Luis campo wrote: > > Dear Sirs. > > > > I appreciate your response. > > > > Currently the server has set up a Raid-1 with 2 SCSI disks, it adds up to 6 > SCSI disks with the following configuration: > > > > - Raid-1 (4 SCSI disks) > > - Raid-1 (2 SCSI disks) > > > > Therefore will have 3 SCSI disk arrays. > > > > The server is not configured with LVM. > > > > CentOS 4.7 support this configuration? Absolutely, if your doing it "online" you'll need to re-scan the scsi bus or manually add the new LUN/ID to the system, what I do is - cat /proc/scsi/scsi (take note of the ID string, e.g. Host: scsi0 Channel: 00 Id: 01 Lun: 01 ) If the RAID controller presents the new array as a new LUN then do something like: echo "scsi add-single-device 0 0 1 2" /proc/scsi/scsi Will tell the system to scan for LUN #2 If the controller presents the new array as another SCSI ID, then I would use "0 0 2 0" or perhaps 0 0 2 1 as the sequence. Otherwise you can reboot and the system will detect it automatically. As for the disk size thing, that is normal, the system is correctly detecting the size. nate