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Full Discussion: No Paging Space Available
Operating Systems AIX No Paging Space Available Post 302867859 by tugger on Friday 25th of October 2013 06:39:25 AM
Old 10-25-2013
No Paging Space Available

Whilst perfoming some tests on lvm's I managed to crash our test box. No real problem as it is only used by our tech team.

however I would like to know why this was actually caused as the task being performed at the time was one which I though would not have any impact.

Using dd I was creating 10 x 2gb files. The filesystem these were being created in was 200gb in size and had 99% free.

The errors I got before the system became unresponsive where:

stdout:
Code:
dd: 0511-051 The read failed.
: There is not enough space in the file system.

errpt:
Code:
8527F6F4   1024165613 P S SYSVMM         NO PAGING SPACE AVAILABLE

The script being run was quite a simple script, which performed a count (to 10) and for each count it wrote a file to a filesystem:

Code:
nohup time dd if=/dev/zero of=/filesystem/file_$count bs=512m count=4 &


The system has 10GB of Memory and a pagespace of 2G. Why would the dd cause the system to become unresponsive?

Moderator's Comments:
Mod Comment edit by bakunin: please use CODE-tags for terminal output, code and data. Thank you.

Last edited by bakunin; 10-25-2013 at 09:03 AM..
 

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Locale::Codes::LangFam(3)				User Contributed Perl Documentation				 Locale::Codes::LangFam(3)

NAME
Locale::Codes::LangFam - standard codes for language extension identification SYNOPSIS
use Locale::Codes::LangFam; $lext = code2langfam('apa'); # $lext gets 'Apache languages' $code = langfam2code('Apache languages'); # $code gets 'apa' @codes = all_langfam_codes(); @names = all_langfam_names(); DESCRIPTION
The "Locale::Codes::LangFam" module provides access to standard codes used for identifying language families, such as those as defined in ISO 639-5. Most of the routines take an optional additional argument which specifies the code set to use. If not specified, the default ISO 639-5 language family codes will be used. SUPPORTED CODE SETS
There are several different code sets you can use for identifying language families. A code set may be specified using either a name, or a constant that is automatically exported by this module. For example, the two are equivalent: $lext = code2langfam('apa','alpha'); $lext = code2langfam('apa',LOCALE_LANGFAM_ALPHA); The codesets currently supported are: alpha This is the set of three-letter (lowercase) codes from ISO 639-5 such as 'apa' for Apache languages. This is the default code set. ROUTINES
code2langfam ( CODE [,CODESET] ) langfam2code ( NAME [,CODESET] ) langfam_code2code ( CODE ,CODESET ,CODESET2 ) all_langfam_codes ( [CODESET] ) all_langfam_names ( [CODESET] ) Locale::Codes::LangFam::rename_langfam ( CODE ,NEW_NAME [,CODESET] ) Locale::Codes::LangFam::add_langfam ( CODE ,NAME [,CODESET] ) Locale::Codes::LangFam::delete_langfam ( CODE [,CODESET] ) Locale::Codes::LangFam::add_langfam_alias ( NAME ,NEW_NAME ) Locale::Codes::LangFam::delete_langfam_alias ( NAME ) Locale::Codes::LangFam::rename_langfam_code ( CODE ,NEW_CODE [,CODESET] ) Locale::Codes::LangFam::add_langfam_code_alias ( CODE ,NEW_CODE [,CODESET] ) Locale::Codes::LangFam::delete_langfam_code_alias ( CODE [,CODESET] ) These routines are all documented in the Locale::Codes::API man page. SEE ALSO
Locale::Codes The Locale-Codes distribution. Locale::Codes::API The list of functions supported by this module. http://www.loc.gov/standards/iso639-5/id.php ISO 639-5 . AUTHOR
See Locale::Codes for full author history. Currently maintained by Sullivan Beck (sbeck@cpan.org). COPYRIGHT
Copyright (c) 2011-2013 Sullivan Beck This module is free software; you can redistribute it and/or modify it under the same terms as Perl itself. perl v5.16.3 2013-02-27 Locale::Codes::LangFam(3)
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