[OmniOS-discuss] zfs send | recv

Mon Jun 11 10:31:31 UTC 2018

I think I really have to start investigating using 3rd party apps again. Nexenta doesn't let me change the zfs send command. I can only adjust settings for the autosync job.

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Oliver Weinmann
Head of Corporate ICT

Telespazio VEGA Deutschland GmbH
Europaplatz 5 - 64293 Darmstadt - Germany
Ph: +49 (0)6151 8257 744 | Fax: +49 (0)6151 8257 799
oliver.weinmann at telespazio-vega.de<mailto:oliver.weinmann at telespazio-vega.de>
www.telespazio-vega.de

Registered office/Sitz: Darmstadt, Register court/Registergericht: Darmstadt, HRB 89231; Managing Director/Geschäftsführer: Sigmar Keller

From: OmniOS-discuss <omnios-discuss-bounces at lists.omniti.com> On Behalf Of Guenther Alka
Sent: Montag, 11. Juni 2018 12:16
To: omnios-discuss at lists.omniti.com
Subject: Re: [OmniOS-discuss] zfs send | recv

I suppose you can either keep the last snaps identical on source and target with a simple zfs send recursively or
you need a script that cares about and does a send per filesystem to allow a different number of snaps on the target system.

This is not related to Nexenta but I saw the same on current OmniOS -> OmniOS as they use the same Open-ZFS base Illumos

Gea
@naapp-it.org
Am 11.06.2018 um 10:58 schrieb Oliver Weinmann:
Yes it is recursively. We have hundreds of child datasets so single filesystems would be a real headache to maintain. L

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Oliver Weinmann
Head of Corporate ICT

Telespazio VEGA Deutschland GmbH
Europaplatz 5 - 64293 Darmstadt - Germany
Ph: +49 (0)6151 8257 744 | Fax: +49 (0)6151 8257 799
oliver.weinmann at telespazio-vega.de<mailto:oliver.weinmann at telespazio-vega.de>
www.telespazio-vega.de<http://www.telespazio-vega.de>

Registered office/Sitz: Darmstadt, Register court/Registergericht: Darmstadt, HRB 89231; Managing Director/Geschäftsführer: Sigmar Keller

From: OmniOS-discuss <omnios-discuss-bounces at lists.omniti.com><mailto:omnios-discuss-bounces at lists.omniti.com> On Behalf Of Guenther Alka
Sent: Montag, 11. Juni 2018 09:55
To: omnios-discuss at lists.omniti.com<mailto:omnios-discuss at lists.omniti.com>
Subject: Re: [OmniOS-discuss] zfs send | recv

did you replicate recursively?
keeping a different snap history should be possible when you send single filesystems.

gea
@napp-it.org
Am 11.06.2018 um 09:11 schrieb Oliver Weinmann:
Hi,

We are replicating snapshots from a Nexenta system to an OmniOS system. Nexenta calls this feature autosync. While they say it is only 100% supported between nexenta systems, we managed to get it working with OmniOS too. It's Not rocket science. But there is one big problem. In the autosync job on the Nexenta system one can specify how many snaps to keep local on the nexenta and how many to keep on the target system. Somehow we always have the same amount of snaps on both systems. Autosync always cleans all snaps on the dest that don't exist on the source. I contacted nexenta support and they told me that this is due to different versions of zfs send and zfs recv. There should be a -K  flag, that instructs the destination to not destroy snapshots that don't exist on the source. Is such a flag available in OmniOS? I assume the flag is set on the sending side so that the receiving side has to understand it.

Best Regards,

Oliver

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Oliver Weinmann
Head of Corporate ICT

Telespazio VEGA Deutschland GmbH
Europaplatz 5 - 64293 Darmstadt - Germany
Ph: +49 (0)6151 8257 744 | Fax: +49 (0)6151 8257 799
oliver.weinmann at telespazio-vega.de<mailto:oliver.weinmann at telespazio-vega.de>
www.telespazio-vega.de<http://www.telespazio-vega.de>

Registered office/Sitz: Darmstadt, Register court/Registergericht: Darmstadt, HRB 89231; Managing Director/Geschäftsführer: Sigmar Keller

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