On 06/10/2010 11:19 PM, Phil Meyer wrote: > On 06/10/2010 03:56 PM, Linuxguy123 wrote: >> On Thu, 2010-06-10 at 14:50 -0700, Konstantin Svist wrote: >> >>> On 06/10/2010 01:53 PM, Linuxguy123 wrote: >>> >>>> I'm thinking of getting an Intel 160 GB SSD. How would it work under >>>> Linux ? >>>> >>>> I'm using ext4 for that drive right now. Is there a better filesystem >>>> for SSDs ? >>>> >>>> Is there anything that I should be aware of as far as switching ? >>>> >>>> >> Have you run an SSD ? Is longevity really an issue or is it folklore ? >> >> Thanks >> >> > > It is bot real and folklore! :) > > The fact is that any SSD, or other NAND type device has a limited number > of writes per address. The real question is: > > "With your data needs and patterns, will you actually need to write to > the same address over 100,000 times?" > > For most people, that is a big fat NO. The drives are smart enough to > re-arrange data around failed memory addresses. So what happens most > often is a very slight decrease in available space over time. > > The advice given is just smart, because most file systems will update > the same physical disk 'block' containing inode data whenever a file is > accessed (atime). The chances of that update hitting the exact address > every time is quite high. > > So, theoretically, if you just read a file on an SSD 100,000 times you > could destroy a single address location on the SSD. No, because all the SSDs you can buy today do some kind of wear levelling. Andrew. -- users mailing list users@xxxxxxxxxxxxxxxxxxxxxxx To unsubscribe or change subscription options: https://admin.fedoraproject.org/mailman/listinfo/users Guidelines: http://fedoraproject.org/wiki/Mailing_list_guidelines
