Obsolete MBA7 cluster testing instructions (English)

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Revision as of 10:21, 29 April 2020 (view source) Jon (Talk | contribs) ← Older edit		Current revision as of 11:40, 29 April 2020 (view source) Jon (Talk | contribs)
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-	=== Testování virtualizovaného kernelu v DRBD clusteru ===	+	=== Testing a virtualized kernel in a DRBD cluster ===
-	IP adresa prvního uzlu (hostitel):	+	IP address of the first node (host):
	10.48.1.29		10.48.1.29
-	IP adresa druhého uzlu:	+	IP address of the second node:
	10.48.1.25		10.48.1.25
-	IP adresa virtualizovaného kernelu:	+	Virtualized kernel IP address:
	10.48.1.47		10.48.1.47
-	grafický správce virtuálních strojů:	+	graphical virtual machine manager:
	virt-manager		virt-manager
-	Stav virtuálních strojů:	+	Status of virtual machines:
	virsh list --all		virsh list --all
-	Nastartování virtuálního kernelu:	+	To start the virtual kernel:
	virsh start plcmba7krnl		virsh start plcmba7krnl
-	Vypnutí (korektní):	+	Shutdown (correct):
	virsh shutdown plcmba7krnl		virsh shutdown plcmba7krnl
-	Vypnutí (vytržení šňůry):	+	Switching off (pulling the cord):
	virsh destroy plcmba7krnl		virsh destroy plcmba7krnl
-	Pozastavení (v RAM zůstává):	+	Pause (remains in RAM):
-	virsh suspend plcmba7krnl	+	virsh suspend plcmba7krnl:
-	Obnovení činnosti:	+	Resumption of activity:
	virsh resume plcmba7krnl		virsh resume plcmba7krnl
-	Hibernace:	+	Hibernation:
	virsh managedsave plcmba7krnl		virsh managedsave plcmba7krnl
-	Probuzení z hibernace:	+	Awakening from hibernation:
	virsh start plcmba7krnl		virsh start plcmba7krnl
-	Stav DRBD úložiště:	+	DRBD storage status:
	drbd-overview		drbd-overview
-	Připojení úložiště:	+	Storage connection:
	mount /opt		mount /opt
-	Odpojení úložiště:	+	Disconnect storage:
	umount /opt		umount /opt
-	Vypnutí úložiště na tomto uzlu:	+	To turn off storage on this node:
	drbdadm down all		drbdadm down all
-	Zapnutí úložiště na tomto uzlu:	+	To turn on storage on this node:
	drbdadm up all		drbdadm up all
-	Změna role úložiště na tomto uzlu na sekundární ("slave", nemůže být připojeno)	+	Change the storage role on this node to secondary ("slave", cannot be mounted)
	drbdadm secondary all		drbdadm secondary all
-	Změna role úložiště na tomto uzlu na primární ("master", může být připojeno)	+	Change the storage role on this node to primary ("master" can be mounted)
	drbdadm primary all		drbdadm primary all
-	==Typický test==	+	==Typical test==
-	Na 10.48.1.29:	+	At 10.48.1.29:
	virsh -c qemu:///system destroy plcmba7krnl		virsh -c qemu:///system destroy plcmba7krnl
	umount /opt		umount /opt
-	Na 10.48.1.25:	+	At 10.48.1.25:
	drbdadm primary all		drbdadm primary all
	mount /opt		mount /opt
	virsh -c qemu:///system start plcmba7krnl		virsh -c qemu:///system start plcmba7krnl

---

Current revision as of 11:40, 29 April 2020

Testing a virtualized kernel in a DRBD cluster

IP address of the first node (host):

10.48.1.29

IP address of the second node:

10.48.1.25

Virtualized kernel IP address:

10.48.1.47

graphical virtual machine manager:

virt-manager

Status of virtual machines:

virsh list --all

To start the virtual kernel:

virsh start plcmba7krnl

Shutdown (correct):

virsh shutdown plcmba7krnl

Switching off (pulling the cord):

virsh destroy plcmba7krnl

Pause (remains in RAM):

virsh suspend plcmba7krnl:

Resumption of activity:

virsh resume plcmba7krnl

Hibernation:

virsh managedsave plcmba7krnl

Awakening from hibernation:

virsh start plcmba7krnl

DRBD storage status:

drbd-overview

Storage connection:

mount /opt

Disconnect storage:

 umount /opt

To turn off storage on this node:

drbdadm down all

To turn on storage on this node:

drbdadm up all

Change the storage role on this node to secondary ("slave", cannot be mounted)

drbdadm secondary all

Change the storage role on this node to primary ("master" can be mounted)

drbdadm primary all

Typical test

At 10.48.1.29:

virsh -c qemu:///system destroy plcmba7krnl
umount /opt

At 10.48.1.25:

drbdadm primary all
mount /opt
virsh -c qemu:///system start plcmba7krnl