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Author Topic: DNS 323 Raid degrading  (Read 12138 times)

njphones

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DNS 323 Raid degrading
« on: June 10, 2010, 08:54:16 AM »
I have a DNS 323 with two Seagate Barracuda 7200.12 - hard drive - 1 TB - SATA-300 that I bought new.

My Raid1 keeps failing-shows a status of Degraded. I have to continuously reformat and rebuild my dives. I have the latest firmware-1.08. It happens regardless of choosing best performance or most stable. It used to happen every couple of months, now it seems to happen every few weeks.

It is a persistant problem that has me baffled and I was wondering if there is a fix for this or something that I can try to troubleshoot. The problem is getting worse.
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dosborne

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Re: DNS 323 Raid degrading
« Reply #1 on: June 10, 2010, 10:22:03 AM »
I'd try replacing the drive that keeps failing.......
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3 x DNS-323 with 2 x 2TB WD Drives each for a total of 12 TB Storage and Backup. Running DLink Firmware v1.08 and Fonz Fun Plug (FFP) v0.5 for improved software support.

jamieburchell

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Re: DNS 323 Raid degrading
« Reply #2 on: June 10, 2010, 10:23:45 AM »
I would turn off the NAS, remove the drives and insert them direct in a PC and use Seatools to test them both.

You might also want to try resetting the NAS to factory defaults.
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If your little 323 is not working right,
You've racked your brains and been up all night
Take a deep breath and wipe away the sweat,
Login as web admin and try a factory reset!

njphones

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Re: DNS 323 Raid degrading
« Reply #3 on: June 10, 2010, 11:04:40 AM »
I do not think that it is the drives-they were brand new and the odds of getting two bad drives? Also, I have tried switching the slots (after reformatting) and the problem happens in either slot, on either drive. I noted each failure and what drive failed.

If I restore the unit to factory defaults, would I need to upgrade the firmware afterwords?
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jamieburchell

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Re: DNS 323 Raid degrading
« Reply #4 on: June 10, 2010, 11:20:29 AM »
No need to re-flash the firmware after a reset.

I'm not sure switching hard drives in a RAID array is a good idea ?

Could be bad batch of disks if they were purchased at the same time.

:)
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If your little 323 is not working right,
You've racked your brains and been up all night
Take a deep breath and wipe away the sweat,
Login as web admin and try a factory reset!

njphones

  • Level 1 Member
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  • Posts: 8
Re: DNS 323 Raid degrading
« Reply #5 on: June 10, 2010, 11:29:26 AM »
I switched them after they were reformatted as single disks.

After reading some posts here I am considering going to two individual disks and abandoning the Raid 1 all together. Instead I would just back up Volume 1 to Volume 2.

This appears to be a better solution because I would not have to worry about the Raid 1 degrading.

Is there a reason not to do this?
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gunrunnerjohn

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Re: DNS 323 Raid degrading
« Reply #6 on: June 10, 2010, 12:18:16 PM »
The only thing that RAID-1 brings to the party is enhanced availability of the data.  Separating them and doing duplicate copies is better backup than RAID-1.
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Microsoft MVP - Windows Desktop Experience
Remember: Data you don't have two copies of is data you don't care about!
PS: RAID of any level is NOT a second copy.

jamieburchell

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Re: DNS 323 Raid degrading
« Reply #7 on: June 10, 2010, 12:25:20 PM »
Quote from: njphones on June 10, 2010, 11:29:26 AM
This appears to be a better solution because I would not have to worry about the Raid 1 degrading.

Clearly you won't get any RAID degraded errors if you're not running a RAID, but Id be concerned as to why the NAS thinks there is a problem with your drives. Hence the disk check suggestion...
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If your little 323 is not working right,
You've racked your brains and been up all night
Take a deep breath and wipe away the sweat,
Login as web admin and try a factory reset!

njphones

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  • Posts: 8
Re: DNS 323 Raid degrading
« Reply #8 on: June 10, 2010, 12:27:00 PM »
Quote from: gunrunnerjohn on June 10, 2010, 12:18:16 PM
The only thing that RAID-1 brings to the party is enhanced availability of the data.  Separating them and doing duplicate copies is better backup than RAID-1.

I believe you. In fact, it was reading your posts that convinced me.
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gunrunnerjohn

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Re: DNS 323 Raid degrading
« Reply #9 on: June 10, 2010, 12:29:11 PM »
I agree with Jamie on the problem isolation.  I ran my DNS-323 in RAID-1 for over a year, so with good drives it should work fine that way.
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Microsoft MVP - Windows Desktop Experience
Remember: Data you don't have two copies of is data you don't care about!
PS: RAID of any level is NOT a second copy.

njphones

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  • Posts: 8
Re: DNS 323 Raid degrading
« Reply #10 on: June 10, 2010, 12:35:13 PM »
Quote from: jamieburchell on June 10, 2010, 12:25:20 PM
Clearly you won't get any RAID degraded errors if you're not running a RAID, but Id be concerned as to why the NAS thinks there is a problem with your drives. Hence the disk check suggestion...

I guess it is my opinion the the issue is with the unit and not the disks.  If I eliminate the Raid issue and the disks fail then I know it is not the unit.
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njphones

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Re: DNS 323 Raid degrading
« Reply #11 on: June 10, 2010, 12:43:23 PM »
Quote from: jamieburchell on June 10, 2010, 12:25:20 PM
Clearly you won't get any RAID degraded errors if you're not running a RAID, but Id be concerned as to why the NAS thinks there is a problem with your drives. Hence the disk check suggestion...

Good point, I will run the tool on my disks.
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jamieburchell

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Re: DNS 323 Raid degrading
« Reply #12 on: June 10, 2010, 02:09:38 PM »
Make sure you have another backup ;)
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If your little 323 is not working right,
You've racked your brains and been up all night
Take a deep breath and wipe away the sweat,
Login as web admin and try a factory reset!

njphones

  • Level 1 Member
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  • Posts: 8
Re: DNS 323 Raid degrading
« Reply #13 on: June 11, 2010, 05:40:11 AM »
Okay, so today I turned my DNS 323 on and here is what is says on the Status Page:

Total Drive(s): 1

Physical Disk Info

Slot Vendor Model Serial Number Size

Right Seagate ST31000528AS 6VP05Q6H 1000 G 
Left Seagate ST31000528AS 6VP0481K 1000 G 

This makes no sense at all. Additionally, both status lights on the unit are steady blue indicating that 2 disks are inserted and functioning.
I had built a raid configuration, but it is gone!
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gunrunnerjohn

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Re: DNS 323 Raid degrading
« Reply #14 on: June 11, 2010, 05:43:37 AM »
Hope you have good backup. :)
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Microsoft MVP - Windows Desktop Experience
Remember: Data you don't have two copies of is data you don't care about!
PS: RAID of any level is NOT a second copy.
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