Well... LVM doesn't do the job that I need... But I found this article https://www.gonscak.sk/?p=201 which makes the way....
Thanks for all the help and comments about this.... Cheers. --- Gilberto Nunes Ferreira (47) 3025-5907 (47) 99676-7530 - Whatsapp / Telegram Skype: gilberto.nunes36 Em qui., 30 de jul. de 2020 às 10:25, Gilberto Nunes < [email protected]> escreveu: > 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]https://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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