On 27-Jan-07, at 4:57 AM, Frank Cusack wrote:
On January 27, 2007 12:27:17 AM -0200 Toby Thain
[EMAIL PROTECTED] wrote:
On 26-Jan-07, at 11:34 PM, Pawel Jakub Dawidek wrote:
3. I created file system with huge amount of data, where most of the
data is read-only. I change my server from intel
Selim Daoud wrote:
it would be good to have real data and not only guess ot anecdots
this story about wrong blocks being written by RAID controllers
sounds like the anti-terrorism propaganda we are leaving in: exagerate
the facts to catch everyone's attention
.It's going to take more than that
On Fri, 26 Jan 2007, Anton B. Rang wrote:
How badly can you mess up a JBOD?
Two words: vibration, cooling.
Three more: power, signal quality.
I've seen even individual drive cases with bad enough signal quality to cause
bit errors.
Yes - me too. I was a early adopter of Fibre
On Jan 26, 2007, at 14:43, Gary Mills wrote:
Our Netapp does double-parity RAID. In fact, the filesystem design is
remarkably similar to that of ZFS. Wouldn't that also detect the
error? I suppose it depends if the `wrong sector without notice'
error is repeated each time. Or is it random?
On January 27, 2007 6:15:29 AM -0200 Toby Thain [EMAIL PROTECTED] wrote:
On 27-Jan-07, at 4:57 AM, Frank Cusack wrote:
On January 27, 2007 12:27:17 AM -0200 Toby Thain
[EMAIL PROTECTED] wrote:
On 26-Jan-07, at 11:34 PM, Pawel Jakub Dawidek wrote:
3. I created file system with huge amount of
On 27-Jan-07, at 10:15 PM, Anantha N. Srirama wrote:
We had in flight data corruption that EMC faithfully wrote just
like NetApp would in your case. Everybody is assuming that
corruption or data loss occurs only on disks, it can happen
everywhere. In a datacenter SAN you've so many more
On 27-Jan-07, at 10:15 PM, Anantha N. Srirama wrote:
... ZFS will not stop alpha particle induced memory corruption
after data has been received by server and verified to be correct.
Sadly I've been hit with that as well.
My brother points out that you can use a rad hardened CPU. ECC
On Sat, Jan 27, 2007 at 04:15:30PM -0800, Anantha N. Srirama wrote:
I'm not sure what benefit you forsee by running a COW filesystem
(ZFS) on a COW array (NetApp).
Assuming that that question was addressed to me, the primary feature
that I need from ZFS is snapshots. The Netapp has snapshots
