Quick memo for useful commands

Sharepools

Check if your pseries is multiple shared_pools capable :

# lssyscfg -r sys -m [managed_system] -Factive_lpar_share_idle_procs_capable

–> returns 1 if it supports multiple shared_pools, and 0 if not .

List the sharepools active on the frame and the lpars associated with’em :

# lshwres -r procpool -m [managed_system] -Fname,lpar_names

 DefaultPool,"VIO1,VIO2"

shp_oracle,"my_db_lpar1,my_db_lpar2"

shp_app,"my_app_lpar"

Changing the current sharepool for a LPAR :

# chhwres -r procpool -m [managed_system] -o s -p [lpar_name]  -a "shared_proc_pool_name=[target_sharepool_name]"

Changing the sharepool  defined in a LPAR’s profile :

 # chsyscfg -r prof -m [managed_system] -i "lpar_name=[lpar_name],name=[profile_name],shared_proc_pool_name=[target_sharepool_name]"

Hardware-related commands

Listing all I/O slots from a pseries ,sorted by device type and numbered :

/!\ (in order to do this, you need to execute the « awk |sort|uniq » part from an AIX system, because you can’t use awk with hscroot on a HMC ( I really should ask IBM why, one day… ?! it is so useful…))

# lshwres -m [managed_system] -r io --rsubtype slot\

 -F drc_name:bus_id:description| awk -F: '{print $NF}' | sort |uniq -c

24 8 Gigabit PCI Express Dual Port Fibre Channel Adapter

21 Empty slot

38 Ethernet controller

17 PCI-E SAS Controller

•          on my beautiful p795, I have 21 empty slots, 24 NPIV-capable Fibre channel adapter, 17 SAS controllers and 38 FcoE cards

•          If you wish to have more thorough information (like physical location), you juste have to remove the « awk |sort|uniq » part, which will give this kind of output (much more verbose, please note the « null » value which gives us the unassigned I/O Cards):

# lshwres -m [managed_system] -r io --rsubtype slot \

 -F drc_name:bus_id:description:lpar_name

U5803.001.9SS05BI-P1-C8:617:8 Gigabit PCI Express Dual Port Fibre Channel Adapter:null

U5803.001.9SS05BI-P1-C9:618:Ethernet controller:null

U5803.001.9SS05BI-P1-C10:619:Ethernet controller:null

U5803.001.9SS05BI-P1-C4:612:Ethernet controller:null

[...]

U5803.001.9SS05BI-P2-C3:1042:Empty slot:null

U5803.001.9SS05BI-P2-C7:1048:Ethernet controller:VIO2

U5803.001.9SS05BI-P2-C8:1049:Ethernet controller:VIO1

U5803.001.9SS05BI-P2-C9:1050:8 Gigabit PCI Express Dual Port Fibre Channel Adapter:VIO2

U5803.001.9SS05BI-P2-C5:1045:PCI-E SAS Controller:VIO1

lpar-related actions

Shutting down a LPAR:

# chsysstate -m [managed_system] -r lpar -n [lpar_name] -o shutdown [--immed]

rename a lpar (easy):

# chsyscfg -m  [managed_system] -r lpar  -i "name=my_lpar_name,new_name=my_new_lpar_name"