HP StorageWorks Scalable File Share System Installation and Upgrade Guide Version 2.2

Configuring the storage5–24
Example 2 — Two file systems
The following is an example of configuring the storage on arrays attached to the administration and MDS
servers in a system where there will be two file systems.
The MDS LUNs in this example are not of equal size; instead, one MDS LUN is twice the size of the second
MDS LUN. This configuration would support one large file system and one smaller file system.
The command is entered as follows (arrays 1 and 2 are attached to the administration and MDS servers):
sfs> configure array 1,2 luns_size=33%,all
The command configures each array as follows:
• One disk group of eleven disks, plus one spare disk
• ADG redundancy
• An administration LUN (or spare administration LUN)
• A service LUN (or spare service LUN)
• Two MDS LUNs, one using 33% of the remaining space in the disk group (after the administration
LUN and service LUN have been created), and the second using the remaining available space in the
disk group
Table 5-6 shows details of the resulting configuration on two arrays attached to administration server and
the MDS server (south1 and south2). For more information on the configure array command, see
Section 7.7.2.
2 140GB
1
admspare south[1-2] The spare administration LUN.
11GB svcspare south[1-2] A spare service LUN for the south1
and the south2 server pair.
1 All of the
remaining
capacity in the
disk group to a
maximum of 2TB.
mds south[1-2] The second of the pair of LUNs for
the MDS service.
1. Can be configured to a different size.
Table 5-6 SFS20 arrays attached to the administration and MDS servers — two file systems
Array Disk Group Size Role Connected to Notes
1 140GB
1
adm south[1-2] The administration LUN.
11GB service south[1-2] The service LUN for the south1
and south2 server pair.
133% of the
remaining
capacity in the
disk group.
mds south[1-2] An MDS LUN for the MDS service in
one of the file systems. See
Section 5.5 for information on
sizing the MDS LUN.
1 All of the
remaining
capacity in the
disk group to a
maximum of 2TB.
mds south[1-2] An MDS LUN for the MDS service in
the second file system.
Table 5-5 SFS20 arrays attached to the administration and MDS servers — one file system
Array Disk Group Size Role Connected to Notes