Software RAID5 on NVME drives will work fine?

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EVGENIJ NEFEDOV2019-10-30 17:33:57

Iron

EVGENIJ NEFEDOV, 2019-10-30 17:33:57

There is a need to assemble a server for several projects, there will be such hardware:
SuperMicro H11DSI-B server board
Processor AMD EPYC 7551P OEM
DDR4 2666MHz Samsung ECC Reg
Software raid1 of two 120GB SSDs will have Ubuntu and KVM virtualization on it
Question about disk space for virtual machines , I want to install 4 Intel SSDPE2KX010T701 NVME disks, 1TB each. and combine them into a software RAID5, will such a ride work normally and give the desired speed?

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4 answer(s)

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Armenian Radio, 2019-10-30
@nefedovgeka

RAID5 as a technology is recognized as unreliable . It is not uncommon for a second disk to be lost during a rebuild, which actually leads to the complete loss of all data on the array.

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Vladimir, 2019-10-30
@MechanID

Yes, it will work, although if you need speed - collect disks in RAID10

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AntHTML, 2019-10-31
@anthtml

Where are you going to look for 4 M2 under NVME?
And is it really necessary to shove everything on them, in virtual machines I try by analogy with computers - system disks on the datastore from SSD RAID1, the rest on the HDD (or datastore or immediately forwarded) - pah-pah so far it does a great job