Is it safe to use a Intel ssd on Lion?

I have two SSD'S, Is it safe to use a Intel SSD as a usb time macine back up drive and another Intel SSD for Lion?...Thank's.

It probably will not be an issue but the 'brick' will get very warm if you are using heavyweight applications. If so, best to put it on a non insulating surface (which a rug is not).
Ciao.

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Is it safe to use vmware fusion on osx lion

i was thinking to install vmware fusion so that i could use some windows software which are not available for mac.So should i install it,will it cause any harm to my system??pls help!

JoeyR wrote:
If your question is regarding the safety of running Windows on your system via Fusion, this is not an issue. When you run Windows via virtualization (Fusion, Parallels, VirtualBox), it does not have the ability to install any sort of malware or virus in OS X.
That's not the main threat with virtualizers. Many VMs allow you to designate folders on your Mac that are shared so that both Mac and Windows apps can open the same folder of docs. This is very useful in passing documents between Mac and Windows. But if your Windows virtual machine gets one of those viruses that likes to wipe out folders, it could potentially corrupt or wipe out the files in folders shared with the Mac side. For example you would never want to give a Windows virtual machine access to your Mac user library or system files. If you must share a Mac folder with Windows, try to keep the scope of it limited and contained. While the Windows malware would not be able to run on Mac OS X, it would not be necessary for it to, if a poorly configured virtual machine allows it to write over folders shared with the Mac and trash Mac files in the process.
The other possible threat to your Mac is that many virtualizers install kernel extensions. This is not malware, but that kind of software operates at such a low level that if it is buggy, it could destabilize your Mac system. It's a good idea to check both VM reviews and their support forums to make sure the VM you choose to use is known to be stable. Most are, but sometimes, with a major upgrade, the .0 version may have bugs that need a .1 update to fix them, just as it is with Mac OS X itself.

Intel SSD 320 Series Unreliability, Intel or OSX Lion at fault?

Hi,
I have been using the Intel SSD 320 Series 160Gb SSD in a Quad Core iMac for a couple of months.
Its was running fine all through the Lion Beta program, but Monday evening, my iMac with OSX Lion locked up and I had to power off the system (that never happens to my Mac normally).
On rebooting, I got the flashing folder with a question mark, signifying no devices with a valid OS were detected
The following morning, I had to replace the SSD with a 1TB platter drive and restore my system (thank god for Time Machine).
Disk Utility repoerts the SSD as 8.4Mb in size (no, thats not a typo) and thinks the drive is unformatted.
This is very disappointing, so much for hoping SSD would be more reliable than mechanical drives
I loved the speed of the SSD, but this type of failure whether its Intel's fault or OSX causing this catestrophic failure I am still unsure, but either way its totally un-acceptable and has made me wary of wanting to try again with SSD!
D.

To help future users searching, I have an update.
This appears to be a bug in the Intel 320 Series SSD drives which Intel have acknowledged.
I applaud them for owning up to the problem, but I am furious they let a product of this type get to market with a serious bug like this in the first place!!
If anyone is using one of these drives I suggest you make sure your Time Machine backups are running fine and are up-to-date and constantly check out the link below for a firmware update that at the time of writing has still not materialised.
Rest assured, you have a ticking time bomb on your hands!
http://communities.intel.com/message/133505
http://www.techpowerup.com/149064/Intel-Acknowledges-SSD-320-Series-8-MB-Bug-.ht ml

Is it now safe to use an SSD with a X-Fi?

My on-board sound is pretty weak so I thought about getting an X-FI because you can find lots of them on ebay for a good price, soundcard tech didn't change much in the last few years and I still have an PCI slot.
This system has 16 GB RAM, Windows 7 64 bit and a SSD. A bit of googling reveals that such a configuration appears to generate lots of problems for the X-FI (disappearing soundcard from the device manager?)
So what's your advice guys? Has this problem been fixed by Creative or a third party and is it now safe to use X-FIs with such a config?

