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External Backups size and type Single Or RAD
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Feb 12, 2018 15:22:34   #
TriX Loc: Raleigh, NC
 
blackest wrote:
I like raid its a nice way to be sure of short term backup , i mean if I copy a card to a raid1 drive there are 2 copies from the get go as well as the card and if things work out you can read faster too. But for redundant backup single drives with contents duplicated can be more flexible. for one thing they can be in separate locations. maybe you get a power spike from lightening this might take out both raid drives being hooked up on the same controller... Maybe better to have an online and offline backup hooking up the off line backup periodically to keep the third backup up to date.
I like raid its a nice way to be sure of short ter... (show quote)


Yep, the vast majority of double drive failures at a single location are from environmental causes (lightning, power, A/C and cooling failure, etc.). Doesn’t happen often, but like fires, floods and tornados, it DOES happen, hence the reason for a 3rd off-site DR copy.

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Feb 12, 2018 15:40:55   #
jdubu Loc: San Jose, CA
 
blackest wrote:
I like raid its a nice way to be sure of short term backup , i mean if I copy a card to a raid1 drive there are 2 copies from the get go as well as the card and if things work out you can read faster too. But for redundant backup single drives with contents duplicated can be more flexible. for one thing they can be in separate locations. maybe you get a power spike from lightening this might take out both raid drives being hooked up on the same controller... Maybe better to have an online and offline backup hooking up the off line backup periodically to keep the third backup up to date.
I like raid its a nice way to be sure of short ter... (show quote)


You are right about that. I have my Raid systems live auto-backed up off site to another NAS system, as well as an individual HD backup that is only live when I do the actual current backup. After that, it gets stored away until the next backup.

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