Internal network resources are slow, becoming slower

4 months back I rebuilt our entrie network infrastructure.

The core of data exchange is a MD3000 NAS that is connected to a Perc6i raid card in a dell 1950 server with dual Quad Xeons and 8Gb ram running Server 2008 R2

Initially all were pleased iwth the performance and speed. The past few months things seem to be gradually getting slower.As of last Friday I am told things are much slower.

I have a 3-5 users who run solidworks (CAD program) from there workstations and access the drawings and assemblies off the NAS.


I have a single Gb network card that goes to a gigabit switch, there are no errors on the switch or the network card. There is another NIC I could team with, not sure on the benefit of that.

The only thing else on this server which is a domain controller is DNS and DHCP and AD and VIPRE business which contains a small SQL 05 database which normally uses about 325Mb of memory.

Apart from that I cannot think of anything else, do the experts have suggestions?


thank you


Mark
manelson05Asked:
Who is Participating?
I wear a lot of hats...

"The solutions and answers provided on Experts Exchange have been extremely helpful to me over the last few years. I wear a lot of hats - Developer, Database Administrator, Help Desk, etc., so I know a lot of things but not a lot about one thing. Experts Exchange gives me answers from people who do know a lot about one thing, in a easy to use platform." -Todd S.

Darius GhassemCommented:
Do you have Antivirus installed? If you do make sure you are excluding commonly used files.

Second make sure you have the most updated network drivers installed. Disable TCP Checksum

http://support.microsoft.com/kb/951037
http://technet.microsoft.com/en-us/library/gg162682(v=ws.10).aspx

Disable Auto-tuning as well.

http://support.microsoft.com/kb/934430
0
manelson05Author Commented:
AV not a factor anymore
Driver is up to date
Chimney disabled, windows firewall is OFF via GPO
I ran these on the domain contorller that the NAS is attached too.


Do you think there is a DNS issue of some sort?

I asked a user to
0
Darius GhassemCommented:
You could have a DNS issue. Is your clients and server only pointing to DCs for DNS?

Post ipconfig /all from client and DC
0
Ultimate Tool Kit for Technology Solution Provider

Broken down into practical pointers and step-by-step instructions, the IT Service Excellence Tool Kit delivers expert advice for technology solution providers. Get your free copy now.

manelson05Author Commented:
I have listed my laptop,  as well as DC01 and DC02
On a side note one of the problem computers shows TTL 64 when I ping it, all others show 128.

My laptop:
Microsoft Windows [Version 6.1.7601]
Copyright (c) 2009 Microsoft Corporation.  All rights reserved.

C:\Users\mnelson.MSG>ipconfig /all

Windows IP Configuration

   Host Name . . . . . . . . . . . . : mnelson-pc
   Primary Dns Suffix  . . . . . . . : msg.local
   Node Type . . . . . . . . . . . . : Hybrid
   IP Routing Enabled. . . . . . . . : No
   WINS Proxy Enabled. . . . . . . . : No
   DNS Suffix Search List. . . . . . : msg.local

Wireless LAN adapter Wireless Network Connection 3:

   Media State . . . . . . . . . . . : Media disconnected
   Connection-specific DNS Suffix  . :
   Description . . . . . . . . . . . : Microsoft Virtual WiFi Miniport Adapter #
2
   Physical Address. . . . . . . . . : A0-88-B4-4E-10-79
   DHCP Enabled. . . . . . . . . . . : No
   Autoconfiguration Enabled . . . . : Yes

Wireless LAN adapter Wireless Network Connection 2:

   Media State . . . . . . . . . . . : Media disconnected
   Connection-specific DNS Suffix  . :
   Description . . . . . . . . . . . : Microsoft Virtual WiFi Miniport Adapter
   Physical Address. . . . . . . . . : A0-88-B4-4E-10-79
   DHCP Enabled. . . . . . . . . . . : Yes
   Autoconfiguration Enabled . . . . : Yes

