Do you really need it? Yes! We use it all the time to do just that, and
did especially on zLinux, because the physical DASD devices were fixed in
size, and relatively small. We also did it because it allowed us to
non-disruptively move between DASD, using the pvmove command. This allowed
us to remain up through several major disk subsystem replacements, both on
the zSeries boxes and on Intel based Linux servers. Anything that avoids
downtime for my users, and masks infrastructure changes from them is a
³Good Thing (tm)².
--
Robert P. Nix | Sr IT Systems Engineer |  Data Center Infrastructure
Services
Mayo Clinic| 200 First Street SW | Rochester, MN 55905

507-284-0844 | nix.rob...@mayo.edu





On 10/5/15, 7:56 AM, "Linux on 390 Port on behalf of Sergey Korzhevsky"
<LINUX-390@VM.MARIST.EDU on behalf of s_korzhev...@iba.by> wrote:

>Hi All,
>
>    Could you, please, explain me a real usage of the LVM in the server
>environments with z/VM or whatever.
>Do you really need to "online" expand your "opt" or "home" directory which
>is worth to have additional layer in disk access?
>Moreover,  databases already have such functionality
>(tablespace/containers), so they don't need LVM.
>
>Thank you.
>
>
>
>        WBR, Sergey
>
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