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Configuring compression on ISL ports a Lenovo ThinkSystem DB620S 32G FC SAN switch switch

If you are using Lenovo ThinkSystem DB620S 32G FC SAN switch switches and enabling compression on the ISLs, you must configure it on each E-port on the switches.

This tasks must be performed on the ISL ports on both switches using the ISL.

  1. Disable the port on which you want to configure compression: portdisable port-id
  2. Enable compression on the port: portCfgCompress --enable port-id
  3. Enable the port to activate the configuration with compression: portenable port-id
  4. Confirm that the setting has been changed: portcfgshow port-id

The following example enables compression on port 0.

FC_switch_A_1:admin> portdisable 0
FC_switch_A_1:admin> portcfgcompress --enable 0
FC_switch_A_1:admin> portenable 0
FC_switch_A_1:admin> portcfgshow 0
Area Number: 0
Octet Speed Combo: 3(16G,10G)
(output truncated)
D-Port mode: OFF
D-Port over DWDM ..
Compression: ON
Encryption: ON

You can use the islShow command to check that the E_port has come online with encryption or compression configured and active.

FC_switch_A_1:admin> islshow
  1: 0-> 0 10:00:c4:f5:7c:8b:29:86   5 FC_switch_B_1                 
sp: 16.000G bw: 16.000G TRUNK QOS CR_RECOV ENCRYPTION COMPRESSION

You can use the portEncCompShow command to see which ports are active. In this example you can see that encryption and compression are configured and active on port 0.

FC_switch_A_1:admin> portenccompshow
User  Encryption           Compression         Config
Port   Configured    Active   Configured   Active  Speed
----   ----------    -------  ----------   ------  -----
  0   Yes          Yes     Yes         Yes    16G