Note: "permalinks" may not be as permanent as we would like,
direct links of old sources may well be a few messages off.
Lars, It'd be nice to see this well-documented (setting up the low-level device with internal meta-data) Perhaps a step-by-step (command by command) example of how to properly set one up. Since so many people get this wrong, what's wrong with putting up a small example, keep it simple? Say you have a whole drive you want to dedicate (eg: /dev/sdb1 ) and want to use internal meta-data. You want to use as much as possible for the data, and reserve only enough for the meta-data What exact commands (for drbd v8) should a person use to set it up? Something like this (please correct if wrong (using /data as example) -- /etc/init.d/drbd start mkdir /data drbdadm create-md all drbdadm up all mkfs -t reiserfs /dev/drbd0 mount -t rieserfs /dev/drbd0 /data Notice, no underlying partition created. Is this correct? Dan. On Thu, Feb 14, 2008 at 8:32 AM, Lars Ellenberg <lars.ellenberg at linbit.com> wrote: > On Wed, Feb 13, 2008 at 07:29:47AM -0800, yoyo64 wrote: > > > > Hi > > > > I use internal metadata, for my resources > > > Is it the best choice for big amount of datas ? > > depends on your definition of "best". :) > depends on what your storage subsystem is. > > if you have some good raid, > the difference is more administratively. > > on good raid, it should not differ > that much performance wise/technically. > > > What is the limit ? > > depends on a lot of factors, mainly what kernel, > what architecture, and the amount of RAM. > > > Why to choice external ? > > drbd external meta data makes resizing much easier. > > it also avoids any issues with the file system being > smaller than the lower level device, because you have > to leave room for the drbd meta data. > many people got this one wrong. > > > > How do I do for transfering my devices from internal to external ? > > in theory: > drbdadm dump-md > # reconfigure > drbdadm restore-md > > -- > : Lars Ellenberg http://www.linbit.com : > : DRBD/HA support and consulting sales at linbit.com : > : LINBIT Information Technologies GmbH Tel +43-1-8178292-0 : > : Vivenotgasse 48, A-1120 Vienna/Europe Fax +43-1-8178292-82 : > __ > please use the "List-Reply" function of your email client. > _______________________________________________ > drbd-user mailing list > drbd-user at lists.linbit.com > http://lists.linbit.com/mailman/listinfo/drbd-user > -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.linbit.com/pipermail/drbd-user/attachments/20080214/be15a86c/attachment.htm>