We finally pinned down the cause of the lost packets. The NIC on the client system was configured to autonegotiate Ethernet settings. As sometimes happens, the negotiation process finished with the client system and the Ethernet switch using different duplex settings.
It is still not clear why the performance impact was so much greater than it had been with the z/OS server. It may have been the result of differing workloads. The problem showed up while we were running the initial backup to the Linux TSM server, copying nearly every file on the client system over the network. The pattern of IP traffic for such an initial backup is presumably different from the pattern for subsequent incremental backups. ---------------------------------------------------------------------- For LINUX-390 subscribe / signoff / archive access instructions, send email to [EMAIL PROTECTED] with the message: INFO LINUX-390 or visit http://www.marist.edu/htbin/wlvindex?LINUX-390
