Hello,
i added an Hyper-V Replication Server (HP DL380 G8 2x E5-2680 + 512GB RAM - 10GBit SFP+ - 7x5TB SATA drives (RAID5) - yes, it's not the newest Server, but good)
in same moment i added 10GBit Cards to all other Hyper-V-Hosts - connected to HP Arruba Switch.
everything working first (so that's what i thought) - started first replication syncs - LAN going up 5GBit on Replication Host.
after some minutes LAN drops down to some MBit or 0 - sync still running, but now RAM is growing and growing (up to 270GB)
in the same moment when i do a Hard disk benchmark the speed is very unclear sometimes just 20MB/s for 32KB-128KB Size i/o - and for 256KB and above still 4-5GB/s
nothing special in eventlog.
it depends to all 3 Hyper-V Host, so i think the problem will be on the Replication Host or Network - but i don't loose connection to it, so i don't think it's the network.
so my thought will be something with RAID - but don't know where to start - already recreated RAID with 64kb Stripe Size - to Test, and restart procedure - but same here. first Sync no problem, second also OK, after 15 Min the first will sync difference, and RAM growing, LAN speed from 2,4GBit to 10Mbit - and this is it - never getting better again.
don't know where to start - would be fine if someone can help :)
all Hosts are DL360 G9 - 256GB RAM - SSDs RAID5 and 2x 2690v4 with Server 2019 Std. - working great (for my luck)