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Operating Systems AIX Limitation for SFTP on AIX number of sessions Post 302597269 by zxmaus on Thursday 9th of February 2012 09:18:59 PM
Old 02-09-2012
are your 500 files coming from 1 source or 500 ?

You can sftp with wildcards like
Code:
sftp mybox:/dumps/*dump* me@yourbox:/some/destinationdirectory/

and the likelyhood that this job will finish without issues is a lot higher than trying to transfer each file in its very own sftp process. You will overwhelm the recieve buffer who has to put the tcp ip pieces recieved together at the destination and as a result it will just reject anything it cannot handle.
4 sftp streams with 125 files each will be a lot more effective than 500 streams with one file each.
Regards
zxmaus
 

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sftp-server(1M)                                           System Administration Commands                                           sftp-server(1M)

NAME
sftp-server - SFTP server subsystem SYNOPSIS
/usr/lib/ssh/sftp-server DESCRIPTION
sftp-server implements the server side of the SSH File Transfer Protocol as defined in the IETF draft-ietf-secsh-filexfer. sftp-server is a subsystem for sshd(1M) and must not be run directly. There are no options or config settings. To enable the sftp-server subsystem for sshd add the following to /etc/ssh/sshd_config: Subsystem sftp /usr/lib/ssh/sftp-server See sshd_config(4) for a description of the format and contents of that file. There is no relationship between the protocol used by sftp-server and the FTP protocol (RFC 959) provided by in.ftpd. EXIT STATUS
The following exit values are returned: 0 Successful completion. >0 An error occurred. FILES
/usr/lib/sftp-server ATTRIBUTES
See attributes(5) for descriptions of the following attributes: +-----------------------------+-----------------------------+ | ATTRIBUTE TYPE | ATTRIBUTE VALUE | +-----------------------------+-----------------------------+ |Availability |SUNWsshdu | +-----------------------------+-----------------------------+ |Interface Stability |Evolving | +-----------------------------+-----------------------------+ SEE ALSO
sftp(1), ssh(1), ssh-add(1), ssh-keygen(1), sshd(1M), sshd_config(4), attributes(5) To view license terms, attribution, and copyright for OpenSSH, the default path is /var/sadm/pkg/SUNWsshdr/install/copyright. If the Solaris operating environment has been installed anywhere other than the default, modify the given path to access the file at the installed location. AUTHOR
Markus Friedl SunOS 5.10 30 Jul 2003 sftp-server(1M)
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