Famlank Posted January 26 Share Posted January 26 Hi everyone I'm testing out Unraid as a replacement for TrueNas. When I transfer data to the array I get write speeds around 15-20 MB/s. I know it's not a very high speced system, but with TrueNas I was easily getting 100 MB/s. Any suggestions? Setup: CPU:Intel® Core™ i7-3770 CPU @ 3.40GHz HVM:Enabled IOMMU:Enabled Cache:L1-Cache: 256 KiB, L2-Cache: 1 MiB, L3-Cache: 8 MiB Memory:32 GiB DDR3 (max. installable capacity 32 GiB) Network:bond0: fault-tolerance (active-backup), mtu 1500 eth1: 1000 Mbps, full duplex, mtu 1500 Kernel:Linux 6.1.64-Unraid x86_64 OpenSSL:1.1.1v DEVICE IDENTIFICATION TEMP. READS WRITES ERRORS FS SIZE USED FREE Parity WDC_WD20EARS-00MVWB0_WD-WCAZAA242460 - 2 TB (sdi) 41 C 374,804 380,236 0 Disk 1 WDC_WD20EZRX-00D8PB0_WD-WCC4M0123343 - 2 TB (sdj) 41 C 375,735 377,547 0 xfs 2 TB 62.1 GB 1.94 TB Disk 2 WDC_WD20EZRX-00D8PB0_WD-WCC4M0125113 - 2 TB (sdk) 37 C 542 537 0 xfs 2 TB 14.0 GB 1.99 TB Disk 3 WDC_WD20EZRX-00DC0B0_WD-WMC301177868 - 2 TB (sdl) 39 C 541 538 0 xfs 2 TB 14.0 GB 1.99 TB Disk 4 WDC_WD20EZRX-00DC0B0_WD-WMC301181774 - 2 TB (sdn) 38 C 541 538 0 xfs 2 TB 14.0 GB 1.99 TB Disk 5 WDC_WD20EZRX-00DC0B0_WD-WMC301182803 - 2 TB (sdo) 37 C 541 538 0 xfs 2 TB 14.0 GB 1.99 TB Disk 6 WDC_WD20EARS-00S8B1_WD-WCAVY3598618 - 2 TB (sdm) 42 C 542 538 0 xfs 2 TB 14.0 GB 1.99 TB Array of seven devices 39.3 C 753,246 760,472 0 12 TB 132 GB 11.9 TB Boot Device DEVICE IDENTIFICATION TEMP. READS WRITES ERRORS FS SIZE USED FREE Flash Transcend_128GB - 124 GB (sde) * 1999 3487 0 vfat 124 GB 501 MB 123 GB Quote Link to comment
Solution trurl Posted January 26 Solution Share Posted January 26 https://docs.unraid.net/unraid-os/manual/storage-management/#array-write-modes Quote Link to comment
trurl Posted January 26 Share Posted January 26 Attach diagnostics to your NEXT post in this thread. Quote Link to comment
Famlank Posted January 26 Author Share Posted January 26 Setting Tunable to reconstruct write improved speeds to 75-80 MB/s nas-diagnostics-20240127-0017.zip Quote Link to comment
Famlank Posted January 26 Author Share Posted January 26 While much better and maybe even acceptable it's still a bit of TrueNas. Is this to be expected or is it possible to tweak it further? I also wonder of ZFS should be prefered to xfs? I read about it in the following link and found Zpool quite interesting. any thoughts on that? Unraid | ZFS, Unraid Array, or Hybrid? Choosing the Right Storage Solution for Your Needs Quote Link to comment
trurl Posted January 26 Share Posted January 26 Are any of your disks using that Marvell? Quote Link to comment
Famlank Posted January 26 Author Share Posted January 26 No they are all on a DELL H310 6Gbps SAS HBA FW:P20 9211-8i IT Mode ZFS FreeNAS unRAID 2* SATA Cable Quote Link to comment
JorgeB Posted January 27 Share Posted January 27 11 hours ago, Famlank said: While much better and maybe even acceptable it's still a bit of TrueNas. Is this to be expected or is it possible to tweak it further? TrueNAS uses a zfs pool that can be striped, you can get similar/identical speeds if you create an Unraid zfs pool with the same config, the array will always be slower since there's no striping, speed is limited by the slowest disk you have at that point. Quote Link to comment
Famlank Posted January 27 Author Share Posted January 27 (edited) Thanks everyone! I followed this guide to setup zfs: Overview ZFS for Unraid (Create, Expand and Repair ZFS Pool on Unraid) (youtube.com) Write speed is now ~ 110 MB/s over 1Gbit ethernet Edited January 28 by Famlank Quote Link to comment
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