Hello,
I am buying hardware for a FreeBSD server and me and my friend argue about
whether or not to by ECC RAM for the server. It is a HP ProLiant ML110 G4
machine and currently it has 2 x 512 HP DDR2 ECC memory.
My friend says buying ECC memory is not wise, because we would not profit from
it
Nejc Škoberne wrote:
4. If there is non-ECC memory installed, how does FreeBSD recognizes
(corrects?)
memory errors?
By crashing or corrupting data, of course. Not doing this is what ECC
is for :)
Kris
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Nejc Škoberne wrote:
Hello,
I am buying hardware for a FreeBSD server and me and my friend argue about
whether or not to by ECC RAM for the server. It is a HP ProLiant ML110 G4
machine and currently it has 2 x 512 HP DDR2 ECC memory.
My friend says buying ECC memory is not wise, because
4. If there is non-ECC memory installed, how does FreeBSD recognizes
(corrects?)
memory errors?
it's not OS job, but hardware.
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To
On Fri, Jul 25, 2008 at 08:42:54AM -0400, Michael Powell wrote:
Nejc ?koberne wrote:
Hello,
I am buying hardware for a FreeBSD server and me and my friend argue about
whether or not to by ECC RAM for the server. It is a HP ProLiant ML110 G4
machine and currently it has 2 x 512 HP
Michael Powell wrote:
[snip]
1. So, what would you base your decision on? Is getting ECC worth losing
1GB of non-ECC memory?
Oh - and the other criterion I forgot to mention. If the box in question is
only being used by 1 or 2 people and can have downtime to fix defects
whenever you want,
Erik Trulsson wrote:
[snip]
No, non-ECC RAM cannot detect or correct any errors at all. (Old
parity-RAM could detect, but not correct, single-bit errors.)
Actually quite true. The old parity bit functionality that was removed from
RAM and then called non-ECC actually migrated to the memory
If you can afford it, always buy the ECC. Saves your bacon more often
than not in the long run.
My Mac Pro personal desktop has it. It developed an issue in one of
the sticks. The system detected that many errors were getting
corrected, and disabled the whole stick. Sure I lost 2GB
On Fri, Jul 25, 2008 at 09:28:11AM -0400, Michael Powell wrote:
Erik Trulsson wrote:
[snip]
No, non-ECC RAM cannot detect or correct any errors at all. (Old
parity-RAM could detect, but not correct, single-bit errors.)
Actually quite true. The old parity bit functionality that was
