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Groups > comp.sys.mac.system > #97496
| From | Jolly Roger <jollyroger@pobox.com> |
|---|---|
| Newsgroups | comp.sys.mac.system |
| Subject | Re: How does OS-X behave with a dead SSD ? |
| Date | 2016-12-02 17:54 +0000 |
| Organization | People for the Ethical Treatment of Pirates |
| Message-ID | <eadqq4FtleiU2@mid.individual.net> (permalink) |
| References | (9 earlier) <583e6990$0$51650$c3e8da3$f6268168@news.astraweb.com> <ea7criFcocfU1@mid.individual.net> <583f46c4$0$31396$c3e8da3$dd9697d2@news.astraweb.com> <ea9a3tFqsreU1@mid.individual.net> <cbCdnXlVEtDXBt3FnZ2dnUU7-XPNnZ2d@giganews.com> |
On 2016-12-01, Alan Browne <alan.browne@freelunchvideotron.ca> wrote: > On 2016-11-30 19:44, Jolly Roger wrote: >> On 2016-11-30, JF Mezei <jfmezei.spamnot@vaxination.ca> wrote: >>> On 2016-11-30 02:19, Jolly Roger wrote: >>>> JF Mezei <jfmezei.spamnot@vaxination.ca> wrote: >>>>> On 2016-11-29 22:20, Jolly Roger wrote: >>>>> >>>>>> Time Machine to back up to two different destinations, whenever the >>>>>> SSD does crap out, replacing it will be a simple matter of replace, >>>>>> then restore. It's completely a non-issue. >>>>> >>>>> You're assuming that you will notice it crapping out. Unlike >>>>> spinning rust discs, an SSD will continue to remain readable after >>>>> writes become a problem. >>>> >>>> Irrelevant; as soon as there is an issue that prevents either reads >>>> *or* writes, the OS will say so. >>>> >>>>> But you may encounter a situation where after saving a document, the >>>>> middle 4 blocks contain invalid data because the SSD was unable to >>>>> write those 4 blocks and nobody noticed. >>>> >>>> Now you're trying to claim macOS doesn't verify data that it writes >>>> to a volume during file saves? That's not just completely false; it's >>>> laughable! >>> >>> Wow. you have little understanding of how an OS works. >> >> Your claim that an SSD write will fail without the OS or the user >> noticing is both false and idiotic. Of *course* the OS will know if a >> write fails - an error will be generated. And of *course* the user will >> be notified of the failure - an error message will be displayed on the >> screen. > > What precisely does OS X do that confirms correct recording of a sector > (or block) write? The storage device returns a success of failure on each write. The OS trusts the storage device to know whether or not the operation was successful. > Does it read the sector ( or block) back? That is > the sole way to verify to perfection that there was not a write failure. The OS trusts that the storage device was correct when it claimed the operation completed successfully. > I can't find anything online showing how OS X detects a disk write > failure. Any deep references? Meh. Not worth my time. -- E-mail sent to this address may be devoured by my ravenous SPAM filter. I often ignore posts from Google. Use a real news client instead. JR
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How does OS-X behave with a dead SSD ? JF Mezei <jfmezei.spamnot@vaxination.ca> - 2016-11-27 14:55 -0500
Re: How does OS-X behave with a dead SSD ? Jolly Roger <jollyroger@pobox.com> - 2016-11-27 20:07 +0000
Re: How does OS-X behave with a dead SSD ? JF Mezei <jfmezei.spamnot@vaxination.ca> - 2016-11-27 20:18 -0500
Re: How does OS-X behave with a dead SSD ? nospam <nospam@nospam.invalid> - 2016-11-27 20:32 -0500
Re: How does OS-X behave with a dead SSD ? JF Mezei <jfmezei.spamnot@vaxination.ca> - 2016-11-27 20:54 -0500
Re: How does OS-X behave with a dead SSD ? nospam <nospam@nospam.invalid> - 2016-11-27 20:56 -0500
Re: How does OS-X behave with a dead SSD ? Jolly Roger <jollyroger@pobox.com> - 2016-11-28 02:09 +0000
