Re: [Xen-users] Cheap IOMMU hardware and ECC support importance

[Kuba <kuba.0000@xxxxx>]

W dniu 2014-07-05 13:27, Gordan Bobic pisze:

> > > Hm, what for?  The VMs I have are all different, so there's no point in
> > > cloning them.  And why would I clone my data?  I don't even have the
> > > disk capacity for that and am glad that I can make a backup.
> > I tend to clone "production" VMs before I start fiddling with them, so
> > that I can test potentially dangerous ideas without any consequences.
> > Clones are "free" - they only start using more space when you introduce
> > some difference between the clone and the original dataset. You can
> > always 'promote' them so they become independent from the original
> > dataset (using more space as required). Cloning is just a tool that you
> > might or might not find useful.
> This is, indeed, a most excellent point about a good, useful use of
> cloning in zfs. Thank you for pointing it out. :)
:)

> > > > http://www.zdnet.com/blog/storage/dram-error-rates-nightmare-on-dimm-street/638
> > > Yes, I've seen that.  It's for RAM, not disk errors detected through ZFS
> > > checksumming.
> > And RAM has nothing to do with the data on the disks.
> Unless the bit flip happens in the write-out buffer before it is
> committed to disk.
My point exactly.

Kuba

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