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Question : Problem: WTF's up with my iSCSI network config ???
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Experts:
I just purchased an EMC AX4-5i dual-SP SAN appliance; two racks, one for SAS drives and the other with SATA drives. I'm just setting up the appliance and I'm stuck, hoping you all can help me figure something out.
If you look at the attached file you'll notice my vanilla setup: 1 server with 3 NICs connected to a pair of GigE switches configured in a meshed network connecting a pair of SP units, each with two iSCSI ports of their own.
The problem I'm having is that on the server i can only ping one of two switches and only two of four iSCSI ports
C:\Program Files\Support Tools>ipconfig /all
Windows IP Configuration
Host Name . . . . . . . . . . . . : galapagos
Primary Dns Suffix . . . . . . . : xxx.local
Node Type . . . . . . . . . . . . : Unknown
IP Routing Enabled. . . . . . . . : Yes
WINS Proxy Enabled. . . . . . . . : Yes
DNS Suffix Search List. . . . . . : xxx.local
Ethernet adapter 192.168.253.98:
Connection-specific DNS Suffix . : xxx.local
Description . . . . . . . . . . . : Intel(R) PRO/1000 MT Server Adapter
Physical Address. . . . . . . . . : 00-04-23-AB-6A-0B
DHCP Enabled. . . . . . . . . . . : No
IP Address. . . . . . . . . . . . : 192.168.253.98
Subnet Mask . . . . . . . . . . . : 255.255.255.0
Default Gateway . . . . . . . . . :
Ethernet adapter 192.168.253.99:
Connection-specific DNS Suffix . :
Description . . . . . . . . . . . : Intel(R) PRO/1000 MT Server Adapter #2
Physical Address. . . . . . . . . : 00-04-23-AB-6A-0C
DHCP Enabled. . . . . . . . . . . : No
IP Address. . . . . . . . . . . . : 192.168.253.99
Subnet Mask . . . . . . . . . . . : 255.255.255.0
Default Gateway . . . . . . . . . :
Ethernet adapter 192.168.10.25:
Connection-specific DNS Suffix . :
Description . . . . . . . . . . . : HP NC3163 Fast Ethernet NIC
Physical Address. . . . . . . . . : 00-50-8B-EB-15-1C
DHCP Enabled. . . . . . . . . . . : No
IP Address. . . . . . . . . . . . : 192.168.10.25
Subnet Mask . . . . . . . . . . . : 255.255.255.0
Default Gateway . . . . . . . . . : 192.168.10.1
DNS Servers . . . . . . . . . . . : 192.168.10.13
192.168.10.25
Primary WINS Server . . . . . . . : 192.168.10.13
Secondary WINS Server . . . . . . : 192.168.10.25
C:\Program Files\Support Tools>ping 192.168.253.199
Pinging 192.168.253.199 with 32 bytes of data:
Reply from 192.168.253.199: bytes=32 time=3ms TTL=64
Reply from 192.168.253.199: bytes=32 time=2ms TTL=64
Reply from 192.168.253.199: bytes=32 time=1ms TTL=64
Reply from 192.168.253.199: bytes=32 time=2ms TTL=64
Ping statistics for 192.168.253.199:
Packets: Sent = 4, Received = 4, Lost = 0 (0% loss),
Approximate round trip times in milli-seconds:
Minimum = 1ms, Maximum = 3ms, Average = 2ms
C:\Program Files\Support Tools>ping 192.168.253.198
Pinging 192.168.253.198 with 32 bytes of data:
Request timed out.
Request timed out.
Request timed out.
Request timed out.
Ping statistics for 192.168.253.198:
Packets: Sent = 4, Received = 0, Lost = 4 (100% loss),
C:\Program Files\Support Tools>ping 192.168.253.200
Pinging 192.168.253.200 with 32 bytes of data:
Reply from 192.168.253.200: bytes=32 time<1ms TTL=64
Reply from 192.168.253.200: bytes=32 time<1ms TTL=64
Reply from 192.168.253.200: bytes=32 time<1ms TTL=64
Reply from 192.168.253.200: bytes=32 time<1ms TTL=64
Ping statistics for 192.168.253.200:
Packets: Sent = 4, Received = 4, Lost = 0 (0% loss),
Approximate round trip times in milli-seconds:
Minimum = 0ms, Maximum = 0ms, Average = 0ms
C:\Program Files\Support Tools>ping 192.168.253.201
Pinging 192.168.253.201 with 32 bytes of data:
Request timed out.
Request timed out.
Request timed out.
Request timed out.
