Re: [ADSM-L] NAS Backup

Eric,

When a NAS/NDMP backup start, there is a query from the datamover to the TSM Server requesting space for the backup. It doesn't matter if you are doing full's or incremental, the datamover uses that same storage requirement for both.

example:
you have 100TB of NAS used space total. To do a full would require 100TB + 10% of space available on the TSM server. That's pretty straight forward. The muddy area is when you are attempting to perform incremental backups. When requesting space, the space that is requested is equal to the total space used, which would be 100TB + 10%, this happens even though an incremental will take place. This can cause incremental backups to be mixed with Full backup storage.

Best Regards,

_________________________________________________________

email: ron.delaware AT us.ibm DOT com

From: "McWilliams, Eric" <emcwilliams AT MEDSYNERGIES DOT COM>
To: ADSM-L AT VM.MARIST DOT EDU
Date: 05/18/15 11:48
Subject: [ADSM-L] NAS Backup
Sent by: "ADSM: Dist Stor Manager" <ADSM-L AT VM.MARIST DOT EDU>

How does the NAS backup determine if there is enough space to back up the data to? I'm currently backing up an EMC Isilon directly to tape (I know, I know, you don't have to tell me!) and am getting an error that there is not enough space in the storage pool. ANR1072E NAS Backup to TSM Storage process 8 terminated - insufficient space in destination storage pool. (SESSION: 5226, PROCESS: 8) I'm only backing up around 9TB so there should be more than enough space in the tape library. This has worked well up until last week. Thanks Eric ********************************************************************** *** CONFIDENTIALITY NOTICE *** This message and any included attachments are from MedSynergies, Inc. and are intended only for the addressee. The contents of this message contain confidential information belonging to the sender that is legally protected. Unauthorized forwarding, printing, copying, distribution, or use of such information is strictly prohibited and may be unlawful. If you are not the addressee, please promptly delete this message and notify the sender of the delivery error by e-mail or contact MedSynergies, Inc. at postmaster AT medsynergies DOT com.