Answer by Kai Petzke for RAID-1 to RAID-5 using mdadm
Upgrading an N-disk RAID1 to an N-disk RAID5 is possible, though a bit tedious:Remove all but two disks from the RAID1. To do so, repeatedly execute:mdadm ARRAY --fail DEVICEmdadm ARRAY --remove...
View ArticleAnswer by Simon Richter for RAID-1 to RAID-5 using mdadm
There is no migration path from RAID-1 to RAID-5, except for the special case with two disks, where RAID-1 conveniently is the same as RAID-4 and RAID-5 (because the parity of a single bit is the bit...
View ArticleAnswer by user3198689 for RAID-1 to RAID-5 using mdadm
Actually its fairly straightforward, use the "--grow" option
View ArticleAnswer by maxf for RAID-1 to RAID-5 using mdadm
As per mdadm documentation, you can 'upgrade' a mirror raid (raid1) to a degraded parity raid (raid5) and then add a new disk. Your raid will mostly not survive a single disk failure during rebuild, so...
View ArticleAnswer by Khaled for RAID-1 to RAID-5 using mdadm
It will not work on-the-fly and as simple as this. If you want to change RAID level from 1 to 5, you need to:Backup your data.Prepare your disks to support new RAID level.Configure RAID and...
View ArticleRAID-1 to RAID-5 using mdadm
As per subject.When converting from RAID-1 to RAID-5 using mdadm, why must a RAID 1 array contain 2 devices and not more than 2 devices? I don't understand RAID strong enough to pinpoint a...
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