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I didn't see any mention of this yet, so I have to ask: If I use truecrypt to encrypt my SSD do I have to over-provision it by 20% in order not to kill the performance?
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# ? Aug 19, 2014 17:01 |
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# ? Jun 10, 2024 12:28 |
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Diovanti posted:I didn't see any mention of this yet, so I have to ask: If I use truecrypt to encrypt my SSD do I have to over-provision it by 20% in order not to kill the performance? Wouldn't you rather use a different encryption system that's hardware supported by your drive and OS?
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# ? Aug 19, 2014 17:04 |
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Diovanti posted:I didn't see any mention of this yet, so I have to ask: If I use truecrypt to encrypt my SSD do I have to over-provision it by 20% in order not to kill the performance?
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# ? Aug 19, 2014 17:06 |
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Diovanti posted:I didn't see any mention of this yet, so I have to ask: If I use truecrypt to encrypt my SSD do I have to over-provision it by 20% in order not to kill the performance? Do you have to use TrueCrypt? Almost all drives will self-encrypt with 128-bit or 256-bit AES if you set an ATA password. Besides that, a number of drives are compatible with TCG Opal and MS eDrive, which make the a compatible OS (like Windows 8.1) aware of the SSD's hardware encryption and delegate key management duties to the OS, rather than relying on an ATA password. The only thing TrueCrypt would add is the plausible deniability partition obfuscation thing. But yes, if you do FDE in software and need to maintain the full-disk nature of the encryption, not only does that instantly fill the drive, but TRIM won't function correctly, so you need to overprovision the drive.
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# ? Aug 19, 2014 17:15 |
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SanDisk has released the Ultra II (120-960GB), the first drive using TLC memory from a company other than Samsung. This drive is very similar to the 840 Evo, combining SanDisk's 19nm TLC NAND with an SLC caching scheme they call nCache 2.0, similar to Samsung's TurboWrite. Pricing seems to be directly targeting the Crucial MX100, so it'll be very interesting to see how performance stacks up! SanDisk also has a better track record than Crucial both with reliability and not being jerks to consumers.
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# ? Aug 19, 2014 17:33 |
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If I'm formatting my Samsung EVO 250GB SSD to reinstall Windows (my OS and programs are already on the drive), do I just do this the normal way? The drive has 20% space reserved already.
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# ? Aug 19, 2014 18:03 |
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WattsvilleBlues posted:If I'm formatting my Samsung EVO 250GB SSD to reinstall Windows (my OS and programs are already on the drive), do I just do this the normal way? The drive has 20% space reserved already.
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# ? Aug 19, 2014 18:05 |
I haven't dealt too much with Windows 8 and reinstalling the entire OS but I'd like to replace my 5400rpm drive with an SSD, but my new laptop does not have an optical drive. Is installing it from a flash drive still viable and where would I go to get a legit copy of Windows 8?
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# ? Aug 19, 2014 18:26 |
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Alereon posted:Yes. Note that you don't need to overprovision for a normal system where TRIM is working. Ah, there was a bit of to and fro about that in the last thread. I'll reprovision my drive, thanks.
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# ? Aug 19, 2014 18:36 |
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Alereon posted:Yes. Note that you don't need to overprovision for a normal system where TRIM is working. So the overprovision by 20% to increase the life and performance of the drive is only when TRIM is not enabled, and when it is it's fine to fill the thing up all the way? Because the impression I'm getting from this thread is that other than this post, everyone seems to be saying that you never want to go below 20% free space.
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# ? Aug 19, 2014 18:37 |
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Sibling of TB posted:So the overprovision by 20% to increase the life and performance of the drive is only when TRIM is not enabled, and when it is it's fine to fill the thing up all the way? Because the impression I'm getting from this thread is that other than this post, everyone seems to be saying that you never want to go below 20% free space. Overprovisioning is when you make the partition smaller than the size of the drive. This is only necessary on systems without working TRIM or on SSDs with lovely block management. Alereon fucked around with this message at 18:45 on Aug 19, 2014 |
# ? Aug 19, 2014 18:42 |
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What applications are there for not having TRIM? Mac with an aftermarket drive? XP?
