[Gluster-users] GlusterFS over multiples HDD

Alvin Starr
Thu, 30 Jul 2020 13:11:46 -0000

LVM supports mirroring or raid1.
So to create a raid1 you would do something like "lvcreate -n raidvol?
-L 1T --mirrors 1? /dev/bigvg"
You can add a mirror to an existing logical volume using lvconvert with
something like "lvconvert --mirrors +1 bigvg/unmirroredlv"

But other than simple mirroring you will need mdadm.



On 7/30/20 8:39 AM, Gilberto Nunes wrote:
> Doing some research and the chvg command, which is responsable?for
> create hotspare disks in LVM is available only in AIX!
> I have a Debian Buster box and there is no such command chvg. Correct
> me if I am wrong....
> ---
> Gilberto Nunes Ferreira
>
> (47) 3025-5907
> (47) 99676-7530 - Whatsapp / Telegram
>
> Skype: gilberto.nunes36
>
>
>
>
>
> Em qui., 30 de jul. de 2020 ?s 02:05, Strahil Nikolov
> <hunter86_bg at yahoo.com <mailto:hunter86_bg at yahoo.com>>
escreveu:
>
>     LVM allows creating/converting striped/mirrored LVs without any
>     dowtime and it's using the md module.
>
>     Best Regards,
>     Strahil Nikolov
>
>     ?? 28 ??? 2020 ?. 22:43:39 GMT+03:00, Gilberto Nunes
>     <gilberto.nunes32 at gmail.com <mailto:gilberto.nunes32 at
gmail.com>>
>     ??????:
>     >Hi there....
>     >
>     >'till now, I am using glusterfs over XFS and so far so good.
>     >Using LVM too....
>     >Unfortunately, there is no way with XFS to merge two or more HDD,
in
>     >order
>     >to use more than one HDD, like RAID1 or RAID5.
>     >My primary goal is to use two server with GlusterFS on top of
>     multiples
>     >HDDs for qemu images.
>     >I have think about BTRFS or mdadm.
>     >Anybody has some experience on this?
>     >
>     >Thanks a lot
>     >
>     >---
>     >Gilberto Nunes Ferreira
>
>
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--
Alvin Starr                   ||   land:  (647)478-6285
Netvel Inc.                   ||   Cell:  (416)806-0133
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