February 23, 20251 yr Author 16 minutes ago, JorgeB said: Post the output from lshw -class disk to see if shows more info lshw -class disk *-disk:0 description: SCSI Disk product: X356_S16333T8ATE vendor: NETAPP physical id: 0.0.0 bus info: scsi@21:0.0.0 logical name: /dev/sdd version: NA04 serial: S2JVNA0H907615 size: 3576GiB (3840GB) capabilities: gpt-1.00 partitioned partitioned:gpt configuration: ansiversion=6 guid=528cfac9-d657-4817-9fa1-4808d340e9fe logicalsectorsize=512 sectorsize=4096 *-disk:1 description: SCSI Disk product: P1633N38 EMC3840 vendor: SAMSUNG physical id: 0.1.0 bus info: scsi@21:0.1.0 logical name: /dev/sde version: EQPC serial: NZNCAH204684 size: 3577GiB (3840GB) capabilities: gpt-1.00 partitioned partitioned:gpt configuration: ansiversion=6 guid=2adfb6d4-63f6-477e-be88-c2db15dce638 logicalsectorsize=512 sectorsize=4096 *-namespace:0 description: NVMe disk physical id: 0 logical name: hwmon2 *-namespace:1 description: NVMe disk physical id: 2 logical name: /dev/ng0n1 *-namespace:2 description: NVMe disk physical id: 1 bus info: nvme@0:1 logical name: /dev/nvme0n1 configuration: logicalsectorsize=512 sectorsize=512 wwid=eui.e8238fa6bf530001001b448b4857021a *-namespace:0 description: NVMe disk physical id: 0 logical name: hwmon1 *-namespace:1 description: NVMe disk physical id: 2 logical name: /dev/ng1n1 *-namespace:2 description: NVMe disk physical id: 1 bus info: nvme@1:1 logical name: /dev/nvme1n1 size: 931GiB (1TB) capabilities: gpt-1.00 partitioned partitioned:gpt configuration: guid=b06441ae-fba1-43cb-ab6d-e9b9403fada4 logicalsectorsize=512 sectorsize=512 wwid=eui.e8238fa6bf530001001b448b497bd861 *-disk:0 description: SCSI Disk product: HSCAC2DA2SUN1.6T vendor: HGST physical id: 0.5.0 bus info: scsi@22:0.5.0 logical name: /dev/sdk version: A29A serial: 001703J9P9WA 09WYP9WA size: 1490GiB (1600GB) capabilities: partitioned partitioned:dos configuration: ansiversion=6 logicalsectorsize=512 sectorsize=4096 signature=9f2f9b60 *-disk:1 description: SCSI Disk product: HSCAC2DA2SUN1.6T vendor: HGST physical id: 0.7.0 bus info: scsi@22:0.7.0 logical name: /dev/sdl version: A29A serial: 001701J9E3BA 09WYE3BA size: 1490GiB (1600GB) capabilities: partitioned partitioned:dos configuration: ansiversion=6 logicalsectorsize=512 sectorsize=4096 signature=9f2f9b66 *-disk:2 description: ATA Disk product: ST18000NM000J-2T physical id: 0.8.0 bus info: scsi@22:0.8.0 logical name: /dev/sdm version: SN02 serial: ZR55L6F3 size: 16TiB (18TB) capabilities: gpt-1.00 partitioned partitioned:gpt configuration: ansiversion=6 guid=820606a4-a4df-432d-882e-f80bdb7fb866 logicalsectorsize=512 sectorsize=4096 *-disk:3 description: SCSI Disk product: P1633N38 EMC3840 vendor: SAMSUNG physical id: 0.9.0 bus info: scsi@22:0.9.0 logical name: /dev/sdn version: EQPC serial: NZNCAH205439 size: 3577GiB (3840GB) capabilities: gpt-1.00 partitioned partitioned:gpt configuration: ansiversion=6 guid=511e76fd-ca0d-485e-921b-2de651c3292b logicalsectorsize=512 sectorsize=4096 *-disk:4 description: SCSI Disk product: ST18000NM005J vendor: SEAGATE physical id: 0.a.0 bus info: scsi@22:0.10.0 logical name: /dev/sdo version: ET02 serial: ZR549KZF0000C227AU2U size: 16TiB (18TB) capacity: 44TiB (49TB) capabilities: 7200rpm gpt-1.00 partitioned partitioned:gpt configuration: ansiversion=7 guid=f57d7207-7875-4137-b594-452dbfcc9953 logicalsectorsize=512 sectorsize=4096 *-disk:5 description: ATA Disk product: WUH721818ALE6L4 physical id: 0.b.0 bus info: scsi@22:0.11.0 logical name: /dev/sdp version: W660 serial: 5DG6TH9J size: 16TiB (18TB) capabilities: gpt-1.00 partitioned partitioned:gpt configuration: ansiversion=6 guid=3b53efe2-f614-4f72-879a-f7e587c41903 logicalsectorsize=512 sectorsize=4096 *-disk:6 description: SCSI Disk product: HSCAC2DA2SUN1.6T vendor: HGST physical id: 0.0.0 bus info: