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Umfriend

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Umfriend last won the day on October 31 2018

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About Umfriend

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  1. Umfriend

    Mirroring pool

    One Pool Scenario: If a 10TB HDD fails then you can only store 6TB duplicated. This is because duplication requires both/each duplicate to be stored on a different physical HDD and after 6TB (duplicates on both 3TB HDDs and the 10TB HDD) you have no duplicate space left. Wrt Backup, yes. All data is stored in in plain NTFS format and I indeed backup one set of underlying HDDs. I run Windows Server 2016 Essentials and use Windows Server Backup. Not everyone is a fan but it has as yet never failed me (and I have had to recover). On your scenario, item #4: No. What you need to understand is where/how pooled files are stored. Let's talk about the first Pool on HDDs, say, F: and G:. You can still store files on F: outside of the Pool. On F:, you will find a (hidden) PoolPart.* folder. Anything stored in this folder is part of Pool 1. Same on G:. If you now add Pool 1 to the MOAP, then within that PoolPart.* folder, you will find another PoolPart.* folder. Anything stored in there is part of MOAP. Althoug you can copy/delete, this actually takes a lot of time. The easier way to go about this is: 4. Enable duplication on MOAP. 5. Stop the DrivePool Service 6. On F:\ Move all files from the upper PoolPart.* folder to the underlying PoolPart.* folder 7. Same on G:\ 8. Start DrivePool Service The advantage of steps 6 and 7 is that moving files onthe same HDD is very fast as it does not actually entail a read/write/delete of the files but simply rewrites the folder/location information. After step 8, DP will find that in MOAP, files are not duplicated and then perform a balancing/duplication pass. It will take some time depending on size and number of files but it will work well.
  2. Umfriend

    Drivepool on new Windows install

    AFAIK, yes. It certainly did when I moved from 1.X to 2.X.
  3. Umfriend

    Remove duplicated data

    If your Pool has duplicated data then you must have turned it on for the Pool or individual folders. Just turn it off and DP will unduplicate.
  4. Umfriend

    Mirroring pool

    You can create one Pool with the 4 HDDs and have x2 duplication (although, if one of the 10TB HDDs fails, then you could run into the issue that the Pool can not provide x2 duplication anymore because there is only 6TB of other HDDs remaining). Another way of organising things is to create two Pools of 10TB+3TB each, no duplication and create a third Pool consisting of the other 2 with x2 duplication. One reason to do it like this could be if you want to run a backup solution that does not run (well) of a virtual disk (which is what any Pool is) that does not support VSS. Moreover you are assured that all files reside only one time on any set of two HDDs (or the number of HDDs that is in one the underlying Pools). I think this second method is what you tried to do. The reason it did not work is that the data needs to be transferred from the underlying Pool to the MOAP (Mother Of All Pools). With a setup that uses Hierarchical Pooling, you actually end up with three Pools and you can read&write to each of them.
  5. Umfriend

    Stablebit Scanner loses all settings on unexpected shutdowns.

    What is really strange is this: 1. I had a few unexpected shutdowns (no UPS). 2. Scanner had forgotten everything about scan history, ignored SMART warnings etc. 3. I just swapped a backup HDD and of the now inserted backup HDD, Scanner does remember that its last scan was 13 days ago...
  6. Umfriend

    Stablebit Scanner loses all settings on unexpected shutdowns.

    I have the same issue. Literally everything is gone. I don't see why it has to be that way.
  7. Umfriend

    Question regarding transferring drivepool to external HD

    Not sure what you are looking for. If the other PC has enough ports, then you can simply install DP on that PC and then connect the HDDs. DP should recognise the Pool on the new PC. If you do not have enough ports and can only attach a few at a time then you could copy the files from a one or a few HDDs to a single very large HDD indeed. Windows will read from the Pooled HDDs without actually running DP easily as they are simple NTFS formatted drives. Without DP, the PC just does not know to present the HDDs as one big virtual HDD.
  8. Umfriend

    Possible to pool two machines together?

    I don't think DP can do that but Chris would know.
  9. Umfriend

    Possible to pool two machines together?

    Are you looking to create a short of dropbox experience? AFAIK, the answer is no.
  10. Umfriend

    DrivePool retired by Windows 2016

    Ah. In that case I would write a ticket, this may be a real support issue.
  11. Umfriend

    DrivePool retired by Windows 2016

    I would try some serious IO on Disk 5 outside of DP to see if it re-occurs that way. I wonder whether it could be related to the HDD itself or a controller/driver/BIOS. Have you installed Scanner as well? Perhaps a burst test on that HDD?
  12. Umfriend

    2 pools - best setup method?

    I am not exactly sure what you want to accomplish. Do you want duplication and fast reads? You might want to consider using hierarchical pools, something like: Pool A: 12 x 500GB SSD Pool B: 2x4TB + 2x2TB + 1x 500GB SSD Pool C: Pool A + Pool B I would think that writes go fast (Pool A SSD only, Pool B uses the SSD Cache) and that reads go fast as well as they would read from Pool A effectively (even if the request goes out to Pool C). The downside is that you can only store about 6TB duplicated.
  13. Umfriend

    Partition nvme and use as 2 cache drives

    That's what I would've done :up:
  14. Umfriend

    "Disk is missing" - 6 out of 10 after reboot

    Some here go rackmounted servers. And if an actual rack is an issue then there is always this https://wiki.eth0.nl/index.php/LackRack for fun . I went with http://www.lian-li.com/pc-a79/ and https://www.icydock.com/goods.php?id=242 (well, I got a tray-version, silly me). I can easily fit 11 3.5" HDD (5 of them swappable without opening the case). and 6 2.5" HDD/SSD. It is still quite a bit of money but at about 55% of that DiskStation perhaps not a bad deal. Of course, I also had to get a IBM1015 + a small fan, another 60 bucks or so. And breakout cables, say another 50. But at a total of EUR 660 I was done. And I am sure there are (somewhat) cheaper alternatives to the case and cage. The Lian Li PC-D600 might be an alternative, especially if there is a way to add cages to the left side, never figured out if that is possible.
  15. Umfriend

    "Disk is missing" - 6 out of 10 after reboot

    Not sure. eSata perhaps or some SAS controller with external ports.Personally, I'm all for bigger cases, but that's just me. Have you tried chkdsk /f?
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