From: Tanstaafl <tanstaafl@libertytrek.org>
To: gentoo-user@lists.gentoo.org
Subject: Re: [gentoo-user] Re: ZFS
Date: Thu, 19 Sep 2013 06:37:38 -0400 [thread overview]
Message-ID: <523AD3F2.40301@libertytrek.org> (raw)
In-Reply-To: <20130919074441.GB12275@TranscendTheRubicon.fritz.box>
On 2013-09-19 3:44 AM, Hinnerk van Bruinehsen <h.v.bruinehsen@fu-
> You should definitely determine the right value for ashift on pool creation
> (it controls the alignment on the medium). It's an option that you afaik can only set
> on filesystem creation and therefore needs a restart from scratch if you get it
> wrong.
> According to the illumos wiki it's possible to run a mixed pool (if you have
> drives requiring different alignments[1])
> If in doubt: ask ryao (iirc given the right information he can tell you which
> are the right options for you if you can't deduce it yourself).
> Choosing the wrong alignment can cause severe performance loss (that's not
> a ZFS issue but happened when 4k sector drives appeared and tools like fdisk
> weren't aware of this).
Yikes...
Ok, shouldn't there be a tool or tools to help with this? Ie, boot up on
a bootable tools disk on the system with all drives connected, then let
it 'analyze' your system, maybe ask you some questions (ie, how you will
be configuring the drives/RAID, etc), then spit out an optimized config
for you?
It is starting to sound like you need to be a dang engineer just to use
ZFS...
next prev parent reply other threads:[~2013-09-19 10:38 UTC|newest]
Thread overview: 72+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-09-17 7:20 [gentoo-user] ZFS Grant
2013-09-17 7:36 ` Marc Stürmer
2013-09-17 8:05 ` Pandu Poluan
2013-09-17 8:22 ` Alan McKinnon
2013-09-17 9:44 ` Grant
2013-09-17 9:42 ` Grant
2013-09-17 10:11 ` Tanstaafl
2013-09-17 16:32 ` covici
2013-09-19 22:41 ` Douglas J Hunley
2013-09-20 23:12 ` Hinnerk van Bruinehsen
2013-09-19 22:46 ` Douglas J Hunley
2013-09-17 9:52 ` Joerg Schilling
2013-09-17 13:22 ` Grant
2013-09-17 13:30 ` Joerg Schilling
2013-09-17 16:39 ` Alan McKinnon
2013-09-18 4:06 ` Grant
2013-09-17 10:19 ` Tanstaafl
2013-09-17 13:21 ` Grant
2013-09-17 15:18 ` Michael Orlitzky
2013-09-17 15:40 ` Tanstaafl
2013-09-17 16:34 ` Michael Orlitzky
2013-09-17 17:00 ` Tanstaafl
2013-09-17 17:07 ` Michael Orlitzky
2013-09-17 17:34 ` Tanstaafl
2013-09-17 17:54 ` Stefan G. Weichinger
2013-09-18 4:11 ` Grant
2013-09-18 7:26 ` Stefan G. Weichinger
2013-09-18 15:17 ` Stefan G. Weichinger
2013-09-19 22:46 ` Douglas J Hunley
2013-09-20 9:17 ` Joerg Schilling
2013-09-20 11:17 ` Tanstaafl
2013-09-18 4:02 ` Grant
2013-09-17 18:00 ` Volker Armin Hemmann
2013-09-17 18:11 ` covici
2013-09-17 19:30 ` Volker Armin Hemmann
2013-09-18 4:20 ` Grant
2013-09-20 18:20 ` Grant
2013-09-20 23:07 ` Hinnerk van Bruinehsen
2013-09-21 4:34 ` Grant
2013-09-17 18:11 ` Tanstaafl
2013-09-17 19:30 ` Volker Armin Hemmann
2013-09-18 4:22 ` Bruce Hill
2013-09-18 8:03 ` Neil Bothwick
2013-09-18 12:55 ` [gentoo-user] ZFS James
2013-09-19 4:49 ` Grant
2013-09-19 7:43 ` Pandu Poluan
2013-09-19 7:44 ` Hinnerk van Bruinehsen
2013-09-19 7:47 ` Pandu Poluan
2013-09-19 8:04 ` Stefan G. Weichinger
2013-09-19 13:04 ` Grant
2013-09-19 10:37 ` Tanstaafl [this message]
2013-09-19 12:29 ` Grant
2013-09-19 12:54 ` Pandu Poluan
2013-09-19 13:01 ` Grant
2013-09-19 13:12 ` Pandu Poluan
2013-09-18 4:12 ` [gentoo-user] ZFS Grant
2013-09-18 9:56 ` Joerg Schilling
2013-09-18 17:04 ` Volker Armin Hemmann
2013-09-19 4:47 ` Grant
2013-09-20 15:11 ` Volker Armin Hemmann
2013-09-18 13:53 ` Stefan G. Weichinger
2013-09-19 1:02 ` Dale
2013-09-19 4:44 ` Grant
2013-09-19 7:40 ` Dale
2013-09-19 7:45 ` Pandu Poluan
2013-09-19 9:07 ` Joerg Schilling
2013-09-19 11:22 ` Dale
2013-09-19 11:27 ` Joerg Schilling
2013-09-22 1:19 ` Dale
2013-09-19 9:04 ` Joerg Schilling
2013-09-21 12:53 ` thegeezer
2013-09-21 16:49 ` Pandu Poluan
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