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We are definitely not go with Hardware RAID for ZFS. Actually the other server does not have any RAID controller. It only has a HBA card. So we have to go with ZFS as we cannot go for RAID. My question is, should 16GB free RAM for ZFS is fine to work with 8TB zfs storage? How much CPU core...

For now, we are not concerned about RAM and we are ready to give RAM to ZFS. What we are thinking that we shall allocate 8G+(1GB*8) = 16GB [since, we are going to have 2TB x4 SSD in RAID-5] to ZFS ARC. Our concern is, will this setting give us the amount of IOPS to the MSSQL servers, that we...

Ok. if we build ZFS RAID-5 with default configuration that proxmox provides and migrate one of the heavily loaded servers to one of the other hosts, will it solve the problem? Of course, we shall disable KSM and set swappiness to 0. Does heavily loaded SQL server run on default ZFS RAID-5...

I have set the swappiness to 0. However, should we still need to disable KSM? The host CPU utilization never exceeded 70% during those VM problems.

Yes we are thinking of the subscription. But we really want to focus on the problem first that we are facing now.

For now we are not concerned about CEPH. Host CPU is No io-thread enabled. No cache is being used on all the Virtio SCSI drives. I cannot provide you the exact graph right now, since it is a sunday and there is no such load on the servers and they are doing fine now. However, when the...

All the VMs are running latest virtion which is 208. All of them are running Windows server 2016 standard All of them are running SQL server 2017 Patches are same on all the VMs VM1 and VM2 are having problem and clients are interacting with them. VM3 is only for testing purpose only. VM-1...

We are running 2 sql server 2017 over windows server 2016. All of a sudden the disk active time becomes 100% and query executions become slow. After sometimes it becomes normal and functioning correctly. We are also having a 3rd vm running with windows server 2016 on the same storage. When the...

Hi, We are running 2 SQL 2017 server VMs over Windows 2016. Everything is running fine for one day. However, the CPU utilization is reaching very high after a day on both the servers and the performance is degrading. The catchy part is High CPU utilization is seen on both the servers at the...

Hi, I have created a xfs directory using GUI on a 4 disk RAID-5. I can see the RAID-5 is mounted on the directory using uuid. However, i cannot find the uuid in the /dev/disk/by-uuid/ folder. in fact, I cannot find the uuid in the entire proxmox system. I have two other directories, I can find...

Thank you for the quick response. The drives are showing up as /dev/sdx. I used smartctl /dev/sdX to check on all the connected drives. They diplayed all the drive details including drive serial and SMART status which was enabled. Also like you suggested, we are considering for an alternate...

I have tested CRA3338 with few drives and it is possible to not configure the drives with a software RAID as in the drives stay in Non Raid mode. But let me know if i can test whether the drives are actually in JBOD using proxmox cli (I only have access to the CLI).

Here is the detailed configuration that we are going for. We are taking 4 of these for the cluster Model Description Qty R281-3C1 (rev. 200) 2nd Gen. Intel® Xeon® Scalable and Intel® Xeon® Scalable Processors 6-Channel RDIMM/LRDIMM DDR4, 24 x DIMMs Supports Intel® Optane™ DC Persistent...

We are going to purchase 4 x Gigabyte R281-3C1 servers with CRA3338 array controller to create a Proxmox CEPH cluster. Has there been any issue while using this server or this array controller? Users who have used this server to host Proxmox VE, please let us know your experience with this...

Thanks for your reply. Currently, we are having a 3-node cluster with Proxmox VE 6.3.3 and Ceph Octopus installed. We want to remove a node from the cluster and add 3 more to them. Eventually, it would become a 5-node cluster. My questions are: 1) Should we upgrade the cluster from 6.3.3 to...

Hi, We are running a 3-node cluster of Proxmox VE 6.3.3 with Ceph 15.2.8. We want to upgrade them to the newly released 7.x. Additionally, we want to remove a server from this cluster and add 3 more to them. In total, we would have 5 nodes. Currently, we are using Proxmox backup server 1.1.5...

Hi, We are running Proxmox MG 5.1.2. and the current mail gateway version is 6.2. We want to purchase a subscription for Proxmox MG. However, we still want to run the version 5.1.2 for the time being. We shall upgrade it later. Do you think it is possible to purchase a subscription for 5.1.2...

Hi, We wish to run SAP HANA and couple of other VMs on Proxmox environment in PRODUCTION. SAP HANA will require 512 GB to 1TB RAM to operate. Initially we wish to go with 3-node architecture with Ceph configured as a storage backend. My questions are as follow: 1) Will Proxmox support a VM...

Can you specify your RAM configuration in this format [No. of sticks x Capacity of each stick].

Hi, Could you please suggest, which among the below 3 CPUs will best fit for CEPH with 4 node: 1) SKL-SP 4116 12C/24T 2.1G 16.5M 9.6GT UPI 2) 5120 2.1Ghz 14-Core Xeon Gold Processor Dual Socket P (LGA 3647) 3) Intel® Xeon® Gold 5220 Processor Thanks,