simple RAID1 setup with bad sectors

[teerose67]

Hi all! I love this site, although I only understand about 1/10th of what you guys talk about.

I have a very basic RAID1 setup in a Buffalo LinkStation 421. It has 2- 3Tb drives, and is used for data storage only in a small office environment (2 people). There is no OS on the drive(s).

The LS421 is not showing any error through the LED indicators, but the daily email tells me I have 11 disk errors on Disk 2. I think that means bad sectors, yes?

[HDD Usage Status]
RAID Array 1 Usage Rate : 1008391520 kbytes / 2913320916 kbytes (Usage Rate 35%)

[DISK error status]
Disk1 0
Disk2 11

I've been reading the manuals, browsing web forums, and - frankly - most of this talk is over my head.

I'm looking for simple guidance on 2 questions --

1. Is it possible (or worth it) to do something like CHKDSK to "fix" the errors. My reading says yes, it's possible and may be worth it for the short term, but be prepared to replace the disk anyway. Is that accurate?

2. Is replacing the disk as easy as powering down the NAS, swapping disk2 with a new one, and powering back up?

Thank you for any assistance you will offer.
Tiffany

 

[hang-the-9]

1. no it's not a good idea to keep a failing disk alive though software or re-mapping bad sectors if you like your data. It's like putting duct tape on a brake line leak and waiting till it fully fails to actually replace it. What if the second disk goes bad and this one has issues reading the files?

2. yes it should be, the NAS manual or the online FAQ should have instructions on that.