SAN attach Windows servers hang on boot

pts.
Tags:
HBA
SAN
Windows 2000 Server
Windows errors
Windows Server 2003
I have several IBM X series (342,345,346) servers with Windows 2000 and 2003 loaded. I am experiencing an issue with the server hanging when booting. This only happens when I have the server connected to the SAN. I am using Qlogic 2340 HBA connecting to Cisco 9509 SAN switches. I can see the HBA log into the switch when the server hangs so I know that it's not the flogi. If I pull the fiber cable or disable the switch port the server will continue to boot with no issue. I have verified that the server bios and the HBA bios are on current levels as well as the HBA driver. This issue happens mainly when rebooting from the OS. If the server is completely powered down and then restarted the problem usually does not happen

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What Kind of SAN are you using? Also, validate with the SAN manufacturer the compatibility of all firmware and driver levels – starting with the SAN conrollers, then the QLogic cards, the qlogic drivers and load balancing drivers if you are using them. Aditionally, I would INVESTIGATE increasing the following value to 0×78 if it is still set to the default: HKEY_Local_MachineCurrentControlSetSystemServicesDiskTimeOutValue.

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  • Ltimothy
    The value I mentioned, 0x78, is shorthand for 0x00000078, or 120 in decimal format.
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  • Psyklops
    What disk array are you running? Typically this might happen if the storage array is 'misconfigured' i.e. the host-port personality is set to another OS type other than what is compatible for Windows. The disk array controllers may have hung? Check your zoning also, it may be conflicting with other initiators (or another device) on the SAN as well. Try zoning your Windows HBA port with a single port from the disk array controller port(s). Try removing MS's MPIO multipathing software as well and see if it will boot and present the LUN's twice under Windows disk administrator. Update your drivers. Try MS's storport (or SCSIport) driver and make sure you're Service-Packed and patched to the latest supported revision from your SAN/storage provider.
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