Search results

Server configuration: 20 Cores/40 Threads x 2 Sockets = 80 cores. Memory: 640GB with 150GB used across all VMs. The server has a dedicated Proxmox OS SSD and multiple 4TB Crucial MX500 SSDs. It has been running the Windows OS VM. OS: Windows Server 2016 Standard. DB: MS-SQL Express Advanced 2008...

Awaiting a Comparable Feature in PBS. Presently employing PBS for 7 copy Version Backup as Disaster Recovery storage, specifically to ensure Data Safety from Ransomware attacks. While also utilizing the ceph snapshot rbd export-diff and import-diff , with protect and clone mechanism with three...

If you get error : ceph dashboard ac-user-create input file not specified: please specify the file containing password/secret with "-i" option use : echo "mypasswordhere" > /root/cephdashpass.txt ceph dashboard ac-user-create cephdash -i /root/cephdashpass.txt administrator

Can not install -- apt install ceph-mgr-dashboard get error. The following packages have unmet dependencies: ceph-mgr-dashboard : Depends: ceph-mgr (= 16.2.11-pve1) but 17.2.5-pve1 is to be installed pveversion pve-manager/7.4-3/9002ab8a (running kernel: 5.15.102-1-pve) ceph -v ceph version...

Suggestion to Have option to assign a Slot-No from GUI and store it PVE it-self should be helpful.

With 2/3 option no issue. Proxmox and Ceph works great. Having in production for now 6+ years. Was trying to checkout 2/2 option on 3 server clusters

Ya I too had same thought about : as soon as you lose one OSD, I/O is completely blocked for some objects...But to my surprise it did not, atleast in my test senerios...where heavy data Read/write/update via custom script was done. thus thought to get community feedback on same.

you use Nginx Virtual Hosting on VPS1 , should help you...checkout Nginx Document for same.

I think you need to checkout Storage-type like Ceph, ZFS you use...mostly ...and if PBS isused. as they are key part. before using new PVE version.

Want to checkout what happen if Ceph pool size 2/2 instead of 2/3 on 3-server Proxmox-Ceph-Cluster , and if one Server goes down, would it be still able work in production like 2/3 setup...or will it halt all. Reason is that we would be having PBS Setup to take daily backup. for Data Safety...

@Lephisto your code is great, useful and its more professional code, I had done similar code ,but in very raw form, with option to start DR-setup with protection snapshot for checking the data/VM on DR site, you can check https://github.com/deependhulla/ceph-dr-sync-tool-for-proxmox , might be...

Do check size of /var/log/journal , you might want to reduce that too using : journalctl --vacuum-size=100M

Restoring Complete Ceph Cluster ..is a very length process. and not a safe way. it starts with with /etc/ceph & /var/lib/ceph folder backup...but you need to plan on test-cluster, not suggested for production at all

zabbix monitoring proxmox would be great . https://www.zabbix.com/integrations/proxmox

Do check your SMPS power/Watts, you might be needing more power to handle extra load.

Self-Healing would take time , you have 6 OSD are down, which is big amount of data. plus its two host down. , so its like if you had 3/2 replication , it would have to rebuild with 1 copy left... hopefully ceph would become health. keep a close watch.

Haven't tried myself; but Suse Ceph tuning Document might help you. : https://documentation.suse.com/ses/6/html/ses-all/tuning-ceph.html#id-1.5.3.4.10.2

Its totally Depends on Windows VM/Windows Server + DB Requirement , as in 128GB ..let assume you keep 32 GB always free for OS+ ZFS use., + 30% overhead for VM allocation, so its like running two Windows VM with 32GB Each...and if its MSSQL-DB ..you might need 64GB so might use up all RAM...

"sysctl -w vm.swappiness=10" or "sysctl -w vm.swappiness=0" does not corrupts anything..unless you are doing too much swap or page-file...as this would put load on RAM (fill it up) ..and if RAM is not free enough..it might crash. Safer way Part would be get all VM Down...run the command ..check...

Its more about planning , how much resource you want in total ...as thumb rule would suggest atleast have 30% free resource , be it HDD/SSD IOPS, CPU,RAM and Network for LAN & Backup. , these days IOPS is lot key for Application.