FrozenGamer

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About FrozenGamer

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  1. Ok, if i understand correctly no dice on the quick check of 6tb drives but since i have fast reads, my next parity check should be a lot faster.
  2. Splitting the 2 parities to different Chassis improved speeds by 30 to 50 percent. Speeds around 20MB/s for mover now. (EDIT) - maybe it didn't but it went up higher than ever before initially... I am thinking digging around for an old SLI capable motherboard and see if i can put 2 sas cards in instead of 1. As far as switching out the Parity drives, if i can locate 2 8tb drives that are, or 6tb drives (since i haven't incorporated any 8tb into this array for data) --- Can i try a parity check with write to some test drives without messing up my 2 8tb seagates? just shut down, put originals back in for parity and start it back up?
  3. Ironically i am seeing 6tb drives for 109 finally coming down in price!
  4. Parity check without correction speeds are about 90MB/s to start, which seems to be fixed. When i am using mover i get 10 to 15 MB/s still while writing to parity. I have considered splitting the parity drives - so that one is in one chassis and one in the other and doing a move to see if that changes things. Any other suggestions?
  5. Slow Parity Sync/Rebuild

    Rebuild done.
  6. Slow Parity Sync/Rebuild

    My rebuild will be done in about 6 hours. I will do the xfs repair on disk 2 as suggested. Any other troubleshooting tips for tonight?
  7. Preclear plugin

    Thanks!
  8. Preclear plugin

    If i install preclear plugin as per instructions on post 1, using gfjardim, will it work on 6.5 unraid? Or are there still problems?
  9. Slow Parity Sync/Rebuild

    I will wait for it to finish in a few more days. then start with that xfs repair you recommended and the tunables. Do you know why it continues to write parity drives past 6tb when the only drives larger than 6 are the parity drives? is it just putting additional parity in to fill the space?
  10. Slow Parity Sync/Rebuild

    I have been looking for documentation to show that it is 1GB/s. But i cant find it. I believe that is what it is though.
  11. Slow Parity Sync/Rebuild

    This is a screenshot of another server i have building 2 parity drives with same hardware except computer is much slower (but just 10 drives in 1 chassis instead of having 2 chassis going at same time) - total speeds are about 4x higher. -
  12. I am going to mark this solved, might need a little help copying stuff back tomorrow when it finishes, but i think assuming that the power doesn't go out again during rebuild it should be ok - if i get an answer on last post on the smart reports and using disks here, great, if not i will ask later with a separate post. Thanks so much for all who helped me. Also i am trying to get better about being more concise and easy to understand with posts. Thats a work in progress but constructive advice is appreciated.
  13. Slow Parity Sync/Rebuild

    I am in the process of rebuilding 1 of 2 parity drives and another drive - see attached screenshot for drive config and current speeds. It is taking about 5.5 days to do the rebuild. It seems that the time really slowed down a while back when i installed 2 8tb Seagate (non archive) drives from 2 6tb seagate drives. I have all my dockers turned off, i have directory caching to memory on. I am using 2 silicon graphics se3016 16 drive caddies to hold the drives. https://www.servethehome.com/sgi-rackable-3u-16-bay-se3016-sas-expander-chassis-forum-deal/ They are directly connected with 1 cable each (not daisy chained) to a SAS9207-8e card, which is in pci express on mother board for video card. I watched the speeds and was thinking, maybe its a 4 tb drive thats slowing things down, but speeds still bad going towards the 5 tb drives. I will have to wait a while to find out if it speeds up once both 4 and 5 tb drives are eliminated from the parity check. I have 4 drives not being used in the array that are in the Se3016, - they don't really have to be there, would that make a difference in speed? Note: i have been told to check filesystem on disk 2 with xfs_repair when the rebuild is done. - but we are past the 4tb drives so while it may be a problem i assume its not causing this problem specifically. What can i check/do to improve speeds with unraid settings? How much does drive placement in each Chassis make a difference - like maybe putting 1 parity in each chassis? I think that something is wrong here beyond the fact that i have so many drives, but i am not sure what. Are there utilities to test speeds? - i am going to try diskspeed plugin once rebuild is done to look for a slow drive. If i can find a motherboard with 2 pci express slots i could get a 2nd SAS9207-8e card. I know getting rid of some smaller drives and replacing with 8tb is in my future.. Thats about all i know, but just get the feeling something else is wrong. Any other observations/suggestions? Screen shot 1 - of rebuild Screenshot 2 - of rebuild Current Diagnostics during rebuild.tower-diagnostics-20180413-1657.zip

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