Re: [zfs-discuss] Re: zfs corrupted my data!

2006-11-29 Thread Toby Thain
On 29-Nov-06, at 8:53 AM, Brian Hechinger wrote: On Tue, Nov 28, 2006 at 10:48:46PM -0500, Toby Thain wrote: Her original configuration wasn't redundant, so she should expect this kind of manual recovery from time to time. Seems a logical conclusion to me? Or is this one of those once-in-a-li

Re: [zfs-discuss] Re: zfs corrupted my data!

2006-11-29 Thread Brian Hechinger
On Tue, Nov 28, 2006 at 10:48:46PM -0500, Toby Thain wrote: > > Her original configuration wasn't redundant, so she should expect > this kind of manual recovery from time to time. Seems a logical > conclusion to me? Or is this one of those once-in-a-lifetime strikes? That's not an entirely tr

Re: [zfs-discuss] Re: zfs corrupted my data!

2006-11-28 Thread Matt Ingenthron
Christopher Scott wrote: I currently have a server that has a much higher rate of checksum errors than what you describe to be "normal." I knew it wasn't good but I figured if zfs is fixing it for me why mess with it? Is there anything I can do to troubleshoot where the problem might be com

Re: [zfs-discuss] Re: zfs corrupted my data!

2006-11-28 Thread Christopher Scott
Anton B. Rang wrote: Clearly, the existence of a high error rate (say, more than one error every two weeks on a server pushing 100 MB/second) would point to a hardware or software problem; but fewer errors may simply be “normal” for standard hardware I currently have a server that has a much

Re: [zfs-discuss] Re: zfs corrupted my data!

2006-11-28 Thread Toby Thain
On 28-Nov-06, at 10:35 PM, Anton B. Rang wrote: No, you still have the hardware problem. What hardware problem? There seems to be an unspoken assumption that any checksum error detected by ZFS is caused by a relatively high error rate in the underlying hardware. There are at least two

[zfs-discuss] Re: zfs corrupted my data!

2006-11-28 Thread Anton B. Rang
> No, you still have the hardware problem. What hardware problem? There seems to be an unspoken assumption that any checksum error detected by ZFS is caused by a relatively high error rate in the underlying hardware. There are at least two classes of hardware-related errors. One class are those

[zfs-discuss] Re: zfs corrupted my data!

2006-11-28 Thread Anton B. Rang
>> With zfs, there's this ominous >> message saying "destroy the filesystem and restore >> from tape". That's  not so good, for one corrupt >> file. > It is strictly correct that to restore the data you'd need > to refer to a backup, in this case. It is not, however, correct that to restore the d