Kelsey Cummings
Cadet
- Joined
- Nov 10, 2015
- Messages
- 3
I have a Intel 10GbE lagg running LACP to a pair of junipers running MCLAG with VLANS and an MTU of 9000. Every is seemingly working correctly - read performance that seems reasonable enough for the disk config (5x 1TB mirrors at +350MB/s+) over NFS from a linux client running on top of ESX. NFS write speed is slower and obviously held back by the cheap SLOG device that is currently in use. But, under sustained saturated writes, the underlying interfaces start showing input drops which, in addition to causing packet loss is also triggering LACP to failover to the standby interface. "netstat -m" shows denied requests for 9k jumbo clusters increasing.
Any pointers for fixing this?
[root@yard] ~# netstat -I ix1 5
input (ix1) output
packets errs idrops bytes packets errs bytes colls
12764 0 0 18994594 12766 0 1224124 0
290022 0 3343 440256076 292205 0 22358078 0
254550 0 27 382015870 257558 0 11222406 0
113403 0 0 170311760 114983 0 16606922 0
42613 0 0 63744840 42625 0 3787048 0
339145 0 2671 514292488 341234 0 26096711 0
2 0 27 10252 5 0 640 0
292022 0 5 439514838 296153 0 21959828 0
69310 0 0 103193882 69318 0 5533882 0
340498 0 1520 512331556 342288 0 26349982 0
7 0 25 17678 10 0 1666 0
296737 0 7 446358184 300921 0 22367250 0
69474 0 0 103995858 69488 0 5586580 0
The platform is a Supermicro X8DTL w/ 2x E5620 and 24G with autotuning enabled.
Any pointers for fixing this?
[root@yard] ~# netstat -I ix1 5
input (ix1) output
packets errs idrops bytes packets errs bytes colls
12764 0 0 18994594 12766 0 1224124 0
290022 0 3343 440256076 292205 0 22358078 0
254550 0 27 382015870 257558 0 11222406 0
113403 0 0 170311760 114983 0 16606922 0
42613 0 0 63744840 42625 0 3787048 0
339145 0 2671 514292488 341234 0 26096711 0
2 0 27 10252 5 0 640 0
292022 0 5 439514838 296153 0 21959828 0
69310 0 0 103193882 69318 0 5533882 0
340498 0 1520 512331556 342288 0 26349982 0
7 0 25 17678 10 0 1666 0
296737 0 7 446358184 300921 0 22367250 0
69474 0 0 103995858 69488 0 5586580 0
The platform is a Supermicro X8DTL w/ 2x E5620 and 24G with autotuning enabled.
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