Hey,
I guess you are using a clustering product which is not Legato-aware.
The problem you are experiencing can be explained as follows :
- networker asks for a filesystem pertaining to a virtual host / ip
- the local client runs the save command which returns the physical
hostname instead of the virtual hostname, as networker cannot
interrogate your cluster
- the data is then stored in the networker database using the physical
hostname
- the next time you run the savegrp, networker sees that there is no
full backup for the virtual hostname (since in the database there is
only the physical hostname), and asks a full backup again.
and so on, and so on..
I solved this problem for a customer by creating a shell script
/usr/sbin/lcmap
That returns the virtual hostname to filesystem map in networker's RAP format.
# man lcmap
is your friend :)
--- start script ---
#!/bin/bash
cat <<EOF
type: NSR_CLU_TYPE;
clu_type: NSR_LC_TYPE;
interface version: 1.0;
type: NSR_CLU_VIRTHOST;
hostname: samba-cluster;
owned paths: /samba;
type: NSR_CLU_VIRTHOST;
hostname: imagine;
owned paths: /apache, /imagine, /vmware, /squid;
EOF
--- end script ---
Quoting Nicole Skyrca <nskyrca AT SYR DOT EDU>:
Hello,
I have two RedHat Enterprise Linux v. 2.4.21 that are setup in a
cluster. Each server has local disks for the operating system, and
the data is on a shared filesystem that is mounted from the SAN, but
this filesystem is only mounted on the "primary" server. Each
physical node in the cluster (db-server02a and db-server02b) is
configured as a client in Networker, and backs up all savesets. I
configured a client for the virutual cluster name (db-server02) and
it only backs up the filesystem from the SAN.
The backup schedule is full once a month, incremental the rest of the
month. Everytime I do a backup of the virtual machine, it does a full
backup, even when it's scheduled for an incremental. The following is
from the logs:
12/05/05 12:04:52 nsrd: savegroup info: db-server02.syr.edu:/mysql:
No full backups of this save set were found in the media database;
performing a full backup
When I run mminfo, I don't see anything for db-server02, but do I see
the entries for the SAN filesystem in db-server02a.
How do I backup the SAN filesystem with the vitual machine name so
that it doesn't do a full backup every time?
I tried adding the file pathownerignore in the /usr/sbin directory as
per the pathownerignore man page, but that didn't change the behavior.
A message in the Networker archives that suggested to "put "save -c
virtual-name" in the Backup Command filed in the Remote tab." I've
never put anything besides "savepnpc" in that field, so I don't think
I fully understand what it's doing. Does this work? Has anyone had
problems with it?
My backup server is running Solstice Backup 6.1.4 Build 562 on Solaris 8.
Thanks!
Nicole
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