Scheduling template to run on specific host

Community Support
1

Hi!
I need to prioritize some templates to run on host called “vdevr”. In your documentation is said, that I have to append my template with following line: SCHED_RANK=“NAME = “vdevr””. But if I’m provisioning template, then it shows on all hosts, not prioritizing my “vdevr”. Below I attach my sched.conf file. Is it possible, that sched.conf overwrites my template SCHED_RANK setting? What should I do to prioritize “vdevr” above other hosts?

ONED_PORT = 1234
SCHED_INTERVAL = 5

MAX_VM       = 5000
MAX_DISPATCH = 10
MAX_HOST     = 2

LIVE_RESCHEDS  = 0

HYPERVISOR_MEM = 0.2    


DEFAULT_SCHED = [
   policy = 3,
   rank   = "FREEMEMORY"
]

LOG = [
  system      = "file",
  debug_level = 3
]

Thanks for your time, hope you can resolve my problem.

2

Could somebody help me? I need this solution till the end of the week.

3

Hi, You can select your desired host from scheduling menu when you create new template. Whit this option, all VMs deployed on this host.

Selection_016.png927×395 25.5 KB

4

Sorry but i didn’t told you that I have version 4.0.1 which doesn’t have such an option you’ve shown on screenshot. Is there any opportunity to prioritize VMs on version 4.0.1?

5

You can add this line to your template:
SCHED_REQUIREMENTS="ID=\"0\""
0 is your desired host ID.

6

Still nothing, templates doesn’t instantiate only on “vdevr” but also on other VMs.
Is there any other setting, which can influence template instantiation? I attach few lines from my oned.conf below if this could help you. Note that some lines are commented out.

#ENABLE_OTHER_PERMISSIONS = "YES"

DEFAULT_UMASK = 177

#*******************************************************************************
# Restricted Attributes Configuration
#*******************************************************************************
# The following attributes are restricted to users outside the oneadmin group
#*******************************************************************************

VM_RESTRICTED_ATTR = "CONTEXT/FILES"
VM_RESTRICTED_ATTR = "NIC/MAC"
VM_RESTRICTED_ATTR = "NIC/VLAN_ID"

#VM_RESTRICTED_ATTR = "RANK"
#VM_RESTRICTED_ATTR = "SCHED_RANK"
#VM_RESTRICTED_ATTR = "REQUIREMENTS"
#VM_RESTRICTED_ATTR = "SCHED_REQUIREMENTS"

IMAGE_RESTRICTED_ATTR = "SOURCE"