我的第一块 sdd，OCZ Vertex 3，无法再使用。启动时，bios 中显示“未找到”。不过，我又尝试了一下。我使用 SATA-to-USB3 电缆/适配器将其连接到我的 PC。
dmesg 输出
以下是 dmesg 的内容：
# USB device detected
[995674.616272] usb 2-1.4: new high-speed USB device number 5 using ehci-pci
[995674.739558] usb 2-1.4: New USB device found, idVendor=05e3, idProduct=0731
[995674.739561] usb 2-1.4: New USB device strings: Mfr=0, Product=1, SerialNumber=2
[995674.739564] usb 2-1.4: Product: USB Storage
[995674.739566] usb 2-1.4: SerialNumber: 0000000000000033
# this is where the device gets detected
[995674.740213] usb-storage 2-1.4:1.0: USB Mass Storage device detected
[995674.740451] scsi host9: usb-storage 2-1.4:1.0
[995676.205066] scsi 9:0:0:0: Direct-Access Generic USB3/SATA Bridge 9100 PQ: 0 ANSI: 5
[995676.205568] sd 9:0:0:0: Attached scsi generic sg4 type 0
[995676.208525] sd 9:0:0:0: [sdd] 0 512-byte logical blocks: (0 B/0 B)
[995676.208529] sd 9:0:0:0: [sdd] 0-byte physical blocks
[995676.210177] sd 9:0:0:0: [sdd] Test WP failed, assume Write Enabled
[995676.211910] sd 9:0:0:0: [sdd] Asking for cache data failed
[995676.211916] sd 9:0:0:0: [sdd] Assuming drive cache: write through
[995676.219509] sd 9:0:0:0: [sdd] Attached SCSI disk
看到大小了吗？它应该更像是 60 GB（而不是 GiB），而不仅仅是 0 字节。
首次尝试：Gparted
启动 gparted 时，它使用 /dev/sdd 作为参数说“未找到设备”。
然后我启动了 gparted，没有参数=>设备未列出。
第二次尝试：dd。
情况也不太好。
$ sudo dd if=/dev/zero of=/dev/sdd bs=1M
dd: error writing '/dev/sdd': No space left on device
1+0 records in
0+0 records out
0 bytes copied, 0,00073185 s, 0,0 kB/s
第三次尝试：testdisk
没有检测到。
第四次尝试：聪明
所以我想：磁盘确实被检测到了，但 0 字节意味着所有扇区都坏了？也许聪明人会告诉我。
嗯，不。
$ sudo smartctl -a /dev/sdd
smartctl 6.6 2016-05-31 r4324 [x86_64-linux-4.15.0-20-generic] (local build)
Copyright (C) 2002-16, Bruce Allen, Christian Franke, www.smartmontools.org
Read Device Identity failed: scsi error no medium present
A mandatory SMART command failed: exiting. To continue, add one or more '-T permissive' options.
$ sudo smartctl -a -T permissive /dev/sdd
smartctl 6.6 2016-05-31 r4324 [x86_64-linux-4.15.0-20-generic] (local build)
Copyright (C) 2002-16, Bruce Allen, Christian Franke, www.smartmontools.org
Read Device Identity failed: scsi error no medium present
=== START OF INFORMATION SECTION ===
Device Model: [No Information Found]
Serial Number: [No Information Found]
Firmware Version: [No Information Found]
Device is: Not in smartctl database [for details use: -P showall]
ATA Version is: [No Information Found]
Local Time is: Fri May 25 20:53:53 2018 CEST
SMART support is: Ambiguous - ATA IDENTIFY DEVICE words 82-83 don't show if SMART supported.
SMART support is: Ambiguous - ATA IDENTIFY DEVICE words 85-87 don't show if SMART is enabled.
A mandatory SMART command failed: exiting. To continue, add one or more '-T permissive' options.
$ sudo smartctl -a -T verypermissive /dev/sdd
smartctl 6.6 2016-05-31 r4324 [x86_64-linux-4.15.0-20-generic] (local build)
Copyright (C) 2002-16, Bruce Allen, Christian Franke, www.smartmontools.org
Read Device Identity failed: scsi error no medium present
=== START OF INFORMATION SECTION ===
Device Model: [No Information Found]
Serial Number: [No Information Found]
Firmware Version: [No Information Found]
Device is: Not in smartctl database [for details use: -P showall]
ATA Version is: [No Information Found]
Local Time is: Fri May 25 20:54:02 2018 CEST
SMART support is: Ambiguous - ATA IDENTIFY DEVICE words 82-83 don't show if SMART supported.
SMART support is: Ambiguous - ATA IDENTIFY DEVICE words 85-87 don't show if SMART is enabled.
Checking to be sure by trying SMART RETURN STATUS command.
SMART support is: Unknown - Try option -s with argument 'on' to enable it.
Read SMART Data failed: scsi error no medium present
=== START OF READ SMART DATA SECTION ===
SMART Status command failed: scsi error no medium present
SMART overall-health self-assessment test result: UNKNOWN!
SMART Status, Attributes and Thresholds cannot be read.
Read SMART Error Log failed: scsi error no medium present
Read SMART Self-test Log failed: scsi error no medium present
Selective Self-tests/Logging not supported
所以也没有运气……
我没办法了？把它扔进垃圾桶还是可以修好？
更新
我确定它已经无法修复了。我想已经没有办法修复它了，所以我选择了这个选项。
答案1
您的 SSD 确实坏了。即使您能以某种方式让它再次工作，它也很可能很快再次坏掉。
当您通过 USB 插入设备时，它会识别大容量存储设备的存在 - 但它会认为该设备具有 0 字节的存储容量。
您看到的是典型的 SSD 故障。