scsi@22:0.0.0 logical name: /dev/sdf version: A29A serial: 001520J9J2ZA 09VEJ2ZA size: 1490GiB (1600GB) capabilities: partitioned partitioned:dos configuration: ansiversion=6 logicalsectorsize=512 sectorsize=4096 signature=9f2f9b9e *-disk:7 description: ATA Disk product: ST18000NM000J-2T physical id: 0.1.0 bus info: scsi@22:0.1.0 logical name: /dev/sdg version: SN01 serial: ZR52H1YM size: 16TiB (18TB) capabilities: gpt-1.00 partitioned partitioned:gpt configuration: ansiversion=6 guid=00bc9d74-7b24-4657-b418-d8f98d64655c logicalsectorsize=512 sectorsize=4096 *-disk:8 description: SCSI Disk product: X356_S164A3T8ATE vendor: NETAPP physical id: 0.2.0 bus info: scsi@22:0.2.0 logical name: /dev/sdh version: NA03 serial: S5JFNE0N307472 size: 3576GiB (3840GB) capabilities: gpt-1.00 partitioned partitioned:gpt configuration: ansiversion=7 guid=7850f3cd-99a0-4ebb-9c47-49642a1727b6 logicalsectorsize=512 sectorsize=4096 *-disk:9 description: SCSI Disk product: X356_S164A3T8ATE vendor: NETAPP physical id: 0.3.0 bus info: scsi@22:0.3.0 logical name: /dev/sdi version: NA03 serial: S5JFNA0R102890 size: 3576GiB (3840GB) capabilities: gpt-1.00 partitioned partitioned:gpt configuration: ansiversion=7 guid=e5f14e89-a3a5-45f0-9692-2b46ad7c55a8 logicalsectorsize=512 sectorsize=4096 *-disk:10 description: SCSI Disk product: HSCAC2DA2SUN1.6T vendor: HGST physical id: 0.4.0 bus info: scsi@22:0.4.0 logical name: /dev/sdj version: A29A serial: 001635J9YZ4A 09WXYZ4A size: 1490GiB (1600GB) capabilities: partitioned partitioned:dos configuration: ansiversion=6 logicalsectorsize=512 sectorsize=4096 signature=9f2f9b62 *-disk description: SCSI Disk product: ProductCode vendor: VendorCo physical id: 0.0.0 bus info: scsi@0:0.0.0 logical name: /dev/sda version: 2.00 size: 117GiB (125GB) capabilities: removable configuration: ansiversion=4 logicalsectorsize=512 sectorsize=512 *-medium physical id: 0 logical name: /dev/sda size: 117GiB (125GB) capabilities: partitioned partitioned:dos *-disk:0 description: ATA Disk product: SV9SAT6B480GLM21 physical id: 0 bus info: scsi@6:0.0.0 logical name: /dev/sdb version: .1.A serial: 800A072B100802358271 size: 447GiB (480GB) capabilities: removable configuration: ansiversion=5 logicalsectorsize=512 sectorsize=512 *-medium physical id: 0 logical name: /dev/sdb size: 447GiB (480GB) capabilities: gpt-1.00 partitioned partitioned:gpt configuration: guid=58bbd4c0-cc7f-49ab-adce-3a1fbe15de8c *-disk:1 description: ATA Disk product: WDC WDBNCE0010P vendor: Western Digital physical id: 1 bus info: scsi@7:0.0.0 logical name: /dev/sdc version: 20RL serial: 214026800847 size: 931GiB (1TB) capabilities: removable configuration: ansiversion=5 logicalsectorsize=512 sectorsize=512 *-medium physical id: 0 logical name: /dev/sdc size: 931GiB (1TB) capabilities: partitioned partitioned:dos configuration: signature=9f2f9b6e
February 23, 20251 yr Author 7 hours ago, JorgeB said: Which ones are the slow ones? /dev/sdd, /dev/sde and /dev/sdn
February 24, 20251 yr Community Expert Other than the different firmware, nothing else that I can see, is it possible that some models are dual port and others not? Though that by itself should not make a difference in performance, as far as I know.
March 18, 20251 yr Author Update on this issue. When i contacted a Unraid support a while ago, they told me this issue I’m having could potentially be resolved in future versions of Unraid due to newer kernel’s being added. I installed Unraid 6.1 beta 1 yesterday and did another speed test on the drives and…… they were right. It seems linux kernel 6.12.19 might have been what I needed all along. It could have been something else I guess.
March 19, 20251 yr Community Expert It confirms it was something in the kernel, but glad to hear it's resolved.
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