[linux-lvm] Error - "device-mapper: request is larger than bl ock size b_size"

ERG at e-r-solutions.com ERG at e-r-solutions.com
Thu Aug 22 14:29:01 UTC 2002


Pardon me if the following is a dumb question:

Do you mean filesystem block size, LV/device block size, or device-mapper
block size?  How do I check my filesystem block size?  How about LV/device
block size?

Thanks,

Manuel Gomez



-----Original Message-----
From: Joe Thornber [mailto:joe at fib011235813.fsnet.co.uk] 
Sent: Wednesday, August 21, 2002 12:51 AM


On Tue, Aug 20, 2002 at 05:57:08PM -0700, ERG at e-r-solutions.com wrote:
> If not, does anyone have an example 'mkfs.xfs -l version=2,su=X' command
> that would give me a filesystem with the appropriate alignment?  

To me it looks like you should set su to your block size, so if your
block size is 4k set su=8.  I don't use xfs myself, so you may want to
wait for confirmation before trying this.

- Joe




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