CS407 keeps crashing disk 1.

[Hobbz]

Hi

I just bought a CS407 witch is loaded with 4 WD WD10EACS 1TB disks running raid 5, a great product no doubt, but it is giving me a little grief.
Sometime the system hangs and i can see that the Disk 1 LED is flashing while the others are constant, sometimes it resumes after a couple of minutes, other times it crashes the disk, starts beeping and tells me that Volume 1 is degraded, i use the repair function and it's up and running again... this just dosent seem like a viable situation ... Smart test on the disk says it's okay ...

Any ideas ?

Is it posible to swap Disk 1 and 2 around without loosing data ?

Thanks

[HarryPotter]

No, you cant just swap disk 1 and disk 2 ( you mean replace disk 1 by disk2 and disk 2 by disk 1?).

But you can replace disk 1 by a new one, repair the RAID5, and then replace disk 2 by a new one (or by disk 1) and repair RAID5 again.

[Hobbz]

Bugger

Well now i have removed Disk 1 and is in the process of testing and zeroing the disk.
Then i will reinstall it and see if the problem persists.

[Pegasus]

I am having a similar problem. I got a report that the RAID5 volume had degraded, and that Disk1 had crashed.

I had a spare drive on hand so removed Disk1 and put in the replacement.

I chose the Repair option for the Volume and ~12 hours later I get the same warning.

I rebooted the CubeStation again (chosing Restart from the web interface did not seem to work so I powered down).

I chose Repair Volume again and ~12 hours later the same error.

The original drive that was reported as crashed has been wiped and scanned for errors. None were found.

Any ideas/suggestions?

[Hobbz]

After some advice from support i swapped the SATA cable for Disk 1, for a new one ... this seems to have worked .... it has been running for about 5 days now without incident ... it's worth a shot ....

[Pegasus]

After some advice from support i swapped the SATA cable for Disk 1, for a new one ... this seems to have worked .... it has been running for about 5 days now without incident ... it's worth a shot ....

Did you find a SATA cable of the right length? If so from where?

[Hobbz]

No not yet , but i am looking for one.
I am currently using one i had laying around ...

[Retiarius]

Faulty SATA cable?! I'm having a very similar issue, Disk 1 failed, replaced disk and again failed, Western Digital's diagnostic tools reported no problems with either disk. I've got a few spare SATA cables so I'll also give this ago in my 407.

[Pegasus]

Faulty SATA cable is interesting given that Synology support have diagnosed my problem as a faulty SATA controller (from the log error messages). I would imagine that a faulty SATA cable could possibly cause problems that appear to be caused by a faulty SATA controller (and vice versa).

[Retiarius]

Replaced SATA cable and NAS is running ok for 12 plus hours now with the same disk that crashed twice (last crash occured about 20 minutes into a repair), this time rebuild completed without issue. Fingers crossed.

[meo]

I have 4 Seagate ST3500641AS 500GB Hard Drives and Disk 1 has failed 4 times now. I have replaced the drive each time and I even sent one of the drives back to Seagate to be repaired and it even crashed again when I put back in my system. It's always Disk 1 that crashes. I will try replacing the SATA cable and see if I continue to have issues but my system was running for many months until problem started.

[Retiarius]

Just lost HDD 4 now.... Same errors in the log, repair failed.... I'll swap the SATA cable on drive 4 also. This is getting beyond a joke, worst money i ever spent at the moment, it's down more than it's up.

[Retiarius]

Again replacement cable has resolved the issue. They either need to not include the SATA cables or use better quality cables....

[Pegasus]

My status is waiting on a set of replacement cables from Synology.

I did put in a replacement SATA cable (plundered from a desktop machine) but that wasn't a smashing success. Instead of having the RAID5 array degraded but accessible, now I cannot access the CS at all. Not even the web interface.

I am with you Retiarius. This has been a very frustrating experience and I have been looking at alternative NAS solutions with interest.

I think the CS407 is a product with a great feature set, which fit into my home network/entertainment plans very nicely, but mine has been spending far too much time as a highly featured and expensive paperweight.

[lookatbowen]

Same problem as above (disk 1 always which normally is Volume 1).

Where are you getting your replacement cables from? How do I go about getting some replacements?

Mike