Ping statistics for 192.168.253.201:
Packets: Sent = 4, Received = 0, Lost = 4 (100% loss),
C:\Program Files\Support Tools>ping 192.168.253.202
Pinging 192.168.253.202 with 32 bytes of data:
Reply from 192.168.253.202: bytes=32 time=1ms TTL=64
Reply from 192.168.253.202: bytes=32 time<1ms TTL=64
Reply from 192.168.253.202: bytes=32 time<1ms TTL=64
Reply from 192.168.253.202: bytes=32 time<1ms TTL=64
Ping statistics for 192.168.253.202:
Packets: Sent = 4, Received = 4, Lost = 0 (0% loss),
Approximate round trip times in milli-seconds:
Minimum = 0ms, Maximum = 1ms, Average = 0ms
C:\Program Files\Support Tools>ping 192.168.253.203
Pinging 192.168.253.203 with 32 bytes of data:
Request timed out.
Request timed out.
Request timed out.
Request timed out.
Ping statistics for 192.168.253.203:
Packets: Sent = 4, Received = 0, Lost = 4 (100% loss),
C:\Program Files\Support Tools>
So before I go any further and start configuring iSCSI initiators or LUNs, etc...I wanted to clear up this networking mystery
Thanks,
juckyt
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Answer : Problem: WTF's up with my iSCSI network config ???
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Yer tiz... paste this into a new vb projects code window. If the server doesn't exist the .final file will probably be empty.
I couldn't test it properly because I haven't got that EXE. Make sure it works with "echo" first, and then switch it over from "echo" to "srvinfo"
Option Explicit
Option Compare Text
Private Sub Form_Load()
Dim sFile As String
Dim sBuffer As String
Dim sList() As String
Dim sComputer As String
Dim lCount As Long
sFile = "c:\servlist.txt"
sBuffer = ReadTextFile(sFile, False)
sList = Split(sBuffer, vbCrLf)
For lCount = 0 To UBound(sList)
sComputer = Trim$(sList(lCount))
If sList(lCount) <> "" Then
ProcessComputer sList(lCount)
End If
Next
MsgBox "Phase 1 done, click OK when all files have returned", vbInformation
Dim scr As Object
Dim fld As Object
Dim fil As Object
Set scr = CreateObject("scripting.filesystemobject")
Set fld = scr.getfolder("c:\temp")
For Each fil In fld.Files
If Right$(fil.Name, 4) = ".LOG" Then
CleanFile fil.Path
End If
Next
MsgBox "Finished", vbInformation
End Sub
Private Sub ProcessComputer(sComputer As String)
Debug.Print sComputer
Shell "command.com /c echo \\" & sComputer & " > c:\temp\" & sComputer & ".log"
'Shell "c:\windows\srvinfo.exe -d \\" & sComputer & " > c:\temp\" & scomputer & ".log"
End Sub
Private Sub CleanFile(sPath As String)
Dim sBuffer As String
Dim sList() As String
Dim sText As String
Dim sBufOut As String
Dim bReading As Boolean
Dim lCount As Long
bReading = False
sBuffer = ReadTextFile(sPath, False)
sBufOut = ""
sList = Split(sBuffer, vbCrLf)
For lCount = 0 To UBound(sList)
sText = Trim$(sList(lCount))
If sText = "Services:" Then
bReading = True
ElseIf Left$(sText, 8) = "Network " Then
bReading = False
Exit For
End If
If bReading Then
sBufOut = sBufOut & sText & vbCrLf
End If
Next
WriteTextFile sPath & ".final", sBufOut, False
End Sub
Private Function ReadTextFile(sName As String, Optional bUnicode As Boolean = True, Optional lMaxRows As Long = 0) As String
Dim scr As Object
Dim txt As Object
Dim sBuffer As String
Dim lCount As Long
If sName = "" Then
Err.Raise 32426, , "File name supplied to ReadTextFile is blank. Please supply a valid file name"
End If
Set scr = CreateObject("Scripting.FileSystemObject")
Set txt = scr.OpenTextFile(sName, , , bUnicode)
If lMaxRows > 0 Then
For lCount = 1 To lMaxRows
If txt.AtEndOfStream() Then Exit For
sBuffer = sBuffer & txt.ReadLine() & vbCrLf
Next
ReadTextFile = sBuffer
Else
If txt.AtEndOfStream() Then
ReadTextFile = ""
Else
ReadTextFile = txt.ReadAll()
End If
End If
txt.Close
Set txt = Nothing
Set scr = Nothing
End Function
Public Sub WriteTextFile(sName As String, sContent As String, Optional bUnicode As Boolean = True)
Dim scr As Object
Dim txt As Object
Set scr = CreateObject("Scripting.FileSystemObject")
Set txt = scr.CreateTextFile(sName, True, bUnicode)
txt.Write sContent
txt.Close
Set txt = Nothing
Set scr = Nothing
End Sub
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