Re: Data Deduplication with the help of an online filesystem check

Jan-Frode Myklebust
2009-05-04T18:06:51Z

On 2009-05-04, Thomas Glanzmann <thomas@glanzmann.de> wrote:
>
>> As far as I understand, VMware already ships this "gold image" featu=
re
>> (as they call it) for Windows environments and claims it to be very
>> efficient.
>
> they call it ,,thin or shallow clones''

"thin or shallow clones" sounds more like sparse images. I believe "lin=
ked clones"
is the word for running multiple virtual machines off a single gold ima=
ge. Ref,
the "VMware View Composer" section of:

http://www.vmware.com/products/view/whatsincluded.html
=09

> Looking at the website content, it also revealed that VMware will hav=
e a
> similiar feature for their workhorse ,,esx server'' in the upcoming
> release, however my point still stands. Ship out a service pack for
> windows and you 1.5 Gbyte of modified data that is not deduped.=20

"All desktops that are linked to a master image can be patched or updat=
ed
simply by updating the master image, without affecting users=E2=80=99 =
settings,
data or applications."

-jf

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