SMART error (CurrentPendingSector) detected on host: server

spezialtrick · 20. November 2013

Hey Guys,

i got this mail from my NAS today:

Zitat

This email was generated by the smartd daemon running on:

host name: server
DNS domain: fritz.box
NIS domain: (none)

The following warning/error was logged by the smartd daemon:

Device: /dev/disk/by-id/wwn-0x50024e92013373d4 [SAT], 1 Currently unreadable (pending) sectors

For details see host's SYSLOG (default: /var/log/syslog).

You can also use the smartctl utility for further investigation.
No additional email messages about this problem will be sent.

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What does it mean? What i have to do now?

davidh2k · 20. November 2013

Buy a new drive. Copy Data from the old one to the new one. Throw the old one into the trash. <- ASAP

Greetings
David

spezialtrick · 20. November 2013

One answer that I would not have expected. -.- What is this error and how does it happen? Is it my system drive or my data drive?

I have a backup of the data on another identical hard drive. Should initially suffice as a backup, right?

What a drive would you recommend? What do you think of the WD 3TB RED?
Can it use the spin-down options?

davidh2k · 20. November 2013

Erm, let me look up how to identify the drive (need to check how to identify drive by id). Maybe give me the output of "blkid" from the commandline, thx.

Backup on a second drive should be fine for the moment. However just as a suggestion and if you like your data. What would you do if your get some overwaltage, fire or flooding? Then even your backup in your PC could be damaged. Maybe thing about an external backup. But thats just a suggestion, with an internal Backup you show that you care more than the average person about your data.

I would totally recommend the WD RED, I personally have the 3TB edition, they are so damn quiet. Depending on how much data you would plan to store I would suggest the 4TB version. Can't tell about the spindown options, I simply don't use them and also prevent my drives from spinning down because I grab smart every 3 minutes (temp). Also the WD RED are designed to be used as 24/7 drives. No need to spindown them, at least not if you want to save electricity.

Edit: Ah, dev by id should be your serialnumber. So look for that Serialnumber in the Webinterface of OMV in the hard drive section, the OS drive is shown unter physical drives too.

Greetings
David

spezialtrick · 20. November 2013

Thank you!

That's the output:

Code

root@192.168.178.2's password: 
root@server:~# blkid
/dev/sdb1: LABEL="TimeMachine" UUID="7d257ec6-663e-4f38-9e20-3421eb1da779" TYPE="ext4" 
/dev/sda1: UUID="8d252bb8-1115-4241-894d-beca92a9b81d" TYPE="ext4" 
/dev/sda5: UUID="1ec07ae5-96be-4cb5-ae7f-e75f86b0c970" TYPE="swap" 
root@server:~#

Oh the Backup drive isn't inside the OMV. It is an external drive, also 1.5 TB SAMSUNG HD154UI, which ins't connected the whole time to OMV.

I need to figure out how the spin down options works to save electricity. Isn't there an option in SMART to prevent the drive to spin up, if it's in standby?

Could the error occur, because the drive often spin up?

davidh2k · 20. November 2013

Yes, parking the heads often is the worst thing you can do to shorten the life span of your drives. Way worse than running cheap desktop drives 24/7. As I said, you may wait if someone comments on the spindown options of the REDs or look it up on google, I simply don't use it, I rather shutdown the whole system after I no longer use it. But inbetween I don't spindown....

As I said, should look in the webinterface for "wwn-0x50024e92013373d4" as the serial number as one of your drives.

Greetings
David

spezialtrick · 20. November 2013

Sorry, but i didn't your edit. Unfortunately the serial number don't fit together.

Is it possible that "wwn-0x50024e92013373d4" is the serial of the backup drive?

davidh2k · 20. November 2013

Erm, this could be possible, would you mind to check it?

Greetings
David

spezialtrick · 20. November 2013

Ok, just checked it. It's not the serial we are looking for.

FAFFFFF0FDF1FFF1BF901638

davidh2k · 20. November 2013

Give me the output of the following command:

Code

ls -la /dev/disk/by-id/wwn-0x50024e92013373d4

Greetings
David

spezialtrick · 20. November 2013

Here it is:

Code

root@192.168.178.2's password: 
root@server:~# ls -la /dev/disk/by-id/wwn-0x50024e92013373d4
lrwxrwxrwx 1 root root 9 20. Nov 17:30 /dev/disk/by-id/wwn-0x50024e92013373d4 -> ../../sdb
root@server:~#

Seems that it is my data drive, right?

davidh2k · 20. November 2013

If you didn't reboot and your UUID <-> /dev/device mapping is still the same then it should be

Zitat

/dev/sdb1: LABEL="TimeMachine" UUID="7d257ec6-663e-4f38-9e20-3421eb1da779" TYPE="ext4"

Greetings
David

spezialtrick · 20. November 2013

Thank you very much for the perfect support!

Looking for a new hard drive tonight. -.-

davidh2k · 20. November 2013

Glad I could help you

Greetings
David

piet · 20. Januar 2014

Excellent.

Thank for the tip.

Regard.

patrick168 · 14. Januar 2015

I got similar Current Pending Sector email and would like to replace my problem drive. Can someone advise what the best practice is to replace a data drive, my system has no RAID. Should it be like this?

1. Copy the data to the new drive
2. Uninstall samba, shared folders of problem drive
3. Reinstall samba, shared folders on new drive

Thanks.

patrick168 · 16. Januar 2015

Any one can help.

Should I do the three steps above? Or there would be shortcut that I can do by changing UUID?

Thanks.

davidh2k · 16. Januar 2015

Do like you suggested yourself above. Use rsync to copy them over.

Greetings
David

gprsnik · 24. Juni 2015

every day i receiving a message like this:

Spoiler anzeigen

notting changes day to day - 1 pending + 1 offline, smart messaging is disabled, monitoring is active = once a week

how to fix it?

davidh2k · 25. Juni 2015

It resends it because there is still one pedning, at least that would be my guess. Maybe @votdev can answer better.

Greetings
David

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