I'm wondering what the best way for me to migrate to v4.7 would be.  My current setup looks like this :-

 

 

I have 1 drive with a HPA (disk3) and 1 advanced format drive which I would like to re-align / fix dodgy firmware (disk7)

 

I have 2x new 2TB WD EARS drives spare.

 

My current plan is this:-

 

1) Parity Check

2) Remove HPA from disk3 and rebuild (same disk)

3) Upgrade to 4.7, set "Default partition format" to "MBR: 4K-aligned"

4) Copy disk7 contents to new disk12

5) Unassign disk7

6) Sort out faulty Samsung firmware and re-enable write cache

7) Reassign disk7 (as new disk)

8 ) Add new disk13

 

Anyone see any problems?   I'll be pre-clearing the new drives in a test box before I start.

 

TIA for any insight anyone might have

 

I'm wondering what the best way for me to migrate to v4.7 would be.  My current setup looks like this :-

 

 

I have 1 drive with a HPA (disk3) and 1 advanced format drive which I would like to re-align / fix dodgy firmware (disk7)

 

I have 2x new 2TB WD EARS drives spare.

 

My current plan is this:-

 

1) Parity Check

2) Remove HPA from disk3 and rebuild (same disk)

 

2.5) Parity check (to make sure rebuild worked.)

 

3) Upgrade to 4.7, set "Default partition format" to "MBR: 4K-aligned"

4) Copy disk7 contents to new disk12

 

4.5) Could add a parity check here. (Just to be safe)

5) Unassign disk7

 

6) Sort out faulty Samsung firmware and re-enable write cache

 

6.5) Start array with disk 7 missing then stop again. (so unRAID will forget about the disk and treat it as new.)

7) Reassign disk7 (as new disk)

 

7.5) Rebuild will occur. So run parity check to verify rebuild.

8 ) Add new disk13

 

Anyone see any problems?   I'll be pre-clearing the new drives in a test box before I start.

 

TIA for any insight anyone might have

 

I'd just swap a new WD in for the Seagate in disk7 and let that rebuild. Then, fix the firmware and preclear the Seagate before adding it as disk12. You can use an option in the preclear script to only clear the drive and don't do the pre-read and post-read to save probably about 14 hours. It's an existing disk that has been worked a while so it's burnt in fairly well already.

 

Peter

 

OK,  pretty much how I thought then.  Thanks for the input chaps.

While waiting for my new drives to preclear I happened to be reading the v5b6 thread and read a comment which makes me think I can swap my 1.5tb HPA'd disk with a 4k aligned 2tb disk.  I sort of assumed that I wouldn't be able to do that.  Will that work?  Will the 4k alignment be retained after the data has been rebuilt?

Will the 4k alignment be retained after the data has been rebuilt?

Yes

Good stuff.  Thanks Joe.