Overclock.net › Forums › Industry News › Hardware News › [TGD] Report: SSDs "difficult" to securely erase
New Posts  All Forums:Forum Nav:

[TGD] Report: SSDs "difficult" to securely erase - Page 6

post #51 of 78
Hrmmm, this makes full-drive encryption seem much better for SSDs.
Micro Dance
(8 items)
 
  
CPUMotherboardGraphicsRAM
i7-4790k z97i-plus EVGA GTX980 SC 16GB Team Xtreme 2400 
Hard DriveCoolingOSCase
512GB Samsung SSD 830 NH-L12 Windows 10 EVGA Hadron Air 
  hide details  
Reply
Micro Dance
(8 items)
 
  
CPUMotherboardGraphicsRAM
i7-4790k z97i-plus EVGA GTX980 SC 16GB Team Xtreme 2400 
Hard DriveCoolingOSCase
512GB Samsung SSD 830 NH-L12 Windows 10 EVGA Hadron Air 
  hide details  
Reply
post #52 of 78
SandForce newest controller supports AES-256.
Once again...
(13 items)
 
  
CPUMotherboardGraphicsRAM
i7 920 [4.28GHz, HT] Asus P6T + Broadcom NetXtreme II VisionTek HD5850 [900/1200] + Galaxy GT240 2x4GB G.Skill Ripjaw X [1632 MHz] 
Hard DriveOSMonitorKeyboard
Intel X25-M 160GB + 3xRAID0 500GB 7200.12 Window 7 Pro 64 Acer H243H + Samsung 226BW XARMOR-U9BL  
PowerCaseMouseMouse Pad
Antec Truepower New 750W Li Lian PC-V2100 [10x120mm fans] Logitech G9 X-Trac Pro 
  hide details  
Reply
Once again...
(13 items)
 
  
CPUMotherboardGraphicsRAM
i7 920 [4.28GHz, HT] Asus P6T + Broadcom NetXtreme II VisionTek HD5850 [900/1200] + Galaxy GT240 2x4GB G.Skill Ripjaw X [1632 MHz] 
Hard DriveOSMonitorKeyboard
Intel X25-M 160GB + 3xRAID0 500GB 7200.12 Window 7 Pro 64 Acer H243H + Samsung 226BW XARMOR-U9BL  
PowerCaseMouseMouse Pad
Antec Truepower New 750W Li Lian PC-V2100 [10x120mm fans] Logitech G9 X-Trac Pro 
  hide details  
Reply
post #53 of 78
Does this wear levelling issue affect cell phones also? Don't they use NAND flash also?
Ryzen
(12 items)
 
  
CPUMotherboardGraphicsRAM
Ryzen 7 1700 Gigabyte GA-AB350M Gaming 3 Palit GT-430 Corsair Vengeance LPX CMK16GX4M2B3000C15 
Hard DriveCoolingOSMonitor
Samsung 850 EVO AMD Wraith Spire Linux Mint 18.x Dell UltraSharp U2414H 
KeyboardPowerCaseMouse
Apple Basic Keyboard Thermaltake ToughPower 850W Lian-Li PC-A04B Logitech Trackman Wheel 
  hide details  
Reply
Ryzen
(12 items)
 
  
CPUMotherboardGraphicsRAM
Ryzen 7 1700 Gigabyte GA-AB350M Gaming 3 Palit GT-430 Corsair Vengeance LPX CMK16GX4M2B3000C15 
Hard DriveCoolingOSMonitor
Samsung 850 EVO AMD Wraith Spire Linux Mint 18.x Dell UltraSharp U2414H 
KeyboardPowerCaseMouse
Apple Basic Keyboard Thermaltake ToughPower 850W Lian-Li PC-A04B Logitech Trackman Wheel 
  hide details  
Reply
post #54 of 78
Quote:
Originally Posted by RonindeBeatrice View Post
Because of the drives firmware and wear leveling, it's entirely possible that a SSD would section off some of your used cells and never use them again.

The drives have available (for their own uses), more space than they make present to the host controller.
Quote:
Originally Posted by dealio View Post
the way SSD work (wear leveling, etc..) it never really erases anything. data just gets moved around and maybe overwritten (or not)
Quote:
Originally Posted by SgtSpike View Post
Makes sense - I hadn't thought about the built-in overprovisioning of some drives.

Really, firmware should just have a built-in function for securely erasing data. Call the function, wait for it to finish, have a nice day.

