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Tuesday, October 4, 2011

\\Server\Share is not accessible

Source
You might not have permission to use this network resource. Contact the administrator of this server to find out if you have addess permissions.
Not enough server storage is available to process this command.
I used a disk imaging software called ShadowProtect from StorageCraft. Everything else is working but NO shares are working...from the server itself. Can't even get to \\server\sysvol.
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The server's configuration parameter "irpstacksize" is too small for the server to use a local device.  Please increase the value of this parameter.
You can increase the IRPStackSize value.
You must first add this value to the following key if it is not already present:
HKEY_LOCAL_MACHINE SYSTEM\CurrentControlSet\Services\LanmanServer\Parameters
Value Name: IRPStackSize
Data Type: DWORD
Default: 0x4
Maximum: 0xC
Increasing this value requires some memory from the non-allocated memory pool, but the impact should not be noticeable.
NOTE: It is not always advisable to set the IRPStackSize value to its maximum of 12. Generally, you should start the value at 4 and work your way up, increasing the value by 1 each time.
The problem may still occur if the value is too high
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To solve this problem open the Registry and navigate to the key
HKEY_LOCAL_MACHINE \ SYSTEM \ CurrentControlSet \ Services \ lanmanserver \
parameters and check if the string IRPStackSize exists. If it does not exist create a new Dword with the name IRPStackSize.
The default value for this Dword is 18 (decimal or hexadecimal??) and you should raise the value by adding 3 to it. 
Then the first changed value for IRPStackSize would be 21.
Reboot your computer and see if that solved the problem. If you still get the error message add 3 again and reboot your computer again.
The maximum size for IRPStackSize is decimal 50 or 0x32
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Data Type: DWORD
Default: 0x4
Maximum: 0xC
Increasing this value requires some memory from the non-allocated memory pool, but the impact should not be noticeable.
NOTE: It is not always advisable to set the IRPStackSize value to its maximum of 12. Generally, you should start the value at 4 and work your way up, increasing the value by 1 each time. The problem may still occur if the value is too high
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A note on the irpstacksize...the xp default is 15..and that entry in the registry can be removed/corrupted by norton antivirus and others
http://support.microsoft.com/default.aspx?...kb;EN-US;177078

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