From: Frank Steinmetzger <Warp_7@gmx.de>
To: gentoo-user@lists.gentoo.org
Subject: Re: [gentoo-user] [OT] Using an odd number of drives in ZFS RaidZ
Date: Thu, 1 Jul 2021 19:35:14 +0200 [thread overview]
Message-ID: <YN380v8jB7KOvJyI@kern> (raw)
In-Reply-To: <5d972c64-3803-9e14-9302-3cb8ca4eb09e@youngman.org.uk>
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Am Thu, Jul 01, 2021 at 04:01:25PM +0100 schrieb antlists:
> On 01/07/2021 14:47, Robert David wrote:
> > Hi Frank,
> >
>
> >
> > In any of my data arrays I have long time migrated off the RAIDZ to the
> > MIRROR or RAID10. You will find finally that the RAIDZ is slow and not
> > very flexible.
Flexibility indeed. This bites me in the butt now. But performance is
sufficient for me, because everything can saturate gigabit ethernet and
there are no VMs involved.
A scrub currently takes 10½ hours. Considering each drive is filled with
6 TB * 80 % = 4.8 TB, that’s an average of 130 MB/s/device which seems not
so bad for 5400 rpm drives.
When I installed drives #3 and 4, I thought long and hard about whether to
use Raid-10 or Z2. The increased resilience won the argument (any 2 drives
over 2 particular drives).
> > If you really need the additional space, consider adding second jbod
> > with another disks.
>
> That'd be my approach - migrate a load of stuff off onto another disk
> elsewhere, but that's not what the OP wants to do.
Yeah… I know that for some people, carrying around TBs of movies and TV
series is overkill, but I like having them, and I like having them all in
this neat little box:
https://www.inter-tech.de/products/ipc/storage-cases/sc-4100
:)
--
Grüße | Greetings | Qapla’
Please do not share anything from, with or about me on any social network.
“If I could explain it to the average person, I wouldn't have been worth
the Nobel Prize.” – Richard Feynman
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next prev parent reply other threads:[~2021-07-01 17:35 UTC|newest]
Thread overview: 14+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-06-29 13:56 [gentoo-user] [OT] Using an odd number of drives in ZFS RaidZ Frank Steinmetzger
2021-06-30 20:00 ` antlists
2021-06-30 23:31 ` Frank Steinmetzger
2021-06-30 20:45 ` Neil Bothwick
2021-06-30 23:31 ` Frank Steinmetzger
2021-07-01 1:29 ` William Kenworthy
2021-07-02 15:09 ` J. Roeleveld
2021-07-01 15:07 ` antlists
2021-07-01 17:21 ` Frank Steinmetzger
2021-07-01 13:47 ` Robert David
2021-07-01 15:01 ` antlists
2021-07-01 17:35 ` Frank Steinmetzger [this message]
2021-07-04 10:56 ` Robert David
2021-07-02 15:13 ` J. Roeleveld
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