Case van Rij wrote: > I have this configured on 45 R410s with iDRAC Express and have tried > it in the past on 50 R210s and a handful of 1950s and I have to say, > even once configured it's actually rather frustrating to use and it's > no substitute for a cyclades-like serial console server. > > I initially tried to use this with the ethernet port on my regular > switch (even though the ethernet port was dedicated to PXE and IPMI, > all normal traffic is using an add-on 10G card) and the management > port would simply stop responding to network traffic on a daily basis. > I've since moved the ethernet to an isolated switch and it's > marginally better, but the serial-over-LAN is still so unresponsive > that remote management automation frequently times out while trying to > manage the server). >
I've found performance on R210s to be good. 1950s and PE860s less so. I've found reliability pretty good using recent ipmitool builds. Here's how I have an R210 set up (I think these were just the defaults). # ipmitool sol info 1 .... Character Accumulate Level (ms) : 50 Character Send Threshold : 255 Retry Count : 7 Retry Interval (ms) : 480 Volatile Bit Rate (kbps) : 115.2 Non-Volatile Bit Rate (kbps) : 115.2 Payload Channel : 1 (0x01) Payload Port : 623 You may want to try: 1. Using a recent ipmitool, if you're not already. 2. Fiddling with the first 4 values. I'm guessing that things like the "retry interval" could come down on a LAN - half a second to retry a dropped packet seems like a long time at first consideration.... It would perhaps have been nice if IPMI did stuff over TCP rather than UDP, but when it was defined it didn't to SoL, so I suppose UDP was good enough, and nice and light-weight for doing other (non-interactive) IPMI comms. HTH, Cheers, Tim. -- South East Open Source Solutions Limited Registered in England and Wales with company number 06134732. Registered Office: 2 Powell Gardens, Redhill, Surrey, RH1 1TQ VAT number: 900 6633 53 http://seoss.co.uk/ +44-(0)1273-808309 _______________________________________________ Linux-PowerEdge mailing list [email protected] https://lists.us.dell.com/mailman/listinfo/linux-poweredge Please read the FAQ at http://lists.us.dell.com/faq
