I use PXE and grab it over the network... No local disk at all. Which leads me to a question for the gluster team: One thing I was hoping to implement was local caching, where I can take say a 20 MB ramdisk and have it solely for caching glusterfs reads. I've heard some chatter about this on the list, but is that something you are planning for a certain release? Chris -----Original Message----- From: gluster-devel-bounces+chawkins=veracitynetworks.com@xxxxxxxxxx [mailto:gluster-devel-bounces+chawkins=veracitynetworks.com@xxxxxxxxxx] On Behalf Of Jacques Mattheij Sent: Wednesday, November 14, 2007 9:25 AM Cc: gluster-devel@xxxxxxxxxx Subject: Re: glusterfs as root filesystem excellent trick Christopher ! It's quite close to what live distributions use to boot from CD (such as knoppix). Where does your 'initrd' image live ? I'm assuming that you have some kind of local storage for that or do you fetch it across the network somehow ? Jacques Mattheij Christopher Hawkins wrote: > whitelistentry: gluster > I took a slightly different approach and it works well so far... First > you need an initrd with the gluster executables and libraries, which I > make and update with this script: > > #!/bin/bash > # > PATH=/bin:/sbin:/usr/bin > # > TROOT=/root/initrd_root > # > # Update executables > for i in `find /sbin -iname "*gluster*"` > do cp -vf $i $TROOT/bin/ > done > # Update libraries > for i in `find /lib -iname "*gluster*"` > do cp -vf $i $TROOT/lib/ > done > # Rsync lib dir > rsync -av /lib/glusterfs/* $TROOT/lib/glusterfs/ # exit 0 > > Then you put everything else you need in the initrd and tar it up / > compress it, boot it, and have it modprobe fuse and glusterfs -f > /somefile_in_initrd /some_local_dir. What I do first though, is have > init build a few partitions in ram and format them ext2, then mount > glusterfs and copy some common stuff into the ramdisks (which are > really the root, not gluster) and create symlinks to the > subdirectories in the glusterfs filesystem. And this seems to run > Centos no problem... Gluster guys, any comments on a better way to do this? It works great, but I imagine it could optimized for speed... > > Thanks, > Chris > > -----Original Message----- > From: gluster-devel-bounces+chawkins=veracitynetworks.com@xxxxxxxxxx > [mailto:gluster-devel-bounces+chawkins=veracitynetworks.com@xxxxxxxxxx > ] On Behalf Of Matthias Albert > Sent: Wednesday, November 14, 2007 4:06 AM > To: gluster-devel@xxxxxxxxxx > Subject: glusterfs as root filesystem > > Hi, > > has anyone tried using glusterfs as root fs? > > We are using openqrm as deployment/management system for our servers here. > With openqrm we can deploy both native machines and e.g. xen images. > As root Filesystem we are currently using NFS which isn't really fast. > > Because we're using glusterfs for our backups and also for our > Samba/NFS Server it is close to use it also as root filesystem for our xen images. > > I think the only thing we need is fuse in a initrd and the glusterfs > binary with the needed shared object files. > > Any helpful suggestions? > > Regards, > > Matthias > > > _______________________________________________ > Gluster-devel mailing list > Gluster-devel@xxxxxxxxxx > http://lists.nongnu.org/mailman/listinfo/gluster-devel > > > > _______________________________________________ > Gluster-devel mailing list > Gluster-devel@xxxxxxxxxx > http://lists.nongnu.org/mailman/listinfo/gluster-devel -- /-------------------------------------------------------------------------\ | Jacques Mattheij, j@xxxxxx, ww.com, livelog.com and greenbits.com | | | | IMPORTANT: | | When you send me mail from an address that is unknown to me make sure | | the current password ('stjoes') is present anywhere in the email, | | otherwise it will not get through! | \-------------------------------------------------------------------------/ _______________________________________________ Gluster-devel mailing list Gluster-devel@xxxxxxxxxx http://lists.nongnu.org/mailman/listinfo/gluster-devel
