I am using Legacy... But I am using Virtualbox in my labs... Perhaps this is the problem... I don't do that in real hardware. But with spare disk (2 + 1) in mdadm it's fine.
--- Gilberto Nunes Ferreira (47) 3025-5907 (47) 99676-7530 - Whatsapp / Telegram Skype: gilberto.nunes36 Em qui., 30 de jul. de 2020 às 12:16, Strahil Nikolov <[email protected]> escreveu: > The crash with failed mdadm disk is not normal. We need to check it out. > > Are you using Legacy or UEFI ? > > Best Regards, > Strahil Nikolov > > На 30 юли 2020 г. 16:25:47 GMT+03:00, Gilberto Nunes < > [email protected]> написа: > >But I will give it a try in the lvm mirroring process.... Thanks > >--- > >Gilberto Nunes Ferreira > > > >(47) 3025-5907 > >(47) 99676-7530 - Whatsapp / Telegram > > > >Skype: gilberto.nunes36 > > > > > > > > > > > >Em qui., 30 de jul. de 2020 às 10:23, Gilberto Nunes < > >[email protected]> escreveu: > > > >> Well, actually I am not concerned ONLY about mirroring the data, but > >with > >> reliability on it. > >> Here during my lab tests I notice if I pull off a disk and then power > >on > >> the server, the LVM crashes... > >> On the other hand, with ZFS even in degraded state the system booted > >> normally. > >> The same happens with mdadm. That's the point. > >> > >> --- > >> Gilberto Nunes Ferreira > >> > >> (47) 3025-5907 > >> (47) 99676-7530 - Whatsapp / Telegram > >> > >> Skype: gilberto.nunes36 > >> > >> > >> > >> > >> > >> Em qui., 30 de jul. de 2020 às 10:18, Alvin Starr <[email protected]> > >> escreveu: > >> > >>> 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 às 02:05, Strahil Nikolov < > >>> [email protected]> escreveu: > >>> > >>>> LVM allows creating/converting striped/mirrored LVs without any > >dowtime > >>>> and it's using the md module. > >>>> > >>>> Best Regards, > >>>> Strahil Nikolov > >>>> > >>>> На 28 юли 2020 г. 22:43:39 GMT+03:00, Gilberto Nunes < > >>>> [email protected]> написа: > >>>> >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 > >>>> > >>> > >>> ________ > >>> > >>> > >>> > >>> Community Meeting Calendar: > >>> > >>> Schedule - > >>> Every 2nd and 4th Tuesday at 14:30 IST / 09:00 UTC > >>> Bridge: https://bluejeans.com/441850968 > >>> > >>> Gluster-users mailing > >[email protected]:// > lists.gluster.org/mailman/listinfo/gluster-users > >>> > >>> > >>> -- > >>> Alvin Starr || land: (647)478-6285 > >>> Netvel Inc. || Cell: > >(416)[email protected] || > >>> > >>> > >>> ________ > >>> > >>> > >>> > >>> Community Meeting Calendar: > >>> > >>> Schedule - > >>> Every 2nd and 4th Tuesday at 14:30 IST / 09:00 UTC > >>> Bridge: https://bluejeans.com/441850968 > >>> > >>> Gluster-users mailing list > >>> [email protected] > >>> https://lists.gluster.org/mailman/listinfo/gluster-users > >>> > >> >
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