Dell EqualLogic PS6210E EqualLogic Host Integration Tools for Linux Version 1. - Page 38
Examples: Setting MPIO Parameters, Example 1: Setting maxvols, maxvole, dlb, and Internet Protocol
View all Dell EqualLogic PS6210E manuals
Add to My Manuals
Save this manual to your list of manuals |
Page 38 highlights
Table 12. MPIO Optional Parameters Parameter Abbr. --max-sessions-per-volume-slice maxvols --max-sessions-per-entire-volume maxvole --default-load-balancing dlb --io-per-path ios --min-adapter-speed --use-mpio-snapshots --useip or --useip6 minsp msnap ip or ip6 Argument 1-4 1-12 LQD or RR 1 - 1000 100 or 1000 or 10000 Yes or No none Description Specifies the maximum number of connections for MPIO to use per volume per member. Specifies the maximum number of connections for MPIO to use per volume for all members. Specifies the default load balancing policy for MPIO as Least Queue Depth (LQD) or Round Robin (RR). Specifies the number of I/Os to send down each path to a member before the dm-multipath target switches to another path. Larger values provide better throughput on sequential I/O workloads. The default is 16. Specifies the minimum speed of the NICs MPIO should use, if at least two meet the speed. Specifies whether to use MPIO for snapshots. Specifies that MPIO will use IPv4 or IPv6 addresses. Only one parameter can be specified. Examples: Setting MPIO Parameters This section includes examples of using the rswcli command to set parameters. Example 1: Setting maxvols, maxvole, dlb, and Internet Protocol In the following example, the command syntax includes the maximum number of connections that MPIO should use per volume (-maxvols), maximum sessions per entire volume (--maxvole), the default load balancing mechanism (--dlb), and Internet Protocol (--ip6): # rswcli -P --maxvols 3 --maxvole 12 --dlb RR --ip6 Processing mpio-parameters command... MPIO Parameters: Max sessions per volume slice: 3 Max sessions per entire volume: 12 Minimum adapter speed: 1000 Default load balancing policy configuration: Round Robin (RR) IOs Per Path: 16 Use MPIO for snapshots: Yes Internet Protocol: IPv6 The mpio-parameters command succeeded. Example 2: Setting I/Os Per Path The following example shows output after setting the I/Os per path from 16 to 8: # rswcli --mpio-parameters --io-per-path 8 Processing mpio-parameters command... MPIO Parameters: Max sessions per volume slice: 2 Max sessions per entire volume: 6 Minimum adapter speed: 100 Default load balancing policy configuration: Round Robin (RR) IOs Per Path: 8 Use MPIO for snapshots: Yes Internet Protocol: IPv4 38 Configuring Multipath I/O Devices