• twitter

  • Advertisements

Hurting you VM performance using SCP (or fast SCP)

I never knew this:

Using SCP/CP to place the VMDK on the VMFS volume can cause poor disk performance for the VM, vmfkstools properly allocates the space to prevent this.


vmkfstools allocates all space at once and then copies the data, a “normal” copy (cp, scp, …) allocates the space while copying.
This behavior can lead to VMDK fragmentation and therefore to poor disk performance.



From here


Leave a Reply

Fill in your details below or click an icon to log in: Logo

You are commenting using your account. Log Out / Change )

Twitter picture

You are commenting using your Twitter account. Log Out / Change )

Facebook photo

You are commenting using your Facebook account. Log Out / Change )

Google+ photo

You are commenting using your Google+ account. Log Out / Change )

Connecting to %s

%d bloggers like this: