>>> On Fri, Sep 21, 2007 at  3:39 PM, in message
<[EMAIL PROTECTED]>, RPN01 <[EMAIL PROTECTED]> wrote: 
> Just to steer things a bit off target...
> 
> Is there any advantage of either CDL or CMS formatting over the other? CMS
> would require pre-processing before giving the disk to a Linux image, where
> Linux can format the disk itself if it is doing CDL. Beyond that, are there
> any speed or capacity issues? Block size advantages of one over the other?
> Any other small gifts that could be presented by one and not the other?

Well, you can run multiple dasdfmt commands in parallel (which is an option 
YaST lets you choose during install).  CDL lets you create partitions on the 
disk, which means the "fdasd -p" command works.

The FBA DASD driver is being deprecated for "native FBA devices."  Using the 
DIAG driver to access them will still be supported, as will FBA emulated SCSI 
devices via z/VM minidisks.

By default, dasdfmt uses a 4K block size, so no difference there.

Other than that, I can't really think of any significant differences.  >From my 
perspective, CDL is a better choice simply because of the partitioning 
capability.


Mark Post

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