[ale] to lvm or not lvm is my dillema

[jc.lightner at comcast.net]

I like LVM because it allows one to quickly change layouts without having to
undo anything.   One can add to an existing LV more easily than to existing
partitions.   One also doesn't run up against partition boundaries causing
issues when a new filesystem is needed.   A new LV can be added so long as
you have space.

I got in the habit of setting up LVM even on single drives (often the
primary drive in a server) because of events where original partitioning
became an issue later in the server's life.   Also I did LVM even on top of
disks presented by SAN or NAS as we found it made migrating the PVs/LVs from
one server to another easier.    It came in quite handy when migrating
Oracle cluster environments to newer servers as I learned the hard way early
on.   We used the SAN to set RAID level but then used LVM to make the
presented LUNs PVs and laid out LVs on those.

Funny:  I first learned of LVM on HP-UX.   The concept seemed silly to me
until I got familiar with using it.   "You want me to make all my disks a
single Physical Volume (PV) then slice it up into Logical Volumes (LVs).
How does that make more sense than just partitioning in the first place.

-----Original Message-----
From: Ale <ale-bounces at ale.org> On Behalf Of Calvin Harrigan via Ale
Sent: Thursday, January 1, 2026 4:52 PM
To: ale at ale.org
Cc: Calvin Harrigan <calvin.harrigan at gmail.com>
Subject: Re: [ale] to lvm or not lvm is my dillema

Depends. What do you want to do?
Simply, do you want to create a single 512GB volume (Linear/JBOD), or
something more intricate like striping(raid 0) or mirroring(raid1).
Understanding there are pros and cons for each approach.


On 1/1/2026 4:44 PM, Narahari Lakshminarayana via Ale wrote:
> Friends:
>
> I am installing DEBIAN on my ASUS motherboard based desktop.
> I am at the stage where it is asking me to partition the disks.
>
> NVMe-1 blank 256GB
> NVMe-2 Window 11 exists from broken laptop 256GB
>
> Does it make sense to install LVM ?
>
> What does it get me ?
>
> -N
>
> _______________________________________________
> Ale mailing list
> Ale at ale.org
> https://mail.ale.org/mailman/listinfo/ale
> See JOBS, ANNOUNCE and SCHOOLS lists at
> http://mail.ale.org/mailman/listinfo


-- 
Calvin Harrigan

_______________________________________________
Ale mailing list
Ale at ale.org
https://mail.ale.org/mailman/listinfo/ale
See JOBS, ANNOUNCE and SCHOOLS lists at
http://mail.ale.org/mailman/listinfo