- Location
- USA
I am aware of the existence of snapshots, are you aware of the word typically?Not in modern backup services. There's a thing called snapshots that makes this problem nonexistent
Regardless, my point stands. RAID is literally backup by definition, when an EXPERT says "raid is not backup" what they mean to say is "I am using a soundbite because it is easier to sell stupid bosses on it, RAID is technically backup, but it is a really poor backup system on its own."
when a layman says it, they are regurgitating soundbites without understanding it.
That is fake hardware raid. it has all of the drawbacks of software raid, all of the drawbacks of hardware raid, none of the benefits of either, and some unique drawbacks to itself (bios password thing, also losses array when bios is upgraded or when cmos battery dies). Never ever ever use the mobo bios raid
With mobo raid it is only a question of time. 100% of mobo cmos batteries eventually die on you, and that means a lost array. although it is worth noting that if you know what you are doing it IS possible to recover from that. I have in fact done so in the pasti know those are minority cases, but.. you know. first impressions and all XD
Your impressions are overall solid though.
BTW, speaking of modern. BTRFS and ZFS benefit greatly from RAID1 / 5 in that it allows them to catch and correct silent file corruption.
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