Re: How does OS-X behave with a dead SSD ? Jolly Roger <jollyroger@pobox.com> - 2016-11-28 02:05 +0000
Re: How does OS-X behave with a dead SSD ? JF Mezei <jfmezei.spamnot@vaxination.ca> - 2016-11-27 23:36 -0500
Re: How does OS-X behave with a dead SSD ? nospam <nospam@nospam.invalid> - 2016-11-28 07:31 -0500
Re: How does OS-X behave with a dead SSD ? JF Mezei <jfmezei.spamnot@vaxination.ca> - 2016-11-28 13:41 -0500
Re: How does OS-X behave with a dead SSD ? nospam <nospam@nospam.invalid> - 2016-11-28 14:32 -0500
Re: How does OS-X behave with a dead SSD ? android <here@there.was> - 2016-11-28 21:05 +0100
Re: How does OS-X behave with a dead SSD ? Jolly Roger <jollyroger@pobox.com> - 2016-11-28 20:39 +0000
Re: How does OS-X behave with a dead SSD ? JF Mezei <jfmezei.spamnot@vaxination.ca> - 2016-11-28 18:52 -0500
Re: How does OS-X behave with a dead SSD ? Jolly Roger <jollyroger@pobox.com> - 2016-11-28 23:56 +0000
Re: How does OS-X behave with a dead SSD ? Alan Browne <alan.browne@freelunchvideotron.ca> - 2016-11-28 19:06 -0500
Re: How does OS-X behave with a dead SSD ? joe <none@domain.invalid> - 2016-11-28 19:53 -0600
Re: How does OS-X behave with a dead SSD ? JF Mezei <jfmezei.spamnot@vaxination.ca> - 2016-11-28 18:30 -0500
Re: How does OS-X behave with a dead SSD ? Jolly Roger <jollyroger@pobox.com> - 2016-11-28 20:38 +0000
Re: How does OS-X behave with a dead SSD ? Jolly Roger <jollyroger@pobox.com> - 2016-11-28 20:37 +0000
Re: How does OS-X behave with a dead SSD ? Jolly Roger <jollyroger@pobox.com> - 2016-11-28 01:47 +0000
Re: How does OS-X behave with a dead SSD ? Lewis <g.kreme@gmail.com.dontsendmecopies> - 2016-11-28 06:31 +0000
Re: How does OS-X behave with a dead SSD ? JF Mezei <jfmezei.spamnot@vaxination.ca> - 2016-11-28 02:07 -0500
Re: How does OS-X behave with a dead SSD ? Lewis <g.kreme@gmail.com.dontsendmecopies> - 2016-11-29 01:40 +0000
Re: How does OS-X behave with a dead SSD ? Jim Gibson <JimSGibson@gmail.com> - 2016-11-29 14:56 -0800
Re: How does OS-X behave with a dead SSD ? nospam <nospam@nospam.invalid> - 2016-11-29 18:28 -0500
Re: How does OS-X behave with a dead SSD ? Lewis <g.kreme@gmail.com.dontsendmecopies> - 2016-11-30 00:52 +0000
Re: How does OS-X behave with a dead SSD ? Jolly Roger <jollyroger@pobox.com> - 2016-11-30 03:20 +0000
Re: How does OS-X behave with a dead SSD ? JF Mezei <jfmezei.spamnot@vaxination.ca> - 2016-11-30 00:54 -0500
Re: How does OS-X behave with a dead SSD ? Jolly Roger <jollyroger@pobox.com> - 2016-11-30 07:19 +0000
Re: How does OS-X behave with a dead SSD ? JF Mezei <jfmezei.spamnot@vaxination.ca> - 2016-11-30 16:38 -0500
Re: How does OS-X behave with a dead SSD ? Jolly Roger <jollyroger@pobox.com> - 2016-12-01 00:44 +0000
Re: How does OS-X behave with a dead SSD ? joe <none@domain.invalid> - 2016-11-30 21:11 -0600
Re: How does OS-X behave with a dead SSD ? Jolly Roger <jollyroger@pobox.com> - 2016-12-01 03:34 +0000
Re: How does OS-X behave with a dead SSD ? Lewis <g.kreme@gmail.com.dontsendmecopies> - 2016-12-01 12:55 +0000
Re: How does OS-X behave with a dead SSD ? Alan Browne <alan.browne@freelunchvideotron.ca> - 2016-12-01 16:51 -0500
Re: How does OS-X behave with a dead SSD ? JF Mezei <jfmezei.spamnot@vaxination.ca> - 2016-12-01 18:46 -0500
Re: How does OS-X behave with a dead SSD ? Alan Browne <alan.browne@freelunchvideotron.ca> - 2016-12-01 19:37 -0500
Re: How does OS-X behave with a dead SSD ? JF Mezei <jfmezei.spamnot@vaxination.ca> - 2016-12-02 00:46 -0500
Re: How does OS-X behave with a dead SSD ? nospam <nospam@nospam.invalid> - 2016-12-02 01:42 -0500
Re: How does OS-X behave with a dead SSD ? Jim Gibson <JimSGibson@gmail.com> - 2016-12-02 01:04 -0800
Re: How does OS-X behave with a dead SSD ? joe <none@domain.invalid> - 2016-12-02 08:06 -0600
