Fujitsu FibreCAT S80 - Expanding Capacity and Cabinet ID

64 U41578-J-Z875-1-76
Appendix
Expand Capacity
Methods
There are three methods to add capacity to a given FibreCAT S80 system:
a) Adding new groups
(and LUNs) on the new HDDs, independently
from the existing configuration
Advantage: Quick expansion, best performance due to independent
disks
b) Adding a new LUN
by expanding an existing group
Advantage: Saves disks because in RAID 5 only one parity disk is required
c) Enlarging an existing
LUN
Depends on OS / only possible if there is a single LUN in a group
New Disk
Group
Old Group
New LUN Old LUN 1
New LUN
new Group
Old LUN 1
Old LUN 2
New LUN
larger Group
Old LUN 1
Old LUN 2
larger LUN 1
larger Group
Old LUN 1