HHD reading errors

[PincoPalla]

Hi everyone, I'm running DSM918 + with loader 104b, there are 4 hhd, 3x4Tb wd EFRX and 1 wd 2Tb green, when I make the server do some "heavy work" like updating Plex libraries or similar I always get many alarm messages: bad sector was found on disk 4 (wd 2Tb) an I / O error has occurred on drive 4 in Synology the disk "should" be fine, it was removed from a synology where it worked fine and put here (which does not mean it can't have deteriorated now) I bought a 4Tb EFRX which will arrive in 10/15 days to replace the wd 2Tb green, I read in some threads that version 918 + / 104b has problems with reading discs, is that correct ?? Is there anything you can do? At this point I am also afraid to back up the system because at some point everything just crashes, I had in mind to also take 2 NVMe as a cache but at this point I wait because if I have to change DSM with 3617+ that does not support them . Anyone have information ?? Thank you

[flyride]

You have a failing drive.  You need to replace it, and have a backup.

 

7 hours ago, PincoPalla said:

I am also afraid to back up the system because at some point everything just crashes

 

Then by your logic your data is lost already.  You must have a backup.

 

7 hours ago, PincoPalla said:

I read in some threads that version 918 + / 104b has problems with reading discs, is that correct ??

 

No.

 

7 hours ago, PincoPalla said:

I had in mind to also take 2 NVMe as a cache but at this point I wait because if I have to change DSM with 3617+ that does not support them .

 

Don't make changes to your system until it is stable.  I don't personally recommend a write cache using SSD at all, with modest SOHO-type workloads, it is of little benefit and you can get more value for adding RAM to your system instead.

 

What is causing you to want to change to DS3617xs?  You would need a good reason to do that if you have a working system (those reasons exist but might not apply to you).

Edited April 13, 2021 by flyride

[PincoPalla]

Hi Flyride thanks for the answer, yes as I wrote I bought a new HHD same model of the other 3 specific for NAS (wd EFRX), in my opinion it gives me error because the wd greens are not specific for NAS (I think they are AMR), for the back up the situation is not so serious I have an old backup of about 30 days at the most I lose some movies that I have downloaded in the meantime, so I take it easy, even for the RAM I was trying to expand it (I already have 32Gb I wanted to bring it at 64, in any case even now the DSM with 2 virtualized operating systems always open never goes beyond 20/25%), I'm waiting for the new HHD in order to open the nas only once. The type of DSM I would have had to change if there were problems reading discs with the 918, I do not remember where I read it but I seemed to have read about disc reading problems, if you tell me that everything is okay there is no I really think about changing. Thanks for the reply, I have a clearer idea

[IG-88]

55 minutes ago, PincoPalla said:

I do not remember where I read it but I seemed to have read about disc reading problems, if you tell me that everything is okay there is no I really think about changing.

maybe this one?

https://xpenology.com/forum/topic/28321-driver-extension-jun-103b104b-for-dsm623-for-918-3615xs-3617xs/

but thats specific for scsi/sas controller when using disk hibernation on 918+

the newly compiled driver (no smart, no sn) does not have this problem but makes disk handling more or less impossible as you cant identify disks properly in the gui and cant user smart data to determine the disks condition

[PincoPalla]

Ehhhh right here, thanks IG-88 😀😀, however I don't use server hibernation / suspend, my server is always on because it acts as my mail server so everything should work fine 🙏🙏

[IG-88]

1 hour ago, PincoPalla said:

however I don't use server hibernation / suspend,

beside this with just 4 disks you will use onboard sata for sure (ahci as driver), no problems with this when using disk hibernation