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08-30-2017 04:58 AM
08-30-2017 04:58 AM
Flex-10/10D: bay1-2 stacking links degraded
Greetings. I am a newbie to HP C7K. I have the following configuration:
1. Single HP C7K. With six BL460c blades. In bay 1-3 and bay 9-11.
2. VC Flex-10/10D in bay 1 & 2. VC1 has 2 ports in LAG to switch 1 and VC2 has 2 in LAG to switch 2.
I sometimes see that "Domain Status" indicates that "Stacking Links" degraded. Trying to narrow it down. I have three probable candidates:
1. When I power on bays in particular order? Or change server profile config without un-assigning (only powered off: that's allowed right?)
2. When the OS bonding config is not complete/correct.
3. VC detecting a loop in my configuration?
Am I even making sense? Where can I read more about how the internal stacking links work? The X11-X14 are essentially uplink ports, right? In one LAG to the next bay peer, in my case?
->show stackinglink Connection Status : Failed Redundancy Status : Degraded Stacking Mode : Full No stacking links to display
Earlier:
->show stackinglink Connection Status : OK Redundancy Status : OK Stacking Mode : Full =========================================== Link Speed Connected From Connected To =========================================== 1 10Gb enc0:1:X11 enc0:2:X11 2 10Gb enc0:1:X12 enc0:2:X12 3 10Gb enc0:1:X13 enc0:2:X13 4 10Gb enc0:1:X14 enc0:2:X14
I am not sure, but I think--amongst the things I have tried--VC reset fixes this.
Thanks in advance
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08-30-2017 05:45 AM
08-30-2017 05:45 AM
Re: Flex-10/10D: bay1-2 stacking links degraded
I marked one VLAN as "Native" in a SUS (all servers were powered off). And seem to have triggered this.
---------------------------------------------------------------------------- Record : 3205 Date/Time : 2017-08-30 20:10:00-05:00 Info : NET:VLAN-xx-VC2:7003:Info Message : Enet Network changed ---------------------------------------------------------------------------- Record : 3206 Date/Time : 2017-08-30 20:10:13-05:00 Info : VCD:xxx_vc_domain:1026:Critical Message : Domain state NO_COMM : Stacking Links are not fully connected, Previous: Domain state DEGRADED, Cause: Stacking Connectivity Error: enc0:iobay2 does not have a stacking path to enc0:iobay1 ----------------------------------------------------------------------------
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11-14-2017 08:15 AM
11-14-2017 08:15 AM
Re: Flex-10/10D: bay1-2 stacking links degraded
Seems I was hitting this (nasty) bug on VC firmware 4.60:
https://support.hpe.com/hpsc/doc/public/display?docId=emr_na-a00029108en_us
I downgraded to 4.50 after taking a backup. But now I cannot restore from a backup made with a newer firmware. And thus I seem to have ended up with a very old configuration (How? Is a copy stored on board?).
Is there a way I can use the view the configbackup and re-create the config via CLI?
Thanks in advance