Date: Tue, 01 Sep 2009 19:10:34 +0200 From: Miroslav Lachman <000.fbsd@quip.cz> To: Maciej Jan Broniarz <gausus@gausus.net> Cc: freebsd-stable@freebsd.org, Thomas Backman <serenity@exscape.org> Subject: Re: zfs on gmirror slice Message-ID: <4A9D558A.9070609@quip.cz> In-Reply-To: <a7454e2f0909010904s224be2ectdd18eb887f4c1311@mail.gmail.com> References: <a7454e2f0909010704g2fb27216hacb3ffd2cae5594c@mail.gmail.com> <061541E3-F301-46C4-8ECB-5B05854F0EAA@exscape.org> <a7454e2f0909010904s224be2ectdd18eb887f4c1311@mail.gmail.com>
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Maciej Jan Broniarz wrote:
> 2009/9/1 Thomas Backman <serenity@exscape.org>:
>
>>On Sep 1, 2009, at 4:04 PM, Maciej Jan Broniarz wrote:
>>
>>
>>I'm not familiar with gmirror, but it'd be a way better idea to mirror it
>>using ZFS if possible - that way you get self-healing and stuff like that,
>>which you won't if ZFS doesn't have a mirror/RAIDZ setup, but only sees a
>>single slice.
>>
>
>
> I would like to do so. I have to disks (ad4 and ad5). Is it possible
> to create two slices on both disks (eg ad4s1 and ad4s2 for ad4).
> Then to create gmirror on ad4s1, install freebsd on it so it would
> boot from it. Then, after having my system running to create zfs
> mirror from ad4s2 and ad5s2?
Yes, I am using it this way:
root@cage ~/# gmirror status
Name Status Components
mirror/gms1 COMPLETE ad4s1
ad6s1
root@cage ~/# zpool status
pool: tank
state: ONLINE
scrub: none requested
config:
NAME STATE READ WRITE CKSUM
tank ONLINE 0 0 0
mirror ONLINE 0 0 0
ad4s2 ONLINE 0 0 0
ad6s2 ONLINE 0 0 0
errors: No known data errors
root@cage ~/# zpool list
NAME SIZE USED AVAIL CAP HEALTH ALTROOT
tank 444G 353G 91.2G 79% ONLINE -
gmirror gms1 is for system files, ports etc. zpool (444GB) is for jails
Miroslav Lachman
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