Selfhosted
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just my 2 cents, if youre going to do raid, buy a thing that will do it...
a nas or enclosure where the hardware does all the heavy lifting. do not build raided system from a bunch of disks... i have had, and have had friends have many failures over the years from those home brew raids failing in one way or another and its usually the software that causes the raid to go sideways.. mayvbe shits better today than it was 10-20 years ago.
its just off my list. i bought a bunch of cheap nas devices that handle the raid, and then i mirror those devices for redundancy.
Y'all must be doing something wrong because HW raid has been hot garbage for at least 20years. I've been using software raid (mdadm, ZFS) since before 2000 and have never had a problem that could be attributed to the software raid itself, while I've had all kinds of horrible things go wrong with HW raid. And that holds true not just at home but professionally with enterprise level systems as a SysAdmin.
With the exception of the (now rare) bare metal windows server, or the most basic boot drive mirroring for VMware (with important datastores on NAS/SAN which are using software raid underneath, with at most some limited HW assisted accelerators) , hardly anyone has trusted hardware raid for decades.
Y’all must’ve been doing something wrong with your hardware raid to have so many problems. Anecdotally, as an admin for 20+ years, I’ve never had a significant issue with hardware raid. The exception might be the Sun 3500 arrays. Those were such a problem and we had dozens of them. No lost data, but so many controller issues. I just left some of them beeping for a while in the server room since data was still being served.
Of course at the enterprise level we have sufficient redundancies built in, but I also use both hardware and software raid at home. No issues with either really.
So what were you doing wrong to have so much trouble with the Sun 3500's?
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