LVM [WAS Re: Yum cache memory space -]

[Bill Davidsen]

Reindl Harald wrote:
>
>
> Am 06.09.2012 21:35, schrieb Steven Stern:
>> On 09/06/2012 01:47 PM, Joe Zeff wrote:
>>> On 09/06/2012 11:23 AM, Bill Davidsen wrote:
>>>> For which I am deeply grateful. Most of the time LVM is fine, even
>>>> preferred, but some times I really "want it my way" and now that's easy.
>>>
>>> Personally, I find LVM to be a great solution looking for a problem.  I
>>> only have one LVM partition, and that's only because I forgot to turn it
>>> off when I created it.  Of course, I'm only using Fedora for my home
>>> computer, and I can see how useful it can be in a production
>>> environment.  Maybe what we need is for anaconda to ask if this is a
>>> home or production installation, and have LVM default to off for home,
>>> on for production?
>>
>> If it were simple then LVM would be wonderful.  If, on detecting a new
>> drive, the system would say "Hey, you have a new drive. Do you want me
>> to extend one or more existing partitions there?", it would be workable.
>> But it's not that easy.
>
> and this is good so
> why?
>
> because many naive people would say "yes extend" without realize
> what happens if you have a LVM over 6 physical drives without a
> RAID after one of the drives is dying

Having anything over multiple drives without RAID means you really know what you 
are doing, or really *don't* know what you are doing. At least with LVM you can 
get rid of the failing part if it doesn't die before you do.

I agree the LVM is really hard to use, because the UI was designed by someone 
who doesn't think the way I do. My impression is that a lot of other people 
share this opinion.


-- 
Bill Davidsen <davidsen at tmr.com>
   "We have more to fear from the bungling of the incompetent than from
the machinations of the wicked."  - from Slashdot