[SOLVED] SSD Kingston deletes files on its own

Maciek Bugajski

Reputable
Mar 20, 2015
3
0
4,510
I use Windows 10 pro, i have updated system.
I have 4 hard drives, two SSDs, one HDD and on USb. my Kingstone SV300S37A120g ( 18947hours working. Sata/600, Firmware 60AABBF0, Total Writes 17790) is used for page files, temp files and cache processes, but when i try to use it as a storage drives it periodically delete my files. Does anyone knows why and how to make it stop. Crystal Disk info shows its health as good 96% Windows check cant find any problems with this disk, but i cant try to defragment it or optimize it. That option is greyed out.

I work on my computer, as a tech artist and move around a lot of files.
Right now i have over 100gb free space, on the disk, after it itself deleted some of my work files. Before that i had somewhere between 20-50gb free

Windows SysInfo

<Moderator edit to shorten post, see spoiler>

System Information report written at: 01/16/20 21:17:06
System Name: DESKTOP-59L9TB3
[Disks]

Item Value
Description Disk drive
Manufacturer (Standard disk drives)
Model KINGSTON SV300S37A120G
Bytes/Sector 512
Media Loaded Yes
Media Type Fixed hard disk
Partitions 3
SCSI Bus 2
SCSI Logical Unit 0
SCSI Port 0
SCSI Target ID 0
Sectors/Track 63
Size 111.79 GB (120,031,511,040 bytes)
Total Cylinders 14,593
Total Sectors 234,436,545
Total Tracks 3,721,215
Tracks/Cylinder 255
Partition Disk #1, Partition #0
Partition Size 992.50 KB (1,016,320 bytes)
Partition Starting Offset 32,256 bytes
Partition Disk #1, Partition #1
Partition Size 111.79 GB (120,031,543,296 bytes)
Partition Starting Offset 1,048,576 bytes
Partition Disk #1, Partition #2
Partition Size 472.00 KB (483,328 bytes)
Partition Starting Offset 120,032,591,872 bytes

Description Disk drive
Manufacturer (Standard disk drives)
Model ST1000DM003-1ER162
Bytes/Sector 512
Media Loaded Yes
Media Type Fixed hard disk
Partitions 3
SCSI Bus 4
SCSI Logical Unit 0
SCSI Port 0
SCSI Target ID 0
Sectors/Track 63
Size 931.51 GB (1,000,202,273,280 bytes)
Total Cylinders 121,601
Total Sectors 1,953,520,065
Total Tracks 31,008,255
Tracks/Cylinder 255
Partition Disk #2, Partition #0
Partition Size 450.00 MB (471,859,200 bytes)
Partition Starting Offset 1,048,576 bytes
Partition Disk #2, Partition #1
Partition Size 100.00 MB (104,857,600 bytes)
Partition Starting Offset 472,907,776 bytes
Partition Disk #2, Partition #2
Partition Size 930.96 GB (999,609,597,952 bytes)
Partition Starting Offset 594,542,592 bytes

Description Disk drive
Manufacturer (Standard disk drives)
Model Samsung SSD 860 EVO 250GB
Bytes/Sector 512
Media Loaded Yes
Media Type Fixed hard disk
Partitions 1
SCSI Bus 0
SCSI Logical Unit 0
SCSI Port 0
SCSI Target ID 0
Sectors/Track 63
Size 232.88 GB (250,056,737,280 bytes)
Total Cylinders 30,401
Total Sectors 488,392,065
Total Tracks 7,752,255
Tracks/Cylinder 255
Partition Disk #0, Partition #0
Partition Size 232.87 GB (250,041,335,808 bytes)
Partition Starting Offset 16,777,216 bytes

Description Disk drive
Manufacturer (Standard disk drives)
Model TOSHIBA External USB 3.0 USB Device
Bytes/Sector 512
Media Loaded Yes
Media Type External hard disk media
Partitions 1
SCSI Bus 0
SCSI Logical Unit 0
SCSI Port 0
SCSI Target ID 0
Sectors/Track 63
Size 931.51 GB (1,000,202,273,280 bytes)
Total Cylinders 121,601
Total Sectors 1,953,520,065
Total Tracks 31,008,255
Tracks/Cylinder 255
Partition Disk #3, Partition #0
Partition Size 931.51 GB (1,000,202,043,392 bytes)
Partition Starting Offset 1,048,576 bytes



Smartmontools log:


Device: /dev/sdb, KINGSTON SV300S37A120G, S/N:50026B725118C63B, WWN:5-0026b7-25118c63b, FW:60AABBF0, 120 GB
Device: /dev/sdb, found in smartd database: SandForce Driven SSDs
Device: /dev/sdb, can't monitor Current_Pending_Sector count - no Attribute 197
Device: /dev/sdb, no SMART Error Log, ignoring -l error (override with -T permissive)
Device: /dev/sdb, is SMART capable. Adding to "monitor" list.

