Hi Lee, >Is anyone running a TSM server (not client) on Linux on Z? Any observations?
Yes, we are. Using a DS8300 for disk storage, a TS3500/LTO3 for primary tape pools and a TS3310/LOT4 for copy pools and a 4x GbE LACP OSA bundle. It is a completely automated environment with the two tape libraries at different locations. We are moving around 5TB of incoming client backups a day. For attaching the I/O we use 6x FCP 4Gb and could use more in the near future. I agree with David lots of cpu is involved. In our case something like 1,5 z9 BC IFL for most of the day. The main problem there is the inefficiency of TCP/IP communication, not the TSM system per se or the FCP based I/O. I have spent several bouts with Rob vd Heij of Velocity trying to improve on the communication. Our last change was abandoning the LACP VSWITCH for native LACP bonding within the Linux guest due to the very large overhead of the VSWITCH. Feel free to ask if you want to know more details. Best regards, Pieter Harder [email protected] tel +31-73-6837133 / +31-6-47272537 Brabant Water N.V. Postbus 1068 5200 BC 's-Hertogenbosch http://www.brabantwater.nl Handelsregister: 16005077 ---------------------------------------------------------------------- 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
