Davies,Matt wrote:

Hi everyone,

It took about 8 hours to scan the volume. Afterwards, "df -s" showed that it saved 0%.

Netapp suggested that I wait for the old snapshots to delete, but it still didn't help.

Does anyone have any ideas about this ?

if you are running a lun then dedup wont do much,

Snapshots don't dedup, wait a bit and see what it looks like once all the older snapshots have timed out. Deleting them manually should work but it can take quite a while to claim the freed space back if you're filer is fullish.

________________________________

From: owner-toasters@mathworks.com [mailto:owner-toasters@mathworks.com] On Behalf Of Davies,Matt Sent: Monday, August 10, 2009 11:16 AM To: toasters@mathworks.com Subject: CIFS volume deduplication

Hi everyone,

We have a NetApp Filer 3040 running 7.2.6.1. We have configured Dedupe on a few volumes with ESX VM's and have saved about 15-25% disk space. Last week, we ran it on our CIFS Volume (Homedir, Shared Drives, etc), which is 950Gigs, but we only saved about 700 megs. These are the following commands we used to start the deduplication...

sis on VOL sis start -s VOL

It took about 8 hours to scan the volume. Afterwards, "df -s" showed that it saved 0%.

Netapp suggested that I wait for the old snapshots to delete, but it still didn't help.

Does anyone have any ideas about this ?

Thanks

Matt

____________________________

Matt Davies

Director of International IT Operations

General Atlantic

83 Pall Mall

London

SW1Y 5ES

Tel: +44 207 484 3203

Fax: +44 207 484 2803

Mobile: +44 777 559 4265

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