User manual HP STORAGEWORKS PCI-E U320 SCSI HOST BUS ADAPTER

[. . . ] HP StorageWorks U320e SCSI Host Bus Adapter User guide AH627-96001 Part number: AH627­96001 1st edition: March 2007 Legal and notice information © Copyright 2007 Hewlett-Packard Development Company, L. P. Valid license from HP required for possession, use or copying. Consistent with FAR 12. 21 and 1 12. 212, Commercial Computer Software, Computer Software Documentation, and Technical Data for Commercial Items are licensed to the U. S. Government under vendor's standard commercial license. [. . . ] · Verify that the latest version of the computer BIOS is installed. Use caution when updating the computer's BIOS. A mistake could leave the system in an unusable state. · Remove any non-vital PCI cards from the system to determine if there is a PCI bus conflict. · Disconnect any SCSI devices from the host adapter and reboot the computer. If this resolves the issue, check the SCSI cables and devices (see Investigating the SCSI cables and devices, page 31). · If the computer still does not boot, try installing the host adapter in a different computer. If the host adapter works in the new computer, try updating the flash on the host adapter as described in "Updating firmware" on page 19. Then try it again in the original computer. · If it still fails, report this as a possible interoperability issue between the host adapter and the computer. · If the problem follows the host adapter, replace it with a new adapter. Disconnect all devices from the adapter and reboot the system. If the system still freezes after disconnecting the SCSI devices: · Remove any non-vital PCI cards from the system to determine if there is a PCI bus conflict. · Remove the SCSI host adapter and test it in a different computer (not the same model). If the card works properly, enter the ATTO ExpressPCI Utility during the system BIOS scan by hitting Ctrl-Z when prompted. Enter the host adapter configuration menu and disable the BIOS. There may be a BIOS conflict between the ATTO host adapter and the original computer. Place the host adapter back into the original machine and reboot. · If this resolves the issue, report this is as a BIOS conflict. Disabling the BIOS will only prevent the computer from booting from an external drive connected to the host adapter. · If the computer still hangs, replace the host adapter with a new one. If the system no longer freezes after disconnecting the SCSI devices, investigate the SCSI cables and devices (see Investigating the SCSI cables and devices, page 31). [. . . ] An initiating device; a component which originates a command Creates information units (IUs) from commands, data, status information, etc. which are passed as synchronous transfers. Maximizes bus use, minimizes command overhead and allows multiple commands to be transferred in a single connection A method that verifies the accuracy of data transmitted over the SCSI bus by adding one bit in the transfer to make the sum of all the bits either odd or even (for odd or even parity). An error message occurs if the sum is not correct. [. . . ]