I have a VMware ESX 4.1 Update 1 server (underlying hardware is a Cisco UCS C210) to which I have connected two WD My Book 1130 drives. I have allocated both drives to my FreeBSD RELENG_8 VM (amd64). At boot time, I see: Root mount waiting for: usbus1 usb_alloc_device: set address 2 failed (USB_ERR_TIMEOUT, ignored) Root mount waiting for: usbus1 Root mount waiting for: usbus1 Root mount waiting for: usbus1 Root mount waiting for: usbus1 Root mount waiting for: usbus1 Root mount waiting for: usbus1 Root mount waiting for: usbus1 Root mount waiting for: usbus1 Root mount waiting for: usbus1 Root mount waiting for: usbus1 Root mount waiting for: usbus1 usbd_req_re_enumerate: addr=2, set address failed! (USB_ERR_TIMEOUT, ignored) Root mount waiting for: usbus1 Root mount waiting for: usbus1 Root mount waiting for: usbus1 Root mount waiting for: usbus1 Root mount waiting for: usbus1 Root mount waiting for: usbus1 Root mount waiting for: usbus1 Root mount waiting for: usbus1 Root mount waiting for: usbus1 Root mount waiting for: usbus1 Root mount waiting for: usbus1 usbd_req_re_enumerate: addr=2, set address failed! (USB_ERR_TIMEOUT, ignored) Root mount waiting for: usbus1 Root mount waiting for: usbus1 Root mount waiting for: usbus1 Root mount waiting for: usbus1 Root mount waiting for: usbus1 Root mount waiting for: usbus1 Root mount waiting for: usbus1 Root mount waiting for: usbus1 Root mount waiting for: usbus1 ugen1.2: <Unknown> at usbus1 (disconnected) uhub_reattach_port: could not allocate new device Root mount waiting for: usbus1 Root mount waiting for: usbus1 usb_alloc_device: set address 2 failed (USB_ERR_TIMEOUT, ignored) Root mount waiting for: usbus1 Root mount waiting for: usbus1 Root mount waiting for: usbus1 Root mount waiting for: usbus1 Root mount waiting for: usbus1 Root mount waiting for: usbus1 Root mount waiting for: usbus1 Root mount waiting for: usbus1 Root mount waiting for: usbus1 Root mount waiting for: usbus1 Root mount waiting for: usbus1 usbd_req_re_enumerate: addr=2, set address failed! (USB_ERR_TIMEOUT, ignored) Root mount waiting for: usbus1 Root mount waiting for: usbus1 Root mount waiting for: usbus1 Root mount waiting for: usbus1 Root mount waiting for: usbus1 Root mount waiting for: usbus1 Root mount waiting for: usbus1 Root mount waiting for: usbus1 Root mount waiting for: usbus1 Root mount waiting for: usbus1 Root mount waiting for: usbus1 usbd_req_re_enumerate: addr=2, set address failed! (USB_ERR_TIMEOUT, ignored) Root mount waiting for: usbus1 Root mount waiting for: usbus1 Root mount waiting for: usbus1 Root mount waiting for: usbus1 Root mount waiting for: usbus1 Root mount waiting for: usbus1 Root mount waiting for: usbus1 Root mount waiting for: usbus1 Root mount waiting for: usbus1 Root mount waiting for: usbus1 ugen1.2: <Unknown> at usbus1 (disconnected) uhub_reattach_port: could not allocate new device However, once FreeBSD is fully booted, I can unattach then reattach the drives (though VIC), and they attach just fine: ugen1.2: <Western Digital> at usbus1 umass0: <Western Digital My Book 1130, class 0/0, rev 2.10/10.12, addr 2> on usbus1 umass0: SCSI over Bulk-Only; quirks = 0x0000 umass0:1:0:-1: Attached to scbus1 da1 at umass-sim0 bus 0 scbus1 target 0 lun 0 da1: <WD My Book 1130 1012> Fixed Direct Access SCSI-6 device da1: 40.000MB/s transfers da1: 1907697MB (3906963456 512 byte sectors: 255H 63S/T 243197C) ses0 at umass-sim0 bus 0 scbus1 target 0 lun 1 ses0: <WD SES Device 1012> Fixed Enclosure Services SCSI-6 device ses0: 40.000MB/s transfers ses0: SCSI-3 SES Device ugen1.3: <Western Digital> at usbus1 umass1: <Western Digital My Book 1130, class 0/0, rev 2.10/10.12, addr 3> on usbus1 umass1: SCSI over Bulk-Only; quirks = 0x0000 umass1:2:1:-1: Attached to scbus2 da2 at umass-sim1 bus 1 scbus2 target 0 lun 0 da2: <WD My Book 1130 1012> Fixed Direct Access SCSI-6 device da2: 40.000MB/s transfers da2: 1907697MB (3906963456 512 byte sectors: 255H 63S/T 243197C) ses1 at umass-sim1 bus 1 scbus2 target 0 lun 1 ses1: <WD SES Device 1012> Fixed Enclosure Services SCSI-6 device ses1: 40.000MB/s transfers ses1: SCSI-3 SES Device I'm running FreeBSD RELENG_8 from Sat Jul 2 17:40:20 EDT 2011. I had an older Maxtor drive connected to this VM previously, and it was working fine. These WD drives are USB 3, but operating under USB 2 mode. Any advice? Thanks. Joe -- Joe Marcus Clarke FreeBSD GNOME Team :: gnome@FreeBSD.org FreeNode / #freebsd-gnome http://www.FreeBSD.org/gnome