[dm-devel] read-ahead in lvcreate

shahid shaikh shahid.shaikh at patni.com
Thu Mar 3 14:54:48 UTC 2005


Hello,

 I was going through the code of Device Mapper and I found that it doesnt
allow readahead option but read and write.

	Then I tried to use readahead in lvcreate but it gives error.

	If someone can explain this scenario and answer to my following queries i
will be greatfull.

	1) Can we use readahead option of lvcreate?
	2) If yes, will it effect readahed of scsi?
	3) If no, then why they have provided this option in lvcreate?



Thanks and Regards,
Shahid Shaikh.
Software Engineer.
Patni Computer Systems Ltd.





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