How are memory and disk allocated to different modules on bigip appliance?

Hi Herman,

First you need to list the different provision related DB variables value.

I would highly recommend to test these commands only in a TEST LAB setup, do not play the settings on a PRODUCTION F5, till you are not sure of the outcomes.

Once you get the proper SYS DB variable value for your resource provisioning, then you can work on modifying that particular variable and it may cause your system unstable or crash or reboot.

First identify the right DB variable of your requirement before modifying it .

And search more details on that DB variable and consequences of changing it.

root@(TEST-F5-01)(cfg-sync In Sync)(Active)(/Common)(tmos)# list sys db provision
Display all 184 items? (y/n) y

Configuration Items:
  provision.1nic                  provision.cpu.urldb             provision.enforce               provision.memory.gtm.host       provision.noautoreboot          provisioned.cpu.sslo            provisioned.disk.tam            provisioned.memory.gtm.host
  provision.1nicautoconfig        provision.cpu.vcmp              provision.extramb               provision.memory.host           provision.pending               provisioned.cpu.swg             provisioned.disk.tmos           provisioned.memory.host
  provision.action                provision.disk.afm              provision.initialized           provision.memory.ilx            provision.restjavad.extramb     provisioned.cpu.tam             provisioned.disk.urldb          provisioned.memory.ilx
  provision.afm.extramb           provision.disk.am               provision.managementeth         provision.memory.ilx.host       provision.sadc                  provisioned.cpu.tmos            provisioned.disk.vcmp           provisioned.memory.ilx.host
  provision.cpu.afm               provision.disk.apm              provision.memory.afm            provision.memory.lc             provision.tmmcount              provisioned.cpu.urldb           provisioned.memory.afm          provisioned.memory.lc
  provision.cpu.am                provision.disk.asm              provision.memory.afm.host       provision.memory.lc.host        provision.tmmcountactual        provisioned.cpu.vcmp            provisioned.memory.afm.host     provisioned.memory.lc.host
  provision.cpu.apm               provision.disk.avr              provision.memory.am             provision.memory.ltm            provision.tomcat.extramb        provisioned.disk.afm            provisioned.memory.am           provisioned.memory.ltm
  provision.cpu.asm               provision.disk.cgnat            provision.memory.am.host        provision.memory.ltm.host       provision.wocplugincount        provisioned.disk.am             provisioned.memory.am.host      provisioned.memory.ltm.host
  provision.cpu.avr               provision.disk.dos              provision.memory.apm            provision.memory.pem            provisioned.cpu.afm             provisioned.disk.apm            provisioned.memory.apm          provisioned.memory.pem
  provision.cpu.cgnat             provision.disk.em               provision.memory.apm.host       provision.memory.pem.host       provisioned.cpu.am              provisioned.disk.asm            provisioned.memory.apm.host     provisioned.memory.pem.host
  provision.cpu.dos               provision.disk.fps              provision.memory.asm            provision.memory.sslo           provisioned.cpu.apm             provisioned.disk.avr            provisioned.memory.asm          provisioned.memory.sslo
  provision.cpu.em                provision.disk.gtm              provision.memory.asm.host       provision.memory.sslo.host      provisioned.cpu.asm             provisioned.disk.cgnat          provisioned.memory.asm.host     provisioned.memory.sslo.host
  provision.cpu.fps               provision.disk.host             provision.memory.avr            provision.memory.swg            provisioned.cpu.avr             provisioned.disk.dos            provisioned.memory.avr          provisioned.memory.swg
  provision.cpu.gtm               provision.disk.ilx              provision.memory.avr.host       provision.memory.swg.host       provisioned.cpu.cgnat           provisioned.disk.em             provisioned.memory.avr.host     provisioned.memory.swg.host
  provision.cpu.host              provision.disk.lc               provision.memory.cgnat          provision.memory.tam            provisioned.cpu.dos             provisioned.disk.fps            provisioned.memory.cgnat        provisioned.memory.tam
  provision.cpu.ilx               provision.disk.ltm              provision.memory.cgnat.host     provision.memory.tam.host       provisioned.cpu.em              provisioned.disk.gtm            provisioned.memory.cgnat.host   provisioned.memory.tam.host
  provision.cpu.lc                provision.disk.pem              provision.memory.dos            provision.memory.tmos           provisioned.cpu.fps             provisioned.disk.host           provisioned.memory.dos          provisioned.memory.tmos
  provision.cpu.ltm               provision.disk.sslo             provision.memory.dos.host       provision.memory.tmos.host      provisioned.cpu.gtm             provisioned.disk.ilx            provisioned.memory.dos.host     provisioned.memory.tmos.host
  provision.cpu.pem               provision.disk.swg              provision.memory.em             provision.memory.ui             provisioned.cpu.host            provisioned.disk.lc             provisioned.memory.em           provisioned.memory.ui
  provision.cpu.sslo              provision.disk.tam              provision.memory.em.host        provision.memory.urldb          provisioned.cpu.ilx             provisioned.disk.ltm            provisioned.memory.em.host      provisioned.memory.urldb
  provision.cpu.swg               provision.disk.tmos             provision.memory.fps            provision.memory.urldb.host     provisioned.cpu.lc              provisioned.disk.pem            provisioned.memory.fps          provisioned.memory.urldb.host
  provision.cpu.tam               provision.disk.urldb            provision.memory.fps.host       provision.memory.vcmp           provisioned.cpu.ltm             provisioned.disk.sslo           provisioned.memory.fps.host     provisioned.memory.vcmp
  provision.cpu.tmos              provision.disk.vcmp             provision.memory.gtm            provision.memory.vcmp.host      provisioned.cpu.pem             provisioned.disk.swg            provisioned.memory.gtm          provisioned.memory.vcmp.host

