Re: [zfs-macos] ZFS w/o ECC RAM -> Total loss of data

2014-03-02 Thread Chris Ridd
On 2 Mar 2014, at 09:16, Philip Robar wrote: > On Sat, Mar 1, 2014 at 5:07 PM, Jason Belec > wrote: >> RAM/ECC RAM is like consumer drives vs pro drives in your system, recent >> long term studies have shown you don't get much more for the extra money. >> > Do you have references to these st

Re: [zfs-macos] Is it ok to discuss OpenZFS/ZFS-OSX here?

2014-03-02 Thread Jorgen Lundman
I'm still working, doing code. Plenty people helping. I want to get a ReleaseCandidate installer out this week. Plenty distractions going around, but I've persevered! That aside, there should be a post going to devel list real soon for those who would like to help try it. -- --- You receiv

Re: [zfs-macos] ZFS w/o ECC RAM -> Total loss of data

2014-03-02 Thread Daniel Becker
On Mar 2, 2014, at 2:33 AM, Bjoern Kahl wrote: > On the other side you say (only) 8% of all DIMMs are affected per > *year*. I *guess* (and might be wrong) that the majority of installed > DIMMs nowadays are 2 GB DIMMs, so you need four of them to build > 8 GB. Assuming equal distribution of bi

Re: [zfs-macos] ZFS w/o ECC RAM -> Total loss of data

2014-03-02 Thread Bjoern Kahl
-BEGIN PGP SIGNED MESSAGE- Hash: SHA1 Am 02.03.14 09:45, schrieb Philip Robar: > On Sun, Mar 2, 2014 at 12:46 AM, Jean-Yves Avenard > wrote: > [ cut a lot not relevant to my comment ] >> Bad RAM however has nothing to do with the occasional bit flip >> that would be prevented using ECC

Re: [zfs-macos] ZFS w/o ECC RAM -> Total loss of data

2014-03-02 Thread Daniel Becker
On Mar 2, 2014, at 12:45 AM, Philip Robar wrote: > But if you insist: from "Oracle Solaris 11.1 Administration: ZFS File > Systems", "Consider using ECC memory to protect against memory corruption. > Silent memory corruption can potentially damage your data." [1] That is in no way specific to

Re: [zfs-macos] ZFS w/o ECC RAM -> Total loss of data

2014-03-02 Thread Philip Robar
On Sat, Mar 1, 2014 at 5:07 PM, Jason Belec wrote: > Technically, what you qualify below is a truism under any hardware. ZFS is > neither more or less susceptible to RAM failure as it has nothing to do > with ZFS. Anything that gets written to the pool technically is sound. You > have chosen a sin

Re: [zfs-macos] ZFS w/o ECC RAM -> Total loss of data

2014-03-02 Thread Philip Robar
On Sun, Mar 2, 2014 at 12:46 AM, Jean-Yves Avenard wrote: > On 28 February 2014 20:32, Philip Robar wrote: > > cyberjock is the biggest troll ever, not even the people actually > involved with FreeNAS (iX system) knows what to do with him. He does > spend an awful amount of time on the freenas fo