Corrupt file system?

[tekguru]

Guys this is a difficult post to make. Firstly I'm suffering some health issues (hopefully slowly recovering) which means I've lost the last 3 months of my memory and prior memories are slowly coming back.
During the 'lost' time it lokos like the NAS died with a failure message:

Storage Pool 1 on syncity has degraded (total number of drives: 4; number of active drives: 3).Information of the drives in abnormal status is shown below:
Drive 4, Model: ST3000VN007-2AH16M, Serial number: ZGY6D18NSeveral reasons may result in storage pool degradation. Please go to Storage Manager > Storage to understand the cause of degradation, or refer to this article to learn how to repair a degraded storage pool.From Synology - syncity

Now that I'm slowly recovering I'll be looking to see what can be done to resolve the issue.

The NAS has been powered off for 5 weeks as we've had building work carried out on the house.

I'm thinking that the possibilities are the following:

• Power on the NAS, access the control system, see if I can identify the faulty drive and remove it from the pool. I'm wondering if doing that will get it back online until I can get a new drive
• OR do I have to keep it offline until I can get a replacement drive?

Looking at the NAS I think (memory still recovering) it has all 5 bays filled. I can't check yet until the work on the house completes towards the weekend. Any thoughts would be appreciated.

 

[Telos]

When you can start the NAS the first order of business should be to ensure your NAS backups are up-to-date.

You say “has all 5 bays filled” yet the error message says “total number of drives: 4; number of active drives: 3”, so there is a “missing” 5th drive. This could be a hot spare, or a second pool/volume. You should post screenshots from Storage Manager showing all pools, volumes and overall system. Without that information, I can only wildly throw darts at possible scenarios.

do I have to keep it offline until I can get a replacement drive

That's up to you, once you have confidence in your backups.

Sorry to hear of your health issues. Praying for full and accelerated recovery.

 

[Rusty]

Information of the drives in abnormal status is shown below:
Drive 4

As Telos said screenshot would be best just so we have a better understanding of the setup, but the error message also mentioned Drive 4 as the faulty one.

 

[tekguru]

Thanks, as it hosted my forum I need to get it up as quickly as possible, so I'm thinking that removing the faulty drive from the storage pool would do that. Then I can get a new drive within a week or two?

That was a typo it should have read 4 drive bays

On checking my notes it is currently configured with a 4-drive storage pool using Seagate drives (Model: ST3000VN007-2AH16M).

Once the building works finish (weekend hopefully) and things get back to 'normal' I'll turn on the NAS and post what extra information I can.

Thank you for the kind thoughts.

 

[fredbert]

Guys this is a difficult post to make. Firstly I'm suffering some health issues (hopefully slowly recovering) which means I've lost the last 3 months of my memory and prior memories are slowly coming back.

Sorry to hear this. Hope you have a good and quick recovery.

If the NAS is still powered up then getting information from Storage Manager would be useful. Did you add another NAS to DS918+ showing n your profile? The DS918+ has four bays, with only getting an extra five by adding the DX517 expansion unit. So you might just be looking at a degraded four drive RAID.

 

[tekguru]

Thanks fb Hoping so too!

It is indeed the DS918+ I couldn't remember.

I'll post additional data when it gets reconnected over the weekend / next week.

So yes it will be a degraded four drive RAID. So if that is the case what would be the best recovery for that situation? I guess the NAS couldn't limp along with only 3 drives?

 

[Telos]

I guess the NAS couldn't limp along with only 3 drives?

It can. That's why RAID is predominantly to ensure uptime. The downside is that should another drive fail, before the replacement drive is assimilated, the loss could be catastrophic if backups aren't available.

 

[tekguru]

Okay understood. I'll post the details as soon as everything is back and connected and we can move forward from there. This should be over the weekend or early next week.

Hmm it looks like the Seagate ST3000VN007-2AH16M drives are no longer available on Amazon though.

 

[Telos]

Any NAS drive should be fine. Seem like Seagate dropped the 3 TB drive from their line.

 

[tekguru]

Thanks, I'll bear that in mind when shopping for a replacement.

 

[White Bear]

FYI: If you are interested in staying with 3TB, eBay has several listings for Seagate ST3000VN007 - new and used. Best wishes on your recovery.