Until then, I'd recommend the hammer method if you're really that concerned. Ocean or pool wouldn't be safe - the data is on the chips, and those chips are fairly well protected from water, unless they are left in there for a long time. Someone could just solder the chips onto a new identical board, and read away.

If I could see each NAND chip in pieces though, I'd be confident I was safe.


Exactly. I was thinking about this the other day while reading the New OCZ review on Anandtech, and while Anand didn't talk about this specifically, I had to logically conclude you can't securely erase an SSD by default.

When I read that you have X number of cycles before that particular cell can't be written to anymore, but it can still be read for about 2 years, that is a dangerous thing, because all those cells cannot be erased anymore and will keep whatever was the last data on them.

In this case the firmware should just automatically write the last time on that cell something random, and not let any personal data on it. Does it do it ? Never heard of it.

And to secure erase, the firmware should just have a mechanism whereby you could bypass the wear leveling technology and write to the whole SSD, including those areas it sets apart for garbage collecting and spare area.

I'm actually quite shocked they haven't learned anything from the privacy issues from the mechanical HDD days.
Edited by tpi2007 - 2/21/11 at 7:31pm
 
Metro 2033 review
Metro 2033
CPUMotherboardGraphicsRAM
Core i7-3820 Asus Sabertooth X79 MSI GTX 750 Ti TF Gaming 16 GB Corsair DDR3 1866 Mhz Dominator 
Hard DriveOptical DriveCoolingOS
Samsung SSD 830 128GB + WD Caviar Black 1TB Sony Optiarc DVD-RW Corsair A70 + Noiseblocker M12-P Windows 7 Home Premium 64-bit 
MonitorKeyboardPowerCase
BenQ RL2455HM Cooler Master Octane Corsair AX750 Professional Modular 80 Plus Gold Cooler Master HAF 912 Plus 
Mouse
Cooler Master Octane 
  hide details  
Reply
 
Metro 2033 review
Metro 2033
CPUMotherboardGraphicsRAM
Core i7-3820 Asus Sabertooth X79 MSI GTX 750 Ti TF Gaming 16 GB Corsair DDR3 1866 Mhz Dominator 
Hard DriveOptical DriveCoolingOS
Samsung SSD 830 128GB + WD Caviar Black 1TB Sony Optiarc DVD-RW Corsair A70 + Noiseblocker M12-P Windows 7 Home Premium 64-bit 
MonitorKeyboardPowerCase
BenQ RL2455HM Cooler Master Octane Corsair AX750 Professional Modular 80 Plus Gold Cooler Master HAF 912 Plus 
Mouse
Cooler Master Octane 
  hide details  
Reply
post #55 of 78
Office Space it.
Jane
(11 items)
 
  
CPUMotherboardGraphicsRAM
i5 750 Zotac H55ITX-C-E Sapphire 7850 4GB Corsair XMS 1333Mhz 
Hard DriveCoolingOSMonitor
Samsung F3 1TB Antec 620 Windows 7 Samsung BX2331 23" LED 
PowerCaseAudio
Silverstone 45SF 450W Silverstone SG05 Swan M10 
  hide details  
Reply
Jane
(11 items)
 
  
CPUMotherboardGraphicsRAM
i5 750 Zotac H55ITX-C-E Sapphire 7850 4GB Corsair XMS 1333Mhz 
Hard DriveCoolingOSMonitor
Samsung F3 1TB Antec 620 Windows 7 Samsung BX2331 23" LED 
PowerCaseAudio
Silverstone 45SF 450W Silverstone SG05 Swan M10 
  hide details  
Reply
post #56 of 78
Ya, I just start off with encryption - no worries.
workstation
(14 items)
 
  
CPUMotherboardGraphicsRAM
i5 2500K EVGA Z68 SLI GeForce 670 GTX G.Skill 32GB 1600Mhz 
Hard DriveCoolingOSMonitor
OCZ Agility 3 60GB Zalman arch x86_x64 U3011 + U3014 
PowerCaseMouseAudio
PCPowerCooling 860w Chenbro server G500 Asus D2X, Def Tech 5.3 
  hide details  
Reply
workstation
(14 items)
 
