alexskysilk's latest activity
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Aalexskysilk replied to the thread HA configuration for node migration/restart only.You realize that HA request state of started means, you know, that it should be started. If you dont want that, set a different request state.
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Aalexskysilk replied to the thread Storage for small clusters, any good solutions?.This implies that the operator has both the skill, experience, and the wherewithal (not having a dozen other responsibilities) to understand the docs and apply them. Ceph is not attractive at the low end precisely because it requires engineer...
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Aalexskysilk replied to the thread Best RAID for ZFS in Small Cluster?.If by redundancy you mean disk fault tolerance, the higher the value after "raidz" the higher the fault tolerance. In practice, raidz2+ (never use single parity raidz unless prepared to lose the pool at any time) performance= striped mirrors...
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Aalexskysilk replied to the thread Pardon my less-than-intelligent question, but is there a way to install Proxmox on a Ceph cluster?.Good plan. I hope you understand that this experiment will not ever be worth any money you put into it. You already have a working solution- and if the "politics" of the money prevent you from putting together a sane configuration you're just...
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Aalexskysilk replied to the thread Snapshot causes VM to become unresponsive..I'm sure there would be readers grateful for any such information. any reason you're not just posting it?
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Aalexskysilk replied to the thread Request: SAS HBA LUN Sharing Between Proxmox Cluster Hosts (Like VMware).@RodolfoRibeiro If you want more direct assistance, post the content of (from both hosts) lsblk multipath -ll -v2 if you have system logs available from the point in time when your vm became corrupted, would be good to look at what happened.
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Aalexskysilk reacted to bbgeek17's post in the thread Request: SAS HBA LUN Sharing Between Proxmox Cluster Hosts (Like VMware) with
Like.
Hi @RodolfoRibeiro , thank you for clarifying. This matches my initial understanding of your situation. SAS and iSCSI are transfer and connectivity protocols. While the article I suggested is using iSCSI as example, once you are beyond basic... -
Aalexskysilk replied to the thread Request: SAS HBA LUN Sharing Between Proxmox Cluster Hosts (Like VMware).For the generations of hardware where iscsi and SAS were offered as available SKUs there was no meaningful performance difference- 16G FC simply had more headroom to fill cache. When 25GB iscsi product started shipping, THOSE were faster (even...
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Aalexskysilk reacted to Johannes S's post in the thread Pardon my less-than-intelligent question, but is there a way to install Proxmox on a Ceph cluster? with Like.
Although they were about replicated pools (so no ec) following reads might serve as a hint why (outside of experiments/lab setups) it's not a good idea to go against the recommendations...
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Aalexskysilk replied to the thread Pardon my less-than-intelligent question, but is there a way to install Proxmox on a Ceph cluster?.K=6,M=2 results in 6 data strips per 8 total. 6/8=0.75 in replication you have 1 data strips per 3 total. 1/3=0.33 its not exactly the "same" availability because survivability in a replication group is much higher; you need one living osd per...
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Aalexskysilk replied to the thread Pardon my less-than-intelligent question, but is there a way to install Proxmox on a Ceph cluster?."lower" and "higher" are subjective. Ceph achieves HA using raw capacity. suit yourself. this is not a recommended deployment. You are far better served by just having two SEPERATE VMs each serving all those functions without any ceph at all-...
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Aalexskysilk replied to the thread Pardon my less-than-intelligent question, but is there a way to install Proxmox on a Ceph cluster?.The number of OSDs isn't relevant to a pool as long as it is larger then the minimum required by the crush rule. For example, If you have an EC profile of K=8,N=2 rule, you need a minimum of 10 OSDs DISTRIBUTED ACROSS 10 NODES. so 1 OSD per node...
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Aalexskysilk replied to the thread Pardon my less-than-intelligent question, but is there a way to install Proxmox on a Ceph cluster?.from understanding failure domains. damn @UdoB beat me to the punch. I wont "professor" you on this. You can either read and understand, or deploy your preconcieved notions and learn on your flesh and blood. I would also note that if your...
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Aalexskysilk replied to the thread yawgpp (Yet Another Windows Guest Performance Post).ahhhh that makes so much sense... I so rarely set up windows guests so I didnt even think of that.
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Aalexskysilk replied to the thread Pardon my less-than-intelligent question, but is there a way to install Proxmox on a Ceph cluster?.Ok. lets touch on this. From my perspective, there are two types of storage (there are more but in scope.) There is payload (think OS and application) storage and bulk storage. Bulk storage can most efficiently be served by a single device such...
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Aalexskysilk replied to the thread yawgpp (Yet Another Windows Guest Performance Post).Caching occurs in multiple layers of presentation. By the time a virtual disk is presented to a guest, the multiple caching layers can conflict and actually SLOW the guest storage performance. see...
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Aalexskysilk replied to the thread Pardon my less-than-intelligent question, but is there a way to install Proxmox on a Ceph cluster?.you dont need pci passthrough for lxc- just would need to install the proper nvidia driver based on hardware and kernel deployed. You are better off creating an installation script, especially if you intend on having multiple nodes with GPUs...
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Aalexskysilk replied to the thread Pardon my less-than-intelligent question, but is there a way to install Proxmox on a Ceph cluster?.I think you need to carefully consider what your end goal is. PCIe passthrough is not a good citizen in a PVE cluster, since VMs with PCIe pins not only cannot move anywhere, but also liable to hang the host. if you MUST use PCIe passthrough...
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Aalexskysilk posted the thread yawgpp (Yet Another Windows Guest Performance Post) in Proxmox VE: Installation and configuration.in the many years I've been using PVE, I havent had much call for using Windows guests, and when I did it was usually Windows 2016 (and older before) and had reasonably good results. In the last few weeks, I had need of a Windows guest for a...
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Aalexskysilk replied to the thread Pardon my less-than-intelligent question, but is there a way to install Proxmox on a Ceph cluster?.In a cluster you dont need or even want to backup a host. everything important lives in /etc/pve which exists on all nodes. If you DID back up a host(s), you'd open the possibility of restoring a node that has been removed from the cluster and...