Mailinglist Archive: opensuse (770 mails)

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Re: [opensuse] Separate /usr?
Andreas Jaeger said the following on 08/09/2012 08:42 AM:
On Thursday, August 09, 2012 08:38:14 Anton Aylward wrote:
Andreas Jaeger said the following on 08/09/2012 07:59 AM:
On the other hand, going forward I suggest to not setup a separate
/usr anymore, there's no benefit in it.

Backups?
More to the point, management of backups.

Oh, right, you've got some Sony DAT tape thing that can take half a
terabyte and a budget for an endless supply of tapes ...

Unlike many of us ...

I don't understand how a separate /usr helps with backups. Could you
elaborate, please?

Ah, you're thinking in terms of backup by tree, by file walking.
And copying live files. Perhaps while they are open.
Or and index and data pair getting copied 'out of sync'.
Risky. Think about it.

As I keep saying, I use LVM, so my idea of a backup is a snapshot of a
'partition'. More atomic.

I try to get my partitions to be around 5G so that I can copy the
snapshots to DVD.

Why? Because most machines these days, laptops included, come with DVD
burners.

Not everyone is in a corporate setting. Not everyone can afford
corporate style backup facilities. DVDs are easy. Snapshots & burn is
easy to automate for a home user, a SMB.

The result is a DVD that has a mountable file system, so retrieving
files is easy.

Arguments I don't want to get into:
* Will DVDs outlive/outlast tape?
* Are DVDs more robust than tape?
* Will solar flares ..

Oh never mind.

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