No, it's not safe. The disappearing X-Fi bug is still happening. My X-Fi Titanium HD disappeared on a z97 based system with 16GB of RAM and Samsung 840 Pro SSDs (Win 7). Switching over to the trusty STX now. it's a pity, because I can't get anything close to decent sound from old OpenAL games like UT2004 without a proper Creative chip.

Firefox is already running, but is not responding. To open a new window, you must first close the existing Firefox process, or restart your system. I have a wndiws 7 system and use a Intel core processor. I have restarted several times and still ge this

Firefox is already running, but is not responding. To open a new window, you must first close the existing Firefox process, or restart your system. I have a wndows 7 system and use a Intel core processor. I have restarted several times and still ge this error. I have also tried to reinstall firefox and get the same error
== This happened ==
Every time Firefox opened
== today ==
== User Agent ==
Mozilla/4.0 (compatible; MSIE 8.0; Windows NT 6.1; Trident/4.0; SLCC2; .NET CLR 2.0.50727; .NET CLR 3.5.30729; .NET CLR 3.0.30729; Media Center PC 6.0; MDDS; InfoPath.2; .NET4.0C; AskTbUT2V5/5.8.0.12304)

'''Kill Application'''
In Task Manager, does firefox.exe show in the '''Processes''' tab?
See: [http://kb.mozillazine.org/Kill_application Kill Application]
'''Causes and solutions for Firefox hanging at exit:'''
[[Firefox hangs]]
[http://kb.mozillazine.org/Firefox_hangs#Hang_at_exit Firefox hangs at exit]
[[Firefox is already running but is not responding]]
'''Safe Mode'''
You may need to use '''[[Safe Mode]]''' (click on "Safe Mode" and read) to localize the problem. Firefox Safe Mode is a diagnostic mode that disables Extensions and some other features of Firefox. If you are using a theme, switch to the DEFAULT theme: Tools > Add-ons > Themes '''before''' starting Safe Mode. When entering Safe Mode, do not check any items on the entry window, just click "Continue in Safe Mode". Test to see if the problem you are experiencing is corrected.
See:
'''[[Troubleshooting extensions and themes]]'''
'''[[Troubleshooting plugins]]'''
'''[[Basic Troubleshooting]]'''
If the problem does not occur in Safe-mode then disable all of your Extensions and Plug-ins and then try to find which is causing it by enabling '''one at a time''' until the problem reappears. '''You MUST close and restart Firefox after EACH change''' via File > Restart Firefox (on Mac: Firefox > Quit). You can use "Disable all add-ons" on the Safe mode start window.

Intel SSD 530 240gb - 17" late 2011 Macbook Pro

I was given a new in the bag Intel SSD 530 240gb
I have a 17" late 2011 Macbook Pro..
I can afford to buy another brand and sell this one online/ebay...
Am I asking for problems installing and using this? My laptop is the core of my business so I need stability.
I have not only a timecapsul backup but also a daily copy clone to a internal hard drive in my MB too..
If I choose not to use it is the general consensus Samsung the most Mac compatible.
I'm in Bali and so warrantee follow up is a nightmare..
Thanks in advance..

I do not have experience with the Intel SSD's but I also heard of some problems (that you can solve with a firmware update, which is not easy to do).
I would go for the lowest risk and buy Crucial SSD.
Samsung is NOT the most compatible for Mac, it is as compatible as most other brands. The disadvantage in the Samsung SSD's is that it does not have the best diskcontroller. Crucial has the Marvell controller which is by far better.
I have experience with Samsung, Crucial, Micron (same as Crucial), Mercure. They all work well, with the best experience with Crucial. About 10 MacbookPros upgraded to SSD.
Lex

Lenonvo T440 with Intel SSD SC2BF240A4L - failing to install apps via SCCM 2012 task sequence

