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As per my knowledge this is pretty lame speed to a NVMe disk.
Here's NVMe storage benchmark from another active thread, 4k speeds are quite low, but the rest should be similar for general NVMes:
What OS (distro) are you running?
That's networked storage
Definitely not okay , but it depend on the brand you have is it Samsung or something else ?
If you don't have anything important running on the server, reinstall it and install Linux on one disk only and leave the other NVMe empty. Software RAID can slow down SSD disks and NVMe disks.
Then you can see if it's (one of) the NVMe drives or a performance loss due to software RAID.
It was running on Centos 7 with DirectAdmin in it.
I don't know the exact thing since I rented it from OVH.
But i think it was Intel.
Too bad currently, I'm running a production site in this Dedi.
In OVH,
does anyone have experience with requesting NVMe Replacement?
Just use the API on OVH or open a ticket, they'll replace it probably.
Ill try
But, does the data will be gone?
Probably. Make sure to have backups and if it is a RAID Array you could probably rebuild it.
I am not sure if they require additional info for troubleshooting. They always give me new disks for some reason.
as OVH is unmanaged service, do you think they will migrate the data for you?
I don't know,
I expect they will clone my drive maybe
No sir.
Also check your raid health just to be safe
Try a more recent OS, like Ubuntu 20.04. Perhaps you can try a live CD and run the test again. You know CentOS 7 is quite old and I've seen some performance related issues with it on newer hardware.
Also like said above me, type 'cat /proc/mdstat' to see if no rebuilt/repair is in progress.
you can try this command to see exactly what model the drives are
lshw -class disk
orfdisk -l
maybe you can see here more information about the disks.with unmanaged service, you don't get such privileges. Unfortunately, you will require to do it yourself.
Also if this doesn't affect the performance of your websites , no need to do anything just leave it as is or you will end up break your OS , unless if you are benchmarks geek
Assuming you haven’t just cropped off the bit of smartctl that identifies the disks, try nvme-cli or lsscsi to identify them
Check the NVMe Model, then something could be decided.
I think its affecting the production website its load slower than before.
No changes made on the code itself.
And
This is the NVMe Model.
@DianTama I have the exact server. You certainly have some issue with your NVMe drives (Nothing crazy though). Here's my YABS (NVMe drives in RAID1):
Insignificant
@DianTama
That's a weird disk anyway. On the one hand it's MLC, which is much better and faster than TLC or QLC, but on the other hand its write IOPs are quite low (< 20k). And the performance profile is really perverse; 4k ("sector") performance way better than 64k and even better than 1M?
All in all that thing is worse than a halfway decent SSD drive.
Something is seriously wrong. Either with the hardware/disk or with your OS or with your benchmarking.
That SSD is not that fast rated speeds are
1200 MBps (read) / 600 MBps (write) maybe the raid slow down the speeds
yes! maybe this shows that there is simply a lot going on on that node already? bandwidth seems limited or eaten by something else and therefore the limiting factor.
obviously one can't expect to see raw performance numbers that express an idle disk in system running in full production...
this. @DianTama overhink if you taken the current load on the system into account while you ran the benchmark and if this can even properly reflect what you expected to see (raw nvme performance)
Thanks for the explanation, ill try to check on all of those and hope that I found the issues. And maybe try to get disk replacement with the provider when I'm ready, since replacing a disk took a lot of effort.
This could be true, right now I'm analyzing all possible causes.
Hello there,
Their speed seems a bit slow compared to NVMe Disk. With the Intel P4618, I get about 1500 mb / s speed.
Isn't this a dedicated server not a virtual one ?
So what does has to do with the node ?
It's a production machine.
maybe wrong choice of word, sorry. I meant 'a lot going on on that whole server already'...
@DianTama mentioned that it runs a website in production, that is busy and he even think he noticed that it is getting slower. so there probably is quite some load already and therefore a benchmark in parallel of course can only measure what's left to use and not what could be, if the whole thing was fresh/idle otherwise.
without knowing what exactly the server is doing that's just speculation though - however the numbers in the benchmark show enough breathing room left.
TL;DR; if you want to be worried about those numbers, then probably only if you get the same result on an idle box/NVMe.
They are in 512 byte sector mode so check your partitions are aligned correctly
Edit: just seen it’s an old pci card style nvme, probably working as expected then. You might be able to squeeze more out of it in 4k sector mode, but needs a reinstall