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Products => Storage => : Ringfinger May 09, 2018, 08:03:23 PM

: Error On Raid, Not Sure What To Do
: Ringfinger May 09, 2018, 08:03:23 PM
I got this e-mail during my normal daily check:

DISK Error Notification

HDD error occurred
Disk(s) the error occurred:"Disk 1"


(sda) WRITE sector:14008328 count:1
Disk writing error
Some data may not be recoverable.
Immediate change of disk is recommended.


[LinkStationInformation]
 LinkStationName: LS-WVL806 (LS-WVL)


I have a RAID 1 Array.  Two disks that mirror each other.  Advice on how possibly I can fix that error somehow?
: Re: Error On Raid, Not Sure What To Do
: davo May 10, 2018, 01:35:21 AM
Replace disk1 and rebuild the RAID.
: Re: Error On Raid, Not Sure What To Do
: oxygen8 May 10, 2018, 03:28:16 AM
and be aware of the bug with WD Green drives

:
  9 Power_On_Hours          0x0032   088   088   000    Old_age   Always       -       5091
193 Load_Cycle_Count        0x0032   172   172   000    Old_age   Always       -       167465

from
http://forum.nas-hilfe.de/festplatten-und-ssd-laufwerke/western-digital-in-einer-ls-xhl-load-cycle-count-t1435.html
: Re: Error On Raid, Not Sure What To Do
: Ringfinger May 10, 2018, 05:54:43 AM
I canít read the link as it is in German. Can you help explain?  Or basically donít get a WD green drive to be safe?

As far as replacing the drive, which one is disk 1?  I assume I pull it out and put an identical brand size and model or will any 1 TB drive work?  Are there special jumpers or anything to set on it?  Once I put it in I just go to the Drive through the interface and then go to mainternece click array 1 and rebuild?  Will that erase data from disk 2 or just make a mirror copy?  I donít want to lose my data of course. 

 Any suggestions on a replacement try for my model?  Iím just really nervous because I donít wanna lose my data on the good drive so I would like to do it correctly
: Re: Error On Raid, Not Sure What To Do
: Ringfinger May 10, 2018, 06:04:46 AM
 And do I have to format the new drive and what are the exact steps Iím just so nervous if someone could help I would really appreciate it
: Re: Error On Raid, Not Sure What To Do
: davo May 10, 2018, 07:19:52 AM
As far as replacing the drive, which one is disk 1?

The one on the left labelled "1".

I assume I pull it out and put an identical brand size and model or will any 1 TB drive work? 

Any disk that has the same specs (size, capacity, RPM and cache) would be fine.

Are there special jumpers or anything to set on it? 

No, they are SATA disks, jumpers are only on the older (not used anymore) IDE disks.

Once I put it in I just go to the Drive through the interface and then go to mainternece click array 1 and rebuild?

Reboot, go to admin page, System -> Storage -> array1 -> Select the new disk -> Rebuild RAID.

 Any suggestions on a replacement try for my model? 

Any standard disk of the same size should be fine, make sure you have a backup (just incase) before going through it.
: Re: Error On Raid, Not Sure What To Do
: Ringfinger May 10, 2018, 08:39:35 AM
I looked at the drive.  It is green label 5400RPM 64MB cache 1 TB.  Can I even buy that slow anymore?  Is green the issue mentioned prior?  Can I mix it with a 7200?

1 sector bad, is that something that may fix itself or just look to get worse?

8 Years old or so, my intuition is to replace both but that adds new complexity getting data onto the disks if I replace both.  I could replace entire NAS or am I overreacting?
: Re: Error On Raid, Not Sure What To Do
: Ringfinger May 10, 2018, 09:53:22 AM
Looks like this is a match:

https://www.newegg.com/Product/Product.aspx?Item=N82E16822236342&cm_re=WD_drive-_-22-236-342-_-Product



Although this is literally what is in it now but this one is refurbished:

https://www.newegg.com/Product/Product.aspx?Item=9SIAAEE4T16607
: Re: Error On Raid, Not Sure What To Do
: davo May 10, 2018, 10:28:01 AM
The WD red should work fine, i personally wouldn't buy a refurbished disk.
: Re: Error On Raid, Not Sure What To Do
: oxygen8 May 10, 2018, 11:00:48 AM
create a backup immediately!
: Re: Error On Raid, Not Sure What To Do
: Ringfinger May 10, 2018, 11:06:09 AM
The WD red should work fine, i personally wouldn't buy a refurbished disk.

Okay, thanks for the input.  In your opinion, is it worth replacing the drive since it is only one sector. (I know, that could be a start to more...).  Also, should I replace the bad one, rebuild array, then replace the other and rebuild so I have 2 new drives?  Should I just get an all new NAS?

