From: Alan McKinnon <alan.mckinnon@gmail.com>
To: gentoo-user@lists.gentoo.org
Subject: Re: [gentoo-user] Hard drive storage questions
Date: Tue, 05 May 2015 08:41:13 +0200 [thread overview]
Message-ID: <55486609.9000103@gmail.com> (raw)
In-Reply-To: <CADqA9ub7e1dLVoq+oVUff-twj7B4ws4sOnotyxH3SGBVvY1tcw@mail.gmail.com>
On 04/05/2015 20:42, Nuno Magalhães wrote:
> Greetings gents.
>
> I may have missed it, but i haven't seen this suggested yet: RAID+LVM.
> If you already have a 3TB drive, buy another (or two more) and build a
> RAID1 or 5 array on them. Then build your LVM on top of /dev/md0 (or
> whatever device your raid is).
>
> Another approach is ZFS with RAID-Z or similar. I don't know how/if
> ZFS splits data among the drives, but i assume it's wise enough to do
> so in a way similar to a RAID+LVM combo.
That's a good analogy. ZFS spreads it's data out across multiple drives
using an n-drives for data plus m-drives for parity type setup. And the
whole lot forms a storage pool.
The main difference is that ZFS does all it's checksumming in software,
and it's one monolithic system. You can think of it being sort of a
combination of RAID and LVM features, but it's not implemented that way.
> If going RAID, make sure the rpm and cache are the same for
> performance's sake, and you can mix and match drives from different
> vendors (perhaps you should, to add to the redundancy).
>
> I don't know about btrfs, seems like it's still in a testing-phase so
> i'm not touching it yet.
>
> Just my 2¢
>
> Cheers,
> Nuno
>
--
Alan McKinnon
alan.mckinnon@gmail.com
next prev parent reply other threads:[~2015-05-05 6:41 UTC|newest]
Thread overview: 59+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-04-28 8:39 [gentoo-user] Hard drive storage questions Dale
2015-04-28 14:49 ` Francisco Ares
2015-04-28 15:01 ` Alan McKinnon
2015-04-28 15:24 ` Neil Bothwick
2015-04-28 17:38 ` Rich Freeman
2015-04-28 18:11 ` Neil Bothwick
2015-04-28 18:31 ` Rich Freeman
2015-04-28 18:41 ` Neil Bothwick
2015-04-28 22:02 ` [gentoo-user] " walt
2015-04-29 1:24 ` Rich Freeman
2015-04-29 6:20 ` Alan McKinnon
2015-04-29 14:31 ` Grant Edwards
2015-04-29 6:13 ` [gentoo-user] " Alan McKinnon
2015-04-29 7:52 ` Neil Bothwick
2015-05-04 7:39 ` Dale
2015-05-04 7:46 ` Neil Bothwick
2015-05-04 8:13 ` Mick
2015-05-04 8:26 ` Dale
2015-05-04 8:23 ` Dale
2015-05-04 10:31 ` Neil Bothwick
2015-05-04 10:40 ` Dale
2015-05-04 11:26 ` Neil Bothwick
2015-05-09 10:56 ` Dale
2015-05-09 12:59 ` Rich Freeman
2015-05-09 14:46 ` Todd Goodman
2015-05-09 18:16 ` Rich Freeman
2015-05-04 11:35 ` Rich Freeman
2015-05-04 18:42 ` Nuno Magalhães
2015-05-05 6:41 ` Alan McKinnon [this message]
2015-05-05 10:56 ` Rich Freeman
2015-05-05 11:33 ` Neil Bothwick
2015-05-05 12:05 ` Mick
2015-05-05 12:21 ` Neil Bothwick
2015-05-05 12:39 ` Mick
2015-05-05 12:53 ` Rich Freeman
2015-05-05 21:50 ` Neil Bothwick
2015-05-05 22:21 ` Bill Kenworthy
2015-05-05 22:33 ` Bill Kenworthy
2015-05-04 10:57 ` Alan Mackenzie
2015-04-28 15:02 ` Rich Freeman
2015-05-04 7:23 ` Dale
2015-05-05 3:01 ` Walter Dnes
-- strict thread matches above, loose matches on Subject: below --
2018-11-09 1:16 Dale
2018-11-09 1:31 ` Jack
2018-11-09 1:43 ` Dale
2018-11-09 2:04 ` Andrew Lowe
2018-11-09 2:07 ` Bill Kenworthy
2018-11-09 8:39 ` Neil Bothwick
2018-11-09 2:29 ` Rich Freeman
2018-11-09 8:17 ` Bill Kenworthy
2018-11-09 13:25 ` Rich Freeman
2018-11-09 9:02 ` J. Roeleveld
2018-11-11 0:45 ` Dale
2018-11-11 21:41 ` Wol's lists
2018-11-11 22:17 ` Dale
2018-11-09 9:24 ` Wols Lists
2015-04-27 7:41 Dale
2015-04-28 18:25 ` Daniel Frey
2015-04-28 21:23 ` Dale
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