I'm running VMware Workstation 12.5.1, and have set SCSI0:0 as an SSD drive by adding the following to my .vmx file: scsi0:0.virtualSSD = 1 /sys/block/sda/queue/rotational still contains "1" whereas I would expect it to contain 0. However running: smartctl -a /dev/sda I get the output I expect: ============================================================================ smartctl 6.2 2013-07-26 r3841 [x86_64-linux-3.16.0-38-generic] (local build) Copyright (C) 2002-13, Bruce Allen, Christian Franke, www.smartmontools.org === START OF INFORMATION SECTION === Vendor: VMware, Product: VMware Virtual S Revision: 1.0 User Capacity: 274,877,906,944 bytes [274 GB] Logical block size: 512 bytes Rotation Rate: Solid State Device Device type: disk Local Time is: Tue Oct 25 08:35:07 2016 ICT SMART support is: Unavailable - device lacks SMART capability. === START OF READ SMART DATA SECTION === Error Counter logging not supported Device does not support Self Test logging ============================================================================ Some dmesg output: ============================================================================ [manjaro@manjaro tmp]$ dmesg | grep -ie scsi -e sda [ 4.490157] Block layer SCSI generic (bsg) driver version 0.4 loaded (major 250) [ 4.763300] SCSI subsystem initialized [ 4.991978] scsi host0: ioc0: LSI53C1030 B0, FwRev=01032920h, Ports=1, MaxQ=128, IRQ=17 [ 5.084180] scsi host1: ata_piix [ 5.085081] scsi 0:0:0:0: Direct-Access VMware, VMware Virtual S 1.0 PQ: 0 ANSI: 2 [ 5.085090] scsi target0:0:0: Beginning Domain Validation [ 5.086814] scsi target0:0:0: Domain Validation skipping write tests [ 5.086817] scsi target0:0:0: Ending Domain Validation [ 5.086892] scsi target0:0:0: FAST-40 WIDE SCSI 80.0 MB/s ST (25 ns, offset 127) [ 5.088013] scsi host2: ata_piix [ 5.397024] scsi 2:0:0:0: CD-ROM NECVMWar VMware IDE CDR10 1.00 PQ: 0 ANSI: 5 [ 5.403576] sd 0:0:0:0: [sda] 536870912 512-byte logical blocks: (275 GB/256 GiB) [ 5.403627] sd 0:0:0:0: [sda] Write Protect is off [ 5.403632] sd 0:0:0:0: [sda] Mode Sense: 61 00 00 00 [ 5.403708] sd 0:0:0:0: [sda] Cache data unavailable [ 5.403711] sd 0:0:0:0: [sda] Assuming drive cache: write through [ 5.405064] sr 2:0:0:0: [sr0] scsi3-mmc drive: 1x/1x writer dvd-ram cd/rw xa/form2 cdda tray [ 5.405346] sr 2:0:0:0: Attached scsi CD-ROM sr0 [ 5.407349] sd 0:0:0:0: [sda] Attached SCSI disk [ 15.276077] sd 0:0:0:0: Attached scsi generic sg0 type 0 [ 15.276166] sr 2:0:0:0: Attached scsi generic sg1 type 5 [38725.554302] sda: sda1 sda2 sda3 [41306.674972] sda: sda1 sda2 sda3 [41413.106577] sda: sda1 sda2 sda3 [41414.101146] sda: sda1 sda2 sda3 [41505.132751] sda: sda1 sda2 sda3 [46753.312102] sda: sda1 sda2 sda3 sda4 [46754.313643] sda: sda1 sda2 sda3 sda4 [69218.476786] sda: sda1 sda2 sda3 sda4 [75137.997042] sda: sda1 sda2 sda3 sda4 [76189.464141] sda: sda1 sda2 sda3 sda4 [83174.415633] psmouse serio_raw soundcore battery nfit parport_pc parport vmwgfx ttm acpi_cpufreq tpm_tis tpm drm_kms_helper drm evdev processor ac syscopyarea sysfillrect sysimgblt fb_sys_fops vmw_vmci i2c_piix4 shpchp mac_hid sch_fq_codel ip_tables x_tables overlay squashfs isofs loop hid_generic usbhid hid sr_mod cdrom sd_mod ata_generic pata_acpi uhci_hcd atkbd libps2 crc32c_intel ata_piix ehci_pci ehci_hcd mptspi scsi_transport_spi libata usbcore mptscsih e1000 usb_common mptbase scsi_mod intel_agp intel_gtt i8042 serio fjes button [83834.506828] psmouse serio_raw soundcore battery nfit parport_pc parport vmwgfx ttm acpi_cpufreq tpm_tis tpm drm_kms_helper drm evdev processor ac syscopyarea sysfillrect sysimgblt fb_sys_fops vmw_vmci i2c_piix4 shpchp mac_hid sch_fq_codel ip_tables x_tables overlay squashfs isofs loop hid_generic usbhid hid sr_mod cdrom sd_mod ata_generic pata_acpi uhci_hcd atkbd libps2 crc32c_intel ata_piix ehci_pci ehci_hcd mptspi scsi_transport_spi libata usbcore mptscsih e1000 usb_common mptbase scsi_mod intel_agp intel_gtt i8042 serio fjes button [manjaro@manjaro tmp]$ ============================================================================ Also raised (with no response) at: https://communities.vmware.com/message/2628725#2628725 http://superuser.com/questions/1139128/emulate-ssd-drive-in-vmware-workstation-12 https://forum.manjaro.org/t/ssd-detected-by-smartctl-but-queue-rotational-1/11507