ghusson's latest activity
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ghusson replied to the thread Best practices for 2-server+DAS-setup with Proxmox?.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... -
ghusson replied to the thread replication setup advice.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.
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ghusson replied to the thread Proxmox and iSCSI.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...
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Looks like the conversation has moved into a bit of a different direction, which is completely fine. I wanted to address a few points for posterity. It is advisable to start with a multipath device if you anticipate moving to that type of...
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The speed benefit may be an illusion, try the nconnect setting on your NFS. That parallelizes your NFS connection (where you classically have the bottleneck of 1 read and 1 write stream). Especially on containers you shouldn’t see much of a...
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ghusson replied to the thread replication setup advice.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 :-)
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ghusson replied to the thread Proxmox and iSCSI."Zfs snapshot from the iscsi" ? What do you mean ?
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ghusson replied to the thread Best practices for 2-server+DAS-setup with Proxmox?.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...
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ghusson replied to the thread Proxmox and iSCSI.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
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ghusson replied to the thread Random Replication Job: '110-0' failed then it doesn't then it does then it doesn't....OK. Glad to have helped. Strange problem anyway.
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ghusson replied to the thread Random Replication Job: '110-0' failed then it doesn't then it does then it doesn't....Ok. It maybe correlated through a network problem indeed. Do you monitor interface states and bandwidth ?
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ghusson replied to the thread DHCP interrupting remote install on Idrac.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
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ghusson replied to the thread Random Replication Job: '110-0' failed then it doesn't then it does then it doesn't....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 ?
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ghusson replied to the thread Proxmox network configuration issue and best practise.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...
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ghusson replied to the thread Proxmox network configuration issue and best practise.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...
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ghusson replied to the thread NVME correctable errors?.@abhabitat : you didn't search in the forum, right ? https://forum.proxmox.com/threads/aer-correctable-error-message-received.156497/ ;)
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ghusson replied to the thread networks used to determine fencing.Did you install a 5th node for quorum in case of split ? Is 172.16.8.0/24 your management network ?
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ghusson replied to the thread Lost of quorom between each nodes - how to startup in standalone mode.Ok thank you for the info.
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ghusson replied to the thread Lost of quorom between each nodes - how to startup in standalone mode.WARNING : YOU CAN LOOSE DATA, thus backup what you have to before doing this (example : VMs and /etc on each nodes) In order to FORCE local node operations : pvecm expect 1 Then you will have to pay attention to what you are doing in /etc/pve as...
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ghusson replied to the thread networks used to determine fencing.Yes, and I think that your corosync cluster speak on the management traffic. That's why I said it was expected. In order to avoid this, you should add a second ring for corosync on the other switch network.
