Re: Looks like directory issues-bad ones

On 07/03/2008, at 1:34 AM, Mike Visconti wrote:

Got called in to look at a server that had disappearing files (users click on files or folders and they disappear).

4TB share on an Xserve RAID under 10.4.10 (with a bad install-won't update to 10.4.11) with 500GB free on the volume. Disk Utility cannot repair the volume (have not taken a pass with DiskWarrior yet, but will after getting off as much as possible).

I wanted to start by duping the data that was there elsewhere. However I get errors when trying to ditto:

ditto: /Volumes/drive/folder/./folder2/filename: Input/output error

Have you checked the consistency of the RAID volume in Disk Utility?

Have you checked RAID admin for any reported errors?

Sounds like a disk structure error, or hardware fault. My concern with DiskWarrior would be if it is indeed a bad disk, it'll take a VERY long time and may leave it worse than it started..

I'd also suggest that using cp -Rp across the whole volume will at least continue if it hits errors - save you some time. cp in 10.4 of course also supports Resource forks... Make sure you output standard out/standard error to a log file though.

Notice the /./ in the middle- the normal path would be /Volumes/drive/folder/folder2/filename but for some reason this is showing up. Of course, this is showing up in the folders that have had the disappearing files and folders.

Any ideas as to what is going on, or how to work around this? For now I am just using ditto in small chunks, and keeping track of what is failed for later attempts at recovery (first with DiskWarrior, and then -if desired- with DataRescue). There is only a snapshot of the data from about three months ago. Not a lot to fall back on.

Outside of this piece by piece method, is there anything anyone can think of that might cause this, or that might resolve this?

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	>Looks like directory issues-bad ones (From: "Mike Visconti" <email@hidden>)