Hi there
Wondering if anyone else has encountered this issue with a T440 with Intel SSD hard disk.
Our firm purchased two Lenovo T440 laptops. One has a magnetic hard disk, the other a SSD hard disk. Here are the models:
SSD hard disk: Intel SSDSC2BF240A4L
Magnetic hard disk: 500Gb 7200rpm HTS725050A7E635
We deploy our Windows 7 build via a SCCM 2012 task sequence.
Building the T440 with the magnetic hard disk was trouble free. I built it repeatedly, and encountered no errors; our core applications installed successfully every time and the task sequence completed successfully every time.
All well and good.
Building the T440 with the Intel SSD hard disk has been frustrating. When I run the task sequence on this machine, 8 times out of 10 the task sequence will fail, either stopping abruplty at installing Oracle Single-Sign On or Appsense agents. When the task sequence fails it is ALWAYS at one of these two apps.
Frustratingly, sometimes the task sequence will complete successfully on this T440.
Given we successfully deploy this task sequence to a variety of different hardware from different vendors, including other Lenovo laptops, I can only guess the Intel SSD hard disk is the culprit.
Has anyone encountred anything like this? I've went through the smsts.log file and other SCCM log files and can find nothing obvious. That this ONLY happens on the T440 with the SSD suggests to me the issues lies in that direction.
I'll swap disks in either T440 to see if the other T440 fails also with the SSD aboard, to see what happens.
Meantime if anyone has any information about this issue I'd be grateful if you coud share.
Thanks
CT

Does the install provide any logging? Does execmgr.log show any other info?
Per the readme, it should be setup.exe.
http://download.lenovo.com/ibmdl/pub/pc/pccbbs/mobiles/girc15ww.txt
Unattended Install
This is for system administrators' use only.
1. Refer to the Manual Install section, and download and extract the file.
2. In the step 11 of the Installing files section, uncheck the checkbox next
to "Install ..... now", and then select Finish to cancel installation.
3. At the command line, execute Setup.exe with the -s option.
Example: [Path where the files were extracted]\Setup -s
Daniel Ratliff | http://www.PotentEngineer.com

Seritek 2EN2 + Intel SSD's + eSATA Extender?

I am going to be setting up a new boot volume for my Mac Pro most likely consisting of 2 x 80GB Intel X25-M SSD's in a RAID 0 stripe. I am still exploring options on how to configure this along with my other data volumes and am wondering if anyone has any experience with any of the following configurations.
1. *Seritek 2EN2 Enclosure* [http://eshop.macsales.com/item/Firmtek/SATA2EN2> + *Newer Tech eSATA Extender* [http://eshop.macsales.com/item/Newer%20Technology/MPQXES2>
My first question with this setup is will the Seritek 2EN2 enclosure accept the 2.5" SSD drives? I know from these forums that the VelociRaptors are not supported. I'm curious if using the Intel-provided 3.5" bay adapters with the Seritek trays will work properly. If Firmtek can confirm or deny this that would be very helpful.
Secondly, I don't believe the Seritek 2EN2 is a port multiplier, so there shouldn't be any foreseeable performance hit using this with the 2 SSD's as they will each be on their own channel. Is this correct?
Lastly, I prefer to boot from this and I'm curious if anyone regularly boots from the 2 extra ODD SATA ports on the logic board. Any downsides or problems?
What's nice about this setup is it frees up the 4 internal bays for a fast RAID 0 data volume.
Note: I also have a Sonnet Tempo E4P card installed with a SeriTek 5PM connected and this setup has been flawless. Firmtek is a bit pricey but high-quality in my experience.
2. *MaxConnect 2.5" Drive Sled for Mac Pro* [http://www.maxupgrades.com/istore/index.cfm?fuseaction=Product.display&product _id=180] [http://bilsta57.com/?p=1266]
This looks like a nice solution and definitely has the easiest install process, simply replacing the existing drive sleds in the Mac Pro. The downside is, using 2 SSD's in a RAID 0 stripe will eat up 2 of the internal bays. I am considering this option especially if I end only using 1 of the SSD's as the boot drive in my Mac Pro and possibly using the other SSD in my MBP instead.
3. *MaxConnect Optical Bay Kit* [http://www.maxupgrades.com/istore/index.cfm?fuseaction=Product.display&product _id=188]
As far as I can tell, this 2.5" kit will mount 2 or 4 SSD's in the lower optical bay position. I would have to give up my second optical drive with this solution. I'm assuming that the 2 SSD's would still connect to the 2 ODD ports on the logic board. It seems like routing the SATA cables from the logic board up to the optical bay could be a PITA. Also, event though I'd be running SSD drives, I wonder about cooling and ventilation as I don't think there are any fans up there.
Anybody using any of these solutions in their MP? Any advice or comments?
Finally, can anyone comment on using a single Intel X25-M 80GB SSD as their boot drive vs. striping two together in RAID 0? I'm still a bit on the fence on this point. A single SSD is going to smoke my current solution and I'm wondering if 2 in RAID 0 is overkill or really noticeably better in real-world experience.
Cheers!

