[linux-lvm] Directly using a logical volume

Lars Ellenberg Lars.Ellenberg at linbit.com
Wed Sep 21 12:58:09 UTC 2005

/ 2005-09-20 16:14:25 -0400
\ Allen, Jack:
>         I have a system connected to a SAN via Fibre Channel interface.
> The system sees 3 disk sdb, sdc and sdd. I put them in a volume group
> and then allocated some logical volumes. If I use the logical volume to
> read and write to directly for my application, if there is an error on a
> write, I assume the write system call will return an error. Or does the
> write give a good return value after putting the data in some system
> buffer to be written later? Then is the write of the system buffer fails
> later, my program would not know.

not exactly a linux-lvm question, is it?

man 2 write
man 2 fsync
man 3 open       (O_SYNC)

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