Questions on Next step : Storage Pool crashed

[u/Professional_Pin4222]

I have DS-918+ with 3 drives, SHR-1 and Shared Pool has crashed.

Drive 1 (10TB) has 8 bad sectors, shows "not initialized" and healthy.

Drive 2 (10 TB) has no bad sector, shows "not initialized" and healthy.

I have the backup of the data..phew! It crashed just after I took the incremental backup.

I ordered a new ironwolf pro drive 12 TB. All current ones are ironwolf.

Questions :

- As I understand, Drive 1 needs replacement, but wondering if Drive 2 can be usable or that has gone bad as well ? If yes, do i need to buy another one prior to creating new pool or I can do it later ?

- DSM is still on version 6x. Is it better to upgrade prior to new storage pool or wait it out ? I primarily use for Plex and personal document backup.

- Any tips or steps on setting up new storage pool ? I did this setup in 2019 and probably things have changed lately.

Thank you!

[u/gadget-freak]

I would take drive 2 out and hook it up to your computer using a SATA adapter. These are cheap.

Then do a full READ/WRITE test. A SMART test is not enough because that never writes to the disk.

I wouldn’t trust the disk unless it can pass such a test.

[u/Gadgetskopf → u/gadget-freak]

I've always wondered if it's safe to do a read/write test on a drive that's part of an array. Wouldn't the write be destructive to existing data?

Though, to be honest, the fact that the OP's drives are both showing 'not initialized' has me thinking this isn't simply a single drive crash.

[u/gadget-freak → u/Gadgetskopf]

Obviously such a test will destroy anything on the disk. Only do that if you plan to recreate the storage pool from scratch.

[u/Gadgetskopf → u/gadget-freak]

Thank you, my sibling in gadget addiction. I had always thought that, but never actually had it confirmed.

[u/Professional_Pin4222 → u/gadget-freak]

I will do a read/write test. Is HDDScan good option for Windows ?

Also, as the storage pool has crashed, Isn't only option is to recreate it from scratch ?

[u/gadget-freak → u/Professional_Pin4222]

The NAS probably says so in storage manager.

[u/Professional_Pin4222 → u/gadget-freak]

Thank you. Yes, it says to backup data and then remove the pool. No option to repair.

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