Re: How does OS-X behave with a dead SSD ? Alan Browne <alan.browne@freelunchvideotron.ca> - 2016-12-03 08:50 -0500
Re: How does OS-X behave with a dead SSD ? Jolly Roger <jollyroger@pobox.com> - 2016-12-03 15:07 +0000
Re: How does OS-X behave with a dead SSD ? Jolly Roger <jollyroger@pobox.com> - 2016-12-03 15:16 +0000
Re: How does OS-X behave with a dead SSD ? Alan Browne <alan.browne@freelunchvideotron.ca> - 2016-12-03 10:57 -0500
Re: How does OS-X behave with a dead SSD ? JF Mezei <jfmezei.spamnot@vaxination.ca> - 2016-12-03 17:06 -0500
Re: How does OS-X behave with a dead SSD ? Alan Browne <alan.browne@freelunchvideotron.ca> - 2016-12-03 17:25 -0500
Re: How does OS-X behave with a dead SSD ? Jolly Roger <jollyroger@pobox.com> - 2016-12-04 00:32 +0000
Re: How does OS-X behave with a dead SSD ? JF Mezei <jfmezei.spamnot@vaxination.ca> - 2016-12-03 21:19 -0500
Re: How does OS-X behave with a dead SSD ? David Ritz <dritz@mindspring.com> - 2016-12-03 21:39 -0600
Re: How does OS-X behave with a dead SSD ? joe <none@domain.invalid> - 2016-12-03 19:41 -0600
Re: How does OS-X behave with a dead SSD ? JF Mezei <jfmezei.spamnot@vaxination.ca> - 2016-12-03 21:26 -0500
Re: How does OS-X behave with a dead SSD ? Jolly Roger <jollyroger@pobox.com> - 2016-12-04 05:59 +0000
Re: How does OS-X behave with a dead SSD ? ANTant@zimage.com (Ant) - 2016-12-04 21:48 -0600
Re: How does OS-X behave with a dead SSD ? Jolly Roger <jollyroger@pobox.com> - 2016-12-05 18:01 +0000
Re: How does OS-X behave with a dead SSD ? ANTant@zimage.com (Ant) - 2016-12-05 22:17 -0600
Re: How does OS-X behave with a dead SSD ? Alan Browne <alan.browne@freelunchvideotron.ca> - 2016-12-03 10:51 -0500
Re: How does OS-X behave with a dead SSD ? Lewis <g.kreme@gmail.com.dontsendmecopies> - 2016-12-02 10:28 +0000
Re: How does OS-X behave with a dead SSD ? Alan Browne <alan.browne@freelunchvideotron.ca> - 2016-12-03 08:48 -0500
Re: How does OS-X behave with a dead SSD ? Jolly Roger <jollyroger@pobox.com> - 2016-12-03 15:02 +0000
Re: How does OS-X behave with a dead SSD ? Jolly Roger <jollyroger@pobox.com> - 2016-12-02 17:54 +0000
Re: How does OS-X behave with a dead SSD ? Alan Baker <alangbaker@telus.net> - 2016-12-05 00:08 -0800
Re: How does OS-X behave with a dead SSD ? Lewis <g.kreme@gmail.com.dontsendmecopies> - 2016-12-05 16:10 +0000
Re: How does OS-X behave with a dead SSD ? Alan Baker <alangbaker@telus.net> - 2016-12-05 12:47 -0800
Re: How does OS-X behave with a dead SSD ? Lewis <g.kreme@gmail.com.dontsendmecopies> - 2016-12-05 21:53 +0000
Re: How does OS-X behave with a dead SSD ? joe <none@domain.invalid> - 2016-11-30 07:55 -0600
Re: How does OS-X behave with a dead SSD ? nospam <nospam@nospam.invalid> - 2016-11-30 11:12 -0500
Re: How does OS-X behave with a dead SSD ? JF Mezei <jfmezei.spamnot@vaxination.ca> - 2016-11-30 16:44 -0500
Re: How does OS-X behave with a dead SSD ? nospam <nospam@nospam.invalid> - 2016-11-30 17:14 -0500
Re: How does OS-X behave with a dead SSD ? Jolly Roger <jollyroger@pobox.com> - 2016-12-01 00:53 +0000
Re: How does OS-X behave with a dead SSD ? Lewis <g.kreme@gmail.com.dontsendmecopies> - 2016-12-01 12:58 +0000
Re: How does OS-X behave with a dead SSD ? Lewis <g.kreme@gmail.com.dontsendmecopies> - 2016-11-30 20:15 +0000
Re: How does OS-X behave with a dead SSD ? billy@MIX.COM - 2016-12-04 05:25 +0000
Re: How does OS-X behave with a dead SSD ? Jolly Roger <jollyroger@pobox.com> - 2016-12-04 06:02 +0000
Re: How does OS-X behave with a dead SSD ? JF Mezei <jfmezei.spamnot@vaxination.ca> - 2016-12-04 02:00 -0500
Re: How does OS-X behave with a dead SSD ? Lewis <g.kreme@gmail.com.dontsendmecopies> - 2016-12-04 18:42 +0000
Re: How does OS-X behave with a dead SSD ? Jim Gibson <JimSGibson@gmail.com> - 2016-11-29 18:10 -0800
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