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Everything posted by Umfriend

  1. Yeah, so it might have been better to stop the DrivePool service before starting but really the behavior you describe is unexpected by me.
  2. Ah, you would write files to G:\. DP will save two duplicates to E and F. Each of E and F would divide single instances to A+B and C+D respectively. Do not write to E or F. You can, but those files will only be part of Pool E (or F) and not be duplicated. Much like writing to a drive directly outside of the hidden PoolPart.* folders, those would not be part of any Pool.
  3. I would think that you could simply format the relevant drives. DP will then say they are missing and if you remove the drives in the GUI then it should be done instantly.
  4. Umfriend

    Simple Question

    Yeah, so now you have Drive A + B = Pool X (with x1 duplication) Pool X + Drive C = Pool Y (with x2 duplication) You can choose to store files in Pool X (and then they will not be duplicated and present on Drive A and B ) Or store them in Pool Y (and then they will be duplicated and present on Drive A/B for one instance and Drive C for the other instance). So you need to move the files from Pool X to Pool Y. The best way to do this is to "seed" them. You would: 1. Stop the DrivePool service 2. In drive A, locate the hidden Poolpart.* folder. The top level show
  5. I have WSE2016 with all ServerFolders on an x2 Pool (and I do backup both OS and one instance of the ServerFolder files as well). No issues. x2 duplication is noce but no replacement for a backup (let alone an offsite rotating backup).
  6. I think I understand now. As you say, ECC can correct some corruption in memory, say a bit erroneously flipping. Scanner does not correct the same type of corruption on a HDD. Scanner, aside from polling SMART data, periodically checks whether it is able to read an entire disk. If a bit on a disk is simply flipped (aka bit-rot I think) then Scanner won't pick that up. Scanner will pick up unreadable sectors (and file system issues as it also does a CHKDSK AFAIK), even if they are presently not used to store data. Unreadable sectors anywhere on a drive is an issue IMHO. But if you force sn
  7. I don't see how ECC memory comes into play into all this. The benefit is that Scanner may be able to warn you of a drive that is starting to fail based on SMART data. Also, if sectors become bad, it would pick that up during a scan (I don't know snapraid, if it reads *every* file every night then that should be close although Scanner also checks sectors not currently in use). Scanner checks drives depending on a schedule that you can set (and you can force scanning of individual drives at any time through the GUI).
  8. Just install DP on the new machine. It will recognise the Pool. There is only one caveat I know if and that applies to the situation where you use balancers not installed by default. In such a case you would only connect the Pooled drives once DP + plug-ins are installed.
  9. You could have just one Pool with some files duplicated and others not. I understand you want good protection, but against what exactly? One drive failure? Accidental deletions? Fire/theft? For one drive failure and continuity, DP with x2 duplicarion is, IMHO, better (by far) but at the cost of needing more storage capacity. Just some thoughts.
  10. I really wouldn't know but I would wonder whether you'd be better off just using DP with x2 and a CloudDrive or a real backup solution. I am not familiar with SnapRaid but in your setup, as far as I can tell, you'd have data stored in Pool 1 and Pool 2 and then have both duplicates protected by parity. So, you'd use more storage capacity then either a simple x2 duplicaiton or x1 duplication + parity setup. You have single files in excess of 1TB? Anyway, it would then simply write to the archive things. BTW, if it is a NAS, what kind of network do you have? If it is "just' a 1Gb netwo
  11. Within Scanner you can do: Settings -> Scanner Settings -> Open Advanced settings and troubleshooting -> Advanced Settings -> Scanner - ScanMaximumConcurrent and set to a high(er) number. I think that would allow you to scan many disks at the same time. Having said that, I set Scanner to scan every 14 days and have ensured that the drives are all scanned at different days. Other than for a quick first scan, I would prefer scanning my collection to be distributed over time.
  12. So in DP, there are a number of balancers. One of them, by default, is Stablebit Scanner. If you de-activate that one then DP will not migrate (you can also set parameters within that balancer to determine what kind of things would cause an evacuation). Having said that, if the number of unstable sectors increases then I would want to make sure I had enough space to replace. I would be comfortable with 2 sectors but force Scanner to re-scan and if that number increases then, yeah, probably a good idea to at least add a disk. Whether this disk needs to be taken out depends on preferences, dupli
  13. I wouldn't know what it the best option. Given how comfortable I am with DP, I would have done it the same as you (I realise I proposed another scenario in my previous post but that would have been my way to go *if* I minded SnapRaid having to work for 12 hrs).
  14. I do not have SnapRaid but from what I have read, I think I would have done it as follows (I am assuming that DP is set not to rebalance because that might cause a lot of files being from other drives even to the new 12TB drive): 1. Add net drive to Pool; 2. Stop DrivePool Service; 3. Robocopy from the old drive everything *within* the hidden PoolPart.* folder to the hidden PoolPart.* folder on the new drive; 4. Either delete from the old drive or physically disconnect/remove it; 5. Change Snapraid config file; 6. Restart DrivePool Service (or reboot pc); 7. Remove old drive f
  15. Well, it does indeed need such a list. But rather then keeping its own list, it uses the standard NTFS database on the underlying drives. Now I am not the developer but my guess is that whenever DP balances, it DP simply queries the underlying Drives for the data on the files. Edit: Also, keeping a seperate database up-to-date may actually be quite burdensom as a user may alter files in the Pool without going through DP by operating on the underlying drives.
  16. No, DP does not know which files are on a lost/disconnected/removed drive. For that it would have to maintain some sort of database which, to my mind, goes against the idea of a lean and "simple' app. Having said that, there is the DPCMD command line app that does create a list of all files in the Pool. However, that is a snapshot only.
  17. I think you can. Just be sure you stop the drivepool service prior to doing this (and I am not even sure this is necessary, but I would) and restart service (or reboot) after you finish. Assuming Disk Management does not screw up, the data should be safe in any case because everything is stored in plain NTFS format. Of course, a backup never hurts. An alternative is the free version of EaseUS Partition Manager..
  18. Not sure how the transferspeed would be higher and if you were to copy files to the Pool then, by default, DP would write to the drive with most free space available...
  19. In principle, yes. Not sure how to guarantee that they will stay there due to rebalancing, unless you use file placement rules.
  20. No, you only need a license on Server and then allow PC and laptop to access a share that points to the virtual disk DP makes for you. On Android, no clue.
  21. You could use Hierarchical Pools. Say you have disks A, B internal and C is the external one. You can then: 1. Create a Pool Q consisting of A and B, no duplication 2. Create a Pool R consisting of C, no duplication (*) 3. Create a Pool P consisting of Pools Q and R, x2 duplication. However, I don't think there is a good way to deal with temporarily removing drives. AFAIK, if you then (physically) remove/disconnect drive C, DP will put Pool P in read-only mode. May be what you are looking for but I'm not sure that will always work out well. Moreover, is that a USB connected drive? A
  22. I think https://stablebit.com/Contact
  23. Then perhaps you need to follow Terry's instructions on the other underlying drives first.
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