On Mon, 2004-08-16 at 12:04, Peter 1 Oberparleiter wrote:
> What is more likely to have happened is that the label information
> from a previously CDL formatted disk was erased (e.g. by a direct write
> to the first records of the device). In that case, during the next
> IPL, the partition detection code will assume a LDL formatted device
> due to the missing label and create one partition from record 4 to the
> device end. This partition includes the different-sized records on
> track 1. Once the partition is sufficiently populated with files and
> directories, either file or filesystem data is stored at this location,
> therefore becoming corrupted.

This is mentioned in a WebSphere context.  Is there anything in
WebSphere so rude as to bypass the filesystem and try to write directly
to the disk device?  Or perhaps WebSphere's database attempting to use
the device in raw mode?  In short, is there any failure mode other than
user error that might directly write to the first few records on the
disk?  zipl obviously *does* write there, but it also preserves the
existing format type just fine.

Adam

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