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DanielCoffey

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About DanielCoffey

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  1. I have just tried 6.8.0-rc1 to compare its parity checks to both 6.7.2 and the Tunables script since my array is very straightforward and the result is interesting and shows there is still room for improvement. The first thing I did before upgrading from 6.7.2 was reset all the Disk Settings tunables back to default (including nr-requests which defaults to auto now). My array is 2x WD Red 8Tb dual parity and 6x WD Red 8Tb data with 2x 512Gb SSD for cache. 6.7.2 default - 17h15 to 17h30 6.7.2 tunables - 15h30 6.8.0-rc1 default - 16h45 I have added a screenshot of the 6.7.2 Tunables and also 6.8.0-rc1 default values for comparison and I think there is still scope for improvement. I suspect that on my server we could find up to an hour in there that could be tuned out.
  2. If you have a spare PCI slot you also have the option of adding an HBA card such as the LSI SAS 9201-8i which will have two SAS ports. Each of these can be connected to four SATA drives using a SAS to SATA cable giving a total of eight mroe SATA ports. There are reputable resellers on eBay who will sell tested and flashed cards ready to plug in and go. EDIT : This does assume you have spare slots in your unRAID license of course.
  3. Perfect - I didn't know you could do that. Thanks!
  4. On my 6.7.2 Array with a 2xSSD Cache Pool, one of the cache drives threw a CRC Error during a Mover run and I would like to know how to clear the warning. I had just manually transferred about 13Gb from my main PC to the backup share and clicked the Mover to distribute it all according to the share preferences and I got a popup saying that the first Cache drive had experienced one CRC Error. Looking at the SMART Report for that device does show one CRC Error Count but all other values are healthy. A quick SMART test passes. The device is still flagged in yellow on the Dashboard and I would like to know if it can be cleared or if it is stuck that way?
  5. Here's a tip based on personal experience... make sure the array is not due to go to sleep while the Preclear is running. In my case it watched the array for 30 minutes, decided all was quiet, ignored the unassigned devices and shut down. Oh poop! Time to start over I guess. EDIT : well colour me impressed! When I woke the array, the Preclear docker simply resumed from where it had left off and was up and ticking by the time I reopened the WebUI.
  6. That is just what I needed, thank you. So just as with other Dockers, we can close the Docker window and the process inside it will carry on running. We can pop back later and reopen the WebUI and take a fresh peek at how it is getting on. Once it is completely finished we are free to stop the Docker if we want. Cheers.
  7. Please excuse the possibly idiot question but can I close the Docker command prompt window while the preclear is running (like you could with Screen) or must it remain open in order for the script to continue? On an 8Tb drive it will of course need to run for quite a while and this was not mentioned in the FAQ.
  8. Good point, thanks. I will report back with what I receive.
  9. Well I have to say I am REALLY impressed with WD's warranty support! Despite changing the SAS-SATA cable, trying the drive on a new HBA card and deleting the partition, it still did its odd shutdown thing one time in four. It still showed a slower transfer rate between 0-1Tb and that odd wobble between 5-6Tb compared to all the other seven identical drives. All the time it still performed perfectly well as a functioning hard drive in that it never lost data. First WD had me run their own SMART data collecting tool which the drive of course passed. They advised that they couldn't really accept the DiskSpeed Docker results as evidence in a Warranty case since it wasn't their own tool but agreed that it was clear the drive had "something odd" about it. They just turned round and said that I should send it in and they would just replace it with a new one. Not bad service for a two year old drive (which of course has a three year warranty). I feel that their opinion was that it was simply not worth the effort of sending the drive to a technician to be examined and analysed. Just replace it and move on. Customer happy? Yup.
  10. There we go - tidied up my post. I will be rerunning the script soon as I have swapped one WD Red 8Tb out of the array was it is behaving oddly on shutdown and the DiskSpeed docker showed it had odd behaviour and performance. Sadly WD are being very slow to acknowledge my Warranty case so I may have to escalate it on Monday.
  11. Hello folks - I need some help getting back into the web GUI of my array after a router change. I used to have the typical FTTC Modem to wireless router running IPv6 and DHCP to a static address (192.168.1.202) to my unraid box. Accessing the web GUI via http://192.168.1.202 was fine. I have just changed to a 4G modem/router running IPv4 (at the moment) and of course the DHCP server is not set up to issue static addresses yet. I quickly found the dynamic address the server had been assigned and accessed it via http://192.168.1.127 (this time) but immediately ran into a problem. My Windows 10 desktop browser changed the 192.168.1.127 into the "long" address that the box seemed to be using. It gave the Server Not Found error : We can’t connect to the server at 47451451017659140b69fc701f291711f8f06834.unraid.net. What do I need to change or reset in order to gain access to the web GUI again please? I do have a monitor on the server and I do have PuTTY.
  12. I can answer the last part... no, you don't have to set Tunables to default before using the tool. The first test is performed using "current". It then takes a peek at "default". Only then does it start probing the possible values that may affect the performance. If you want to set the values back to Default at any time, simply go to the Disk Settings page and delete the value in the fields that say "User Defined" and hit Apply. It will automatically reset them to Default for you.
  13. Good point, thanks. Now I have taken that drive off and also changed one of the SAS-SATA cables, I will observe the array. If it does it again I'll replace the card. Fortunately I can replace it like for like as I am not saturating it at all.