Example: Initializing a PS Series Array
........................................................................................................................
26
Managing Access to a PS Series Group
...........................................................................................................................
26
Adding Access to a Group
............................................................................................................................................
26
Listing Accessible Groups
...................................................................................................................................................
27
rswcli --list-group Command Syntax
...........................................................................................................................
27
Example: Listing Information for Groups
....................................................................................................................
28
Modifying Access to a Group
.............................................................................................................................................
28
rswcli --modify-group-access Command Syntax
......................................................................................................
28
Example: Modifying Group Access
..............................................................................................................................
28
Removing Host Access to a Group
...................................................................................................................................
29
rswcli --remove-group-access Command Syntax
....................................................................................................
29
Example: Removing Host Access to Group
...............................................................................................................
29
Configuring Multipath I/O
..................................................................................................................................................
29
4 Configuring Multipath I/O Devices
...............................................................................................
30
Accessing Volumes Using Multipath I/O
..........................................................................................................................
30
Discovering Targets
......................................................................................................................................................
30
Log In to an MPIO Volume
............................................................................................................................................
31
Logging Out of an MPIO Volume
.................................................................................................................................
32
Displaying Connections to a Volume
...........................................................................................................................
32
Managing Automatic Logins
.........................................................................................................................................
32
Managing iSCSI Interfaces
...........................................................................................................................................
32
Multipath Device Configuration
.........................................................................................................................................
33
Traditional Multipath Device Configurations
....................................................................................................................
33
Multipath Configuration
................................................................................................................................................
33
Example Multipath Device Configuration
...................................................................................................................
35
Special MPIO Configuration Cases
.............................................................................................................................
35
Conditions for Configuring Multipath Devices
.................................................................................................................
36
Use of the
multipathd
Daemon
.............................................................................................................................
36
Use of dm-switch Kernel Module
................................................................................................................................
36
Configuring Settings for Multipath I/O
.............................................................................................................................
37
Multipath I/O Sessions
..................................................................................................................................................
37
Setting MPIO Parameters
............................................................................................................................................
37
Listing MPIO Subnets
....................................................................................................................................................
37
Including a Subnet or Adapter for MPIO
..........................................................................................................................
39
rswcli --mpio-include Command Syntax
.....................................................................................................................
39
Examples: mpio-include Command
.............................................................................................................................
40
Excluding a Subnet or Adapter From MPIO
.....................................................................................................................
41
Including or Excluding Specific Host NICs
........................................................................................................................
41
Configuring I/O Path Selection
..........................................................................................................................................
41
Load Balancing Policy
....................................................................................................................................................
41
I/O Scheduling
................................................................................................................................................................
41
Setting Volume-Specific Configuration Parameters
........................................................................................................
41
5 Introduction to ASM/LE
..............................................................................................................
43
About ASM/LE
....................................................................................................................................................................
43
About Smart Copies
............................................................................................................................................................
43
Types of Smart Copies Created
..................................................................................................................................
44
Synchronous Replication and Smart Copies
..............................................................................................................
45
4
Contents