[linux-lvm] Snapshots and disk re-use

[James Hawtin]

On 06/04/2011 01:47, Jonathan Tripathy wrote:
>
> Currently, as part of our procedure, we zero LVs once a customer has 
> left our service. The reason why we don't zero on allocation is that 
> customer usually expect quick setup times (under 10 minutes) and 
> zeroing gigabytes worth of space can take too long. Getting new zeroed 
> LVs ready before sign ups also isn't an option but for other reasons.

Very reasonable

It however is a shame than lvm cannot zero PE (physical extents) on 
first access or do a proper background initialisation. As would happen 
on hardware raids.

James