Re: Migrating from hard drives to SSDs
Mick Ab wrote:
> I am thinking of changing my storage from two 1TB hard drives in a software
> RAID 1 configuration to two M.2 Nvme 1 TB SSDs. The two SSDs would be put
> into a software RAID 1 configuration. Currently each hard drive contains
> both the operating system and user data.
>
> What steps would you recommend to achieve the above result and would those
> steps be the quickest way ?
Let's say that the spinners are sda and sdb, and together they
form md0, 1 and 2
Plug in the two new SSDs. We'll call them nvme0n1 and nvme1n1
though they might be different.
If you need /boot, EFI and/or swap partitions here, make them.
EFI can't be MD raided. boot and swap can.
mdadm create /dev/md10 /dev/nvme0n1p1 /dev/nvme1n1p1 --level=1 --raid-devices=2
and so on for the other RAID pairs -- I'd call them md10, 11 and
12 or so on.
mkfs on your new md devices.
Figure out your bootloader and update it.
Copy over data.
> One of the M.2 slots can operate at PCIe 4.0 and PCIe 3.0, while the other
> slot can only operate at PCIe 3.0. If they are to be in a RAID 1 array, I
> guess that both slots should be operated at PCIe 3.0 speed.
No need. Or you can just buy 2 PCI3 SSDs.
-dsr-
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