Recent content by ghusson

Yes SLOG (see https://www.truenas.com/blog/o-slog-not-slog-best-configure-zfs-intent-log/) . If you do so, use 2 SSD in mirroring for mitigating hardware failure. Warning, all SSD cannot manage SLOG load. Maybe it is not a good idea in your case. Ok. I am not a ZFS expert, I cannot tell. For...

Ok. Maybe it could cut down replication. But pagefile shouldn't be used too much if you system is well dimensioned at RAM level I think.

Hello. For shared LVM over iSCSI, you can inspire from : https://infohub.delltechnologies.com/en-us/t/dell-powerstore-deploying-proxmox-virtual-environment-white-paper/ For speeding up NFS, be sure to tune network stack (TCP window size if NFS over TCP for example). Some tuning links for...

As @Impact said, use "Skip replication". But you should create the disk on the other nodes. Maybe the simpler is to replicate one time and disable replication after. And test, test, test :-)

"Zfs snapshot from the iscsi" ? What do you mean ?

Hello. HDDs are big. Thus you should use error detection and correction (at RAID or FS level). HDDs are low IOps. Thus you should use data cache if you want to speed up things : either with RAID card cache (+ BBU) or with ZFS + zlog. But NOT RAID + ZFS ! As disks tends to fail at same time...

Hello. A small warning : you cannot use snapshot over LVM over shared iSCSI. See https://pve.proxmox.com/pve-docs/pve-admin-guide.html#_storage_types

OK. Glad to have helped. Strange problem anyway.

Ok. It maybe correlated through a network problem indeed. Do you monitor interface states and bandwidth ?

I already had this problem 10 years ago. I didn't looked forward. Today, as a workaround, you can look at this : https://pve.proxmox.com/wiki/Automated_Installation

Hello, I have had this type of problem. That was openssh-server that stopped serving SSH client connections as security measure. You can look at the logs if ssh server is complaining maybe ?

My ideas : Reliability : use several firewalls/routers, with VRRP protocol for example in order to have Active/Passive firewalls. Security : use dedicated cluster servers with low level hardware in order to avoid lateral attackers moves. You are welcome.

Nodes shouldn't do any function other than virtualization ( and maybe CEPH storage ). Thus one or several VMs should do routing / firewalling. Be careful with your overlapping networks as it can be dangerous (security) and prone to mistakes in network flow understanding.

@abhabitat : you didn't search in the forum, right ? https://forum.proxmox.com/threads/aer-correctable-error-message-received.156497/ ;)

Did you install a 5th node for quorum in case of split ? Is 172.16.8.0/24 your management network ?