HardDisk Sentiel log


The status of the solid state disk is PERFECT. Problematic or weak sectors were not found.
The TRIM feature of the SSD is supported and enabled for optimal performance.
The health is determined by SSD specific S.M.A.R.T. attribute(s): #231 SSD Life Left

No actions needed.


KingstonSSSD Manager Log

#KSM:1.1.2.3#

##### Smart Export - Kingston SSD Manager - Version 1.1.2.3 #####


Norton Drive Scan Result


Scan Statistics:
Scan Start:
Local: 16/01/2020 21:13
UTC: 16/01/2020 18:13
Scan Time: 31 seconds
Scan Targets: F:\
Counts:
Total items scanned: 31,796
- Files & Directories: 31,796
- Registry Entries: 0
- Processes & Startup Items: 0
- Network & Browser Items: 0
- Other: 0
- Trusted Files: 129
- Skipped Files: 0

Total security risks detected: 0
Total items resolved: 0
Total items that require attention: 0

Resolved Threats:
No risks have been resolved

Unresolved Threats:
No unresolved risks

Current time is: Thu Jan 16 21:07:12 2020

Device Path: \\.\PHYSICALDRIVE1
Vendor/Model: KINGSTON SV300S37A120G
Serial #: 50026B725118C63B
Firmware: 60AABBF0_33205

Id [hex] - Description:
---------------------------------------------
Norm Worst Thresh Raw Flags

======================================================

1 [0x01] - Read Error Rate:
---------------------------------------------
95 95 50 0x0000000207ab6694 0x32,SP,EC,OC

5 [0x05] - Bad Block Count:
---------------------------------------------
100 100 3 0x0000000000000000 0x33,SP,EC,OC,PW

9 [0x09] - Power On Hours:
---------------------------------------------
79 79 0 0x000ac12000004a04 0x32,SP,EC,OC

12 [0x0c] - Power Cycles:
---------------------------------------------
93 93 0 0x0000000000001f29 0x32,SP,EC,OC

171 [0xab] - Program Fail Count:
---------------------------------------------
100 100 0 0x0000000000000000 0x0a,ER,OC

172 [0xac] - Erase Fail Count:
---------------------------------------------
100 100 0 0x0000000000000000 0x32,SP,EC,OC

174 [0xae] - Unexpected Power Loss:
---------------------------------------------
0 0 0 0x0000000000001958 0x30,SP,EC

177 [0xb1] - Wear Leveling Range Percent:
---------------------------------------------
0 0 0 0x000000000000005f 0x00

181 [0xb5] - Program Fail Count:
---------------------------------------------
100 100 0 0x0000000000000000 0x0a,ER,OC

182 [0xb6] - Erase Fail Count:
---------------------------------------------
100 100 0 0x0000000000000000 0x32,SP,EC,OC

187 [0xbb] - Uncorrectable ECC Errors:
---------------------------------------------
100 100 0 0x0000000000000000 0x12,EC,OC

189 [0xbd] - Temperature (alt):
---------------------------------------------
24 45 0 0x0000000d002d0018 0x00

194 [0xc2] - Temperature:
---------------------------------------------
24 45 0 0x0000000d002d0018 0x22,SP,OC

195 [0xc3] - RAISE Recovered:
---------------------------------------------
120 120 0 0x0000000207ab6694 0x1c,EC,ER,PE

196 [0xc4] - Reallocation Events:
---------------------------------------------
100 100 3 0x0000000000000000 0x33,SP,EC,OC,PW

201 [0xc9] - Uncorrectable Soft ECC Rate:
---------------------------------------------
120 120 0 0x0000000207ab6694 0x1c,EC,ER,PE

204 [0xcc] - Soft ECC Correction Rate:
---------------------------------------------
120 120 0 0x0000000207ab6694 0x1c,EC,ER,PE

