Le 2021-08-05 12:50, José María Terry Jiménez a écrit :
El 5/8/21 a las 12:35, François Patte escribió:
> Bonjour,
>
> I have a raid-1 array of 2 disks (1 Tb) and I want to replace these
> disks by 2 2Tb disks.
>
> Here is the result of lsblk for these disks:
>
> sde 8:64 0 931,5G 0 disk
> ├─sde1 8:65 0 40G 0 part
> │ └─md4 9:4 0 40G 0 raid1
> │ ├─systeme-swap 253:1 0 4G 0 lvm [SWAP]
> │ ├─systeme-var 253:2 0 15G 0 lvm /var
> │ └─systeme-chiffre 253:3 0 15G 0 lvm
> └─sde2 8:66 0 891,5G 0 part
> └─md5 9:5 0 891,4G 0 raid1
> └─data-home 253:5 0 891G 0 lvm /home
> sdf 8:80 0 931,5G 0 disk
> ├─sdf1 8:81 0 40G 0 part
> │ └─md4 9:4 0 40G 0 raid1
> │ ├─systeme-swap 253:1 0 4G 0 lvm [SWAP]
> │ ├─systeme-var 253:2 0 15G 0 lvm /var
> │ └─systeme-chiffre 253:3 0 15G 0 lvm
> └─sdf2 8:82 0 891,5G 0 part
> └─md5 9:5 0 891,4G 0 raid1
> └─data-home 253:5 0 891G 0 lvm /home
>
> My idea is to stop the array, remove one disk and have this array in
> degraded mode with the other disk. Then plug a new disk (2Tb) on
> which I build a new array in degraded mode with all partitions and
> lvm needed. Then I transfer all the data from the remaining 1Tb disk
> to the new array, replace the 1Tb disk by a new 2Tb disk and then
> synchronize the new array.
>
> Is it the good way to proceed? Or is there another better way?
>
> Thank you for all advices.
Search for mdadm --grow
See for example:
https://www.claudiokuenzler.com/blog/865/replace-drive-with-bigger-one-gr...
or
https://www.tjansson.dk/2015/12/growing-a-mdadm-raid-by-replacing-disks/ Thank you
for these addresses, I found this one too:
https://www.claudiokuenzler.com/blog/865/replace-drive-with-bigger-one-gr...
--
François Patte
UFR de mathématiques et informatique
Laboratoire CNRS MAP5, UMR 8145
Université Paris Descartes
45, rue des Saints Pères
F-75270 Paris Cedex 06
Tél. +33 (0)6 7892 5822