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# ? Aug 19, 2014 18:44 |
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Bob Morales posted:What applications are there for not having TRIM? Mac with an aftermarket drive? XP? Also we've been back-and-forth on AHCI and TRIM a few times, but basically on Windows if AHCI isn't working either Windows won't send TRIM commands or they will be dropped by a driver or controller somewhere on the way to the drive depending on your specific configuration so it PROBABLY won't work. Alereon fucked around with this message at 18:52 on Aug 19, 2014 |
# ? Aug 19, 2014 18:48 |
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So, this happened.AnandTech posted:Back in 2011, AMD made a rather unexpected move and expanded its Radeon brand to include memory in addition to graphics cards. With today's announcement AMD is adding another member to its Radeon family by releasing Radeon R7 Series SSDs. Similar to AMD memory, AMD is not actually designing or manufacturing the SSDs as the product design and manufacturing is handled by OCZ []. In fact, all the customer support is also handled by OCZ, so aside from the AMD logo AMD is not really involved in the product. Well, marketing to morons with their $5000 fantasy libertarian dollar mining rigs worked pretty well for them before. Better add AMD to the Bad Drives list in the OP, though.
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# ? Aug 20, 2014 20:30 |
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Looks like the 250gb evos are on sale like everywhere today, including the msata model. Around $120 on Amazon and Newegg. Too lazy to copy/paste everything so go here.
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# ? Aug 20, 2014 23:18 |
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Wasn't TrueCrypt compromised and/or Officially Abandoned by the developers?
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# ? Aug 20, 2014 23:25 |
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Hadlock posted:Wasn't TrueCrypt compromised and/or Officially Abandoned by the developers? Officially abandoned, suggested (maybe) that there was an NSA backdoor, and immediately forked into a new project.
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# ? Aug 20, 2014 23:36 |
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Hadlock posted:Wasn't TrueCrypt compromised and/or Officially Abandoned by the developers? So there is really no benefit to using TrueCrypt for anyone really, and there are other tools that actually support SSDs, both via using the drive's built-in encryption or just not defeating TRIM.
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# ? Aug 20, 2014 23:42 |
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Sure, but if you use hardware encryption provided by the SSD, now you're vulnerable to attack by the Korean NSA My bitcoin I may have recently completed a stanford cryptography course
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# ? Aug 20, 2014 23:47 |
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Does the encryption offered by SSDs have any kind of performance penalty?
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# ? Aug 21, 2014 02:55 |
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Lowen SoDium posted:Does the encryption offered by SSDs have any kind of performance penalty? Alereon fucked around with this message at 03:52 on Aug 21, 2014 |
# ? Aug 21, 2014 03:04 |
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Quote is not edit!
Alereon fucked around with this message at 03:52 on Aug 21, 2014 |
# ? Aug 21, 2014 03:05 |
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Without eDrive, there's even less performance penalty - encryption-capable SSDs always encrypt. An ATA password just enables checking for the correct password hash at boot before unlocking the drive. Fun fact: A Secure Erase on some encryption-enabled drives just erases the encryption key and then issue a drive-wide TRIM.
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# ? Aug 21, 2014 03:32 |
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Is anyone doing 3rd party audits of the encryption features of SSDs?
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# ? Aug 21, 2014 16:04 |
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Hmm, I'm pretty out of date on encryption apparently. I lost faith in drive encryption after being able to defeat it with some free russian tools and an old computer (which is no longer being supported now though, but its still quite disheartening). But I had no clue about the Truecrypt thing. I don't actually need it, or even want to use it, but it's always been an appealing concept just because.
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# ? Aug 21, 2014 16:49 |
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Thermopyle posted:Is anyone doing 3rd party audits of the encryption features of SSDs? 1gnoirents posted:Hmm, I'm pretty out of date on encryption apparently. I lost faith in drive encryption after being able to defeat it with some free russian tools and an old computer (which is no longer being supported now though, but its still quite disheartening). But I had no clue about the Truecrypt thing.
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# ? Aug 21, 2014 20:59 |
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Alereon posted:While not exactly what you're looking for, Intel did an internal audit of their drives that found that only 128bits of the 256bit AES key were used, which resulted in a drive recall since they promised AES256 and only delivered AES128. That would make more sense if it weren't encrypted. The last one I remember had a screen like this I just assumed it was an encrypted drive, but I guess it was probably just a password.
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# ? Aug 21, 2014 21:04 |
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Alereon posted:While not exactly what you're looking for, Intel did an internal audit of their drives that found that only 128bits of the 256bit AES key were used, which resulted in a drive recall since they promised AES256 and only delivered AES128. Huh. That actually makes me worried about the smaller manufacturers like ADATA or whatever. I don't have a lot of confidence that they're doing good audits and then actually taking action on the results. I suppose it's possible that the encryption is entirely on whomever is providing their controllers, but I doubt it's just plug and play. The manufacturer probably has to do some not-insignificant amount of implementation. And when I say "worried", I mean in some nebulous, theoretical sense. I don't even use it.
