If one drive dies in a raid1 setup, is DSM and all installed apps still available?

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If one drive dies in a raid1 setup, is DSM and all installed apps still available?

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DS213j
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Longtime ds213j owner and I'm considering moving from a 2 drive setup (basic unprotected) to a 2 drive raid1 basically for the data/setup redundancy so I want to confirm before I go ahead: if one drive dies in a raid1 setup with 2 drives, is my system and all its apps (including 3rd party, synocommunity apps) still available with the remaining working drive? I assume it is but want to confirm before I go through the pain of formatting and setting everything up again.
 
RAID1 is mirrored. If one drive dies, all apps, configs, and files are retained on the healthy drive.
Thanks. I've backed up everything will take the plunge over the weekend.
-- post merged: --

RAID1 is mirrored. If one drive dies, all apps, configs, and files are retained on the healthy drive.
Btw would resetting dsm be enough to start this process? Or do I need to do something else?
 
Btw would resetting dsm be enough to start this process? Or do I need to do something else?

Well... you could run a factory reset (via Control Panel) and start from scratch/backups, or if you're planning to re-use the drives, you can select one of those basic drives (ex.volume1) and convert it to RAID1 using a second drive. Doing that should preserve the stuff you have on that first drive.

Change RAID Type of a Storage Pool
 
Well... you could run a factory reset (via Control Panel) and start from scratch/backups, or if you're planning to re-use the drives, you can select one of those basic drives (ex.volume1) and convert it to RAID1 using a second drive. Doing that should preserve the stuff you have on that first drive.

Change RAID Type of a Storage Pool
I have not seen an option to convert (I'm on dsm5.2), where can I find that? I went to storage manager and couldn't see a way to do it. Both disks are being used right now by dsm.
 
I have not seen an option to convert (I'm on dsm5.2)
That feature is available on v5.2. You should be able to change your basic drive to RAID1 in the presence of an available drive.

OaOD0n0.png
 
Looks like I had to remove the secondary volume before I could change raid types. Cool stuff! I'm waiting on the wizard now since it found some fs errors when I tried to apply the change.
 
Yes. You must have a available drive present to use that feature. Glad to hear you found it.

Unfortunately I keep getting this error ("file system errors were discovered. we recommend running a file system check") when I apply to commit the changes. I've performed the volume checks in the command line following this guide: Synology File System Check and no issue came up. I've formatted the additional drive using the "slow" setting in dsm too hoping it solves any issue. It took hours but I'm still getting the error. Any ideas?

1688823102698.png
 
Edit: nvm, for some reason I assumed the second disk was the one giving me problems, turns out it's the main drive. CLI fs check is fixing the issues now. Hopefully once it's done I can go ahead and create the radi1.
 
I'm unaware that drive formatting is available in DSM (maybe this is a new feature?). When I need a drive formatted, I do that via PC.
I meant when creating a new volume, it offers a "slow" way of doing it when it does more checks for first DSM installation.
 

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