seems like routing the SATA cables from the logic board up to the optical bay could be a PITA. Also, event though I'd be running SSD drives, I wonder about cooling and ventilation as I don't think there are any fans up there.
A fan sits behind the optical bay. Getting to the ODD ports is easier than you imagine:
http://www.xlr8yourmac.com/tips/MacProHD_in_optical_drive_bay/MacPro_HD_inOpticalBay.html
This is more specific to CalDigit installation, but covers your basic idea:
http://www.caldigit.com/RAIDCardDemo6.asp

Intel SSD in MacBook Pro

Hi everyone,
I have a Macbook Pro 15, mid-2009. I put a SSD in it. However, it's getting slow gradually. My question is how to restore the Intel SSD performance like brand-new. Please as specific as possible, thank you.

How long have you had the drive?
How hard do you use it?
How do you know its slower – through everyday usage or through benchmark tests?
This is the issue with SSDs - they slow down over time. Its the way they store and then remove data. Basically, when you delete something, its marked as deleted but not actually removed from the disk. Hence, next time you write data to them particular memory blocks, it needs to wipe the old data and replace it with the new, which takes a little more time.
There is a feature called TRIM, which basically runs when the drive is idle, and sets about 'cleaning up' the disk so that its ready to be written on, and hence faster.
However, firstly your SSD must support TRIM, and your OS must also support TRIM. Currently the only OS that supports TRIM is Windows 7, unfortunately. It seems that with the recent 10.4.6 update, TRIM support is being added to Snow Leopard as it is listed in the system properties, but its not actually 'switched on' yet. Maybe Apple haven’t quite got the full functionality going yet......
SSDs come with an ‘Indilinx’ controller built into them. This is a slightly older controller, which needs TRIM since, as you’ve noticed, the drive tends to slow down over time.
However, newer, and more expensive SSDs, are being released with a new ‘SandForce’ controller. There is secrecy around how this controller works, but its reported to do the TRIM feature on-the-fly – so it doesn’t suffer from slow down issues. I have a Vertex 2 SSD, which has the SandForce controller, and although I haven’t had it very long, its as fast as when I first installed it, and it should stay very close to this speed, as other people who have SandForce drives have noticed with their benchmarks.
The only way to speed up you drive to how it was when new, at the moment, is to use a tool to perform a clean reformat (a normal format wont do). You’ll need to search Google for a tool that does this with SSDs as I haven’t looked into any. The downside is that you obviously need to reinstall everything from scratch afterwards – hence it comes down to whether you can be bother to go through the procedure. Your SSD should still be much faster then a HDD even in its ‘slow state’.
http://discussions.apple.com/thread.jspa?threadID=2458214

Windows 7 does not recognize second Intel SSD on W701

Hello,
I recently added a second Intel SSD to my W701. Windows 7 shows the new SSD in the Hardware Manager but W7 does not assign a logical drive number to the new SSD. The new SSD does not appear in My Computer.
Do I need to format the new SSD?
If so, how do I force W7 to format the new SSD?
And why didn't W7 format the new SSD when it was discovered by the Hardware Manager?
Thank you

Windows never formats a drive without explicit user instructions.
In the Start search, type in "Create and format hard disk partitions" and use Disk Management to assign a drive letter.
W520: i7-2720QM, Q2000M at 1080/688/1376, 21GB RAM, 500GB + 750GB HDD, FHD screen
X61T: L7500, 3GB RAM, 500GB HDD, XGA screen, Ultrabase
Y3P: 5Y70, 8GB RAM, 256GB SSD, QHD+ screen

