Hello, I have some systems that do video recording, with 4 disks each. 10% of the disk is used for the base operating system (/), all mirrored in software RAID. The rest of the space is mounted under 4 mountpoints and unified under a rw meta mountpoint with unionfs. Something like this:
Filesystem Size Used Avail Use% Mounted on /dev/sda3 275G - - - /mnt/sda3 /dev/sdb3 275G - - - /mnt/sdb3 /dev/sdc3 275G - - - /mnt/sdc3 /dev/sdd3 275G - - - /mnt/sdd3 unionfs 1100G - 1100G - /storage The application used for video recording produces big chunks of data, this is why I need so much common storage. The problem is that when the first disk on the unionfs mount fills (sda3) the application does not continue to write on the following disks from the union, instead it crashes, being unable to work with no space left on device (although the rest of the disks in the union are empty). Is there a way to have the common space used all at once by different applications? It would be great if unionfs were able to detect when the disk is almost full and continue n the remaining disks/space, or write balanced info, on all the disks. I'd rather use unionfs than RAID because all the data is not very important and I can afford to have a bad disk replaced and loose all the information on it, but it is not acceptable to have the whole RAID matrix lost (and experience has proved this can happen, often, even with RAID5). Thank you. Dragos _______________________________________________ unionfs mailing list [email protected] http://www.fsl.cs.sunysb.edu/mailman/listinfo/unionfs
