Nexenta Project - enabling dedup on pool or dataset - The Nexenta Project

enabling dedup on pool or dataset

I have tried a few ways to enable dedup.

I am running NexentaCore 3.0 (Hardy 8.04/b133+).

When I enable compression, it works, but when I try to enable dedup, it gives me a "cannot set property error"

root@zfs1:/zfspool# zfs set compression=on zfspool/lucid
root@zfs1:/zfspool# zfs set dedup=on zfspool/lucid
cannot set property for 'zfspool/lucid': dataset does not exist

Am I missing something?

thanks,

Geoff

Replies

RE: enabling dedup on pool or dataset - Added by Anil Gulecha about 1 year ago

Does zfspool/lucid exist?

If yes, is this a fresh install? It could be that the disk is setup using a previous version of zfs.. and dedup property may not be available.

~Anil

RE: enabling dedup on pool or dataset - Added by Geoff Nordli about 1 year ago

Hi Anil.

Yes, the dataset exists, and I was able to set the compression on it.

I can also view the properties on the dataset to see that compression did get turned on.

This isn't a new install, so you are right, maybe I need to update the zfs file system. I wasn't sure about this part. Will version 4 work with dedup?

root@zfs1:/zfspool# zfs upgrade
This system is currently running ZFS filesystem version 4.

All filesystems are formatted with the current version.

thanks,

Geoff

RE: enabling dedup on pool or dataset - Added by Geoff Nordli about 1 year ago

You are right, I needed to upgrade

root@zfs1:/zfspool# zpool upgrade zfspool
This system is currently running ZFS pool version 22.

Successfully upgraded 'zfspool' from version 18 to version 22

root@zfs1:/zfspool# zfs set dedup=on zfspool/lucid

thanks for your guidance.

Geoff