From nobody Sat Apr 29 12:41:07 2023 X-Original-To: freebsd-hackers@mlmmj.nyi.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2610:1c1:1:606c::19:1]) by mlmmj.nyi.freebsd.org (Postfix) with ESMTP id 4Q7pxM3mJdz47jYP for ; Sat, 29 Apr 2023 12:41:11 +0000 (UTC) (envelope-from mad@madpilot.net) Received: from mail.madpilot.net (vogon.madpilot.net [159.69.1.99]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits) server-digest SHA256) (Client did not present a certificate) by mx1.freebsd.org (Postfix) with ESMTPS id 4Q7pxM2wP1z44Hh for ; Sat, 29 Apr 2023 12:41:11 +0000 (UTC) (envelope-from mad@madpilot.net) Authentication-Results: mx1.freebsd.org; none Received: from mail (mail [192.168.254.3]) by mail.madpilot.net (Postfix) with ESMTP id 4Q7pxL1jGqz6wBX; Sat, 29 Apr 2023 14:41:10 +0200 (CEST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=madpilot.net; h= content-transfer-encoding:content-type:content-type:in-reply-to :from:from:references:content-language:subject:subject:date:date :message-id:received; s=bjowvop61wgh; t=1682772068; x= 1684586469; bh=vCAm614GEdKapHM4bxO18tRj0US5zkIGI2xytukvPR0=; b=w kKiSkMlyYo149WOD1EOFOl8PQbgFWG7G02UV6Bq90dLtaK4hpOldzCKMKc0m4/r1 ZbRw+tc7DnuvjKMfuT5iwYWV1l6VhuO59W5dqrRX2NMKkHaxs7ychtXbq4nA9YOz zZRWoGjhof9BHlSRNyIZusO1Pj7TTn2iiZCua6be0zN8IYBzdmLrhTlJHvI3xM6Z YkYidliAE4V7kCO2wTTEfAhUQmtufKLs5DPzTWmFydbJCW2sWcRuyKfylixPrmFe ZeFYLI1LjTZLlRrxX1RS3PcupzQhS5NlMjADM+HAMY0g3EJk8XmGL8lzKwnmMitp HosmpXkCBXT8EsKeJlaSA== Received: from mail.madpilot.net ([192.168.254.3]) by mail (mail.madpilot.net [192.168.254.3]) (amavisd-new, port 10026) with ESMTP id x6U3_iz20p8V; Sat, 29 Apr 2023 14:41:08 +0200 (CEST) Message-ID: <9ec8d674-0e1e-5701-7879-3e61e68b5976@madpilot.net> Date: Sat, 29 Apr 2023 14:41:07 +0200 Subject: Re: BHYVE_SNAPSHOT Content-Language: en-US To: Mario Marietto , Tomek CEDRO Cc: freebsd-hackers References: <78195461-2297-ca49-22a5-291cd805d59a@madpilot.net> From: Guido Falsi In-Reply-To: Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit X-Rspamd-Queue-Id: 4Q7pxM2wP1z44Hh X-Spamd-Bar: ---- X-Spamd-Result: default: False [-4.00 / 15.00]; REPLY(-4.00)[]; ASN(0.00)[asn:24940, ipnet:159.69.0.0/16, country:DE] X-Rspamd-Pre-Result: action=no action; module=replies; Message is reply to one we originated X-ThisMailContainsUnwantedMimeParts: N List-Id: Technical discussions relating to FreeBSD List-Archive: https://lists.freebsd.org/archives/freebsd-hackers List-Help: List-Post: List-Subscribe: List-Unsubscribe: Sender: owner-freebsd-hackers@freebsd.org On 29/04/23 14:06, Mario Marietto wrote: > Hello. > > I do the smapshots of the bhyve vms simply by copying the img file with > the cp command. What the "internal" function added by the developers add > to what I already do ? As explained in my message this "snapshot" functionality allows snapshotting live machines, keeping their state and RAM, allowing for a "live and running" VM to be suspended and restarted at a later time, maybe even on another physical machine. I don't know the details, it is quite possible that to move to another physical machine some extra requirements apply, like, for example, having the very same CPU model, or a very similar one. -- Guido Falsi