Wireless LAN adapter Wireless Network Connection:

   Media State . . . . . . . . . . . : Media disconnected
   Connection-specific DNS Suffix  . : msg.local
   Description . . . . . . . . . . . : Intel(R) Centrino(R) Advanced-N 6205
   Physical Address. . . . . . . . . : A0-88-B4-4E-10-78
   DHCP Enabled. . . . . . . . . . . : Yes
   Autoconfiguration Enabled . . . . : Yes

Ethernet adapter Local Area Connection:

   Connection-specific DNS Suffix  . : msg.local
   Description . . . . . . . . . . . : Intel(R) 82579LM Gigabit Network Connecti
on
   Physical Address. . . . . . . . . : F0-DE-F1-61-12-D7
   DHCP Enabled. . . . . . . . . . . : Yes
   Autoconfiguration Enabled . . . . : Yes
   IPv4 Address. . . . . . . . . . . : 192.168.168.45(Preferred)
   Subnet Mask . . . . . . . . . . . : 255.255.255.0
   Lease Obtained. . . . . . . . . . : Wednesday, March 21, 2012 8:53:03 AM
   Lease Expires . . . . . . . . . . : Friday, March 23, 2012 8:53:02 AM
   Default Gateway . . . . . . . . . : 192.168.168.168
   DHCP Server . . . . . . . . . . . : 192.168.168.10
   DNS Servers . . . . . . . . . . . : 192.168.168.20
                                       192.168.168.10
   NetBIOS over Tcpip. . . . . . . . : Enabled

Tunnel adapter isatap.msg.local:

   Media State . . . . . . . . . . . : Media disconnected
   Connection-specific DNS Suffix  . : msg.local
   Description . . . . . . . . . . . : Microsoft ISATAP Adapter
   Physical Address. . . . . . . . . : 00-00-00-00-00-00-00-E0
   DHCP Enabled. . . . . . . . . . . : No
   Autoconfiguration Enabled . . . . : Yes

Tunnel adapter Local Area Connection* 12:

   Media State . . . . . . . . . . . : Media disconnected
   Connection-specific DNS Suffix  . :
   Description . . . . . . . . . . . : Microsoft 6to4 Adapter
   Physical Address. . . . . . . . . : 00-00-00-00-00-00-00-E0
   DHCP Enabled. . . . . . . . . . . : No
   Autoconfiguration Enabled . . . . : Yes

Tunnel adapter Teredo Tunneling Pseudo-Interface:

   Media State . . . . . . . . . . . : Media disconnected
   Connection-specific DNS Suffix  . :
   Description . . . . . . . . . . . : Teredo Tunneling Pseudo-Interface
   Physical Address. . . . . . . . . : 00-00-00-00-00-00-00-E0
   DHCP Enabled. . . . . . . . . . . : No
   Autoconfiguration Enabled . . . . : Yes

C:\Users\mnelson.MSG>


DNS01#################################################
Microsoft Windows [Version 6.1.7601]
Copyright (c) 2009 Microsoft Corporation.  All rights reserved.

C:\Users\mnelson-a>ipconfig /all

Windows IP Configuration

   Host Name . . . . . . . . . . . . : MSG-DC
   Primary Dns Suffix  . . . . . . . : msg.local
   Node Type . . . . . . . . . . . . : Hybrid
   IP Routing Enabled. . . . . . . . : No
   WINS Proxy Enabled. . . . . . . . : No
   DNS Suffix Search List. . . . . . : msg.local

Ethernet adapter Local Area Connection 2:

   Media State . . . . . . . . . . . : Media disconnected
   Connection-specific DNS Suffix  . :
   Description . . . . . . . . . . . : Broadcom BCM5708C NetXtreme II GigE (NDIS
 VBD Client) #50
   Physical Address. . . . . . . . . : 00-1E-C9-B2-41-05
   DHCP Enabled. . . . . . . . . . . : Yes
   Autoconfiguration Enabled . . . . : Yes

Ethernet adapter Ethernet:

