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Xenserver Patches 8 years 8 months ago #477

I have been running a 2 node pool with xen 6.2 and ha-lizard 1.7 iscsi-ha 1.4 on my production 2 node pool setup for over a year.

I have now built a new 2 node test pool running xen 6.5 with ha-lizard 1.8 and iscsi-ha 1.5. I actually ran the noSAN installer package for the automated setup and it worked flawlessly.

In regards to applying xenserver patches on the new test pool is this the proper procedure:
1. Disable HA for the pool
2. Put each server in ISCSI manual mode
3. Migrate all vm’s to the slave
4. Demote storage on the master to secondary and Promote storage on the slave to primary
5. Apply patches on the master
6. Start the master and migrate the vms back to it
7. Demote the slave as the primary storage role and promote the master master to the primary storage role
8. apply patches on the slave
9. Exit manual mode and enable HA

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Xenserver Patches 8 years 8 months ago #479

  • Salvatore Costantino
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Yes - that is the correct procedure. If you are applying the patches with the wizard in XenCenter make sure NOT to allow XenCenter to automatically perform the upgrade actions (ie. reboot, restart API, etc).. You should manage these tasks manually making sure that the pool storage is in the correct state when performing the action.

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Xenserver Patches 8 years 8 months ago #480

So it worked. i successfully patched both server. I did run into 2 small hiccups. After patching the master and rebooting.

I had to put the master into the primary storage role before it would connect to the ISCSI SR and make the slave the secondary storage role. before i could migrate the vm's back to the master

Also after patching the slave it took two reboots before I could repair the ISCSI SR in xenserver so it could connect again as well

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Xenserver Patches 7 years 2 weeks ago #1258

Hi,
I just run the test of this process on the clean installation.
Everything runs fine until the step 8 when patching the slave.
when I run: xe patch-upload file-name=XS65ESP1.xsupdate
The process never finishes.

The only way to patch it, was to take the slave out of the pool, patch it and then add to the pool, but then it cannot connect to iscsi.

How do I resolve it?
What is the correct state of the pool and how would I verify it?

Thank you.

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Xenserver Patches 7 years 2 weeks ago #1260

  • Salvatore Costantino
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The slave may have lost its replication ip when it was removed from the pool. Check the networking settings making sure that the replication ip is set on the slave

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Xenserver Patches 7 years 2 weeks ago #1263

Thank you.
When I am in step 8 i can ping 10.10.10.1,2,3 from the slave.
So the connection is there, still does not finish the upload.

Now if you are referring to the situation when I move the slave out of the pool then what would I do?
Go to networking and recreate the bonded network for slave?

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