[Bad sector bizarro-ness.]

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The important bit here is the long format, though.  This writes to the ENTIRE drive, and can/will cause the drive to reallocate or correct bad sections of the disk.

Could this be confirmed via S.M.A.R.T. attributes?

I came across this post while searching for answers to an odd situation I had the other day. I swapped out a bad drive and filled its replacement with several TB of data; everything was looking good at this point. However, the next day, I was having some power issues and my machine rebooted multiple times in quick succession. Following this, Scanner reported unreadable sectors on the new drive. But, after marking those sectors as unchecked, Scanner reported them as good once it scanned them again. This has me worried that I ended up with a defective drive.

[Scanning schedule questions]

Adding to this thread as my questions are in the same vein.

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This depends on a number of factors, but over time, it should do this, actually.

I've been using StableBit Scanner for over a year now and my disks are all still scanned in pretty close proximity each month.

I too would love if they were staggered over the month. Is there anyway I can accomplish this?
Perhaps by disabling scanning of all disks then enabling one every few days?

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And this is because, the 30 days isn't from the last time it was scanned, it was from the last time a specific region of each drive was scanned. 

As a consequence, a lot of my disks are always around 20-29 days since last scan since there was a few week period of time at some point where the entire system was constantly busy so StableBit Scanner wasn't able to finish scanning any of the disks during that time. e.g. A disk has some regions that were last scanned on June 12th while other were last scanned on July 3rd. So they are going to continue to rotate being scanned every 30 days, keeping it in a constant state of never being fully scanned for the last 20ish days.  Is there anyway I can force a full scan of a disk to get the regions back in sync?

Thanks.

[SSD Optimizer results in large unusable for duplication size.]

I have a pool of 8 drives, half of which are SMR. As you may know, large SMR writes are painful. 

Therefore, I attempted to make use of the SSD Optimizer balancer to prioritize real-time writes to my CMR drives and fill the SMR drives in the background.

However, now I'm in a situation where a third (1.7/4.7 TB) of my free space is not available for duplication.

 

My CMR drives make up the larger portion of my pool (28/50 TB) so I thought my plan would work without any issues.

I followed some of the suggestions on the pinned "SSD Optimizer problem" thread but the problem remains.

I've rebalanced several times without anything significant changing.

 

Hoping someone can advise me on how to make that space available for duplication. Thanks in advance.

 

[S.M.A.R.T. - 78.4%]

Actually, many attributes show this value.

[S.M.A.R.T. - 78.4%]

After a bit of research, I've discovered that even though the maximum value of an attribute is 255, manufacturers choose a maximum value that suits them (usually a nice round number). In WD's case, they have chosen 200 (200 / 255 = 78.4%). I have an HGST drive that seems to be using 100 instead which results in 39.2%.

[S.M.A.R.T. - 78.4%]

What is the significance of 78.4% in the S.M.A.R.T. details? Even the documentation has this exact value.

I'd expect 100% if an attribute is "perfect" (on a new drive, for example) but all of my drives seem to be showing 78.4% at most.

Thanks in advance.

[Google Drive Backup and Sync]

I've been having this same issue since I moved my Google Drive folder to a pooled drive. 

Every time I restart my computer (or the application), Backup and Sync behaves as if all of the files are different and "uploads" them. Fortunately, it seems that Google Drive is smart enough to detect that the files haven't actually changed as I do not see any activity on the web UI. This is annoying though as the process takes quite a while and there is conflicts for files that I actually changed. 

As a result, I decided to move my Google Drive folder to a standalone drive (along with my Plex Media Server folder).

[Reflect Half Space When Duplication Enabled]

Thanks for the responses.

I've just migrated from a hardware RAID setup to a software solution so I really do appreciate the flexibility of DrivePool. I looked into Storage Spaces as well but really did not want to lock myself into anything again, considering the whole reason I switched to a software solution was to get away from that sort of rigidity.

As you say, this little drawback is a small price to pay for that flexibility and I can understand how this feature would be difficult to implement considering the various use cases that are made possible by this flexibility, just thought I'd ask if any such thing is possible. I'm sure I'll get used to mentally halving the numbers I see over time .

[DrivePool Marking Internal Drive As External]

Thanks for the response.

I was considering removing and re-adding the drive just to get rid of the external label but, like you, I decided it's not worth the effort if it's just a label with no actual consequences.

[DrivePool Marking Internal Drive As External]

I previously had a drive in an external enclosure and have just moved it inside of the case.

DrivePool is still marking this drive as external. Is there any consequence to this?

[Reflect Half Space When Duplication Enabled]

I've just started using DrivePool and have set up a pool of 3 drives and enabled pool-level duplication.

Is it possible to have the pool drive only reflect half of the free space and half of the total space when looking at it from Windows?

I find the total space and total free space to be misleading since every file actually takes up double its size so I effectively only have half that amount to work with.