On Wed 02 Dec 2009 09:39:03 PM IST, [email protected] (Ashish SHUKLA) wrote: > There is no benefit in creating filesystem images on FS. All the accesses go > via filesystem layer. And since all you want is a contiguous disk space, > having a dedicated partition for it would be best. And as far as VMs are > concerned, I don't think any of GNU/Linux (or any free OSs except Windows :p) > VPS hosting providers are storing images in filesystem, but in LVM volumes or > GPT partitions or simple partitions or ZFS volumes ;). I'm not sure, so > someone with experience please comment.
I have a few servers/VMs at rackspacecloud.com. They use Xen and offer almost instant upgrade to your guest machine (20 GB to 40 GB), and same goes for shrinking too (e.g. 40 to 20 GB). I assumed they'd be saving it in files to offer this flexibility. I'll try to find out. EC2 requires AMI images, that also I assume are stored as a file on the amazon servers. Though have been using LVM extensively, never thought about using its volumes as a VM. Cool! will try it. I used to make a big volume and store my VMs there. Will also check how Ubuntu Cloud/eucalyptus does it. > And as far as reliability of swap is concerned it needs to be reliable, it is > memory after all, or you'll experience memory errors. > Yes of course, till the time its active the reliability matters. My perspective was that since there's no data in it, the consistency of the same doesn't matter. If its a file and the system gets hung/crash or anything, you don't need to worry if swap is okay. -- Best Regards Vivek Kapoor http://exain.com _______________________________________________ ilugd mailinglist -- [email protected] http://frodo.hserus.net/mailman/listinfo/ilugd Archives at: http://news.gmane.org/gmane.user-groups.linux.delhi http://www.mail-archive.com/[email protected]/
