Re: [ADSM-L] Question on Collocation
2017-11-09 11:34:06
Thanks Marc! Very helpful!!
-----Original Message-----
From: ADSM: Dist Stor Manager [mailto:ADSM-L AT VM.MARIST DOT EDU] On Behalf Of
Marc Lanteigne
Sent: Thursday, November 09, 2017 8:15 AM
To: ADSM-L AT VM.MARIST DOT EDU
Subject: Re: [ADSM-L] Question on Collocation
Hi Jennifer,
> I removed the node from the collocation group and added it to the
> new
collocation group
The way you did it, or just not part of a group gives the same result. So your
way was good, I wasn't trying to say it wasn't, just that you could have saved
a few steps and get the same end result.
> Will the move nodedata command move the data from the tapes in the old
collocation group to tapes in the new collocation group?
Yes, but not exactly the way you describe it. Keep in mind that the server is
only using collocation settings when writing data, but not when reading it.
When reading, it doesn't look at collocation settings, it reads the data from
wherever it is.
The move nodedata will read the client data and will move it onto new volumes
following the collocation settings for the storage pool and the node. Details
here:
https://www.ibm.com/support/knowledgecenter/SSEQVQ_8.1.2/srv.reference/r_cmd_nodedata_allfs_move.html
-
Thanks,
Marc...
________________________________________________________
Marc Lanteigne
Accelerated Value Specialist for Spectrum Protect
416.478.0233 | marclanteigne AT ca.ibm DOT com
Office Hours: Monday to Friday, 7:00 to 16:00 Eastern
Follow me on: Twitter, developerWorks, LinkedIn
-----Original Message-----
From: Drammeh, Jennifer C [mailto:jdrammeh AT U.WASHINGTON DOT EDU]
Sent: Thursday, November 9, 2017 12:00 PM
To: ADSM-L AT VM.MARIST DOT EDU
Subject: Re: [ADSM-L] Question on Collocation
Marc,
I removed the node from the collocation group and added it to the new
collocation group - where it resides by itself. Will the move nodedata command
move the data from the tapes in the old collocation group to tapes in the new
collocation group? Also, do you know how to initiate a FULL new backup of the
entire system.
Thanks!
Jennifer
-----Original Message-----
From: ADSM: Dist Stor Manager [mailto:ADSM-L AT VM.MARIST DOT EDU] On Behalf Of
Marc Lanteigne
Sent: Friday, November 03, 2017 3:07 PM
To: ADSM-L AT VM.MARIST DOT EDU
Subject: Re: [ADSM-L] Question on Collocation
Hi Jennifer,
The backup always only applies to the filesystem backup, not systemstate.
You’ll have to change the mode of the systemstate backup to get a full.
Or use move nodedata to move it all together.
BTW, you would just have needed to remove the node from the collocation group.
Nodes not in a collocation group are collocated by node.
Marc...
Sent from my iPhone using IBM Verse
On Nov 3, 2017, 6:11:07 PM, jdrammeh AT U.WASHINGTON DOT EDU wrote:
From: jdrammeh AT U.WASHINGTON DOT EDU
To: ADSM-L AT VM.MARIST DOT EDU
Cc:
Date: Nov 3, 2017, 6:11:07 PM
Subject: [ADSM-L] Question on Collocation
I use collocation and I have a node where the System Admin has requested that
his data from a particular node be isolated on tapes by itself. I created a
collocation group and have associated this one node with the new group. This
node had previously been backing up to a different collocation group. I created
a new Policy Domain and associated the node with it as well. This policy domain
is set to send the data direct to tape instead of going to our diskpool. I also
modified the settings on the server to allow this system to have 2 mount points.
I had the SA launch a "full" manual backup from the GUI - using the "Always
Backup" option. Here are the problems I am seeing.
1. I can see that the system state data when to a tape that was
already used by other nodes (which tells me the collocation is not working)
2. It only mounted 1 tape in a drive while performing the backup
3. The metrics at the end showed that it inspected 283 GB of data
and only transferred 175 GB which means it did not actually perform a full
backup.
Any ideas to help get a FULL backup of this data alone on a single 1 or 2
tapes and ideally using multiple tape drives to speed things up? (for backup
and restore) Thanks!
Jennifer
|
ADSM.ORG Privacy and Data Security by KimLaw, PLLC
|