root@(TEST-F5-01)(cfg-sync In Sync)(Active)(/Common)(tmos)#  list sys db provision.cpu.asm
sys db provision.cpu.asm {
    value "0"
}

root@(TEST-F5-01)(cfg-sync In Sync)(Active)(/Common)(tmos)#  list sys db provision.memo
Configuration Items:
  provision.memory.afm          provision.memory.apm.host     provision.memory.cgnat        provision.memory.em.host      provision.memory.host         provision.memory.ltm          provision.memory.sslo.host    provision.memory.tmos         provision.memory.vcmp
  provision.memory.afm.host     provision.memory.asm          provision.memory.cgnat.host   provision.memory.fps          provision.memory.ilx          provision.memory.ltm.host     provision.memory.swg          provision.memory.tmos.host    provision.memory.vcmp.host
  provision.memory.am           provision.memory.asm.host     provision.memory.dos          provision.memory.fps.host     provision.memory.ilx.host     provision.memory.pem          provision.memory.swg.host     provision.memory.ui
  provision.memory.am.host      provision.memory.avr          provision.memory.dos.host     provision.memory.gtm          provision.memory.lc           provision.memory.pem.host     provision.memory.tam          provision.memory.urldb
  provision.memory.apm          provision.memory.avr.host     provision.memory.em           provision.memory.gtm.host     provision.memory.lc.host      provision.memory.sslo         provision.memory.tam.host     provision.memory.urldb.host

root@(TEST-F5-01)(cfg-sync In Sync)(Active)(/Common)(tmos)#  list sys db provision.memory.ltm
Configuration Items:
  provision.memory.ltm        provision.memory.ltm.host

root@(TEST-F5-01)(cfg-sync In Sync)(Active)(/Common)(tmos)#  list sys db provision.memory.ltm
Display all 2568 items? (y/n) n

Options:
  all-properties           non-default-properties   one-line                 |
Properties:
  default-value            scf-config               value                    value-range              {

root@(TEST-F5-01)(cfg-sync In Sync)(Active)(/Common)(tmos)#  list sys db provision.memory.ltm
sys db provision.memory.ltm {
    value "0"
}
root@(TEST-F5-01)(cfg-sync In Sync)(Active)(/Common)(tmos)#  list sys db provision.memory.ltm.host
sys db provision.memory.ltm.host {
    value "0"
}
root@(TEST-F5-01)(cfg-sync In Sync)(Active)(/Common)(tmos)# 

for example and just for reference purpose

Modify Management provisioning using tmsh

You can modify Management (mgmt) provisioning from the command line where Small equals 0 MB, Medium equals 200 MB, and Large equals 500 MB.

Important: Reprovisioning will cause the system to reboot, causing an outage.

1. Open the TMOS Shell (tmsh).tmsh
2. Type tmsh modify sys db provision.extramb value 500
   
   Important: Provisioning the mgmt plane to large and performing a ConfigSync might cause an outage on the peer unit. See K31326690 for more information on this issue.
   
   
   

   To increase Tomcat memory run the following:
   
   1. tmsh modify /sys db provision.tomcat.extramb value 256
   
      To view change run this command:
   2.tmsh list sys db provision.tomcat.extramb
   
   3.bigstart restart tomcat

   Additional Information

   Note: Restjavad may need increased memory also since this is used in-conjunction with the GUI to make rest calls in the background when making configuration changes to the database.

   Giving restjavad extra memory. This is a two-step process.

   1. Update memory allocated to the control plane using TMUI. System :
      
      Note: Resource Provisioning. The line for Management has a drop-down box forSmall,Medium, or Large.
      
      2. Run the following two commands, in sequence:
      
         tmsh modify sys db restjavad.useextramb value true
      
         bigstart restart restjavad
      
      Check this article for more details:
   https://my.f5.com/manage/s/article/K36854345