Disk Quotas - Revision history

Steve410: /* If You Need a Larger Quota on the CS Ugrad Net */

2026-09-30T18:44:43Z

If You Need a Larger Quota on the CS Ugrad Net

Steve410: /* If You Need a Larger Quota on the CS Ugrad Net */

2026-09-30T18:44:25Z

If You Need a Larger Quota on the CS Ugrad Net

Pip: Quota increase

2025-08-29T12:41:56Z

Quota increase

Steve410 at 13:06, 25 March 2025

2025-03-25T13:06:40Z

Steve410 at 15:10, 8 November 2024

2024-11-08T15:10:28Z

Steve410: /* How to Get Yourself Under Quota on the CS Ugrad Net */

2024-09-30T15:53:51Z

How to Get Yourself Under Quota on the CS Ugrad Net

Steve410: /* How to Get Yourself Under Quota on the CS Ugrad Net */

2024-09-30T15:53:21Z

How to Get Yourself Under Quota on the CS Ugrad Net

Steve410: /* How to Get Yourself Under Quota on the CS Ugrad Net */

2024-09-30T15:50:12Z

How to Get Yourself Under Quota on the CS Ugrad Net

Pip at 15:28, 30 September 2024

2024-09-30T15:28:56Z

Pip: /* How to Get Yourself Under Quota on the CS Ugrad Net */

2024-09-30T15:23:38Z

How to Get Yourself Under Quota on the CS Ugrad Net

@@ Line 115: / Line 115: @@
 * Name ''and'' section of class you're taking that's requiring the extra space.
 * Name of the professor teaching the class.
-* How long you need the increased quota.  (After that, your quota will be reduced to its normal level, and you will need to be below that level to write files to your directory.)
+* How long you need the increased quota.  (After that, your quota would be reduced to its normal level, and you will need to be below that level to write files to your directory.)
 ''Quota increases are not guaranteed. Allow '''at least''' one full business day for your quota increase request to be processed.''

@@ Line 115: / Line 115: @@
 * Name ''and'' section of class you're taking that's requiring the extra space.
 * Name of the professor teaching the class.
-* How long you need the increased quota.  After that, your quota will be reduced to its normal level, and you will need to be below that level to write files to your directory.
+* How long you need the increased quota.  (After that, your quota will be reduced to its normal level, and you will need to be below that level to write files to your directory.)
 ''Quota increases are not guaranteed. Allow '''at least''' one full business day for your quota increase request to be processed.''

@@ Line 6: / Line 6: @@
 == How Quotas Work on the ''CS Ugrad Net'' ==
-Every account that is subject to a quota has limit on the total amount of disk space used by that account's files.  For most of our CS Ugrad accounts, that limit is '''10 GiB'''.  Once you hit that limit, all attempts to allocate more space (creating new files, making existing files larger, etc.) will fail.
+Every account that is subject to a quota has limit on the total amount of disk space used by that account's files.  For most of our CS Ugrad accounts, that limit is '''15 GiB'''.  Once you hit that limit, all attempts to allocate more space (creating new files, making existing files larger, etc.) will fail.
 ''If you cannot allocate more space (because you've hit your quota limit), '''you might not be able to log in via the GUI on our Ugrad computer lab Linux systems'''.  If that happens, you will have to SSH in remotely and reduce your disk usage below your quota.''
@@ Line 22: / Line 22: @@
 If it doesn't print anything, you are not subject to any quotas.  If it does print something, the output will look like this:
-  ''account'': 1.6GiB used out of 10.0GiB quota
+  ''account'': 1.6GiB used out of 15.0GiB quota
-This should be fairly self-explanatory.  The person (with account name "''account''") has files totaling 1.6 gigabytes of data. The account's usage limit is 10 gigabytes.
+This should be fairly self-explanatory.  The person (with account name "''account''") has files totaling 1.6 gigabytes of data. The account's usage limit is 15 gigabytes.
 == How to Get Yourself Under Quota on the ''CS Ugrad Net''==

← Older revision		Revision as of 13:06, 25 March 2025
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−	'''CS ''UGRAD'' Net Users:''' On the '''''CS Ugrad Net''''', the Ugrad accounts ''are subject to '''disk quotas''''', which are limits on the total amount of data you are permitted to store in your home directory (or, in some cases, other directories). If you exceed a quota, you will be unable to create new files or add to existing files until you reduce the total amount of disk space you're using to go below your quota.	+	'''CS ''UGRAD'' Net Users:''' Due to the number of students using the Ugrad Linux systems, on the '''''CS Ugrad Net''''', the Ugrad accounts ''are subject to '''disk quotas''''', which are limits on the total amount of data you are permitted to store in your home directory (or, in some cases, other directories). If you exceed a quota, you will be unable to create new files or add to existing files until you reduce the total amount of disk space you're using to go below your quota.