I just want to do what would be best and I respect your guidance and opinion.
: Re: Error On Raid, Not Sure What To Do
: oxygen8 May 10, 2018, 11:44:52 AM
the nas is ok

check on both drives the load cycle count

if you are over 300000 replace both drives
: Re: Error On Raid, Not Sure What To Do
: Ringfinger May 10, 2018, 11:54:44 AM
Hmm, how can I discern that?
: Re: Error On Raid, Not Sure What To Do
: oxygen8 May 10, 2018, 11:59:15 AM
https://translate.google.com/translate?sl=de&tl=en&js=y&prev=_t&hl=de&ie=UTF-8&u=http%3A%2F%2Fforum.nas-hilfe.de%2Ffestplatten-und-ssd-laufwerke%2Fwestern-digital-in-einer-ls-xhl-load-cycle-count-t1435.html&edit-text=
: Re: Error On Raid, Not Sure What To Do
: Ringfinger May 10, 2018, 12:12:27 PM
I appreciate that but I am kind of lost what exactly I am looking at or doing.
: Re: Error On Raid, Not Sure What To Do
: oxygen8 May 10, 2018, 12:30:22 PM
read the last post
http://forums.buffalotech.com/index.php?topic=25082.0
: Re: Error On Raid, Not Sure What To Do
: Ringfinger May 10, 2018, 12:53:49 PM
Okay, thanks!  I would assume if there are mirrors of each other in the same enclosure they both have had the same cycles.  Safest to replace both and move on is my guess.
: Re: Error On Raid, Not Sure What To Do
: Ringfinger May 10, 2018, 12:59:26 PM
Just to be safe.  That's $120 for peace of mind, eh?
: Re: Error On Raid, Not Sure What To Do
: davo May 11, 2018, 02:51:47 AM
Unless there is an error on the other disk i wouldn't replace it, just make sure you have a backup in place.
: Re: Error On Raid, Not Sure What To Do
: Ringfinger May 11, 2018, 07:24:15 AM
I get you.  So, one bad sector on the one drive is really not that bad anyhow?  I am replacing it but just asking. 

What would constitute a good back-up?  Buy a USB drive that plugs into the NAS and backs up weekly?  Just want to make sure I employ the right strategy.
: Re: Error On Raid, Not Sure What To Do
: Ringfinger May 11, 2018, 09:07:09 AM
Like something like this that I can plug into my NAS and have it back-up weekly to it?

https://www.newegg.com/Product/Product.aspx?Item=9SIA2F83426457&cm_re=usb_backup-_-22-165-440-_-Product
: Re: Error On Raid, Not Sure What To Do
: oxygen8 May 11, 2018, 10:56:43 AM
You need a good cooling
I prefer this casing:
https://www.wdc.com/de-de/products/wd-recertified/wd-elements-desktop.html

with bad cooling you will have this:

(http://forum.nas-hilfe.de/galerie/image.php?album_id=76&image_id=366)


from
http://forum.nas-hilfe.de/festplatten-und-ssd-laufwerke/was-passiert-wenn-eine-festplatte-ueberhitzt-t2018.html
: Re: Error On Raid, Not Sure What To Do
: Ringfinger May 11, 2018, 01:19:06 PM
I get you.  But conceptually that is what I need to do to have a good back-up?
: Re: Error On Raid, Not Sure What To Do
: davo May 12, 2018, 04:43:27 AM
I get you.  But conceptually that is what I need to do to have a good back-up?

Correct.
: Re: Error On Raid, Not Sure What To Do
: Ringfinger May 13, 2018, 01:29:18 PM
Thank you so much.  Rebuilding the array now on the new drive.
: Re: Error On Raid, Not Sure What To Do
: Ringfinger December 04, 2018, 06:06:57 PM
Disk 2 just gave me the same error.  Time to replace that one now.
: Re: Error On Raid, Not Sure What To Do
: Coys55 December 07, 2018, 06:12:28 AM
create a backup immediately!

Exactly. RAID is not a backup and it is always possible that for any one of a catalogue of reasons (e.g. virus, RAID controller corruption, both drives failing, theft, fire, stupidity - need I go on?) you can lose the data. ALWAYS take regular backups and store the drive in a safe place, preferably offsite.

And most importantly for now, take a backup before attempting to replace the failed drive, even if it's just your most important data to a desktop or laptop.

Edit: Oops, I've just noticed that the original drive failure was in May so my warnings were a I'm a bit late for that one. My backup comments are no less relevant now though...