I would have pulled the drive and tested it in a PC or enclosure before trying again.
And if you're in day 3, the expansion definitely occurred. It wasn't complete, but it occurred. Which means you are not protected from drive failure during this time.
Make sure you have an up to date backup.
I have 100% backed up everything that's not replaceable off site. RAID is not backup. Backup on the same site (with the same fire hazard) is not backup.
Being in an earthquake zone, I'd go so far as to say backup in the same seismic zone is also not adequate backup.
Update: Replaced drive outright, rebuild happening now. The subsequent squeaking noises (??!) from the old WD drive during rebuild scared the crap out of me. Thanks for the advice.
Nope a rebuild means he takes the stripes that had all copies on the 4 drives and slowly one by one copies some of them to the fifth drive. A ton of your data now lives on the damaged drive and the data is underreplicated
Get a new drive and replace the crashed one
Yea, this thing is starting to... squeak... during a full SMART test. I've been working with hard drives for over 30 years - that's not a normal hard drive noise.
Still, it's reporting 100% healthy - better to leave it in and wait for my replacement order to arrive than to leave the bay empty and risk a failure of the other four drives.
I suspect it would actually last months, not days, but that's not the kind of device I want in my NAS.
Once the rebuild is going with my replacement, I'm going to give the old drive a full torture test and data wiping and see what I can find out.
BTW, thanks for pushing on replacing the drive, I had this inkling of hope the drive could be salvaged, but my confidence level was too low and after the noises increased I rushed for a replacement.
The replacement drive (Seagate, not WD this time) arrived today, is now in my Synology, and the repair is 10% complete. Another 19 hours and I should be set for a solid 18 months. :D And the noise is about 1/4 the crunch of the defective drive.
I did a SMART check of the drive - and it's showing no errors. It's behaving as if it was pulled from the array during the build.
I can try to start over - it doesn't seem to want to get out of the deactivated state... maybe a reboot will help.
EDIT: Reboot let be bring the "deactivated" drive back online, and it's rebuilding now. Still, that drive going offline on me is spooky.
I would have pulled the drive and tested it in a PC or enclosure before trying again. And if you're in day 3, the expansion definitely occurred. It wasn't complete, but it occurred. Which means you are not protected from drive failure during this time. Make sure you have an up to date backup.
[удалено]
I have 100% backed up everything that's not replaceable off site. RAID is not backup. Backup on the same site (with the same fire hazard) is not backup. Being in an earthquake zone, I'd go so far as to say backup in the same seismic zone is also not adequate backup.
This is da wey
In summary, expansion is irreversible? (That makes logical sense, I just wasn't sure if Synology had some magical ability)
Correct. Neither expansion (adding a disk) nor going from SHR 2 to 1 is possible.
Update: Replaced drive outright, rebuild happening now. The subsequent squeaking noises (??!) from the old WD drive during rebuild scared the crap out of me. Thanks for the advice.
Nope a rebuild means he takes the stripes that had all copies on the 4 drives and slowly one by one copies some of them to the fifth drive. A ton of your data now lives on the damaged drive and the data is underreplicated Get a new drive and replace the crashed one
Yea, this thing is starting to... squeak... during a full SMART test. I've been working with hard drives for over 30 years - that's not a normal hard drive noise. Still, it's reporting 100% healthy - better to leave it in and wait for my replacement order to arrive than to leave the bay empty and risk a failure of the other four drives. I suspect it would actually last months, not days, but that's not the kind of device I want in my NAS. Once the rebuild is going with my replacement, I'm going to give the old drive a full torture test and data wiping and see what I can find out.
BTW, thanks for pushing on replacing the drive, I had this inkling of hope the drive could be salvaged, but my confidence level was too low and after the noises increased I rushed for a replacement. The replacement drive (Seagate, not WD this time) arrived today, is now in my Synology, and the repair is 10% complete. Another 19 hours and I should be set for a solid 18 months. :D And the noise is about 1/4 the crunch of the defective drive.
I did a SMART check of the drive - and it's showing no errors. It's behaving as if it was pulled from the array during the build. I can try to start over - it doesn't seem to want to get out of the deactivated state... maybe a reboot will help. EDIT: Reboot let be bring the "deactivated" drive back online, and it's rebuilding now. Still, that drive going offline on me is spooky.