Has anyone tried to use the Intel 750 PCIe AIC in a Z640 Workstation

I am really only interested in using this as a second disc , not the main OS Boot disk; as I have heard there could be a problem having the right NVMe Bios or UEFI .
I was advised by a reseller not to do this as HP tested recommended discs for heat generation and airflow. But that seemed strange, as one can have 2 Nvidia K2200s in the chassis and they each max at 68 watts, and each PCIe slot has a max limit of 75 watts. So surely using the Intel 750 which has a max power consumption of 24 watts should generate a lot less heat?
That assumes my mikey mouse knowledge of physics is watt equate to heat generation or are SSDs different?
I could understand it if the Intels were say 68 watts - i.e. It could then be down to cooling airflow. Or is the intelligent cooling system advised of known components and therefore reacts differently i.e. Maybe boosts the fan speed or something.
Hence would love to hear from anyone who has actually done it - how did it work out? Or someone who really understand these boxes at a deep technical level, who could rationalise why this is not a good thing ........ Other than the HP reseller doesnt sell the Intel 750s but does sell the overpriced, relatively speaking underperforming Z Turbo drives.

I have not done this but did look after Macs in a class room enviroment. I think your concerns are valid, you may be making a difficult situtation worse.
If no one come back with a definite answer, you could try a small number as a pilot, and keep them on machines next to each other. That may give you a better understanding of any likey problems.
What are the the problems with the wired headphones, cable breaks? If so woud headsets with detachable cables be an easier answer?

Intel SSD Toolbox does not report expected life remaining of SSD drive

I am trying to figure out expected life remaining of my INTEL SSDSA2BW160G3L on my X220T with Intel Core i7-2640M CPU 2.80GHz and 8GM of RAM, running Win7 64bit. I have been using my X220T for over a year. It is my only computer, so it has been used continously for a year.
Yesterday I installed the Itel SSD Toolbok 3.1.5 to check my SSD drive. Although the SMART Details provide me with the raw data, the normalized scores are all 100%. The expected life remaining shown is 100%, which does not seem to make much sense after a year of use.
I ran the Lenovo Hard Drive Quick Test (http://support.lenovo.com/en_US/downloads/detail.page?&DocID=DS025445). The SMART seems to be enable and working.
I would like to know if the Intel SSD Toolbox is working properly.

billbolton wrote:
SSDs do not "wear" in the same way that a mechanical drive does. There is nothing abnormal in an SSD showing no effective wear in terms of SMART parameters after a year of typical use.
In terms of determining remaining life, SMART parameters are really only useful for that when a drive (of any sort) is starting to get near the end of its life.
Cheers,
Bill
Bill,
Are you implying there is no need for garbage collection or wear-leveling after a year or that the SSD and/or OS take care of garbage collection and wear-leveling so the user won't notice the difference after a year?
Helix: 3697 CTO.
Thinkpad user since IBM. I do not work for Lenovo or any entity working for Lenovo.

Intel SSD & Fresh Leopard Install

I have an Intel SSD arriving today. I want to install it in my Mac Pro and then install a fresh copy of Leopard. I want to completely forget about the other hard drive in the machine for now and I will disable it by physically uninstalling it. Therefore my question is:
1. If I install the new Intel SSD can I boot from the Leopard CD and perform a "fresh" install of Leopard ?
2. If so, how do I boot from the CD and is there anything else I have to do?
3. If I later want to add the original hard drive back into the Mac Pro as a storage drive, can I do that?
4. If so, how does it show up in Leopard? I am use to Windows machines; therefore will it be a separate drive?
5. If not, how will Leopard handle it and distributing the data between the SSD and the HDD?
I get the other common sense topics, like back you data up, etc...
Thanks in advance,
Mike
Message was edited by: Michael710

