121–130 of 168 posts
Of course, people have tried to solve this, but I think not well enough. It's a huge amount of technical debt right there in the systems we use every day.
What I hate about Unix filesystems: the fact that you can't take a drive, put it in another computer and have permissions (user/group-ids) working instantly. Same for sharing over nfs. Of course, people have tried to solve this, but I think not well enough. It's a huge amount of technical debt right there in the systems we use every day.
What I hate about Unix filesystems: the fact that you can't take a drive, put it in another computer and have permissions (user/group-ids) working instantly. Same for sharing over nfs. Of course, people have tried to solve this, but I think not well enough. It's a huge amount of technical debt right there in the systems we use every day.
Because permissions is an OS-enforced feature, not the filesystem feature. If you have access to the drive, permissions are meaningless.
By the way, assume you have root permission. How would you replace a single file in a random tar-file, without changing any of the permissions/userids/groupids inside the tar-file? You can't untar it because the users inside the tar file don't correspond with the ones on your system. So, you'll have to use special tools, which is (only) one demonstration of the inadequacy of the permissions mechanism of our filesystems.
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please ask my several NVMe devices to take notice ! actual performance under Linux OS is far less than that, here
I just tested my laptop with the Ubuntu benchmark tool on the partition editor. 3.5GB/s read on 100MB chunks.
Known as "GNOME Disks".
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> I expect the price of NVMe drives to drop over the next few years until they're cheap enough that the majority of computers are running NVMe drives. Price no longer has anything to do with it. PC OEMs are simply not shipping SATA SSDs any more, and major drive vendors have started to discontinue their client (OEM) SATA SSD product lines. We're just waiting for the SATA-based PC install base to be retired.
I have 8 SATA SSDs in my workstation; are there motherboards that could run a similar NVMe setup?
So far the best aggregate results with io_uring 10.5 M 4K IOPS and 66.5 GB/s with large reads...
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Yeah how many people are running apps on servers served at all or even partially by NVMe SSDs? Where I work for our on prem stuff it's basically all network storage.
This is starting to change a bit because of things like the DPUs that companies are making. Basically it's an intelligent PCI-e network bridge that lets you emulate/share PCI-e devices on the host while the actual hardware (NVMe storage, GPU, etc.) is located elsewhere. This lets you reconfigure the host in software without having to physically change the hardware in the servers itself. It also lets you change the wa…
This doesn't look like a generic PCIe over network/fabric bridge. Did I misunderstand you or did I fail to locate that information in the linked article?
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I think a lot of it depends what the machines are used for. I'm not actually the IT department, but I believe in my org, we started out with a SAN-backed high availability cluster, because the immediate initial need was getting basic infrastructure (wiki, source control, etc) off of a dedicated machine that was a single point of failure. But then down the road a different set of hosts were brought online that had fas…
I’m laughing a little bit because an old place I used to work had a similar setup. The SAN/NAS/whatever it was was pretty slow, provisioning VMs was slow, and as much as we argued that we didn’t need redundancy for a lot of our VMs (they were semi-disposable), the IT department refused to give us a fast non-redundant machine. And then one day the SAN blew up. Some kind of highly unlikely situation where more disks fa…
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This is starting to change a bit because of things like the DPUs that companies are making. Basically it's an intelligent PCI-e network bridge that lets you emulate/share PCI-e devices on the host while the actual hardware (NVMe storage, GPU, etc.) is located elsewhere. This lets you reconfigure the host in software without having to physically change the hardware in the servers itself. It also lets you change the wa…
The linked article states that DPUs behave like a PCIe device implementing the NVME protocol but instead of directly connected storage it can forward requests over network (fabric) via NVMeoF. This doesn't look like a generic PCIe over network/fabric bridge. Did I misunderstand you or did I fail to locate that information in the linked article?
When I need indexing, I use SQLite, but I limit myself to very basic subset of SQL that would work in any of Oracle, Maria, Microsoft stores without changes.
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is this with threadripper boards?
3 M.2 slots is common even on AMD's mainstream X570 and B550 platforms. I don't know if any of those motherboards also bundle riser cards for further M.2 PCIe SSDs, but they do support PCIe bifurcation so you can run your GPU at PCIe 4.0 x8 and use the second x16/x8 slot to run two more SSDs in a passive riser purchased separately.
I chose this board for its absurdly overkill CPU voltage regulation. The pci-e configuration seems like a pretty good compromise, though.