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Top Forums UNIX for Dummies Questions & Answers Extremely slow file writing with many small files on mounted NAS Post 302946768 by bakunin on Friday 12th of June 2015 03:18:11 AM
Old 06-12-2015
There are only so many components involved, so the debugging should be straightforward:

How is the NAS connected to your system? I suppose it is an NFS-mount, no?

If so, the following has to be checked:

- network equipment: scp a larger file somewhere to test. Measure time.
- name resolution: put NAS server into /etc/hosts and have local files (=/etc/hosts) take precedence over DNS in /etc/resolv.conf
- mount options: look carefully how the FS from the NAS is mounted. Typical problems include CIO (concurrent I/O), user authentication via outside sources (i.e. user authorization via Kerberos and a slow, unresponsive Kerberos server) and the like.

- If you use NFSv4 (you shouldn't - it is crap) check the NFS-domain. It has to be set on every client and server.

I hope this helps.

bakunin
 

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RLM_IPPOOL_TOOL(8)					      System Manager's Manual						RLM_IPPOOL_TOOL(8)

NAME
rlm_ippool_tool - dump the contents of the FreeRadius ippool database files SYNOPSIS
If an ipaddress is specified then that address is used to limit the actions or output. rlm_ippool_tool [-a] [-c] [-o] [-v] session-db index-db [ipaddress] Mark the entry nasIP/nasPort as having ipaddress rlm_ippool_tool -n session-db index-db ipaddress nasIP nasPort Update old format database to new. rlm_ippool_tool -u session-db new-session-db DESCRIPTION
rlm_ippool_tool dumps the contents of the FreeRADIUS ippool databases for analyses or for removal of active (stuck?) entries. Or with the -n argument adds a usage entry to the FreeRADIUS ippool databases. OPTIONS
-a Print all active entries. -c Report number of active entries. -r Remove active entries. -v Verbose report of all entries. -o Assume old database format (nas/port pair, not md5 output). -n Mark the entry nasIP/nasPort as having ipaddress. -u Update old format database to new. EXAMPLES
Given the syntax in the FreeRadius radiusd.conf: ippool myippool { range-start = 192.0.2.0 range-stop = 192.0.2.255 [...] session-db = ${raddbdir}/ip-pool.db ip-index = ${raddbdir}/ip-index.db } To see the number of active entries in this pool, use: $ rlm_ippool_tool -c ip-pool.db ip-index.db 13 To see all active entries in this pool, use: $ rlm_ippool_tool -a ip-pool.db ip-index.db 192.0.2.5 192.0.2.82 192.0.2.244 192.0.2.57 192.0.2.120 192.0.2.27 [...] To see all information about the active entries in the use, use: $ rlm_ippool_tool -av ip-pool.db ip-index.db NAS:172.16.1.1 port:0x2e8 - ipaddr:192.0.2.5 active:1 cli:0 num:1 NAS:172.16.1.1 port:0x17c - ipaddr:192.0.2.82 active:1 cli:0 num:1 NAS:172.16.1.1 port:0x106 - ipaddr:192.0.2.244 active:1 cli:0 num:1 NAS:172.16.1.1 port:0x157 - ipaddr:192.0.2.57 active:1 cli:0 num:1 NAS:172.16.1.1 port:0x2d8 - ipaddr:192.0.2.120 active:1 cli:0 num:1 NAS:172.16.1.1 port:0x162 - ipaddr:192.0.2.27 active:1 cli:0 num:1 [...] To see only information of one entry, use: $ rlm_ippool_tool -v ip-pool.db ip-index.db 192.0.2.1 NAS:172.16.1.1 port:0x90 - ipaddr:192.0.2.1 active:0 cli:0 num:0 To add an IP address usage entry, use: $ rlm_ippool_tool -n ip-pool.db ip-index.db 192.0.0.1 172.16.1.1 0x90 rlm_ippool_tool: Allocating ip to nas/port: 172.16.1.1/144 rlm_ippool_tool: num: 1 rlm_ippool_tool: Allocated ip 192.0.2.1 to client on nas 172.16.1.1,port 144 SEE ALSO
radiusd(8) AUTHORS
Currently part of the FreeRADIUS Project (http://www.freeradius.org) Originally by Edwin Groothuis, edwin@mavetju.org (http://www.mavetju.org) Mailing list details are at http://www.freeradius.org/ RLM_IPPOOL_TOOL(8)
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