230 [0xe6] - Drive Life Protection Status:
---------------------------------------------
100 100 0 0x0000000000000064 0x13,EC,OC,PW

231 [0xe7] - SSD Wear Indicator:
---------------------------------------------
96 96 11 0x0000000000000001 0x00

233 [0xe9] - Lifetime Nand Writes:
---------------------------------------------
0 0 0 0x00000000000053ce 0x32,SP,EC,OC

234 [0xea] - Lifetime Host Writes:
---------------------------------------------
0 0 0 0x00000000000044a2 0x32,SP,EC,OC

241 [0xf1] - Lifetime Host Writes:
---------------------------------------------
0 0 0 0x00000000000044a2 0x32,SP,EC,OC

242 [0xf2] - Lifetime Host Reads:
---------------------------------------------
0 0 0 0x000000000000457e 0x32,SP,EC,OC

244 [0xf4] - SSD Wear Indicator:
---------------------------------------------
95 95 10 0x000000000bb900a6 0x00

##### Standardized Values ######

TBW = 17TB


##### SMART Status ######

Offline Data Collection Status = 0
Self-test Execution Status = 0
Offline Data Collection Capability = 125
SMART Capability = 3
Error Logging Capability = 1
Short Self-Test Polling Time = 1M
Extended Self-Test Polling Time = 48M
Conveyance Self-Test Polling Time = 2M
SMART Checksum = 216


