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Top Forums UNIX for Dummies Questions & Answers Extremely slow file writing with many small files on mounted NAS Post 302946656 by hicksd8 on Thursday 11th of June 2015 05:03:26 AM
Old 06-11-2015
If these are normal hardware RAID controllers (or some software RAID controllers for that matter) you might be able to set the cache; to write-through, write-around and/or write-back.

If the RAID controller cache was set to write-through then the controller will await completion each I/O before proceeding. In the case of millions of small files that would be very painful. You wouldn't see the same degradation with large files because each I/O is bigger.

Search Google (and of course THIS FORUM) for the pro's and con's of these cache settings.
 

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PPPD-RADIUS(8)						      System Manager's Manual						    PPPD-RADIUS(8)

NAME
radius.so - RADIUS authentication plugin for pppd(8) SYNOPSIS
pppd [ options ] plugin radius.so DESCRIPTION
The RADIUS plugin for pppd permits pppd to perform PAP, CHAP, MS-CHAP and MS-CHAPv2 authentication against a RADIUS server instead of the usual /etc/ppp/pap-secrets and /etc/ppp/chap-secrets files. The RADIUS plugin is built on a library called radiusclient which has its own configuration files (usually in /etc/radiusclient), consult those files for more information on configuring the RADIUS plugin OPTIONS
The RADIUS plugin introduces one additional pppd option: radius-config-file filename The file filename is taken as the radiusclient configuration file. If this option is not used, then the plugin uses /etc/radiusclient/radiusclient.conf as the configuration file. avpair attribute=value Adds an Attribute-Value pair to be passed on to the RADIUS server on each request. map-to-ifname Sets Radius NAS-Port attribute to number equal to interface name (Default) map-to-ttyname Sets Radius NAS-Port attribute value via libradiusclient library USAGE
To use the plugin, simply supply the plugin radius.so option to pppd, and edit /etc/radiusclient/radiusclient.conf appropriately. If you use the RADIUS plugin, the normal pppd authentication schemes (login, checking the /etc/ppp/*-secrets files) are skipped. The RADIUS server should assign an IP address to the peer using the RADIUS Framed-IP-Address attribute. SEE ALSO
pppd(8) pppd-radattr(8) AUTHOR
David F. Skoll <dfs@roaringpenguin.com> PPPD-RADIUS(8)
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