Unless you physically put data on a drive, nothing happens. You/we don't have the option to 'extend' a drive or have a partition mount inside a folder for insance - unless you use hard or symbolic links. But that is not something most people do or not that manner.
Most people setup with boot drive - can be any drive bay; media library drive; perhaps scratch drive or array (for CS4 editing). Maybe internal TimeMachine auto-backup (handy to have 30GB Mac OS boot volume for running maintenance and repairs - something that is done differently).
It will appear in the Finder as it would in Explorer as a drive "F" (or some letter) volume would.
Your home account is in /Users/myaccount
That can be located on a 2nd drive - page 152-3 in "Missing Manual" using Accounts control panel's advanced options to assign /Users/ to be on another volume.
Disabling swap (page file) isn't possible, and most just make sure to have more than enough RAM to never pageout - never - something no one wants to happen and different mind set.
Anything you can do to reduce I/O writes to your boot volume being SSD helps. Disable indexing (spotlight) on boot volume. Don't let CS4 use boot volume for primary scratch (true even w/o SSDs).
iTunes and other Apple and Adobe apps allow you to set default location in program preferences.
Safari - does a whole lot of writing and cache build-up of your bookmarks and web sites and stores those in your home account (denoted by the "~" tilde symbol) at
~/Library/Caches/MetaData - which I manually delete/remove from time to time though Safari has clear caches and a reset preference, it doesn't remove as much as I would - or in the past didn't. That is the type of thing that is fast on SSD but also until TRIM and scavenger is supported (SL?) it causes SSD performance to degrade.
Pairing two SSDs as boot array is easy and can be done in software (Apple Disk Utility) and no need to enter F8 or load drivers. Extreme performance of interest? Also lets you expand from 120GB to 240GB (and allow you to leave more free space as well).
So you could use two drive bays for the system. I chose to just use 10K V-Raptor as boot drive and good enough for my humble needs.
You can boot from USB and FireWire drives, as easily (not as fast!) as your internal drive bays. A feature that have on one Intel mobo but not others.
A clean install along with good maintenance and you really shouldn't need to do a again. SuperDuper and good disk repair program (we dont' rely on just fsck) should keep things working fine unless there is a software error, in which case, just RESTORE the system from last good backup. The system itself probably doesn't have significant changes for weeks. It is user data and account that needs more frequent backups.

Is disc doctor safe to use

Is Disc Doctor safe to use?