######### Health Scan #########

Fatal Events: 0
Critical Events: 0
Notifications: 0



######### Misc #########

Dev State 1: 0x2


########## Identify Device ##########
0 [0x00]: 0x0c5a
1 [0x01]: 0x3fff
2 [0x02]: 0xc837
3 [0x03]: 0x0010
4 [0x04]: 0x0000
5 [0x05]: 0x0000
6 [0x06]: 0x003f
7 [0x07]: 0x0000
8 [0x08]: 0x0000
9 [0x09]: 0x0000
10 [0x0a]: 0x3530
11 [0x0b]: 0x3032
12 [0x0c]: 0x3642
13 [0x0d]: 0x3732
14 [0x0e]: 0x3531
15 [0x0f]: 0x3138
16 [0x10]: 0x4336
17 [0x11]: 0x3342
18 [0x12]: 0x2020
19 [0x13]: 0x2020
20 [0x14]: 0x0000
21 [0x15]: 0x0000
22 [0x16]: 0x0004
23 [0x17]: 0x3630
24 [0x18]: 0x4141
25 [0x19]: 0x4242
26 [0x1a]: 0x4630
27 [0x1b]: 0x4b49
28 [0x1c]: 0x4e47
29 [0x1d]: 0x5354
30 [0x1e]: 0x4f4e
31 [0x1f]: 0x2053
32 [0x20]: 0x5633
33 [0x21]: 0x3030
34 [0x22]: 0x5333
35 [0x23]: 0x3741
36 [0x24]: 0x3132
37 [0x25]: 0x3047
38 [0x26]: 0x2020
39 [0x27]: 0x2020
40 [0x28]: 0x2020
41 [0x29]: 0x2020
42 [0x2a]: 0x2020
43 [0x2b]: 0x2020
44 [0x2c]: 0x2020
45 [0x2d]: 0x2020
46 [0x2e]: 0x2020
47 [0x2f]: 0x8001
48 [0x30]: 0x4000
49 [0x31]: 0x2f00
50 [0x32]: 0x4001
51 [0x33]: 0x0200
52 [0x34]: 0x0200
53 [0x35]: 0x0007
54 [0x36]: 0x3fff
55 [0x37]: 0x0010
56 [0x38]: 0x003f
57 [0x39]: 0xfc10
58 [0x3a]: 0x00fb
59 [0x3b]: 0x0101
60 [0x3c]: 0x4bb0
61 [0x3d]: 0x0df9
62 [0x3e]: 0x0000
63 [0x3f]: 0x0007
64 [0x40]: 0x0003
65 [0x41]: 0x0078
66 [0x42]: 0x0078
67 [0x43]: 0x0078
68 [0x44]: 0x0078
69 [0x45]: 0x0f08
70 [0x46]: 0x0000
71 [0x47]: 0x0000
72 [0x48]: 0x0000
73 [0x49]: 0x0000
74 [0x4a]: 0x0000
75 [0x4b]: 0x001f
76 [0x4c]: 0x950e
77 [0x4d]: 0x0006
78 [0x4e]: 0x004c
79 [0x4f]: 0x0040
80 [0x50]: 0x01fc
81 [0x51]: 0x0110
82 [0x52]: 0x746b
83 [0x53]: 0x7569
84 [0x54]: 0x6163
85 [0x55]: 0x7429
86 [0x56]: 0xb449
87 [0x57]: 0x6163
88 [0x58]: 0x207f
89 [0x59]: 0x0001
90 [0x5a]: 0x0001
91 [0x5b]: 0x00fe
92 [0x5c]: 0xfffe
93 [0x5d]: 0x0000
94 [0x5e]: 0x0000
95 [0x5f]: 0x0000
96 [0x60]: 0x0000
97 [0x61]: 0x0000
98 [0x62]: 0x0000
99 [0x63]: 0x0000
100 [0x64]: 0x4bb0
101 [0x65]: 0x0df9
102 [0x66]: 0x0000
103 [0x67]: 0x0000
104 [0x68]: 0x0000
105 [0x69]: 0x0001
106 [0x6a]: 0x4000
107 [0x6b]: 0x0000
108 [0x6c]: 0x5002
109 [0x6d]: 0x6b72
110 [0x6e]: 0x5118
111 [0x6f]: 0xc63b
112 [0x70]: 0x0000
113 [0x71]: 0x0000
114 [0x72]: 0x0000
115 [0x73]: 0x0000
116 [0x74]: 0x0000
117 [0x75]: 0x0000
118 [0x76]: 0x0000
119 [0x77]: 0x405a
120 [0x78]: 0x4018
121 [0x79]: 0x0000
122 [0x7a]: 0x0000
123 [0x7b]: 0x0000
124 [0x7c]: 0x0000
125 [0x7d]: 0x0000
