Do SSD have a limited lifetime in a MBP ??

kirkster

kirkster

kirkster

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Hi, I was under the impression that a SSD had a limited life in a PC since there are a finite number of read/writes that can be done on a SSD. So the swap partition should not be on the SSD - apparently. Is this the same situation on a MAC? Or is this read/write a non issue nowadays?

Whats the best method of provisioning a SSD on a MAC?

Thanks. K
 
OS X doesn't support TRIM so theoretically it could be worse. SSDs are pretty good now with their wear levelling and lifetime.
 
With the current specification SSDs this isn't an issue. I saw calculations that said something along the lines that even if you were to complete erase and re-write to every cell on an SSD five times a day, that SSD would still last for over thirty years.

Longevity isn't an issue.

/edit - Found something.

Mtron published the details of their 32Gb SSD and quoted that if you were to overwrite the entire SSD three times per day the drive would last for over eighty five years!
 
Put it on the calculator and that would be 93075 times! Then a quick google said each cell in a drive can be overwritten 10,000 times. Never realised it was that high. :p
 
SSDs wearing out is such a crock of ****. Yes they can but they aren't likely to unless you really, really thrash your SSD all day every day.

Besides, you WANT your page/swapfile on the SSD. Even if it did shorten its life. The OS reads and writes to the pagefile a lot, so it should be on the fastest storage you have.
 
kirkster said:
Yeah, that a lot of times. But the swap file is constantly being rebuilt and torn down right? So that's loads of rewrites..

http://superuser.com/questions/51724/should-i-keep-my-swap-file-on-an-ssd-drive

Anyone read this sort of stuff?

K
Click to expand...

They're all wrong!

One guy even completely takes a quote out of context [and is called out on it]. Put your page/swap file on the SSD and enjoy the performance. You can worry about the SSD degradation if you still using your MBP 2010 next to your MBP 2035.
 
But on the other hand I've had 2 failed M225's, 2 Crucial P128s, and am currently waiting an RMA'd Vertex 2E :(:eek:
 
Do you worry about your spinning disk running out? I think not. The same applies to a solid state disk. It should last longer than you have the MacBook.
 
I worry about failure of every hard disk I own :eek: Duplicate, duplicate, upload to Mozy, shout at Mozy, cancel Mozy, move to Crashplan repeat until stress less obvious.
 
MacRS4 said:
But on the other hand I've had 2 failed M225's, 2 Crucial P128s, and am currently waiting an RMA'd Vertex 2E :(:eek:
Click to expand...

What happened to them?? My c300 is going strong after 8 months, need to do a reinstall to get some osx performance back (it hasnt liked having the motherboard changed a few weeks ago) but the drive is in perfect nic (at least under w7)
 
SiriusB said:
They're all wrong!

One guy even completely takes a quote out of context [and is called out on it]. Put your page/swap file on the SSD and enjoy the performance. You can worry about the SSD degradation if you still using your MBP 2010 next to your MBP 2035.
Click to expand...

Lol :) Indeed. For that reason I am going to get one.
 
pingwing said:
What happened to them?? My c300 is going strong after 8 months, need to do a reinstall to get some osx performance back (it hasnt liked having the motherboard changed a few weeks ago) but the drive is in perfect nic (at least under w7)
Click to expand...

Hard freeze, reboot, cannot see hard drive - in every event.

To be fair my hard drives get hammered all day everyday.. Lots of VMWare swapping about.
 
MacRS4 said:
Hard freeze, reboot, cannot see hard drive - in every event.

To be fair my hard drives get hammered all day everyday.. Lots of VMWare swapping about.
Click to expand...

Ah yeah I see what you mean there, I get the hard freeze thing if I hammer sleep a bit too much but after that it tends to recover with a reboot.

Wouldn't be surprised if a lot of vmware swapping would do something bad to it either way...

Really want TRIM to turn up at some point now
 
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