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# ? Aug 21, 2014 21:10 |
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Thermopyle posted:That actually makes me worried about the smaller manufacturers like ADATA or whatever. I don't have a lot of confidence that they're doing good audits and then actually taking action on the results.
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# ? Aug 21, 2014 21:18 |
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dpbjinc posted:So, this happened. I doubt AMD got any money from the cryptocurrency craze, and OCZ new stuff doesn't seem so bad at the moment. We'll have to wait and see though. I'm just wondering why AMD didn't try a more prestigious OEM like
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# ? Aug 22, 2014 02:46 |
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GrizzlyCow posted:I doubt AMD got any money from the cryptocurrency craze, and OCZ new stuff doesn't seem so bad at the moment. We'll have to wait and see though. I'm just wondering why AMD didn't try a more prestigious OEM like Because no-one else wants their name attached to this horseshit
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# ? Aug 22, 2014 02:59 |
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GrizzlyCow posted:OCZ new stuff doesn't seem so bad at the moment. It's not difficult to improve on a track record like theirs. For OCZ to have a worse reputation they'd have to try and invade Ukraine and Palestine simultaneously.
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# ? Aug 22, 2014 03:07 |
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GrizzlyCow posted:I doubt AMD got any money from the cryptocurrency craze, and OCZ new stuff doesn't seem so bad at the moment. We'll have to wait and see though. I'm just wondering why AMD didn't try a more prestigious OEM like The companies making good SSDs are better brands than AMD right now and don't need to do it.
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# ? Aug 22, 2014 04:59 |
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Also, even if the OCZ SSDs are rock solid, the AMD versions are still overpriced compared to Samsung. AMD basically did it because it's free money for them.
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# ? Aug 22, 2014 05:48 |
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I was testing a laptop hard drive for bad sectors and ended up doing the 'yell at the hard drive' test I saw in a Youtube video. Check this out.. kind of shocked me how senstive spinners are. https://plus.google.com/+MichaelBruce007/posts/QzqSDVTCbwo?pid=6050106143883970290&oid=109159079222891743710
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# ? Aug 22, 2014 18:28 |
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redeyes posted:I was testing a laptop hard drive for bad sectors and ended up doing the 'yell at the hard drive' test I saw in a Youtube video. Check this out.. kind of shocked me how senstive spinners are.
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# ? Aug 22, 2014 19:16 |
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The Intel 730 Series 240GB is on sale for $170.99 for the next 72 hours. I probably wouldn't see much of a difference upgrading from a 320 Series 80GB would I? My usage is just general desktop / gaming use and I'm still stuck on SATA 3GB/s. DethMarine21 fucked around with this message at 19:41 on Aug 22, 2014 |
# ? Aug 22, 2014 19:33 |
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redeyes posted:I was testing a laptop hard drive for bad sectors and ended up doing the 'yell at the hard drive' test I saw in a Youtube video. Check this out.. kind of shocked me how senstive spinners are.
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# ? Aug 22, 2014 19:35 |
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DethMarine21 posted:The Intel 730 Series 240GB is on sale for $170.99 for the next 72 hours. Here is a benchmark comparison between the Samsung 840 Evo 500GB and the Intel SSD 730 480GB, and that doesn't even really show the advantages the 840 Evo has for typical desktop workloads. Here's a similar comparison between the Intel SSD 530 240GB and Intel SSD 730 480GB, and the 530 is at a disadvantage because they are testing the larger model 730. Overall the 530 is a faster drive, and both exhibit excellent performance consistency. Edit: Oh and for good measure, here's the Intel SSD 320 160GB versus the Samsung 840 Evo 250GB, again that's actually a faster drive than yours since it's twice the capacity, but it still gets beaten down by the Samsung 840 Evo, even taking into account that it will be handicapped by the SATA300 bus in your system. The biggest benefit is the additional capacity though, not the raw performance. Alereon fucked around with this message at 20:16 on Aug 22, 2014 |
# ? Aug 22, 2014 19:59 |
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# ? Jun 10, 2024 12:28 |
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Great info, thanks!
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# ? Aug 22, 2014 20:07 |