowspan="6"| yes
|rowspan="2"| yes
|-
|-
|align="right"|up to 4 users per group
|align="right"|50-500TB per group
|align="right"|50TB
|align="right"|[[Data_Management#Quotas_and_purging | depending on group size]]
|-
|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
| $PROJECT
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| yes
| yes
|}
|}
<!--T:41-->
<ul>
<li>[https://docs.scinet.utoronto.ca/images/9/9a/Inode_vs._Space_quota_-_v2x.pdf Inode vs. Space quota (PROJECT and SCRATCH)]</li>
<li>[https://docs.scinet.utoronto.ca/images/0/0e/Scratch-quota.pdf dynamic quota per group (SCRATCH)]</li>
<li>Compute nodes do not have local storage.</li>
<li>Archive space is on [https://docs.scinet.utoronto.ca/index.php/HPSS HPSS]</li>
<li>Backup means a recent snapshot, not an achive of all data that ever was.</li>
<li><p><code>$BBUFFER</code> stands for [https://docs.scinet.utoronto.ca/index.php/Burst_Buffer Burst Buffer], a faster parallel storage tier for temporary data.</p></li></ul>


==File/Ownership Management (ACL)== <!--T:124-->
==File/Ownership Management (ACL)== <!--T:124-->
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