Madadm-notes: Difference between revisions
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All the damn details of mdadm that you can never remember when a !@#$!#@ drive dies | All the damn details of mdadm that you can never remember when a !@#$!#@ drive dies | ||
* [https://www.thomas-krenn.com/en/wiki/Mdadm_recovery_and_resync|mdadm resync] | * [https://www.thomas-krenn.com/en/wiki/Mdadm_recovery_and_resync|mdadm resync] | ||
*[https://www.howtoforge.com/replacing_hard_disks_in_a_raid1_array|replace disks RAID1 array] | * [https://www.howtoforge.com/replacing_hard_disks_in_a_raid1_array|replace disks RAID1 array] | ||
* [https://www.storagetutorials.com/how-to-create-partition-raid-linux-unix/|Partitioning examples] | |||
sfdisk can mirror two disks (usually) so that you can rebuild quickly.. | sfdisk can mirror two disks (usually) so that you can rebuild quickly.. | ||
Revision as of 18:12, 30 October 2021
All the damn details of mdadm that you can never remember when a !@#$!#@ drive dies
sfdisk can mirror two disks (usually) so that you can rebuild quickly..
there are ways to do this as a single command with pipes, but it sucks and does not always create the partitions correctly..
safer way: (Assuming sdb is toast)
- sfdisk -d /dev/sda > sda.out
- sfdisk /dev/sdb < sda.out
- sfdisk -l