Currently unreadable (pending) sectors on hard disk

abourke · 02-05-2020, 12:32 PM

Hi,

I'm running Fedora Server 31.

Getting this error in the logs:

Code:

smartd
Device: /dev/sdb [SAT], 3 Currently unreadable (pending) sectors

Is there any way I can fix this error?

Thanks,
Aubrey

RandomTroll · 02-05-2020, 01:11 PM

Code:

e2fsck

maybe? I have 144 at the moment; e2fsck passes it and doesn't fix them.

abourke · 02-05-2020, 01:32 PM

Thanks,

Just checked and found: "e2fsck is used to check the ext2/ext3/ext4 family of file systems."

And my system is formatted as btrfs

Timothy Miller · 02-05-2020, 01:38 PM

btrfs scrub start [-BdqrRf] [-c ioprio_class -n ioprio_classdata] <path>|<device>
Start a new scrub. If a scrub is already running, the new one fails.

abourke · 02-05-2020, 02:02 PM

Thanks Timothy,

Code:

btrfs scrub start /dev/sdb
ERROR: '/dev/sdb' is not a mounted btrfs device

Which is a different problem. Let me explain:

During install I added both of my drives. And it seemed to install just fine. However, now its complaining that /dev/sda2 ( the first hard disk ) is already mounted at /

Both disks have this custom mount options:

Code:

subvol=root

abourke · 02-05-2020, 02:15 PM

Here's a quick video to explain visually:
https://www.loom.com/share/eb93949eb...9b85ce2288e4bc

abourke · 02-05-2020, 03:33 PM

OK so I managed to get scrub to run on both disks

1 ) /dev/sda2 ( My first disk )

Code:

btrfs scrub start /dev/sda2
scrub started on /dev/sda2, fsid 1c15a3f6-eded-48d2-bf3c-fc4b28ee30f0 (pid=1629)

cat /var/lib/btrfs/scrub.status.1c15a3f6-eded-48d2-bf3c-fc4b28ee30f0 
scrub status:1
1c15a3f6-eded-48d2-bf3c-fc4b28ee30f0:1|data_extents_scrubbed:82284|tree_extents_scrubbed:7010|data_bytes_scrubbed:3981365248|tree_bytes_scrubbed:114851840|read_errors:0|csum_errors:0|verify_errors:0|no_csum:5705|csum_discards:0|super_errors:0|malloc_errors:0|uncorrectable_errors:0|corrected_errors:0|last_physical:6506414080|t_start:1580937104|t_resumed:0|duration:24|canceled:0|finished:1

2 ) /dev/sdb1 ( My second disk )

Code:

btrfs scrub start /dev/sdb1
scrub started on /dev/sdb1, fsid 1c15a3f6-eded-48d2-bf3c-fc4b28ee30f0 (pid=1674)

cat /var/lib/btrfs/scrub.status.1c15a3f6-eded-48d2-bf3c-fc4b28ee30f0 
scrub status:1
1c15a3f6-eded-48d2-bf3c-fc4b28ee30f0:2|data_extents_scrubbed:82315|tree_extents_scrubbed:7009|data_bytes_scrubbed:3981570048|tree_bytes_scrubbed:114835456|read_errors:0|csum_errors:0|verify_errors:0|no_csum:5764|csum_discards:0|super_errors:0|malloc_errors:0|uncorrectable_errors:0|corrected_errors:0|last_physical:6518996992|t_start:1580937982|t_resumed:0|duration:30|canceled:0|finished:1

RandomTroll · 02-07-2020, 04:19 PM

Quote:

Originally Posted by abourke

my system is formatted as btrfs

That's very different: never mind.