From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.4 (2020-01-24) on inbox.vuxu.org X-Spam-Level: X-Spam-Status: No, score=-1.0 required=5.0 tests=DKIM_SIGNED,DKIM_VALID, HEADER_FROM_DIFFERENT_DOMAINS,HTML_MESSAGE,MAILING_LIST_MULTI, RCVD_IN_DNSWL_NONE autolearn=ham autolearn_force=no version=3.4.4 Received: from tb-ob1.topicbox.com (tb-ob1.topicbox.com [64.147.108.173]) by inbox.vuxu.org (Postfix) with ESMTP id 83D4B216B3 for ; Wed, 31 Jul 2024 06:55:59 +0200 (CEST) Received: from tb-mx0.topicbox.com (tb-mx0.nyi.icgroup.com [10.90.30.73]) by tb-ob1.topicbox.com (Postfix) with ESMTP id CFEF02EA0B for ; Wed, 31 Jul 2024 00:55:58 -0400 (EDT) (envelope-from bounce.mM3964b6785aa4767916a02f18.r522be890-2105-11eb-b15e-8d699134e1fa@9fans.bounce.topicbox.com) Received: by tb-mx0.topicbox.com (Postfix, from userid 1132) id CBD6120F577A; Wed, 31 Jul 2024 00:55:58 -0400 (EDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed; d=9fans.net; h=from:to :subject:message-id:in-reply-to:references:date:mime-version :content-type:content-transfer-encoding:list-help:list-id :list-post:list-subscribe:reply-to:list-unsubscribe; s=dkim-1; t=1722401758; x=1722488158; bh=pYmx/l2TqSTl6PFV1jiG1VlkJ9zYP/KE Rmy0V3uxkqI=; b=YojO4uX+a3PWs53nTdYKi0GclRbKWeYwIoy/1zN3WpnwZpmE 3n9YuJfpKUH0JQiKi9bVCsyiM8ec+at4z0keys0KBXiVfn++Sruo7wFnfqpBNa1M Tp8S86wIP1/bNmTstdw55XUayBEPjK0QeRzMeQcvtd6Udv7zhhlZQYBt1xA= From: moody@posixcafe.org To: 9fans <9fans@9fans.net> Subject: Re: [9fans] Re: venti/mirrorarenas usage Message-Id: <17224017540.7E061.420313@composer.9fans.topicbox.com> In-Reply-To: <85017E4A0291C2CFBF6184F32CD44E61@eigenstate.org> References: <85017E4A0291C2CFBF6184F32CD44E61@eigenstate.org> Date: Wed, 31 Jul 2024 00:55:54 -0400 MIME-Version: 1.0 Content-Type: multipart/alternative; boundary=17224017541.e3b20A3.420313 Content-Transfer-Encoding: 7bit Topicbox-Policy-Reasoning: allow: sender is a member Topicbox-Message-UUID: 2ae81364-4ef9-11ef-a54e-c256242d11b0 Archived-At: =?UTF-8?B?PGh0dHBzOi8vOWZhbnMudG9waWNib3guY29tL2dyb3Vwcy85?= =?UTF-8?B?ZmFucy9UY2EwZWIwZmJiMjQwNGUzMS1NMzk2NGI2Nzg1YWE0NzY3OTE2YTAy?= =?UTF-8?B?ZjE4Pg==?= List-Help: List-Id: "9fans" <9fans.9fans.net> List-Post: List-Software: Topicbox v0 List-Subscribe: Precedence: list Reply-To: 9fans <9fans@9fans.net> List-Unsubscribe: , Topicbox-Delivery-ID: 2:9fans:437d30aa-c441-11e9-8a57-d036212d11b0:522be890-2105-11eb-b15e-8d699134e1fa:M3964b6785aa4767916a02f18:1:l6aLrTLcwPTOAQ4MRCeNhFOFV34AXVonu8cju1Y3-jY --17224017541.e3b20A3.420313 Date: Wed, 31 Jul 2024 00:55:54 -0400 MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: quoted-printable I realize now I didn't answer with respect to the comparison to mirroring f= rom fs(3). These fundamentally solve different problem, fs(3) mirror is for= online disk mirroring. As in you have two drives in your machine and you w= ant your machine to use both of them for redundant storage(think RAID). Whe= re as venti/mirrorareans is designed for offline backups that are not alway= s online. You boot up some slow big drive (or other media) and write your a= renas to weekly/monthly/whatever. There really isn't much to compare betwee= n the two because the function they fit is entirely different from each oth= er. It would be more interesting I think to compare the usefulness of this = program as compared to venti/copy, since from a 50 ft view they seem to sol= ve the same problem. I presume the reasoning here is mirrorarenas avoids th= e overhead of (potentially) running two instances of venti on the same mach= ine to facilitate the duplication of data at a higher level. I don't see the lack of response here as an issue,=C2=A0 this original ques= tion hasn't even been up for 24 hours yet. I think its a bit silly to say t= hat this is an unreasonable amount of time to wait for a proper answer. If = someone wants to participate and wants to challenge their understanding by = suggesting to others how they think things work, I see no problem. However = I also do not think its unreasonable for people to be upset at objectively = false (and easily verifiable) information. ------------------------------------------ 9fans: 9fans Permalink: https://9fans.topicbox.com/groups/9fans/Tca0eb0fbb2404e31-M3964b= 6785aa4767916a02f18 Delivery options: https://9fans.topicbox.com/groups/9fans/subscription --17224017541.e3b20A3.420313 Date: Wed, 31 Jul 2024 00:55:54 -0400 MIME-Version: 1.0 Content-Type: text/html; charset=UTF-8 Content-Transfer-Encoding: quoted-printable
I realize now I didn't answer with respect= to the comparison to mirroring from fs(3). These fundamentally solve diffe= rent problem, fs(3) mirror is for online disk mirroring. As in you have two= drives in your machine and you want your machine to use both of them for r= edundant storage(think RAID). Where as venti/mirrorareans is designed for o= ffline backups that are not always online. You boot up some slow big drive = (or other media) and write your arenas to weekly/monthly/whatever. There re= ally isn't much to compare between the two because the function they fi= t is entirely different from each other. It would be more interesting I thi= nk to compare the usefulness of this program as compared to venti/copy, sin= ce from a 50 ft view they seem to solve the same problem. I presume the rea= soning here is mirrorarenas avoids the overhead of (potentially) running tw= o instances of venti on the same machine to facilitate the duplication of d= ata at a higher level.

I don't see the= lack of response here as an issue,  this original question hasn't= even been up for 24 hours yet. I think its a bit silly to say that this is= an unreasonable amount of time to wait for a proper answer. If someone wan= ts to participate and wants to challenge their understanding by suggesting = to others how they think things work, I see no problem. However I also do n= ot think its unreasonable for people to be upset at objectively false (and = easily verifiable) information.
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