  
CPUMotherboardGraphicsRAM
i5 2500K EVGA Z68 SLI GeForce 670 GTX G.Skill 32GB 1600Mhz 
Hard DriveCoolingOSMonitor
OCZ Agility 3 60GB Zalman arch x86_x64 U3011 + U3014 
PowerCaseMouseAudio
PCPowerCooling 860w Chenbro server G500 Asus D2X, Def Tech 5.3 
  hide details  
Reply
post #57 of 78
haha in regular hard drives I stick a nail in it..
MuchoIdiot II
(9 items)
 
MEDIASERVER 2
(14 items)
 
 
CPUMotherboardGraphicsRAM
core i7 7700k Asus maximus IX hero Gigabyte GTX1080Ti G.SKILL TridentZ RGB Series 32GB (4 x 8GB) 288-... 
Hard DriveCoolingOSPower
Samsung 960 EVO m.2 Corsair H115i Windows 10 Pro Corsair HX1000i 
Case
Corsair 750D Airflow 
CPUMotherboardGraphicsRAM
AMD FX8350 Asus M4A785-M none 8GB DDR2 800Mhz 
Hard DriveOptical DriveCoolingOS
16x LP 2/3TB Seagate Asus External Corsair H70 Windows 10 
MonitorKeyboardPowerCase
none none Corsair TX750W Antec 1200 
MouseMouse Pad
none none 
CPUMotherboardGraphicsGraphics
Pentium 2 300Mhz pd440fx 3DFX VooDoo 2 3DFX VooDoo 
Hard DriveOptical DriveOSMonitor
Crucial C300 LightScribe DVD writer Windows 98SE Westinghouse LCM22W3 
KeyboardPowerCaseMouse
Keytronic Corsair CX500 Micron Millennia XRU Logitech PS/2 Optical mouse 
Audio
Soundblaster 16bit ISA 
  hide details  
Reply
MuchoIdiot II
(9 items)
 
MEDIASERVER 2
(14 items)
 
 
CPUMotherboardGraphicsRAM
core i7 7700k Asus maximus IX hero Gigabyte GTX1080Ti G.SKILL TridentZ RGB Series 32GB (4 x 8GB) 288-... 
Hard DriveCoolingOSPower
Samsung 960 EVO m.2 Corsair H115i Windows 10 Pro Corsair HX1000i 
Case
Corsair 750D Airflow 
CPUMotherboardGraphicsRAM
AMD FX8350 Asus M4A785-M none 8GB DDR2 800Mhz 
Hard DriveOptical DriveCoolingOS
16x LP 2/3TB Seagate Asus External Corsair H70 Windows 10 
MonitorKeyboardPowerCase
none none Corsair TX750W Antec 1200 
MouseMouse Pad
none none 
CPUMotherboardGraphicsGraphics
Pentium 2 300Mhz pd440fx 3DFX VooDoo 2 3DFX VooDoo 
Hard DriveOptical DriveOSMonitor
Crucial C300 LightScribe DVD writer Windows 98SE Westinghouse LCM22W3 
KeyboardPowerCaseMouse
Keytronic Corsair CX500 Micron Millennia XRU Logitech PS/2 Optical mouse 
Audio
Soundblaster 16bit ISA 
  hide details  
Reply
post #58 of 78
Quote:
Originally Posted by DayzaStarr View Post
Good thing I only have mine for my OS and games All the pr0n goes on the HDD which is easy to get rid of. Now once they start coming out with cheap 256Gb+ drives I might start to worry about this
Worry now, because your pr0n file names are probably all over your OS drive in the form of logs and or other file types. You realize the names get stored there, don't you? Media player history? VLC player history? Utorrent file logs in the Program Files folder. Stuff like that.
My System
(13 items)
 
  
CPUMotherboardGraphicsRAM
[Intel Core i7] [*T] [Intel iGPU] [*] 
Hard DriveOSMonitorKeyboard
[*] [Windows 7 Professional 64-bit] [Samsung SyncMaster P2770FH 27" 1080P] [Logitech MK320 cordless] 
PowerCaseMouse
[Corsair AX1200] [Corsair Obsidian 800D] [Logitech MK300 cordless] 
  hide details  
Reply
My System
(13 items)
 
  
CPUMotherboardGraphicsRAM
[Intel Core i7] [*T] [Intel iGPU] [*] 
Hard DriveOSMonitorKeyboard
[*] [Windows 7 Professional 64-bit] [Samsung SyncMaster P2770FH 27" 1080P] [Logitech MK320 cordless] 
PowerCaseMouse
[Corsair AX1200] [Corsair Obsidian 800D] [Logitech MK300 cordless] 
  hide details  
Reply
post #59 of 78
Quote:
Originally Posted by Ikrin View Post
Crazy British.