126 [0x7e]: 0x0000
127 [0x7f]: 0x0000
128 [0x80]: 0x0021
129 [0x81]: 0x0000
130 [0x82]: 0x0000
131 [0x83]: 0x0000
132 [0x84]: 0x0000
133 [0x85]: 0x0000
134 [0x86]: 0x0000
135 [0x87]: 0x0000
136 [0x88]: 0x0000
137 [0x89]: 0x0000
138 [0x8a]: 0x0000
139 [0x8b]: 0x0000
140 [0x8c]: 0x0000
141 [0x8d]: 0x0000
142 [0x8e]: 0x0000
143 [0x8f]: 0x0000
144 [0x90]: 0x0000
145 [0x91]: 0x0000
146 [0x92]: 0x0000
147 [0x93]: 0x0000
148 [0x94]: 0x0000
149 [0x95]: 0x0000
150 [0x96]: 0x0000
151 [0x97]: 0x0000
152 [0x98]: 0x0000
153 [0x99]: 0x0000
154 [0x9a]: 0x0000
155 [0x9b]: 0x0000
156 [0x9c]: 0x0000
157 [0x9d]: 0x0000
158 [0x9e]: 0x0000
159 [0x9f]: 0x0000
160 [0xa0]: 0x0000
161 [0xa1]: 0x0000
162 [0xa2]: 0x0000
163 [0xa3]: 0x0000
164 [0xa4]: 0x0000
165 [0xa5]: 0x0000
166 [0xa6]: 0x0000
167 [0xa7]: 0x0000
168 [0xa8]: 0x0000
169 [0xa9]: 0x0001
170 [0xaa]: 0x0000
171 [0xab]: 0x0000
172 [0xac]: 0x0000
173 [0xad]: 0x0000
174 [0xae]: 0x0000
175 [0xaf]: 0x0000
176 [0xb0]: 0x0000
177 [0xb1]: 0x0000
178 [0xb2]: 0x0000
179 [0xb3]: 0x0000
180 [0xb4]: 0x0000
181 [0xb5]: 0x0000
182 [0xb6]: 0x0000
183 [0xb7]: 0x0000
184 [0xb8]: 0x0000
185 [0xb9]: 0x0000
186 [0xba]: 0x0000
187 [0xbb]: 0x0000
188 [0xbc]: 0x0000
189 [0xbd]: 0x0000
190 [0xbe]: 0x0000
191 [0xbf]: 0x0000
192 [0xc0]: 0x0000
193 [0xc1]: 0x0000
194 [0xc2]: 0x0000
195 [0xc3]: 0x0000
196 [0xc4]: 0x0000
197 [0xc5]: 0x0000
198 [0xc6]: 0x0000
199 [0xc7]: 0x0000
200 [0xc8]: 0x0000
201 [0xc9]: 0x0000
202 [0xca]: 0x0000
203 [0xcb]: 0x0000
204 [0xcc]: 0x0000
205 [0xcd]: 0x0000
206 [0xce]: 0x0025
207 [0xcf]: 0x0000
208 [0xd0]: 0x0000
209 [0xd1]: 0x4000
210 [0xd2]: 0x0000
211 [0xd3]: 0x0000
212 [0xd4]: 0x0100
213 [0xd5]: 0x0000
214 [0xd6]: 0x0000
215 [0xd7]: 0x0000
216 [0xd8]: 0x0000
217 [0xd9]: 0x0001
218 [0xda]: 0x0000
219 [0xdb]: 0x0000
220 [0xdc]: 0x0000
221 [0xdd]: 0x0000
222 [0xde]: 0x103f
223 [0xdf]: 0x0000
224 [0xe0]: 0x0000
225 [0xe1]: 0x0000
226 [0xe2]: 0x0000
227 [0xe3]: 0x0000
228 [0xe4]: 0x0000
229 [0xe5]: 0x0000
230 [0xe6]: 0x4bb0
231 [0xe7]: 0x0df9
232 [0xe8]: 0x0000
233 [0xe9]: 0x0000
234 [0xea]: 0x0000
235 [0xeb]: 0x0000
236 [0xec]: 0x0000
237 [0xed]: 0x0000
238 [0xee]: 0x0000
239 [0xef]: 0x0000
240 [0xf0]: 0x0000
241 [0xf1]: 0x0000
242 [0xf2]: 0x0000
243 [0xf3]: 0x0000
244 [0xf4]: 0x0000
245 [0xf5]: 0x0000
246 [0xf6]: 0x0000
247 [0xf7]: 0x0000
248 [0xf8]: 0x0000
249 [0xf9]: 0x0000
250 [0xfa]: 0x0000
251 [0xfb]: 0x0000
252 [0xfc]: 0x0000
253 [0xfd]: 0x0000
254 [0xfe]: 0x0000
255 [0xff]: 0x66a5



