What Can I Do To Improve Bandwidth / Uplink Speed Of Server

Oct 4, 2008

As per topic, what is the best method to do to the hardware to improve bandwidth / uplink speed of server?

I have a production server that is used for regular file serving.

P4 3.0Ghz
4GB RAM
500GB + 160GB + 160GB hard disk
2Mbps Dedicated + 10Mbps shared.

However, the most I can pulled through the whole server is always between 1.5Mbps - 3Mbps, anyway to pull the speed up to around 10Mbps should there be availability of bandwidth for me to burst?

For any informations, the hard disk is SATA 2.

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Recently we ordered a few servers with soft raid1, but seems the soft raid doesn't perform well, copy a 1G file, it takes about 40 seconds.

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I have run this command.
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1+0 records in
1+0 records out
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I'm using two ST31000528AS hard disks.

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When downloading data from ServerA on the switch to ServerB on
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ServerA -> ServerB = 650KB/sec.

ServerB -> ServerA = 11MB/sec.

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Each server has its own VLAN and a /29 IP block and both servers are physically connected to the 4006's 4148-RJ modules.

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This issue disappears if I change the /29 IP block on the server experiencing the slow downloads while still using the same VLANs and ports to a /29 not experiencing this issue.

When I change the /29 to one that is not affected the switch is capable of full wire speed which is approximately 11MB/sec sustained. When I change back to the old /29 the downloads are limited to about 650KB/sec max.

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replaced motherboards in affected servers

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This problem affects only a few servers on the switch however I have a similar problem on a larger group of servers as well.

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For example:

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LocalServerB on the 4006 with another /29 is downloading from RemoteServerA on the internet and is getting 3-8MB/sec sustained.

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Quote:

Originally Posted by httpd.conf

ServerTokens OS
ServerRoot "/etc/httpd"
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Quote:

Originally Posted by my.cnf

[mysqld]
datadir=/var/lib/mysql
socket=/var/lib/mysql/mysql.sock
# Default to using old password format for compatibility with mysql 3.x
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old_passwords=1

[mysql.server]
user=mysql
basedir=/var/lib

[mysqld_safe]
log-error=/var/log/mysqld.log
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