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...