asked on

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

Darius Ghassem

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

manelson05

ASKER

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

Darius Ghassem

You could have a DNS issue. Is your clients and server only pointing to DCs for DNS?

Post ipconfig /all from client and DC

manelson05

ASKER

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>

manelson05

ASKER

I just noticed node type on one dc is Hybrid the other is unknown, would that factor in?

Darius Ghassem

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

manelson05

ASKER

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>

ASKER CERTIFIED SOLUTION

Darius Ghassem

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manelson05

ASKER

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.

Darius Ghassem

Find a 300MB file copy the file to the NAS then copy the file back to the local computer are the speeds the same?

manelson05

ASKER

We discovered we have a dead perc6i controller battery, changing this out Tuesday will post if this was the culprit.

manelson05

ASKER

Will test today and post.