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On Tuesday 27 May 2014 23:35:26 Alan McKinnon wrote: |
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> On 27/05/2014 17:12, J. Roeleveld wrote: |
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> > I have a yearly (full), monthly, weekly and daily. Each incremental is |
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> > against the most recent one of itself or longer period. |
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> > That means having to keep multiple snapshots active, which I prefer to |
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> > avoid. |
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> > |
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> > But, it is a good idea for backing up desktops and laptops. |
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> |
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> I'm curious why you have yearly snapshots. I've yet to find any sane |
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> production system where a yearly backup had any worth at all. Even |
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> monthly is pushing it... |
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> |
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> Or do you do it to have a decent start point for incrementals? |
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It's to have a decent start point for incrementals. |
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Below are the 2 biggest shares on the NAS: |
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/dev/xvda17 7.1T 5.9T 1.2T 84% /data/unsorted |
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/dev/xvda16 3.0T 2.4T 517G 83% /data/software |
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It is impossible to do a full backup on a daily or even weekly basis. |
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Previously, I had 1 full backup and then a daily incremental. This appears |
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like a good idea, untill you need to restore the filesystem from backups when |
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the crash occured 2 years later. |
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That is 1 full backup and over 700 incrementals.... |
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Currently, I do the following: |
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Every year, a full backup |
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Then, every month, I have an incremental based on either the yearly or |
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previous monthly. |
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Ditto for the weekly (but then based on monthly or weekly) |
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And again for the daily. |
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-- |
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