   Connection-specific DNS Suffix  . :
   Description . . . . . . . . . . . : Broadcom BCM5708C NetXtreme II GigE (NDIS
 VBD Client) #5
   Physical Address. . . . . . . . . : 00-1E-C9-B2-41-03
   DHCP Enabled. . . . . . . . . . . : No
   Autoconfiguration Enabled . . . . : Yes
   Link-local IPv6 Address . . . . . : fe80::31ee:f16f:cc9c:8a1d%10(Preferred)
   IPv4 Address. . . . . . . . . . . : 192.168.168.20(Preferred)
   Subnet Mask . . . . . . . . . . . : 255.255.255.0
   Default Gateway . . . . . . . . . : 192.168.168.168
   DHCPv6 IAID . . . . . . . . . . . : 234888905
   DHCPv6 Client DUID. . . . . . . . : 00-01-00-01-16-01-B7-C0-00-1E-C9-B2-41-03

   DNS Servers . . . . . . . . . . . : ::1
                                       192.168.168.20
                                       192.168.168.10
                                       127.0.0.1
   NetBIOS over Tcpip. . . . . . . . : Enabled

Tunnel adapter isatap.{5F5D3C65-3ACC-4B84-BEB2-8742BE0103A0}:

   Media State . . . . . . . . . . . : Media disconnected
   Connection-specific DNS Suffix  . :
   Description . . . . . . . . . . . : Microsoft ISATAP Adapter
   Physical Address. . . . . . . . . : 00-00-00-00-00-00-00-E0
   DHCP Enabled. . . . . . . . . . . : No
   Autoconfiguration Enabled . . . . : Yes

Tunnel adapter isatap.{410A5367-79BF-4D35-B4E9-6694450430ED}:

   Media State . . . . . . . . . . . : Media disconnected
   Connection-specific DNS Suffix  . :
   Description . . . . . . . . . . . : Microsoft ISATAP Adapter #2
   Physical Address. . . . . . . . . : 00-00-00-00-00-00-00-E0
   DHCP Enabled. . . . . . . . . . . : No
   Autoconfiguration Enabled . . . . : Yes

Tunnel adapter Teredo Tunneling Pseudo-Interface:

   Media State . . . . . . . . . . . : Media disconnected
   Connection-specific DNS Suffix  . :
   Description . . . . . . . . . . . : Teredo Tunneling Pseudo-Interface
   Physical Address. . . . . . . . . : 00-00-00-00-00-00-00-E0
   DHCP Enabled. . . . . . . . . . . : No
   Autoconfiguration Enabled . . . . : Yes

C:\Users\mnelson-a>

DNS02##################################################
Microsoft Windows [Version 6.0.6002]
Copyright (c) 2006 Microsoft Corporation.  All rights reserved.

C:\Users\mnelson-a>ipconfig /all

Windows IP Configuration

   Host Name . . . . . . . . . . . . : MSG-PDC
   Primary Dns Suffix  . . . . . . . : msg.local
   Node Type . . . . . . . . . . . . : Unknown
   IP Routing Enabled. . . . . . . . : No
   WINS Proxy Enabled. . . . . . . . : No
   DNS Suffix Search List. . . . . . : msg.local

Ethernet adapter Local Area Connection:

   Connection-specific DNS Suffix  . :
   Description . . . . . . . . . . . : Broadcom BCM5709C NetXtreme II GigE (NDIS
 VBD Client)
   Physical Address. . . . . . . . . : 00-24-E8-71-24-6B
   DHCP Enabled. . . . . . . . . . . : No
   Autoconfiguration Enabled . . . . : Yes
   Link-local IPv6 Address . . . . . : fe80::2527:78e8:7c73:f12d%10(Preferred)
   IPv4 Address. . . . . . . . . . . : 192.168.168.10(Preferred)
   Subnet Mask . . . . . . . . . . . : 255.255.255.0
   Default Gateway . . . . . . . . . : 192.168.168.168
   DHCPv6 IAID . . . . . . . . . . . : 251667688
   DHCPv6 Client DUID. . . . . . . . : 00-01-00-01-12-05-3F-1A-00-24-E8-71-24-6B

