Hi Ikeda-san, > I know this performance disadvantage is really rare case, > so I would like to recommend "internal meta data" as the community > recommended value.
I absolutely agree with you. Consideing buffer or cache on storage device or RAID controller, and considering metadata size (approx. 1/32768 of data area size), performance issue can be ignored for most cases. The almost only situation that external metadata is required is to add DRBD redundancy to an existing filesystem with various limitation described in the Users Guide. If high availability is the most important issue, we should avoid using older hardware as possible as we can. In addition, people often want not only high availability but also larger storage space and/or higher performance. I have never experienced the necessity of external metadata in my several years experience. I hope my tiny opinion helps. Thanks, Motoharu Kubo _______________________________________________ drbd-user mailing list [email protected] http://lists.linbit.com/mailman/listinfo/drbd-user
