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
10 More Discussions You Might Find Interesting
1. UNIX for Advanced & Expert Users
Hello Guru,
I am using a Pro*C program to prepare some reports
usaually the report file size is greater than 1GB.
But nowadays program is very slow.
I found out the program is taking much time to write data to file .....
is there any unix related reason to be slow down, the file writting... (2 Replies)
Discussion started by: bhagyaraj.p
2 Replies
2. Shell Programming and Scripting
Hi I am trying to do the following:
run a command that looks at a binary file and formats it
find the first line that has what I am looking for (there will be multiple)
print the name of the file that has it
So I am running this but ti's not working
ls -ltr *20080612* | while read line... (3 Replies)
Discussion started by: llsmr777
3 Replies
3. Shell Programming and Scripting
Hi
I want to split a file that has 'n' number of records into 16 small files.
Can some one suggest me how to do this using Unix script?
Thanks
rrkk (10 Replies)
Discussion started by: rrkks
10 Replies
4. Solaris
I got the following info from this forum, in regards to configuring my
Solaris x86 to link to the Net:
# echo 192.168.0.1 > /etc/defaultrouter
# route add default 192.168.0.1
# echo nameserver 192.168.0.1 >> /etc/resolv.conf
# cp /etc/nsswitch.dns /etc/nsswitch.conf
So I did... (1 Reply)
Discussion started by: newbie09
1 Replies
5. Red Hat
Hi, I facing an NFS problem. I have machine1, which has diskA and diskB, and machine2, both are Mandriva 2009 Linux.
When I am on machine2 and NFS mount both diskA and diskB of machine1. Writing to diskA is very fast, but writing to diskB is very slow. I tried different mount rsize and wsize... (2 Replies)
Discussion started by: hiepng
2 Replies
6. Red Hat
Hi guys,
I am trying something. I wrote a simple shell program to test something where continuous while loop writes on a file over the nfs. The time taken to write "hello" 3000 times take about 10 sec which is not right. Ideally it should take fraction of seconds. If I write on the local disk, it... (1 Reply)
Discussion started by: abhig
1 Replies
7. Shell Programming and Scripting
Anyone know the best way to check and see if a NAS filesystem is mounted on a linux box. I have no idea where to start :wall:. (2 Replies)
Discussion started by: d3mon_spawn
2 Replies
8. Solaris
there are few nas shares that would be mounted on the local zone. should i add an entry into the add an entry in zone.xml file so that it gets mounted automatically when the zone gets rebooted? or whats the correct way to get it mounted automatically when the zone reboots (2 Replies)
Discussion started by: chidori
2 Replies
9. Solaris
Hi,
I am facing chgrp issue for a directory on a NAS mounted partation.
issue details :
user1 belongs to two groups grp1(primary) and grp2(secondary) not able to change directory group to secondary.
WORKING on /tmp
#mkdir /tmp/a
#ls -ld /tmp/a
drwxr-xr-x 2 user1 grp1 117 Mar 24... (7 Replies)
Discussion started by: naveen.surisett
7 Replies
10. Red Hat
Dear friends,
I have been facing an issue with one of my red hat unix machine, suddenly lost to switch sudo users. My all colleagues lost to switch to access sudo users.
Then, we have realized its related to NAS issue which does not allowing to write the file. because of this we got so many... (1 Reply)
Discussion started by: Chand
1 Replies
LEARN ABOUT DEBIAN
rlm_expr
rlm_expr(5) FreeRADIUS Module rlm_expr(5)
NAME
rlm_expr - FreeRADIUS Module
DESCRIPTION
The rlm_expr module allows the server to perform limited mathematical calculations. This module is not called directly in any section, it
is invoked through the dynamic expansion of strings.
For example, some NAS boxes send a NAS-Port attribute which is a 32-bit number composed of port, card, and interface, all in different
bytes. To see these attributes split into pieces, you can have an entry in the 'users' file like:
DEFAULT
Vendor-Interface = `%{expr: %{NAS-Port} / (256 * 256)}`,
Vendor-Card = `%{expr: (%{NAS-Port} / 256) %% 256}`,
Vendor-Port = `%{expr: %{NAS-Port} %% 256}`
where the attributes Vendor-Interface, Vendor-Card, and Vendor-Port are attributes created by either you or a vendor-supplied dictionary.
The methematical operators supported by the expression module are:
+ addition
- subtraction
/ division
%% modulo remainder
* multiplication
& boolean AND
| boolean OR
() grouping of sub-expressions
NOTE: The modulo remainder operator is '%%', and not '%'. This is due to the '%' character being used as a special character for dynamic
translation.
NOTE: These operators do NOT have precedence. The parsing of the input string, and the calculation of the answer, is done strictly left to
right. If you wish to order the expressions, you MUST group them into sub-expression, as shown in the previous example.
All of the calculations are performed as unsigned 32-bit integers.
CONFIGURATION
modules {
...
expr {
}
...
}
...
instantiate {
...
expr
...
}
SECTIONS
instantiate
FILES
/etc/raddb/radiusd.conf
SEE ALSO
radiusd(8), radiusd.conf(5)
AUTHOR
Chris Parker, cparker@segv.org
5 February 2004 rlm_expr(5)