   DNS Servers . . . . . . . . . . . : ::1
                                       192.168.168.10
                                       192.168.168.20
   NetBIOS over Tcpip. . . . . . . . : Enabled

Tunnel adapter Local Area Connection* 9:

   Media State . . . . . . . . . . . : Media disconnected
   Connection-specific DNS Suffix  . :
   Description . . . . . . . . . . . : isatap.{B9FCEB24-850E-4D6F-9EE1-80DC403A2
58E}
   Physical Address. . . . . . . . . : 00-00-00-00-00-00-00-E0
   DHCP Enabled. . . . . . . . . . . : No
   Autoconfiguration Enabled . . . . : Yes

C:\Users\mnelson-a>
0
manelson05Author Commented:
I just noticed node type on one dc is Hybrid the other is unknown, would that factor in?
0
Darius GhassemCommented:
On client make sure your wired network card is listed first in Binding order.

On DCs make sure your primary network card is listed first in Binding order.

Disable all unused network cards on DCs.

Remove 127.0.0.1

http://theregime.wordpress.com/2008/03/04/how-to-setview-the-nic-bind-order-in-windows/

Run ipconfig /flushdns, ipconfig /registerdns and dcdiag /fix on DC after making changes.

On client run ipconfig /flushdns, ipconfig /registerdns
0
manelson05Author Commented:
I've done all of the above, performance off the NAS is just slow.

This is the output of me pinging the computer who is reporting the worst performance, I ntoiced TTL is 64, why not 128? It is a windows 7 Pro workstation.

Microsoft Windows [Version 6.1.7601]
Copyright (c) 2009 Microsoft Corporation.  All rights reserved.

C:\Users\mnelson.MSG>ping jpitts-pc

Pinging jpitts-pc.msg.local [192.168.168.30] with 32 bytes of data:
Reply from 192.168.168.30: bytes=32 time=2ms TTL=64
Reply from 192.168.168.30: bytes=32 time=1ms TTL=64
Reply from 192.168.168.30: bytes=32 time=1ms TTL=64
Reply from 192.168.168.30: bytes=32 time=1ms TTL=64

Ping statistics for 192.168.168.30:
    Packets: Sent = 4, Received = 4, Lost = 0 (0% loss),
Approximate round trip times in milli-seconds:
    Minimum = 1ms, Maximum = 2ms, Average = 1ms

C:\Users\mnelson.MSG>
0
Darius GhassemCommented:
0

Experts Exchange Solution brought to you by

Your issues matter to us.

Facing a tech roadblock? Get the help and guidance you need from experienced professionals who care. Ask your question anytime, anywhere, with no hassle.

Start your 7-day free trial
manelson05Author Commented:
I'm not sure what is going on at this point. have followd all guides.

We have a NAS here it is a MD1000 not MD3000, I am wondering if somehting is wrong with it.
You can retrieve files but the 24Mb files the machine operator is pulling over use to just pop open. this is really strange.
0
Darius GhassemCommented:
Find a 300MB file copy the file to the NAS then copy the file back to the local computer are the speeds the same?
0
manelson05Author Commented:
We discovered we have a dead perc6i controller battery, changing this out Tuesday will post if this was the culprit.
0
manelson05Author Commented:
Will test today and post.
0
It's more than this solution.Get answers and train to solve all your tech problems - anytime, anywhere.Try it for free Edge Out The Competitionfor your dream job with proven skills and certifications.Get started today Stand Outas the employee with proven skills.Start learning today for free Move Your Career Forwardwith certification training in the latest technologies.Start your trial today
Networking

From novice to tech pro — start learning today.

Question has a verified solution.

Are you are experiencing a similar issue? Get a personalized answer when you ask a related question.

Have a better answer? Share it in a comment.