Replacing failed DS920+ and rebuilding whole system

[ColBat]

I have a DS920+ no longer under warranty that Bay #1 has failed. I’ve done a lot of testing and received a lot of advice on this failure and am sure it is the bay that has failed not the HD in it. I have 5 16TB Ironwolf 3.5” drives that I have used. I believe 1 may have been fried by the bay failure though I am still checking on that and I still trying to test the 2nd 16TB that was a replace that didn’t work (I believe because of the failed bay, but I still checking that too). I also have 2 8TB Ironwolf drive I ran on a DS220+. What I’d like to do is start all over again, by getting a 6 bay synology, wiping the the existing drives (they are Btrfs formatted) and getting rid of the Raid10 I originally put on the system and go to SHR2. I want to use the 3 good 16TB and the 2 8TB drives plus get a new Ironwolf 16 TB drive. BTW, I use the synology as only a Plex media server for movies, TV shows, and want to add all my music and pictures. Everything is already backed up on external hard drives so I’m not worried about losing anything initially.

So my questions are: what do I do to prepare the 3 16TB and 2 8TB drives for use in a new Synology with SHR2 instead of Raid 10 (wipe them or is there some other less destructive way to prepare them?)? If I have to wipe the existing drives how do I do that (they are Btrfs)? I work on a Windows box and have little experience with linux OS. After I get the existing hard drives ready, I assume I will just start from stretch in setting up the Synology and installing Plex. Am I right on this?

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[Coop777]

Is there a specific reason you are going to reconfigure with SHR-2 instead of SHR-1? I can understand you might be a little gun shy having experienced a bay failure, but that is not a common thing that happens. SHR-1 with an external backup of the data should be more than sufficient.

 

[Telos]

SHR-1 with an external backup of the data should be more than sufficient.

Coop is right! Particularly for a 4-drive (or 6-bay) NAS. SHR2 is best used for significantly larger arrays.

It's strikes me odd when double redundancy is a "solution" for an everyday NAS, when nearly all our PCs operate with zero redundancy drives.

 

[ColBat]

Telos, Coop777, Birdy: thanks for your insights. In the last couple of days I've been leaning towards SHR-1 and you're comments have made me decide in favor of SHR-1. The more I thought about it and researched, the more SHR-2 seems to be overkill. I just received my new DS1621+ and will be spending the next few days getting it ready and putting in a UPS for it. The one 16TB drive that seemed bricked I was finally able to get it wiped and reformatted. I want to run a couple of tests with it the second 16TB that acted a little funky before I actually start building the DS1621+ and loading media on it.

 

[Coop777]

Have you hooked up the suspect 16TB drive to a MAC or PC and run vendor drive diagnostics as a second check?

 

[ColBat]

Hi Coop777. Yes. The drive is a Seagate Ironwolf 16TB drive. I ran Seagate SeaTools and Seagate DiscWizard programs on it. The tools had problems recognizing it because the drive was formatted Btrfs. I then followed Birdy and Telos's instructions to use Disk Management on it. Disk Management had trouble but finally was able to see the hard drive and I was able to reformat it to exFAT.

Hi Coop777. Yes. The drive is a Seagate Ironwolf 16TB drive. I ran Seagate SeaTools and Seagate DiscWizard programs on it. The tools had problems recognizing it because the drive was formatted Btrfs. I then followed Birdy and Telos's instructions to use Disk Management on it. Disk Management had trouble but finally was able to see the hard drive and I was able to reformat it to exFAT.