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various wording improvement

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Signed-off-by: Thomas Lamprecht <t.lamprecht@proxmox.com>
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Thomas Lamprecht 2017-10-13 13:00:43 +02:00 committed by Fabian Grünbichler
parent d9a27ee1c8
commit 7dd7a0b711
2 changed files with 11 additions and 12 deletions
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8
ha-manager.adoc
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@ -760,10 +760,10 @@ actions between the cluster and the local resource manager. For restarting,
the LRM makes a request to the CRM to freeze all its services. This prevents
that they get touched by the Cluster during the short time the LRM is restarting.
After that the LRM may safely close the watchdog during a restart.
Such a restart happens on a update and as already stated a active master
CRM is needed to acknowledge the requests from the LRM, if this is not the case
the update process can be too long which, in the worst case, may result in
a watchdog reset.
Such a restart happens normally during a package update and, as already stated,
an active master CRM is needed to acknowledge the requests from the LRM. If
this is not the case the update process can take to long which, in the worst
case, may result in a reset triggered by he watchdog.
Node Maintenance

15
qm.adoc
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@ -230,14 +230,13 @@ virtual cpus, as for each virtual cpu you add, Qemu will create a new thread of
execution on the host system. If you're not sure about the workload of your VM,
it is usually a safe bet to set the number of *Total cores* to 2.
NOTE: It is perfectly safe to set the _overall_ number of total cores in all
your VMs to be greater than the number of of cores you have on your server (i.e.
4 VMs with each 4 Total cores running in a 8 core machine is OK) In that case
the host system will balance the Qemu execution threads between your server
cores just like if you were running a standard multithreaded application.
However {pve} will prevent you to allocate on a _single_ machine more vcpus than
physically available, as this will only bring the performance down due to the
cost of context switches.
NOTE: It is perfectly safe if the _overall_ number of cores from all your VMs
is greater than the number of cores on the server (e.g., 4 VMs with each 4
cores on a machine with only 8 cores). In that case the host system will
balance the Qemu execution threads between your server cores, just like if you
were running a standard multithreaded application. However, {pve} will prevent
you to assign more virtual CPU cores than physically available, as this will
only bring the performance down due to the cost of context switches.
[[qm_cpu_resource_limits]]
Resource Limits