Use service foo rather than calling init scripts directly

[mirror/dsa-wiki.git] / input / howto / install-ganeti.creole

diff --git a/input/howto/install-ganeti.creole b/input/howto/install-ganeti.creole
index 118aa03..5f9734f 100644 (file)
--- a/input/howto/install-ganeti.creole
+++ b/input/howto/install-ganeti.creole
@@ -124,17 +124,6 @@ On each node, create a volume group:
     vgcreate vg_ganeti /dev/cciss/c0d0p3
 }}}
 
-=== create kvmU symbolic links ===
-
-On each node, create vmlinuz and initrd symlinks as expected by the kvm
-hypervisor (not strictly required if all guests will boot from their own
-kernels):
-
-{{{
-    ln -s -T /boot/vmlinuz-2.6.32-5-amd64 /boot/vmlinuz-2.6-kvmU
-    ln -s -T /boot/initrd.img-2.6.32-5-amd64 /boot/initrd.img-2.6-kvmU
-}}}
-
 === exchange ssh keys ===
 
 on each node:
@@ -162,7 +151,7 @@ On the master node (foo) only:
       --mac-prefix 00:16:37 \
       --no-ssh-init \
       --no-etc-hosts \
-      --hypervisor-parameters kvm:initrd_path=/boot/initrd.img-2.6-kvmU,kernel_path=/boot/vmlinuz-2.6-kvmU \
+      --hypervisor-parameters kvm:initrd_path=,kernel_path= \
       foobar.debian.org
 }}}
 
@@ -366,3 +355,22 @@ And you want to convert it to use DRBD afterwards and start it on the other clus
       --hypervisor-parameters kvm:initrd_path=,kernel_path= \
       --net 0:ip=206.12.19.124 -n rossini.debian.org reger.debian.org
 }}}
+
+* How to add new LUNs to Bytemark Cluster
+
+{{{
+  + Add a new LUN in the MSA and export it to all blades
+
+  then:
+  gnt-cluster command "echo 1 > /sys/bus/pci/devices/0000:0e:00.0/cciss0/rescan"
+  
+  then:
+  reload multipath-tools on gnt-master (normaly bm-bl1):
+  service multipath-tools reload
+  add the WWNs to dsa-puppet/modules/multipath/files/bm-multipath.conf and define the alias and commit that file to git.
+
+  then:
+  gnt-cluster command "puppet agent -t"
+
+  This will update the multipath config on all cluster nodes. WITHOUT doing this, you can't migrate VMs between nodes.
+}}}