Hi, we are starting to buy some large RAID arrays to store 50-100 TB of video data. The data will later be processed by an application that reads 2-3 video streams with ~16MB/s.
The storage will be attached to an Debian Etch Server (Kernel 2.6.18), the application/clients will access the data with samba. The RAID array will be split in smaller volumes and I want to create xfs filesystems on these volumes with a maximum size of 4TB. With this we would end with 20-30 filesystems, which I think would not be very feasible. Thus I would like to have one virtual filesystem (or data area) which is exported as one share by samba. Nobody would access the org. filesystems directly, only the virtual unionfs. I did a very quick test with unionfs and a couple of directories that I mounted to a directory. This worked exactly as I wanted and seems to be the solution I'm looking for. Is there anything that could be a problem in this scenario, any limitations? I found this old posting: unified storage http://thread.gmane.org/gmane.comp.file-systems.unionfs.general/1070 Does that mean that I can't write 12 TB of data to a unionfs with 3 fs x 4 TB? lvm is no option, because I need to create the filesystem on top of lvm. And I really don't want to use fs >4TB. Ralf _______________________________________________ unionfs mailing list: http://unionfs.filesystems.org/ [email protected] http://www.fsl.cs.sunysb.edu/mailman/listinfo/unionfs
