[linux-lvm] raid0 - no performance increase??
lejeczek
peljasz at yahoo.co.uk
Sat Oct 10 16:52:32 UTC 2020
Hi guys,
I have a simple raid0 lvm comprising of two NVME devices.
I'd expect performance of such a volume to be higher than a
"regular" volume ran of a single NVME, but simple dbench
shows such raid0 volume to the same "slow" as a single NVME
volume.
The system is a Centos 8 with 5.8.14-1.el8.elrepo.x86_64 and
default kernels.
raid0:
#Str #DStr Stripe Type Devices
2 2 64.00k raid0 0_rimage_0(0),0_rimage_1(0)
1 1 0 linear /dev/nvme0n1(0)
1 1 0 linear /dev/nvme1n1(0)
Care to share your thoughts? I'll be grateful.
many thanks, L
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