How to maintain a Mac
1. Make redundant backups, keeping at least one off site at all times. One backup is not enough. Don’t back up your backups; make them independent of each other. Don’t rely completely on any single backup method, such as Time Machine. If you get an indication that a backup has failed, don't ignore it.
2. Keep your software up to date. In the Software Update preference pane, you can configure automatic notifications of updates to OS X and other Mac App Store products. Some third-party applications from other sources have a similar feature, if you don’t mind letting them phone home. Otherwise you have to check yourself on a regular basis. This is especially important for complex software that modifies the operating system, such as device drivers. Before installing any Apple update, you must check that all such modifications that you use are compatible.
3. Don't install crapware, such as “themes,” "haxies," “add-ons,” “toolbars,” “enhancers," “optimizers,” “accelerators,” "boosters," “extenders,” “cleaners,” "doctors," "tune-ups," “defragmenters,” “firewalls,” "barriers," “guardians,” “defenders,” “protectors,” most “plugins,” commercial "virus scanners,” "disk tools," or "utilities." With very few exceptions, this stuff is useless, or worse than useless.
The more actively promoted the product, the more likely it is to be garbage. The most extreme example is the “MacKeeper” scam.
As a rule, the only software you should install is that which directly enables you to do the things you use a computer for — such as creating, communicating, and playing — and does not modify the way other software works. Use your computer; don't fuss with it.
Never install any third-party software unless you know how to uninstall it. Otherwise you may create problems that are very hard to solve.
The free anti-malware application ClamXav is not crap, and although it’s not routinely needed, it may be useful in some environments, such as a mixed Mac-Windows enterprise network.
4. Beware of trojans. A trojan is malicious software (“malware”) that the user is duped into installing voluntarily. Such attacks were rare on the Mac platform until sometime in 2011, but are now increasingly common, and increasingly dangerous.
There is some built-in protection against downloading malware, but you can’t rely on it — the attackers are always at least one day ahead of the defense. You can’t rely on third-party protection either. What you can rely on is common-sense awareness — not paranoia, which only makes you more vulnerable.
Never install software from an untrustworthy or unknown source. If in doubt, do some research. Any website that prompts you to install a “codec” or “plugin” that comes from the same site, or an unknown site, is untrustworthy. Software with a corporate brand, such as Adobe Flash Player, must be acquired directly from the developer. No intermediary is acceptable, and don’t trust links unless you know how to parse them. Any file that is automatically downloaded from a web page without your having requested it should go straight into the Trash. A website that claims you have a “virus,” or that anything else is wrong with your computer, is rogue.
In OS X 10.7.5 or later, downloaded applications and Installer packages that have not been digitally signed by a developer registered with Apple are blocked from loading by default. The block can be overridden, but think carefully before you do so.
Because of recurring security issues in Java, it’s best to disable it in your web browsers, if it’s installed. Few websites have Java content nowadays, so you won’t be missing much. This action is mandatory if you’re running any version of OS X older than 10.6.8 with the latest Java update. Note: Java has nothing to do with JavaScript, despite the similar names. Don't install Java unless you're sure you need it. Most people don't.
5. Don't fill up your boot volume. A common mistake is adding more and more large files to your home folder until you start to get warnings that you're out of space, which may be followed in short order by a boot failure. This is more prone to happen on the newer Macs that come with an internal SSD instead of the traditional hard drive. The drive can be very nearly full before you become aware of the problem. While it's not true that you should or must keep any particular percentage of space free, you should monitor your storage consumption and make sure you're not in immediate danger of using it up. According to Apple documentation, you need at least 9 GB of free space on the startup volume for normal operation.
If storage space is running low, use a tool such as the free application OmniDiskSweeper to explore your volume and find out what's taking up the most space. Move rarely-used large files to secondary storage.
6. Relax, don’t do it. Besides the above, no routine maintenance is necessary or beneficial for the vast majority of users; specifically not “cleaning caches,” “zapping the PRAM,” "resetting the SMC," “rebuilding the directory,” "defragmenting the drive," “running periodic scripts,” “dumping logs,” "deleting temp files," “scanning for viruses,” "purging memory," "checking for bad blocks," "testing the hardware," or “repairing permissions.” Such measures are either completely pointless or are useful only for solving problems, not for prevention.
The very height of futility is running an expensive third-party application called “Disk Warrior” when nothing is wrong, or even when something is wrong and you have backups, which you must have. Disk Warrior is a data-salvage tool, not a maintenance tool, and you will never need it if your backups are adequate. Don’t waste money on it or anything like it.

Intel SSD

I am a pro photog and run my main setup on a 17" MBP uni. pre i7. I had a 7200 rom drive and 8 gigs of ram and was still lagging in Aperture and the total system was running dog slow. I searched and searched and searched and everyone had mixed reviews on the best SSD. I found an intel 80gig x25m drive for $150. SO I put it in. Pre SSD it took 2 mins to boot and load all 9 of my business apps I use to run my biz. After the SSD install, I was able to boot and load all 9 apps in 39 seconds. This is on the intel drive that a lot of people talk smack on. I have to say, this drive is amazing. I also took out my dvd drive and got a bay from MCE to add a second HDD. I put my 7200 rpm 640gig drive in its place. Partitioned so 80 gigs mirrors the ssd and the rest is my additional storage for my photo work. I also bring a FW800 2T drive to backup my entire machine just in case.
So the point of my post is to let you all know the Intel SSD drive is awesome. I have had it for 3 weeks now and have seen no degradation as some claimed.

!http://images.apple.com/macpro/images/performancescreenshot_raid_120100727.png!
yah it can be twice as fast. just imagination 4 SSD in a raid in a mac pro

Is it safe to use a Intel ssd on Lion?

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