[Linux-cluster] Some newbie questions

[Dylan Vanderhoof]

> -----Original Message-----
> From: Jos Vos [mailto:jos at xos.nl]
> Sent: Tuesday, September 12, 2006 11:35 PM
> To: linux clustering
> Subject: Re: [Linux-cluster] Some newbie questions
>
>
> Yes, this can be done (on an unmounted fs) using:
> 
>   gfs_tool sb <device> proto lock_dlm
> 
> Note that you better should add enough journals to the filesystem
> when creating it.  You can add journals later, but only if there
> is (enough) space left on the device after the filesystem, which
> is normally not the case (if your filesystem occupies the whole
> device).

Interesting.  I hadn't considered that.  Is there a document somewhere
that shows how large a journal is?  Or rather, is there a cost to adding
more than I will likely need to be safe?

If the fs is grown onto additional iSCSI targets, can journals be added
at that point as well utilizing the additional space on those devices?

Thanks,
Dylan