	'''CS ''GRAD'' Net Users:''' The '''''CS Grad/Research Net''''' does not currently have disk quotas enabled. But, we ask that users on the CS Grad/Research Net be mindful that you are ''sharing disk space with much of CS''. If you need to store large amounts of data on the CS Grad Net, please see: [[Storing Large Amounts Of Data On Our Systems]]		'''CS ''GRAD'' Net Users:''' The '''''CS Grad/Research Net''''' does not currently have disk quotas enabled. But, we ask that users on the CS Grad/Research Net be mindful that you are ''sharing disk space with much of CS''. If you need to store large amounts of data on the CS Grad Net, please see: [[Storing Large Amounts Of Data On Our Systems]]

← Older revision		Revision as of 15:10, 8 November 2024
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−	'''CS ''GRAD'' Net Users:''' The '''''CS Grad/Research Net''''' does not currently have disk quotas enabled. But, we ask that users on the CS Grad/Research Net be mindful that you are ''sharing disk space with much of CS''. If you need to store large amounts of data on the CS Grad Net, please see: [[Storing Large Amounts Of Data On Our Systems]]

		+	'''CS ''UGRAD'' Net Users:''' On the '''''CS Ugrad Net''''', the Ugrad accounts ''are subject to '''disk quotas''''', which are limits on the total amount of data you are permitted to store in your home directory (or, in some cases, other directories). If you exceed a quota, you will be unable to create new files or add to existing files until you reduce the total amount of disk space you're using to go below your quota.

−	'''CS ''~~UGRAD~~'' Net Users:''' ~~On the~~ '''''CS ~~Ugrad~~ Net''''', the ~~Ugrad accounts ''~~are ~~subject to '~~''disk ~~quotas'''~~''~~, which are limits on the total amount of data you are permitted to store in your home directory (or, in some cases, other directories)~~. If you ~~exceed a quota, you will be unable~~ to ~~create new files or add to existing files until you reduce~~ the ~~total amount of disk space you're using to go below your quota.~~	+	'''CS ''GRAD'' Net Users:''' The '''''CS Grad/Research Net''''' does not currently have disk quotas enabled. But, we ask that users on the CS Grad/Research Net be mindful that you are ''sharing disk space with much of CS''. If you need to store large amounts of data on the CS Grad Net, please see: [[Storing Large Amounts Of Data On Our Systems]]

	== How Quotas Work on the ''CS Ugrad Net'' ==		== How Quotas Work on the ''CS Ugrad Net'' ==

← Older revision		Revision as of 15:53, 30 September 2024
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	Another use of du can provide some additional detail of what files are taking up the most space:		Another use of du can provide some additional detail of what files are taking up the most space:

−	du -ha ~~/home/'accountname'~~\|sort -h \|tail	+	du -ha \|sort -h \|tail

← Older revision		Revision as of 15:50, 30 September 2024
Line 46:		Line 46:
	:<pre>du -h \| sort -h \| less</pre>		:<pre>du -h \| sort -h \| less</pre>

		+	Another use of du can provide some additional detail of what files are taking up the most space:
		+
		+	du -ha /home/xgao35 \|sort -h \|tail

@@ Line 1: / Line 1: @@
 '''CS ''GRAD'' Net Users:'''  The '''''CS Grad/Research Net''''' does not currently have disk quotas enabled.  But, we ask that users on the CS Grad/Research Net be mindful that you are ''sharing disk space with much of CS''.  If you need to store large amounts of data on the CS Grad Net, please see:  [[Storing Large Amounts Of Data On Our Systems]]
@@ Line 100: / Line 97: @@
 If the system insists that you're over quota but you can't figure out why, you can always email us at [mailto:support@cs.jhu.edu support@cs.jhu.edu] for assistance.
 == If You Need a Larger Quota on the ''CS Ugrad Net''==

@@ Line 33: / Line 33: @@
 If you're over quota, the only way to get back under is to delete or shrink files until your total disk usage is reduced below your limit.
-You can use the <code>du</code> command line program to see how much space individual files or directories are using.  One of the simplest ways to invoke it is to run the following command from your home directory:
+You can use the <code>du</code> command line program (short for "d"isk "u"sage) to see how much space individual files or directories are using.  One of the simplest ways to invoke it is to run the following command from your home directory:
   du -h | sort -h