troubleshooting Question

/dev/sdd not found

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santoshmotwaniFlag for Australia asked on
Linux OS DevLinux Distributions
10 Comments3 Solutions655 ViewsLast Modified:
Hi experts,

i have couple of USB drives connected to production server. One of them suddenly stopped with i/o error. i tried to umount it but it was busy, so i switched off power and unplugged it.

i connected another drive not i cant find /dev/sdd. i tried ./MAKEDEV sdd no result.

here is my dmesg & /var/log/messages.

/var/log/messages :

Sep 29 12:14:47 mail kernel: [49507435.660000] usb 2-8: USB disconnect, address 9
Sep 29 12:15:23 mail kernel: [49507471.940000] usb 2-1: new high speed USB device using ehci_hcd and address 10
Sep 29 12:15:23 mail kernel: [49507472.090000] scsi8 : SCSI emulation for USB Mass Storage devices
Sep 29 12:15:28 mail kernel: [49507477.110000]   Vendor: SAMSUNG   Model: HD501LJ           Rev:
Sep 29 12:15:28 mail kernel: [49507477.110000]   Type:   Direct-Access                      ANSI SCSI revision: 02
Sep 29 12:15:28 mail kernel: [49507477.120000] SCSI device sdd: 976773168 512-byte hdwr sectors (500108 MB)
Sep 29 12:15:28 mail kernel: [49507477.120000] SCSI device sdd: 976773168 512-byte hdwr sectors (500108 MB)
Sep 29 12:15:28 mail kernel: [49507477.120000]  sdd: sdd1
Sep 29 12:15:28 mail kernel: [49507477.130000] sd 8:0:0:0: Attached scsi disk sdd
Sep 29 12:15:28 mail kernel: [49507477.130000] sd 8:0:0:0: Attached scsi generic sg3 type 0


DMEsG:

[49507471.940000] usb 2-1: new high speed USB device using ehci_hcd and address 10
[49507472.090000] scsi8 : SCSI emulation for USB Mass Storage devices
[49507472.090000] usb-storage: device found at 10
[49507472.090000] usb-storage: waiting for device to settle before scanning
[49507477.110000]   Vendor: SAMSUNG   Model: HD501LJ           Rev:
[49507477.110000]   Type:   Direct-Access                      ANSI SCSI revision: 02
[49507477.120000] SCSI device sdd: 976773168 512-byte hdwr sectors (500108 MB)
[49507477.120000] sdd: assuming drive cache: write through
[49507477.120000] SCSI device sdd: 976773168 512-byte hdwr sectors (500108 MB)
[49507477.120000] sdd: assuming drive cache: write through
[49507477.120000]  sdd: sdd1
[49507477.130000] sd 8:0:0:0: Attached scsi disk sdd
[49507477.130000] sd 8:0:0:0: Attached scsi generic sg3 type 0
[49507477.130000] usb-storage: device scan complete


lsusb :

Bus 002 Device 002: ID 04fc:0c25 Sunplus Technology Co., Ltd
Bus 002 Device 003: ID 1058:1001 Western Digital Technologies, Inc.
Bus 002 Device 005: ID 1058:1100 Western Digital Technologies, Inc.
Bus 002 Device 004: ID 0d49:7410 Maxtor
Bus 002 Device 001: ID 0000:0000
Bus 001 Device 001: ID 0000:0000


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