r710 from perc6i to h200 - preserve data

[scubieman]

Trying to upgrade from raid controller to sata controller AKA from per6i to h200.

 

I have been using this server with perc6i for about a year now. So i want to be able to preserve the data if possible.

 

As of now most if not all is backed up. At least important things are.

 

H200 needs to go into PCIE slot not the internal storage slot from what I hear. Do i just rebuild the array with the drives? Do they have to be same order? 

[JonathanM]

If you can, I would only move 1 drive to the new controller, do a new config with trust parity checked and see if it mounts ok. I suspect it may not, and will need to be rebuilt to move the partition to the correct location.

 

This migration is a complicated procedure if the RAID controller has messed with the basic layout of the drives, hopefully the RAID board passed the drive through unmolested, in which case only the drive ID will likely change.

 

Drive order doesn't matter if using parity1, it does matter if using parity2, whether or not you only have 1 parity drive is irrelevant.

 

Before you start playing, be absolutely sure you have a current list of which serial number drive was in each logical slot.

 

@johnnie.black has helped with these types of transitions before, he may know offhand whether a perc6i is going to be a pain to migrate.

[scubieman]

I currently do have only 1 parity. I have 3 disk in array. 2 unassigned.

 

I do have 2 cache drives in raid 1(mirror)

1 parity

3 array

2 unassigned

total of 8 hard drives

[JorgeB]

You'll likely get "unmountable: unsupported partition layout" on all data disks, solution it to rebuild one disk at a time so Unraid recreates the partition, you can confirm by unassigning one disk and checking that the emulated disk mounts correctly before rebuilding on top.

 

[scubieman]

So i will need to redo all my data and setup?

[JorgeB]

No if the above works, but you'll need to rebuild every data disk.

[scubieman]

Sorry. I dont 100% understand still.

 

You saying partition could be wrong. I may just need to "mount" drive?

 

Or you saying use both old raid controller and new one at same time?

[JorgeB]

14 minutes ago, scubieman said:

I may just need to "mount" drive?

No, you'll likely need to have Unraid recreate the partitions, but you just need the new controller.

[scubieman]

1 minute ago, johnnie.black said:

No, you'll likely need to have Unraid recreate the partitions, but you just need the new controller.

Since the name of the drives will be different. So I will need to erase the current config and try to get the drive locations right?

 

Am i getting this at all?

[JorgeB]

3 minutes ago, scubieman said:

Since the name of the drives will be different.

Likely, and in that case you need to a new config and trust parity, make sure parity drive is assigned to the parity slot.

[scubieman]

2 minutes ago, johnnie.black said:

Likely, and in that case you need to a new config and trust parity, make sure parity drive is assigned to the parity slot.

Awesome. Thanks. I have at least been keeping track of what drive is where ETC.