As a home user, I'm not entirely sure at what point you would really even be needing to throw out an SSD just because you can't secure erase it. I don't know that SSDs are really necessary for enterprise use. How fast do they need to read or write data? I'm sure a solution will become available before they're widely adopted.
On the contrary, the first implementation of SSDs I ever seen was almost 2 years ago. They were being used in the laptops of Merck drug reps that visited doctors offices. The reason they used SSDs wasn't necessarily for speed, but for better data security, since SSDs do not fail quickly in the traditional sense.

Quote:
Originally Posted by djsi38t View Post
When I perform a secure erase it only takes a second.Zap and it's all gone,just like new.

Uh or is it?Sure runs like new.
You can check it with a raw data of hex editor to be sure. That is how I found out my Secure Erase failed.
Edited by PhillyOverclocker - 2/22/11 at 5:59am
My System
(17 items)
 
  
CPUMotherboardGraphicsGraphics
AMD Phenom II X4 955  Gigabyte GA-MA790XT-UD4P Sapphire HD 6950 Sapphire HD 6950 
RAMHard DriveHard DriveOptical Drive
G-Skill Mushkin Callisto Deluxe WD Black LG Supermulti 
CoolingOSKeyboardPower
Rasa Black CPU water block. Rasa X20 pump/res c... Windows 7 Ultimate x64 Deck Legend Fire mechanical with Cherry Black s... Cooler Master Silent Pro Gold 1200W modular PSU. 
CaseMouseAudio
Cooler Master Storm Scout Logitech MX-518 Logitech Wireless headset for gaming and 100w M... 
  hide details  
Reply
My System
(17 items)
 
  
CPUMotherboardGraphicsGraphics
AMD Phenom II X4 955  Gigabyte GA-MA790XT-UD4P Sapphire HD 6950 Sapphire HD 6950 
RAMHard DriveHard DriveOptical Drive
G-Skill Mushkin Callisto Deluxe WD Black LG Supermulti 
CoolingOSKeyboardPower
Rasa Black CPU water block. Rasa X20 pump/res c... Windows 7 Ultimate x64 Deck Legend Fire mechanical with Cherry Black s... Cooler Master Silent Pro Gold 1200W modular PSU. 
CaseMouseAudio
Cooler Master Storm Scout Logitech MX-518 Logitech Wireless headset for gaming and 100w M... 
  hide details  
Reply
post #60 of 78
Quote:
Originally Posted by i7monkey View Post
Worry now, because your pr0n file names are probably all over your OS drive in the form of logs and or other file types. You realize the names get stored there, don't you? Media player history? VLC player history? Utorrent file logs in the Program Files folder. Stuff like that.
You ever drag a photo from a website in firefox and drop it into a folder in your harddrive? You should have a look in your C:/users/*username*/appdata/local/temp directory. Even when running in privacy mode, Firefox forgets to clean up after itself it seems.

    
CPUMotherboardGraphicsRAM
Xeon E5645 Asus Rampage II Gene eVGA GTX460 SSC 3x4GB Corsair Dominator PC3-12800 
Hard DriveHard DriveHard DriveOS
Crucial C300 64GB Seagate Momentus XT 750 Western Digital GP 2TB EARS Windows 7 Premium 
MonitorKeyboardPowerCase
Asus VE278Q DSI SMK-88 Seasonic X-660 Lian Li U6B 2011 SE 
MouseMouse Pad
Logitech G500 KAI.g3 HIEN - HARD 
  hide details  
Reply
    
CPUMotherboardGraphicsRAM
Xeon E5645 Asus Rampage II Gene eVGA GTX460 SSC 3x4GB Corsair Dominator PC3-12800 
Hard DriveHard DriveHard DriveOS
Crucial C300 64GB Seagate Momentus XT 750 Western Digital GP 2TB EARS Windows 7 Premium 
MonitorKeyboardPowerCase
Asus VE278Q DSI SMK-88 Seasonic X-660 Lian Li U6B 2011 SE 
MouseMouse Pad
Logitech G500 KAI.g3 HIEN - HARD 
  hide details  
Reply
New Posts  All Forums:Forum Nav:
  Return Home
  Back to Forum: Hardware News
Overclock.net › Forums › Industry News › Hardware News › [TGD] Report: SSDs "difficult" to securely erase