Temperature History:
Version = 0x0002
Sampling Period = 1 Minutes
Interval = 10 Minutes
Max Continuous Threshold = 70C
Max Absolute Threshold = 85C
Min Continuous Threshold = 0C
Min Absolute Threshold = 0C
Number of entries = 478
Starting offset = 318

Hour 0.000000: 20C, 20C, 20C, 20C, 20C, 20C, 20C, 19C, 19C, 19C, 19C, 20C, 20C, 20C, 19C, 20C, 19C, 19C, 19C, 19C, 19C, 19C, 19C, 19C
Hour 4.000000: 19C, 19C, 19C, 19C, 19C, 19C, 19C, 19C, 19C, 20C, 20C, 20C, 20C, 20C, 20C, 20C, 20C, 20C, 20C, 20C, 20C, 20C, 20C, 20C
Hour 8.000000: 20C, 20C, 20C, 20C, 20C, 20C, 21C, 21C, 21C, 21C, 21C, 21C, 21C, 21C, NS, NS, 20C, 21C, 21C, 23C, 21C, 21C, 22C, 22C
Hour 12.000000: 22C, 21C, 21C, 21C, 21C, 20C, 21C, 21C, 21C, 21C, 21C, 21C, 21C, 21C, 21C, 21C, 21C, 21C, 20C, 20C, 20C, 20C, 21C, 20C
Hour 16.000000: 21C, 20C, 20C, 21C, 20C, 20C, 20C, 20C, 21C, 21C, 21C, 21C, 21C, 21C, 22C, 21C, 21C, 21C, 22C, 22C, 22C, 22C, 22C, 21C
Hour 20.000000: 21C, 21C, 21C, 21C, 21C, 21C, 21C, 21C, 21C, 21C, 21C, 21C, 22C, 21C, 21C, 21C, 22C, 21C, 22C, 21C, 21C, 22C, NS, NS
Hour 24.000000: NS, NS, 22C, 22C, 22C, 23C, 23C, 23C, 23C, 23C, 23C, 23C, 23C, 23C, 23C, 23C, 23C, 23C, 23C, 23C, 24C, 24C, 24C, 23C
Hour 28.000000: 23C, 23C, 23C, 23C, 23C, 23C, 23C, 23C, 24C, 24C, 23C, 24C, 24C, 23C, 24C, 24C, 24C, 24C, 24C, 24C, 24C, 24C, 24C, 24C
Hour 32.000000: 24C, 24C, 24C, 24C, 24C, 24C, 24C, 24C, 24C, 24C, 24C, 24C, 24C, 24C, 24C, NS, NS, 21C, 23C, 23C, 23C, 23C, 23C, 23C
Hour 36.000000: 23C, 23C, 23C, 23C, 23C, 23C, 23C, 21C, 23C, 23C, 23C, 23C, 23C, 24C, 24C, 24C, 24C, 24C, 24C, 24C, 24C, 24C, 24C, 24C
Hour 40.000000: 24C, 23C, 23C, 23C, NS, NS, NS, NS, 23C, 24C, 24C, 24C, 24C, 24C, 24C, 24C, 24C, 24C, 24C, 24C, 24C, 24C, 24C, 24C
Hour 44.000000: 24C, 24C, 24C, 28C, 24C, 24C, 24C, NS, NS, NS, NS, 23C, NS, NS, 24C, 24C, 24C, 24C, 24C, 24C, 24C, 24C, 24C, 24C
Hour 48.000000: 24C, 24C, 24C, 24C, 24C, 24C, 24C, 24C, 24C, 24C, 24C, 25C, 25C, 25C, 25C, 25C, 25C, 30C, 30C, 25C, 25C, 25C, 25C, 25C
Hour 52.000000: 25C, 25C, 25C, 25C, 25C, 25C, 24C, 25C, NS, NS, 22C, 20C, 20C, 20C, 22C, 22C, 23C, 23C, 23C, 23C, 24C, 24C, 24C, 24C
Hour 56.000000: 24C, 23C, 23C, 23C, 23C, 23C, 23C, 23C, 23C, 23C, 23C, 23C, 23C, 23C, 23C, NS, NS, 23C, 22C, 22C, 22C, 22C, 22C, 22C
Hour 60.000000: 22C, 22C, 22C, 22C, 22C, 22C, 22C, 22C, 22C, 22C, 22C, 22C, 22C, 22C, 22C, 22C, 22C, 22C, 23C, 23C, 23C, 23C, 24C, 23C
Hour 64.000000: 23C, 23C, 23C, 23C, 23C, 23C, 23C, 23C, 23C, 23C, 23C, 23C, 23C, 23C, 23C, 24C, 23C, 24C, 24C, 24C, 24C, 24C, 24C, 24C
Hour 68.000000: 24C, NS, NS, 21C, 22C, 23C, 23C, 23C, 23C, 23C, 23C, 23C, 22C, 22C, 22C, 22C, 22C, 22C, 22C, 22C, 22C, 26C, 25C, 23C
Hour 72.000000: 22C, 22C, 22C, 22C, 25C, 26C, 25C, 23C, 23C, 23C, 23C, 24C, 23C, 24C, 24C, 24C, 23C, 24C, 23C, 23C, 23C, 23C, 23C, 23C
Hour 76.000000: 23C, 23C, 23C, 23C, 23C, 23C, 23C, 23C, 24C, 24C, 24C, 23C, 23C, 24C, 23C, 23C, 23C, 24C, 24C, 24C, 24C, 24C
 
Last edited by a moderator:
Solution
Kingston V300. You have the infamous version that was known for the bait-and-switch fiasco, utilizing the SandForce SF-2281 controller no doubt. This controller relies on compression which is unusual nowadays. In any case, I would advise backing up its data and engaging in a secure erase. These drives tend to have MLC and a relatively good write amplification factor (WAF) due to compression - this technology is now used in Seagate's enterprise SSDs - so you probably had mapping corruption at some point due to power loss or a PC crash. A secure erase will wipe the mapping table.
Kingston V300. You have the infamous version that was known for the bait-and-switch fiasco, utilizing the SandForce SF-2281 controller no doubt. This controller relies on compression which is unusual nowadays. In any case, I would advise backing up its data and engaging in a secure erase. These drives tend to have MLC and a relatively good write amplification factor (WAF) due to compression - this technology is now used in Seagate's enterprise SSDs - so you probably had mapping corruption at some point due to power loss or a PC crash. A secure erase will wipe the mapping table.
 
Solution