HDD & RAID Checkers

[rfbjr]

Background:
F2-223 and F4-424 in use
F4-223 now empty not in use

Ok I have F2-223 which has two 8TB (RAID 1) --> will be going to my old F4-223

F4-424 Pro currently has four 8TB (RAID 5)

I want to take two 8TB from 424 and install them in the F4-223 so I can end up with RAID 5 **I know the F4-223 will need the entire RAID rebuilt
**Will take the two drives from the F2-223 and install then in the F4-223 and bring it up, should come up as RAID 1 as it was in the F2-223.

I will then replace the now empty HDD slots on the 424 with 16TB or 20TB so keeping the RAID 5. Eventually replacing the remaining 8TB's with again 16/20TB drives.

So question one is on the 424 do I just shut it down and swap out one 8TB for the 16/20TB and rebuild the array or just do both at once? take out two 8TB's drives and replace them both with the larger drive and rebuild once? I would think the later.

Question two on the F4-223, bring it up first with the two 8TB drives as is, so it comes up as RAID 1 then add one or both 8TB drives and then convert to RAID 5? Is that possible?

[TMzethar]

For the first question, to replace small HDD with larger HDD on RAID5, please refer to this:
viewtopic.php?t=1543

For the second question, to change your two HDDs RAID1 to RAID5 with a new joined HDD, please refer to this:
viewtopic.php?t=1544

In either case, you can only perform an operation on one HDD at a time.

[rfbjr]

So far so good on both. F4-424 as two 20TB and two 8TB (remaining 20TB delivering today). I migrated the system disk from HD3 (8tb) to HD1(20tb) and the same for HD4 to HD2. Deciding now on the 424 to go to TRAID+ instead of RAID 5.

The 223 now has 8 TB and is rebuilding after the 4th HDD was added. Last on that box will be expanding the storage pool to max size.

[rfbjr]

Ok new wrinkle, IronWolf Pro 20TB are out of stock for the moment.
My new question is if I convert the RAID 5 to TRAID+ (so two 20TB and two 8TB) will I better utilize the 20TB drives than sticking with RAID 5. If remember correctly right now only 8TB is being used on the 20TB drives.

[rfbjr]

It doesn't look I can convert from RAID 5 to TRAID+. HDD layout is presently two 20TB and two 8TB drives.

Once I do get to swap out the two 8TB for 20TB, will I then have the ability to convert from RAID 5 to TRAID+?
If I can't do I need to wipe all drives (data is backed up) if I want to build it out as TRAID+.
If I do need a do over, what are the steps?

[TMzethar]

To convert RAID5 to TRAID+, you can only choose to rebuild. After backing up the data, please delete the corresponding volume and storage pool, then create a storage pool of TRAID+ type, and based on it, create a volume and a shared folder based on the volume.

[rfbjr]

Thank you. I'll pick a different weekend when we don't have a nor'easter storm coming and don't need to test my UPS.