Treatment of a bad sector on a disk in a raid. Is it possible?

G

George N2015-10-23 20:18:03

linux

George N, 2015-10-23 20:18:03

There are several bad sectors on one of the two disks combined in raid 1 (mirror). Software raid.
There is no way to change the disk right now.
I want to try to "cure" by rewriting the sector with the command:
hdparm --write-sector 33333333 /dev/sdb
If it were just a disk, I would try it, but what happens if there is a raid? Nothing bad will happen? And then the server is not close at all.

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jcmvbkbc, 2015-10-23
@georgas

I want to try to "cure" by rewriting the sector with the command:
hdparm --write-sector 33333333 /dev/sdb

Are you sure you read man hdparm? This command will overwrite the sector with zeros.
You can take a bad disk out of the raid and bring it back in, which will overwrite all sectors on this disk.