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Covecube Inc.


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Everything posted by Umfriend

  1. Well, duplication can be turned off easily and DP will remove excess duplicates. Not sure how you got duplication on just two drives. Some screenshots might help. The balancing that has occurred will be harder to revert. Why don't you want balancing? The only reason to uninstall I can see is if you don;t want to use the software. DP itself is able to reorganise as you want.
  2. I don't understand. At default settings, DP would already re-allocate files so that you would have an optimal distribution. Optimal in that case means that each drive has (approximately) the same amount of free space. If you have SSDs as cache and Scanner then you want to have Scanner at top, then SSD Optimizer. You can use the Disk Space Equalizer, I think to get all drives filled to [x]% but see no reason to do that. IMHO, with DP, default settings work very well without complicating matters. I think I understand you "seeded" the drives. That is perfectly fine. DP will rearrange fi
  3. Are you showing hidden files and folders as well? I would expect two PoolPart.* folders on these drive...
  4. Is thjat 192 read or write. I don't know. SMR drives do well on read and sequential writes. Random writes though above a certain limit though, ouch. If 20MB/s is a cap you experience on all drives writing through DP then there is a different issue. Time for some research, e.g. waht do you get on writing to those drives directly? You need to measure this with large, non-single file transfers I think.
  5. So on the two drives that have close to 100% other, what you may want to do is called "seeding": 1. Stop DP service 2. On each of these drives, move the data in the current Poolpart.* folder to the new Poolpart.* folder 3. Start DP (or reboot) 4. Let DP remeasure / rebalance. With the 12TB, if you have a precise product number you could see if, perhaps, it is a SMR drive (although AFAIK, there are no 12TB SMR HDDs by WD
  6. Can you see if Scanner is scanning that drive at that time?
  7. In RAID might work. Just adding a few drives as SSD Cache may run into the same problem I fear. Also, one SSD, even if it is SATA, will outperform 4 HDDs I think. I am assuming you don't have actual SAS-drives. Depending on the actual chipset, two RAIDed SSDs might do the job fully.
  8. Assuming there is no duplication, wouldn't a single 2TB SSD suffice as a cache? Way simpler for a somewhat specific use case IMHO.
  9. Actually, if you have duplication then this procedure is, IMHO, incomplete. When you move files out of the poolpart.* folder, DP may remeasure and suddenly find duplicates are missing and re-duplicate. If you have duplication, you can just power off the machine, physically remove the drive, reboot and then remove the missing/faulty drive from the Pool through the GUI. Remeasure/re-duplicate and it is done. If you do not have duplication, then I would attach the new drive, stop the drivepool service (so DP will not interfere), copy the data from the faulty HDD poolpart.* folder to th
  10. I read this is as asking how to identify the actual physical drives in the case. I physically label my drives and stack them in the server according to their labels. Without something like that, I have no clue how you would be able to identify the physical drives...
  11. Moving data to the Pool while retaining the data on the same drive is called seeding and it is advised to stop the service first (https://wiki.covecube.com/StableBit_DrivePool_Q4142489). I think this is because otherwise DP might start balancing while you are in the process of moving drive-by-drive. I am not sure but I would think you would first set settings, then do the seeding. (I am pretty sure that) DP does not "index" the files. Whenever you query a folder DP will on the spot read the drives and indeed show the "sum". Duplicate filenames will be an issue I think. I think that D
  12. Yes, DP does not need nor use drive letters for the underlying drives.
  13. Do you have this option checked in Scanner: Settings -> Advanced Settings and Troubleshooting -> Advanced Settings -> DirectoIO -> Unsafe check.
  14. I had DP running on a Celeron 430 or somesuch, 8GB without any issues. DP is rather lean and simply does not need much.
  15. If you are comparing single SSD vs a Pool of spinners, then yeah, the SSD will load way faster. However, if you compare a single HDD vs a Pool of spinners then the difference should be negligible (or perhaps sometimes a bit better but I have hardly ever seen that happening).
  16. And here I was thinking HBA==IT.... Turns out I was wrong.
  17. So I don;t really know. I have a SAS HBA, an IBM1015 butcalled Dell H310 or somesuch. I never understood the LSI chip/card numbering. In any case, I did have to get the latest bios for my card, P20* or something. Also, with Scanner, I had to Settings -> Advanced Settings and Troubleshooting -> Advanced Settings -> DirectoIO -> Unsafe check. Never had an issue with that and SMART is read. I would try the Scanner setting first, reboot and see how it goes.
  18. Not a dev either. Another problem might be that once one starts writing a file, it may not be yet known how large that file will be. Sure, a simple copy should not have that issue but what if you save a stream of as yet unknown length? Writing to the disk with most space free seems to be the safest option (and personally, I like safe). Also, I find it hard to think of a scenario where a subsequent reshuffle of files would measurably impact performance.
  19. That's why I'm asking for the exact model.
  20. Yes, you can simply uninstall. no files will be lost. Unless you do something weird.
  21. So many have no such issues at all. Could it be there is something somewhat specific to your situation is going on? Some here will be trying to help but it helps if you provide a bit of sensible information. So, again, have you checked Event Viewer (for IDE/ATAPI/DISK errors specifically but any other errors might be relevant) and what model HDD s this exactly? Also, can you try to copy some represntative files to that drive F:\ instead of to the Pool?
  22. Have you checked Event Viewer and what model is thus exactly? And if the data you want in the Pool is already on the disks you want to add to the Pool, then there is a much faster way of getting them in the Pool.
  23. Adding a drive does not mean that you can not store data outside of the Pool on that drive. The Pool data is located in a hidden folder (PoolPart.*). I think you want to move the data outside of the Pool on that drive into the Pool. This is called seeding and how to do it is described here: https://wiki.covecube.com/StableBit_DrivePool_Q4142489
  24. I know there is an SSD Optimzier plugin but AFAIK it only serves as a write cache, you can't dictate which files should be on the SSDs for fast reads. There are also File Placement Rules where you can map certain folders to specific SSD/HDDs but there I don't think you can use a single SSD for both functions (not sure, maybe you can).
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