Thanks, I will run Spinrite on the disks.
Simply replacing the failed (!?) disk did not do it. The led goes live
while reconstruction and when the unit starts but turns off after.
FYI, it is one of these:
https://jet.com/product/Teratrend-TowerStor-TS231U-Aluminum-SECC-3.5%22-Black-SATA-IIIIII-USB3.0-and-eSATA/29c6fe790644437992482e4f91cbb39a
As of now, I am thinking to settle with a Synology.
On 30/09/2018 8:01 PM, Nelson Asinowski via mlug wrote:
No experience with that NAS but just the situation of a funky raid.
I have Backuped the whole raid and cleanly shutdown and detached the
drives to run Spinrite on the individual drives.
to make sure they are ok. IF SR reports nothing or limited block
repair then rejoin them. If lots of SR repair replace the drives.
If your light still stays out then I would consider it early signs of
the death of these drives.
On the issue of the NAS I am unsure if you will find something to
diagnose.
If there is some sort Raid error log and you see lots of errors
successfully corrected then
replace the drive. If not and the light is still out then the problem
lies inside the drive.
When drives go slightly bad the internal Error Correction system
activates
and could read the sort if bad sector up to dozens of times before it
returns a good result.
The drive could inform the OS of the soft error but does the OS do
anything with it.
In the end read was successful but was longer than it should have
been. Does the OS even know.
The so called S.M.A.R.T. drive interface is mostly opaque and easily
misinterpreted.
Error reporting is only relevant if the drive is under load. Spinrite
does have a smart monitor
that is displayable while it is scanning the drive (therefore under load).
See these links to interpret the results.
https://www.grc.com/sr/smart.htm
https://www.grc.com/sr/smart-studymode.htm
Its a lot of work to diagnose.
Good luck with this. let us know if anything comes of it.
If you have other questions let me know.
Nelson Asinowski 514-685-6848 [email protected]
On Sunday, September 30, 2018, 3:48:24 p.m. EDT, Aurelian Melinte via
mlug <[email protected]> wrote:
Hi,
I am looking for an external RAID enclosure that has
console/diagnostic/administrative access. I am told ReadyNAS from
Netgear is Linux based and can be logged into and administered. Any
comments about ReadyNAS or any other recommendations?
(I have an external RAID+USB but there is no way to know what is wrong
with it - one of the drive leds does not stay lit. But replication seems
to work. No diagnostics or administration tool so I have no way to know
what is really going on.)
Thanks
---
This email has been checked for viruses by Avast antivirus software.
https://www.avast.com/antivirus
_______________________________________________
mlug mailing list
[email protected] <mailto:[email protected]>
https://listes.koumbit.net/cgi-bin/mailman/listinfo/mlug-listserv.mlug.ca
_______________________________________________
mlug mailing list
[email protected]
https://listes.koumbit.net/cgi-bin/mailman/listinfo/mlug-listserv.mlug.ca
--
_______________________________________________
mlug mailing list
[email protected]
https://listes.koumbit.net/cgi-bin/mailman/listinfo/mlug-listserv.mlug.ca
