Solid State Disk, a generic term for computer storage devices that have no moving parts and do not involve a "hard disk". A hard disk, in contrast, is a device incorporating a spinning platter or platters that store information magnetically.

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45
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Can I make a DIY Fusion Drive?

I have a Mac Mini with two drives: a 256GB SSD and a 500GB HDD. From what I've read, the new Fusion Drive does all of it's magic in software, using the Core Storage APIs. Can I get my setup to ...
32
votes
13answers
36k views

Why would I disable swap file in Mac OS X?

I came across a thread about installing an SSD drive in MacBook Pro. Someone in the comments also recommended to disable the swap file but didn't say why: sudo launchctl unload -w ...
26
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3answers
8k views

How to securely erase an SSD drive?

I'm pretty new to SSD technology, so I don't know how it compares to hard drives when it comes to securely erasing the drive. Is it enough to run Disk Utility and erase the drive with the option ...
26
votes
3answers
8k views

Optimize macbook pro for internal SSD+HDD drives

I upgraded my MacBook Pro by replacing the SuperDrive with an SSD. I'm now using the SSD as the boot volume and have all my applications. My home folder is on the HDD. My question is how to best ...
23
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7answers
37k views

Is there a way to securely erase an SSD on my MacBook Air?

I have a late 2011 MacBook Air with an SSD and Lion. I used it for a while and then I activated File Vault 2. Now the data is encrypted, but I need to securely erase it so I can sell the computer. I ...
18
votes
4answers
12k views

MBP SSD upgrade - which settings to change?

After replacing the harddisk drive in MacBook Pro with a Solid State Disk I am wondering which settings I should change and how. Thinking of things that are supposed to protect the SSD like ...
18
votes
7answers
16k views

Is RAM upgrade worth it if I have an SSD already?

I recently purchased a Macbook Pro. I had an SSD from my last computer which I formatted, installed into my Mac, and used as my one and only HD (I don't need that much space so I didn't opt to do the ...
17
votes
5answers
2k views

Does the use of SSD give one a dramatic performance boost?

I use Mac book pro 15", and it's time to buy a new one. For HDD, now I see a new option of SSD, which is pretty expensive. I can expect shorter boot-up time and faster access of files, but I'm not ...
16
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3answers
32k views

Does FileVault encryption slow read/write access on an SSD?

Never fancied enabling FileVault on previous Macs but now I'm running OS X on an SSD. Is there a noticeable decrease in speed?
16
votes
2answers
13k views

Will changing my harddrive to a SSD void my MBP 2011 warranty?

I want to upgrade my harddrive to a SSD. Does apple offer this service? I was going to do it myself, since its easy. Does this void my warranty?
15
votes
5answers
10k views

Is a 3-5 second delay normal for a Retina MacBook Pro to wake up from sleep?

For 3 days, I now got a new rMBP. I am a first time Mac user. I had a friend with a MBP and it usually wakes up in a mere second, as soon as he opens the laptop's lid up. However in my Retina MBP, it ...
15
votes
1answer
1k views

Is defragmenting an SSD drive a bad idea?

I have heard that defragmenting SSD drives will shorten the life span of a drive. Just wondering if there is any truth to this and if so could someone elaborate as to why this happens.
13
votes
2answers
6k views

Do MacBook Air's SSDs fail?

I have seen many discussions describing SSD as fail-prone. I have read Jeff Atwood's warnings. Portman Wills' experiment looks alarming: Super Talent 32 GB SSD, failed after 137 days OCZ Vertex 1 ...
12
votes
1answer
4k views

Replacing SuperDrive with secondary storage?

I'm familiar with the OWC Data Doubler, a kit which allows you to remove your Macbook's SuperDrive and replace it with secondary storage. What alternatives exist for this product? A complete answer ...
12
votes
2answers
2k views

What happens at the user/OS level when an SSD finally wears out?

I have been reading up on SSD technology and don't know of any first hand reports on what happens when an SSD eventually fails due to over use. I am most interested in the SSD that apple includes as a ...
11
votes
1answer
3k views

Power Nap support

I read that Power Nap coming with Mac OS Mountain Lion will require a Mac notebooks with flash storage. Do they mean that by upgrading an early 2011 MacBook Pro to a Crucial M4 SSD would allow Power ...
11
votes
2answers
2k views

Will FileVault 2 wear out my SSD faster?

I'm considering using FileVault 2 when I upgrade to Lion. Though my understanding of it is weak, it seems as though it shouldn't really increase the number of reads or writes per disk operation ...
9
votes
9answers
10k views

What is the benefit of using flash memory in the Macbook Air?

