Good Ener­max sup­port in Ger­many

The pow­er sup­ply of my serv­er at home failed at the end of last month. As I was busy with ren­o­va­tion at home, it took me a while to check if it is real­ly the PSU or some­thing else. When I was sure about the failed piece, I have sent the PSU to the RMA address the Ener­max sup­port gave me (the PSU has a 5 year war­ran­ty, and I have it since one year). Due to hol­i­days it took a while to get the repaired unit back, but I want to say thank you to the Ener­max sup­port:

  • Thank you for hand writ­ten respons­es, I did not get obvi­ous auto­mat­ic respons­es or canned respons­es (well, maybe they did some copy&paste for the RMA address and such, but each mail had at least a part which was not com­ing from copy&paste).
  • Thank you for get­ting back to me with­in a rea­son­able time.
  • Thank you for polite­ly answer­ing all my sup­port requests.
  • Thank you for being hon­est in your com­mu­ni­ca­tion (slow han­dling of the repair due to peo­ple being in hol­i­day, not because of miss­ing pieces from sup­pli­ers or oth­er excus­es out­side Ener­max).

This is how the sup­port shall be, unfor­tu­nate­ly this is not always the case, but at least here it was. Thank you!

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Sta­bil­i­ty prob­lems solved (hard­ware prob­lem)

After putting the disks of the 7-sta­ble sys­tem which exhib­it­ed sta­bil­i­ty prob­lems into a com­plete­ly dif­fer­ent sys­tem (it is a rent­ed root-server, not our own hard­ware), the sys­tem now sur­vived more than a day (and still no trace of prob­lems) with the UFS set­up. Pre­vi­ous­ly it would crash after some min­utes.

The ZFS set­up with the changed hard­ware had a prob­lem dur­ing the night before (like always after all my ZFS relat­ed changes on this machine), but on this machine I changed all locks in ZFS from shared locks to exclu­sive locks (this extend­ed the uptime from 4 – 6 hours to “until I reboot­ed the morn­ing after because of hang­ing process­es”), so this may be because of this. I do not know yet if we will test the ZFS set­up with the pure 7‑stable source we use now or not (the goal was to get back a sta­ble sys­tem, instead of play­ing around with unre­lat­ed stuff).

It looks like some kind of hard­ware prob­lem was uncov­ered by updat­ing from 7.1 to 7.2 (and 7‑stable sub­se­quent­ly). This new machine has a com­plete­ly dif­fer­ent chipset, a new CPU and RAM and PSU and … so I do not real­ly know what caused this (but the fact that the pre­vi­ous sys­tem did not rec­og­nize the CPU after replac­ing it with a big­ger one and the obser­va­tion that only shared locks with a spe­cif­ic usage pat­tern where affect­ed lets me point towards miss­ing microc­ode updates…).

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