5
Sample Unshared Direct Installation
5-7
Planning File Systems and LUNs
Sample Unshared Direct Installation
This section shows the disks and LUNs in an unshared direct
storage-system installation.
To repeat from the previous section: disk IDs have the form b e d,
where b is the FC4700 back-end bus number (0, which can be omitted,
or 1), e is the enclosure number, set on the enclosure front panel
(always 0 for the DPE), and d is the disk position in the enclosure (left
is 0, right is 9).
Figure5-2 Unshared Direct Storage Example
If each disk holds 36 Gbytes, then the storage system provides the
server with 576 Gbytes of disk storage, all highly available; it
provides Server 2 with 180 Gbytes of storage, all highly available. The
storage-system disk IDs and LUNs are as follows.
EMC1825
Disk IDs
100-109
010-019
Database
RAID 5 Users
RAID 5
Sys
RAID 1
Clients, mail
RAID 5
SP A SP B
Adapter
Adapter
Server
Path 1
Path 2
LUNs - SP A and SP B, 576 Gbytes
Disk IDs RAID type, storage typ e, capacity
000, 001 RAID 1, System disk, 36 Gbytes
002-009 RAID 5 (8 disks), Clients and Mail, 252 Gbytes
100-104 RAID 5, Database, 144Gbytes
105-109 RAID 5, Users, 144 Gbytes