I'm setting up an ftp/mirror server out of a PC with a 4GB EIDE disk, three 6GB EIDE disks taken from other PCs that don't need them and an old SCSI array of 4 x 4GB disks. Rather than mess around with allocating 7 or 8 different filesystems to different parts of the ftp hierarchy, I want to raid them into one large blob. What seems an obvious way to me which should provide reasonable performance and reliability is to make the 4 x 4 GB disks into a RAID5 array (resulting in 12 GB of visible store), make the 3 x 6GB disks into a separate RAID5 array (another 12GB) and then RAID0 stripe the two 12GB md devices into one big 24GB one. Is doing RAID0 over RAID5 a possible/reasonable thing to do with the latest md/raidtools? Need I choose any non-default chunk sizes or suchlike to tune things better? --Malcolm -- Malcolm Beattie <[EMAIL PROTECTED]> Unix Systems Programmer Oxford University Computing Services