I don't understand why Apple does not use SSD drives in the Macbook Air like some other manufacturers to (e.g. Asus, Samsung). The technical specifications of the Macbook Air on Apple's website never ...
9
votes
3answers
2k views

What happens when you remove (or lose) the SSD from a Fusion Drive?

After storing data on a Fusion Drive, is it possible to downgrade your Mac to use the hard drive (HDD) by just removing the solid state drive (SSD)? In particular, I was wondering what happens when ...
8
votes
3answers
6k views

Is the retina Macbook Pro's SSD soldered into the logic board?

The Macbook Air's SSD can be manually upgraded. The RAM of the Macbook Air and retina MBP however are soldered into the logic board. Question Is the retina Macbook Pro's SSD soldered into the logic ...
8
votes
3answers
935 views

How much data has been written to my SSD over its lifetime?

Is there a Terminal command which will show me how many GB has been written to my SSD through the whole lifetime of the disk? I'm asking because I want to find out how many cycles have been done. SSD ...
8
votes
2answers
2k views

Tool for determining performance bottleneck

I am using my early 2011 MacBook Pro for iOS development, Photoshop work, and the like, and it is at times quite sluggish. Is there a tool that I can just run for a day, and then look at the ...
7
votes
3answers
5k views

OS X lion and SSD

I recently got a Crucial M4 SSD for my mid-2009 MacBook Pro 13" (2.53 GHz). Since I paid some money, I would like to get the best performance possible out of it. Running a speed test using app store ...
7
votes
2answers
686 views

Move complete Lion installation to another physical drive

is there a way to completely move my OSX Lion to my new SSD without reinstalling? I came from Windows and Linux to OSX and i thought maybe it is possible to simply change the bootloader config after ...
7
votes
4answers
12k views

How long will an Apple SSD last?

Like all tools, an SSD will wear out from use and eventually fail. Are there data on roughly how long the SSD's that Apple ships in it's portable line last? From my research, it seems that the ...
7
votes
4answers
12k views

How to set noatime for startup drive in Mountain Lion?

I've followed instructions to set the noatime flag in Lion so I can reduce SSD usage but it isn't working for me on Mountain Lion. I'm still seeing this after restarting: $ mount | grep " / " ...
7
votes
2answers
775 views

Do the 2011 MacBook Pros support a user-installed SSD in place of the HD

On the iMac there is some thermal sensor that connects to the hard drive and makes this a bit tricky since non-Apple SSDs don't have that feature. Is this true for the 2011 MacBook Pros?
7
votes
4answers
5k views

How to store sleepimage on secondary HDD on Mac OS X 10.6?

I have a MBP 2010 with Snow Leopard on it. I put an SSD in the place of DVD Drive and am using an awesome SSD(80GB)+HDD(500GB) combo for speed and efficiency for the right price. All I want to do is ...
7
votes
2answers
880 views

How can I check the health of my SSD disk

I replaced my disk with an SSD. Smooth transition, everythng fine. Now, I want to keep the disk health checked, since I know that SSD tend to degrade over time. Which utilities can I use for this task ...
7
votes
4answers
28k views

Can I upgrade the SSD on late 2013 retina Mac Book Pro?

Do the late 2013 models (13" - (ME864LL/A, ME865LL/A, ME866LL/A), 15" - (ME293LL/A, ME294LL/A)) support after market SSD upgrades? If so, is a drive that works with the late 2012/ early 2013 rMBPs ...
7
votes
6answers
8k views

To TRIM or not to TRIM on a non Apple installed SSD in Lion

According to a source in OWC they do not recommend enabling TRIM on Mercury Extreme SSD as TRIM is only supported by Apple on Apple installed SSDs. They suggest that I am better off using the build ...
6
votes
3answers
11k views

Changing SSD's and keeping everything

I have a mid 2010 13" MBP. I have an SSD, its not big enough so I am upgrading from 128GB to 256GB. How can I take everything from the current SSD and then upload it to the new SSD - effectively ...
6
votes
4answers
3k views

Does FileVault 2 interfere with TRIM when using an SSD?

Let's assume I have an SSD that supports TRIM-supported drive, and I create a single encrypted partition that fills the entire disk (minus the obligatory GUID and recovery partitions). Is FileVault 2 ...
6
votes
3answers
2k views

How does TRIM Enabler work?

