Re: [PATCH v1 00/30] Ext4 snapshots

[Valdis . Kletnieks]

On Thu, 09 Jun 2011 13:54:13 +0300, "Amir G." said:

> Why do you keep saying 'backup only'?
> There is a huge difference between having long lived snapshots,
> like CTERA products have, and temporary snapshot for backup
> purpose (for which LVM is adequate).

I must have blinked somewhere - I'm not convinced LVM is even "adequate" for
backup purposes.  In particular, how does an LVM-level snapshot deal with the
"metadata in memory" problem (basically the exact same problem as running fsck
on a disk partition that is already mounted)?

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