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cluster:100 [2011/03/27 21:37]
hmeij 		cluster:100 [2011/03/27 22:56]
hmeij
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 Here is what was put in place, and will mature over time.  But first, it is important to understand: Here is what was put in place, and will mature over time.  But first, it is important to understand:
  
-  * A quota is not disk space allocated for you, as in reserved.  IT is simply a threshold (soft/low) that can be adjusted, or not. +  * A quota is not disk space allocated for you, as in reserved.  It is simply a threshold (soft/low) that can be adjusted, or not. 
-  * Reason for quotas: to avoid the /home to fill up by a runaway process, and constrain certain large users.+  * Reason for quotas: to avoid /home from filling up by a runaway process, and constrain users from growing beyond an arbitrary threshold.
  
 The quotas fall into two tiers: the sliding tier and the custom tier.  In the sliding tier, when you reach your soft limit, notify HPC admins and your quota will slide to the next strata (<100G, <250G, <500G, <750G). Once you reach the last strata, and you still need more disk space, you enter the custom tier.  Here we set a quota after agreeing on size and availability of disk space, plus 100G.  Then you are on your own.  The quotas fall into two tiers: the sliding tier and the custom tier.  In the sliding tier, when you reach your soft limit, notify HPC admins and your quota will slide to the next strata (<100G, <250G, <500G, <750G). Once you reach the last strata, and you still need more disk space, you enter the custom tier.  Here we set a quota after agreeing on size and availability of disk space, plus 100G.  Then you are on your own. 
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 We urge all users to consider archiving data and files off the cluster disk array. We urge all users to consider archiving data and files off the cluster disk array.
  
-How to find my quota?+How to find my quota? ...
  
  
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   * [[http://www.linuxtopia.org/online_books/rhel5/rhel5_administration/rhel5_ch-disk-quotas.html|Admin: Quotas]]   * [[http://www.linuxtopia.org/online_books/rhel5/rhel5_administration/rhel5_ch-disk-quotas.html|Admin: Quotas]]
   * [[http://www.experts-exchange.com/OS/Linux/Q_24002411.html|useradd wrap and default quotas]]   * [[http://www.experts-exchange.com/OS/Linux/Q_24002411.html|useradd wrap and default quotas]]
-  * [[http://linux.die.net/man/8/quotacheck|quotachedk]] invocation, file system goes read only+  * [[http://linux.die.net/man/8/quotacheck|quotacheck]] invocation, file system goes read only
  
 \\ \\
 **[[cluster:0|Back]]** **[[cluster:0|Back]]**
  
cluster/100.txt · Last modified: 2011/03/28 14:23 by hmeij

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