On Tuesday May 22, weiler@xxxxxxxxxxxx wrote: > Greetings all- > > Quick question. We've got one of these new Sun x4500's, it is basically > a machine with 48 disks in it, no hardware RAID controller, so you have > to use software RAID, in our case mdadm because we're running RHEL 4.4. > > When we try to create the raid set (RAID6), we're getting an error: > "Invalid number of devices" (47 devices). We tried lowering the number, > and eventually it worked when we brought the number down to 27. But > looking at the source code, it looks like it supports up to 256 devices > for RAID6... ? Any insight would be much appreciated!! Use "--metadata=1" to mdadm. The 0.90 superblock has a limit of 27 devices. version 1 has no fixed limit, but the code might not support more than 384 very well. > > Thanks a million, That would be a megathank :-? NeilBrown - To unsubscribe from this list: send the line "unsubscribe linux-raid" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
