Currently I specify the .RO volume in the query, so I run one cloning
process for each adv_file device as I have enough tape drives to do
that.
Perhaps you don't want to do that, eg you want to clone sets in client
order, or you only have one drive to clone to. To do it this way I have
in the past set the Location on the volumes to something different like
'Readonly' for the .RO volumes and 'ReadWrite' for the real volumes -
then the mminfo query can have location=Readonly in it...
Querying for copies=2 is the right thing to do, but note well that an
aborted clone can result in ssid's with copies=3 - you need to check for
and delete aborted tape clones regularly so the cloning query will retry
those sets.
-----Original Message-----
From: Legato NetWorker discussion [mailto:NETWORKER AT listserv.temple DOT edu]
On Behalf Of Kevin West
Sent: Wednesday, 16 November 2005 10:05 AM
To: NETWORKER AT listserv.temple DOT edu
Subject: [Networker] mminfo Staging & cloning from adv_file
Implementing new backup hardware infrastructure for the organization I
work for (was complete last week).
A new networker option was added to this infrastructure, backup to disk
(adv_file) for numerous benefits.
At this stage I am using the standard cloning and staging technique
within networker.
I am now investigating scripting the cloning and staging processes.
System brief:
Networker 7.2.1
Redhat AS3
4 x disk devices
The first problem I ran across is this:
When you setup a disk device a read only device is also setup, for
example:
/nsrdisk/01 adv_file disk.01
/nsrdisk/01/_AF_readonly adv_file disk.01.RO
I want to clone the save sets from the disk devices, so I should use the
mminfo command for example: mminfo -avV -omt -r 'ssid' -q 'family=disk,
copies=1'
Returns: mminfo: no matches found for the query But if I use the
following command: mminfo -avV -omt -r 'ssid' -q 'family=disk, copies=2'
This command returns ssid information I am after, but from both devices
(the write and read devices) so I have duplicate ssid's returned.
Questions:
How do I use mminfo to query the disk devices and return only one ssid?
(I really don't want to put each device in the script, if the device
setup changes someone will have to remember to change the script)
Should I only clone from the read only devices?
The same questions apply to staging.
Thanks in advance.
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