ZFS Networker
From Lolly's Wiki
Kategorie:ZFS Kategorie:Solaris
Backup of ZFS snapshots on Solaris Cluster with Legato/EMC Networker
This describes how to setup a backup of the Solaris Cluster resource group named sample-rg.
The structure of my RGs is always:
RG: <name>-rg ZFS-HASP: <name>-hasp-zfs-res Logical Host: <name>-lh-res Logical Host Name: <name>-lh ZPOOL: <name>_pool
I used the bash as shell.
Define variables used in the following command lines
# NAME=sample
# RGname=${NAME}-rg
# NetworkerGroup=$(echo ${NAME} | tr 'a-z' 'A-Z' )
# ZPOOL=${NAME}_pool
# ZPOOL_BASEDIR=/local/${RGname}
Define a resource for Networker
What we need now is a resource definition in our Networker directory like this:
# zfs create ${ZPOOL}/nsr
# mkdir ${ZPOOL_BASEDIR}/nsr/{bin,log,res}
# cat > /local/${RGname}/nsr/res/${NetworkerGroup}.res <<EOF
type: savepnpc;
precmd: "/local/${RGname}/nsr/bin/networker_precmd.sh >/local/${RGname}/nsr/log/networker_precmd.log 2>&1";
pstcmd: "/local/${RGname}/nsr/bin/networker_pstcmd.sh >/local/${RGname}/nsr/log/networker_pstcmd.log 2>&1";
timeout: "12:00pm";
abort precmd with group: Yes;
EOF
And now create a link on every node to this file
# ln -s /local/${RGname}/nsr/res/${NetworkerGroup}.res /nsr/res/${NetworkerGroup}.res
Registering new resource type LGTO.clnt
1. Install Solaris client package LGTOclnt 2. Register new resource type in cluster. One one node do:
# clrt register -f /usr/sbin/LGTO.clnt.rtr LGTO.clnt
Now you have a new resource type LGTO.clnt in your cluster.
Create client resource of type LGTO.clnt
So I use scripts like this:
# RGname=sample-rg
# clrs create \
-t LGTO.clnt \
-g ${RGname} \
-p Resource_dependencies=$(basename ${RGname} -rg)-hasp-zfs-res \
-p clientname=$(basename ${RGname} -rg)-lh \
-p Network_resource=$(basename ${RGname} -rg)-lh-res \
-p owned_paths=/local/${RGname} \
$(basename ${RGname} -rg)-nsr-res
This expands to:
# clrs create \
-t LGTO.clnt \
-g sample-rg \
-p Resource_dependencies=sample-hasp-zfs-res \
-p clientname=sample-lh \
-p Network_resource=sample-lh-res \
-p owned_paths=/local/sample-rg \
sample-nsr-res
Now we have a client name to which we can connect: sample-lh