I recently bought a third part (OCZ) SSD and used Trim Enabler to, well, enable TRIM. I've noticed that some software updates can cause TRIM to be disabled, and have thus been curious about how TRIM ...
6
votes
2answers
2k views

Glitches in OS X - memory or ssd?

My laptop is Macbook pro 15', Early 2011, with an SSD drive - OCZ Agility 3 240GB. I changed my memory too to 16GB (Corsair from Amazon). I experience glitches: Also Skype refuses to launch. I ...
6
votes
2answers
9k views

Is it possible to enable TRIM for an external SSD?

I have an iMac from 2011, Mac OS X 10.6.8, and an SDD in a FW800/USB3 case. Which interface can let me enable TRIM: USB2, USB3, FW800 or Thunderbolt ?
6
votes
2answers
915 views

Mavericks frees >12GB of SSD

Something very bizarre has happened. Today I upgraded to Mavericks. Before the upgrade my 64GB SSD reported about 5GB free. After the upgrade it reports 18GB free. While this is fantastic, could ...
6
votes
4answers
1k views

How can I best use an SSD?

I have a Mac Pro, and I've added an Intel 80GB SSD to improve performance in LightRoom and Photoshop. So far so good. But after moving all of my current work, catalogs, etc. to the SSD, I still have ...
6
votes
2answers
2k views

What terminal command or program can list an SSD's Power On Hours?

I'm looking to script using the unix shell the retrieval of SSD (and HDD) data that disk utility shows in the information window. I'm immediately interested in the Power On Hours and Power Cycle, ...
6
votes
3answers
2k views

Turning off hibernate on a MacBook Pro with an SSD

I've been reading several articles on the Internet how to "optimize your Mac with an SSD". I'm not sure whether or not to agree with the articles because I think that Apple knows what's the best ...
6
votes
2answers
349 views

MBP with Mountain Lion 10.8.3 loses connection to system SSD at random times and freezes

So, out of nowhere my 2009 MacBook (2,66 GHz Core 2 Duo, 8 GByte aftermarket ram) started freezing after 200+ days of uptime (sleep time included of course). I had installed a Crucial CT256M4SSD2 ...
6
votes
1answer
2k views

Does the iPhone support TRIM for flash memory?

I'm asking if TRIM is enabled on iOS because, ever since I ran out of memory on my iPhone (have since cleared a few GB back), it seems to be slower than it was before. My suspicion being that, with ...
6
votes
0answers
244 views

Disk Utility does not show OK message after Verify Disk

Rebooted and Verified Disk twice. There is no OK message and stops here: Is it a new behaviour under Mavericks, or something wrong? How can I fix it?
6
votes
3answers
4k views

Copy Crucial SSD Firmware Update ISO to Bootable USB

I want to start with the Crucial SSD Firmware Update and copy the ISO to a bootable Mac USB stick, using a minimal set of tools. I hope that means using only built-in Mac software, such as Disk ...
5
votes
6answers
8k views

Macbook Pro Upgrade - 16GB RAM or 128GB SSD

I am asking myself which constellation is better: should I stock up my RAM up to 16GB (from 8GB), or should I buy a SSD with 128GB?? I really dont know :/ Cheers! BTW: My macbook supports 16GB ...
5
votes
4answers
1k views

Can I configure an SSD and HDD to be one logic volume in Lion?

I recently purchased a 120GB SSD that will replace my optical drive in my MBP. It also has a 500GB 7200RPM hard drive. Is it possible to have a single logical volume that uses both physical disks in ...
5
votes
4answers
15k views

Is there a utility for mac that shows the information of an SSD like the health etc…?

I am wondering if there is a utility for the mac that allows you to see the details of an SSD like the health of the drive, TBW (total bites written), how many running hours etc... In researching for ...
5
votes
2answers
4k views

is it worth it to install SSD internally, instead of using USB3?

I prefer to keep my boot drive external, so that I can quickly boot using another Mac if my primary Mac fails. I use a USB3 drive dock to connect the drive to my Macs. I bought a 120GB SSD w/SATA3 ...
5
votes
8answers
7k views

Is installing a HDD instead of SuperDrive safe?

It's pretty popular to replace ones optical drive* on the MacBook Pro with a HDD, but how serious are the risks? *In most cases, you'd do this when installing a third-party SSD, but I'd like to leave ...
5
votes
3answers
9k views

What is an SSD drive's negotiated link speed?

When I look at my Apple SSD TS256C (Toshiba) in the System Profiler on my MacBook Pro (Late 2011), I see: Link Speed: 6 Gigabit Negotiated Link Speed: 3 Gigabit Why is that? Does that mean ...