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Ok looks like you have some problems with grub. Maybe the grub config is wrong. Try to debug in this direction. You could also try to install debian and setup proxmox on top of debian.

How many servers do you have? There will never be the perfect solution which will work for all scenarios. You need always a solution which fits to your needs. I work with NetApp as shared storage with NFS. Snapshots are created on the NetApp so i do the whole backup logic on the storage system...

Ok then you should do some tuning on the tcp stack to get more performance. net.ipv4.tcp_max_tw_buckets = 180000 net.ipv4.tcp_mem = 3622080 4829440 7244160 net.ipv4.tcp_wmem = 40960 163840 41943040 net.ipv4.tcp_rmem = 40960 873800 41943040 net.ipv4.udp_mem = 363168...

I would only use NFS4 if you need other access controls then per ip/subnet. Also if NFS4 use NFS 4.1 - pure NFS4 has a lot of problems. Also VMware use NFS3 and not NFS4 - they started in version 6 to initally support it Why you need NFS4? Can you pls post your sysctl.conf?

Sorry but what does your UPS help if you have fire or something else remember murphy's law so always have the data mirrored to an other datacenter how you will do firmware upgrade or something else on storage system where you need to reboot the controller? I don't think the solution is to stop...

If you need 10G switches then you should use the Arista 7150s they are very and ultra low latency switches. We use they as storage switches with netapp in datacenters. What is you price limit for this solution? About which products you talked with NetApp? Maybe we can find a solution which is...

I would use a NetApp and then you can decide to use NAS oder SAN. I would use NFS because of the snapshots and the need of space compared to iSCSI oder FC. What is the distance between the DCs? Maybe you can use a Metrocluster then you have SyncMirrored Aggregates. This means all data is written...

Do you have reverse dns records for you Proxmox hosts? Please use NFSv3 not v4. NFSv4 hast more features like auth with nis oder ldap and so on but here you need only ip based auth. Put this in sysctl.conf: <code> net.core.rmem_max = 16777216 net.core.wmem_max = 16777216 net.core.rmem_default...

What data rates do you get now? And what do you expect? Is the storage your bottlenack or the network? If you use normal SAS drives the performance should be good enough if not create a raid on ssds for high performance work loads. How many space you need where you have high performance...

net.ipv4.tcp_max_tw_buckets = 180000 net.ipv4.tcp_mem = 3622080 4829440 7244160 net.ipv4.tcp_wmem = 40960 163840 41943040 net.ipv4.tcp_rmem = 40960 873800 41943040 net.ipv4.udp_mem = 363168 484224 726336 vm.swappiness=0 vm.dirty_background_ratio = 3 vm.dirty_ratio...

Hey You should use sio_ntap which is the tool for simulate IO. Which Ontap release do you have? You use the right nfs tunings? 24 disks are too low to get a good performance you need more disks also the 3240 is not real fast. For databases create dedicated volumes and disable readahead on...

Which line of the config file is the parsing error? You know this? https://library.netapp.com/ecmdocs/ECMP1654943/html/index.html Try to change at blacklist_exceptions: wwid 3600a09803830327241244735782f4e50 --> remvoed "" why you like to do a blacklist wwid *?

Host utilities installed? cdot oder 7Mode?

Where do you get latency? Is this the disk backend or is is cpu? Can you post some screenshots?

Even with vmware you have problems with performance. The problem is the missing hardware gpu which can do a log of work. In special when people watch youtube or something like that you have a big performance problem. https://technet.microsoft.com/en-us/library/dd759187.aspx Is the Desktop...

As i know Proxmox also supports GlusterFS and Ceph or ZFS. They could be on top of the luns. Do you already have this SAN? If not i would think about to buy a NetApp and using NFS.

here is the link: http://www.netapp.com/us/system/pdf-reader.aspx?m=tr-4067.pdf If this does not help we could test the performance with sio_ntap. With this tool we can test nearly everything. Please post the mount options of the nfs mount. iSCSI will always be faster because it is block...

You need working reverse lookup for NFS. For every file you write ther is a dns reverse lookup. Did you read the NF Document from NFS? Did you enable NFS 4.1? Your idmap.conf should have the same domain name as configured in netapp Please post the output of: set diag vserver show -vserver...

simple add iface eth0 inet6 static and define ip netmask and gateway and also dns servers thats it

You should use vlans that your setup is working as expected. We are talking about /24 networks right? The best is to do a 802.3ad on eth0 and eth1. Then 3 vlans on the etherchannel and your setup should work fine. Here is an example for such a setup: pmx-00:~# cat /etc/network/interfaces #...