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Operating Systems
Solaris
Guest LDOMS on same subnet cant ping eachother
Post 302938325 by selectstar on Saturday 14th of March 2015 11:08:49 AM
03-14-2015
Hi Peasant, again, I cant thank you enough for your input.
So what we actually have is a t5-2 which has two sockets, 2x two port FC Cards and 4x gigabit Ethernet ports.
As you said the machine is split right down the middle with each root complex owning exactly half of the hardware including local Hard drives.
What we have is:
1x Primary Control domain (Control, IO, Service). Obviously all LDOMS are managed from the Primary.
1x Secondary (Or what some people call 'Alternate') IO, Service domain which can see bare metal Storage.
Im sure im telling you what you already know but it help me explain it out
The idea of us have two IO, service domains (Priamry and Secondary) is that we can actually take one of them down (i.e for patching) and all Guest LDOMS will continue to run, route traffic in/out, see LUNS etc.
And this is the case. When i init 6 or shutdown the primary LDOM, all Guests continue to operate via the Secndary (Alternate) Domain. And vice-a-versa.
So when I create a guest LDOM, i make sure to create two VNET's, one pointing to the Primary VSW and the other to the Secondary VSW. And when creating new LDOMS, i alterante which switch vnet0 point to so that all traffic does always go through one switch.
And this is the same principle for DISKS, i use multipathing groups (MPGROUP) to ensure that guest can see LUNs from both IO, SERVICE domains.
I think you are correct about the IPMP guest settings, I am just reading up more about that.
I also don't pretend to completely understand the difference between the trunk policies (L2, L3 etc.). I am also doing some more reading on that.
FYI, we also have some T5-2 servers which not only have 2x two port FC cards but also 2x two port ehternet cards in addition to the 4x on board ethernet ports. These serers follow the same principle as the on i use in the original post, but onviously each root complex has 4 ethernet ports each for the trunk.
So what we actually have is a t5-2 which has two sockets, 2x two port FC Cards and 4x gigabit Ethernet ports.
As you said the machine is split right down the middle with each root complex owning exactly half of the hardware including local Hard drives.
What we have is:
1x Primary Control domain (Control, IO, Service). Obviously all LDOMS are managed from the Primary.
1x Secondary (Or what some people call 'Alternate') IO, Service domain which can see bare metal Storage.
Im sure im telling you what you already know but it help me explain it out
The idea of us have two IO, service domains (Priamry and Secondary) is that we can actually take one of them down (i.e for patching) and all Guest LDOMS will continue to run, route traffic in/out, see LUNS etc. And this is the case. When i init 6 or shutdown the primary LDOM, all Guests continue to operate via the Secndary (Alternate) Domain. And vice-a-versa.
So when I create a guest LDOM, i make sure to create two VNET's, one pointing to the Primary VSW and the other to the Secondary VSW. And when creating new LDOMS, i alterante which switch vnet0 point to so that all traffic does always go through one switch.
And this is the same principle for DISKS, i use multipathing groups (MPGROUP) to ensure that guest can see LUNs from both IO, SERVICE domains.
I think you are correct about the IPMP guest settings, I am just reading up more about that.
I also don't pretend to completely understand the difference between the trunk policies (L2, L3 etc.). I am also doing some more reading on that.
FYI, we also have some T5-2 servers which not only have 2x two port FC cards but also 2x two port ehternet cards in addition to the 4x on board ethernet ports. These serers follow the same principle as the on i use in the original post, but onviously each root complex has 4 ethernet ports each for the trunk.
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LEARN ABOUT DEBIAN
ocf_pacemaker_pingd
OCF_PACEMAKER_PINGD(7) Pacemaker Configuration OCF_PACEMAKER_PINGD(7) NAME
ocf_pacemaker_pingd - pingd resource agent SYNOPSIS
[OCF_RESKEY_pidfile=string] [OCF_RESKEY_user=string] [OCF_RESKEY_dampen=integer] [OCF_RESKEY_set=string] [OCF_RESKEY_name=string] [OCF_RESKEY_section=string] [OCF_RESKEY_multiplier=integer] [OCF_RESKEY_host_list=string] [OCF_RESKEY_interval=integer] [OCF_RESKEY_attempts=integer] [OCF_RESKEY_timeout=integer] [OCF_RESKEY_options=string] pingd [start | stop | monitor | meta-data | validate-all] DESCRIPTION
This agent (ocf:pacemaker:pingd) has been replaced by the more reliable ocf:pacemaker:ping. It records (in the CIB) the current number of ping nodes (specified in the 'host_list' parameter) a cluster node can connect to. SUPPORTED PARAMETERS
OCF_RESKEY_pidfile = string [/pingd-] PID file OCF_RESKEY_user = string [root] The user we want to run pingd as The user we want to run pingd as OCF_RESKEY_dampen = integer [5s] Dampening interval The time to wait (dampening) further changes occur OCF_RESKEY_set = string [] Set name The name of the instance_attributes set to place the value in. Rarely needs to be specified. OCF_RESKEY_name = string [pingd] Attribute name The name of the attributes to set. This is the name to be used in the constraints. OCF_RESKEY_section = string [] Section name The section place the value in. Rarely needs to be specified. OCF_RESKEY_multiplier = integer [] Value multiplier The number by which to multiply the number of connected ping nodes by OCF_RESKEY_host_list = string [] Host list The list of ping nodes to count. Defaults to all configured ping nodes. Rarely needs to be specified. OCF_RESKEY_interval = integer [1] ping interval in seconds How often, in seconds, to check for node liveliness OCF_RESKEY_attempts = integer [2] no. of ping attempts Number of ping attempts, per host, before declaring it dead OCF_RESKEY_timeout = integer [2] ping timeout in seconds How long, in seconds, to wait before declaring a ping lost OCF_RESKEY_options = string [] Extra Options A catch all for any other options that need to be passed to pingd. AUTHOR
Andrew Beekhof <andrew@beekhof.net> Author. Pacemaker Configuration 04/17/2012 OCF_PACEMAKER_PINGD(7)