You said the file system is NFS mounted. Does that mean there is a NAS server?
To go fast with millions of files you either have to journal or do a block level backup. If the file system is owned by a dedicated NAS device NDMP may be the answer. If the file system is owned by an OS that can journal then that is an option. If the file system is owned by a virtual server then an image backup from the host is an option. Andy Huebner -----Original Message----- From: ADSM: Dist Stor Manager [mailto:[email protected]] On Behalf Of Arbogast, Warren K Sent: Monday, August 06, 2012 3:13 PM To: [email protected] Subject: [ADSM-L] Slow backup There is a Linux fileserver here that serves web content. It has 21 million files in one filesystem named /ip. There are over 4,500 directories at the second level of the filesystem. The server is running the 6.3.0.0 client, and has 2 virtual cpus and 16 GB of RAM. Resourceutilization is set to 10, and currently there are six client sessions running. I am looking for ways to accelerate the backup of this server since currently it never ends. The filesystem is NFS mounted so a journal based backup won't work. Recently, we added four proxy agents, and are splitting up the one big filesystem among them using include/exclude statements. Here is one of the agent's include/exclude files. exclude /ip/[g-z]*/.../* include /ip/[a-f]*/.../* __Since we added the proxies the proxy backups are copying many thousands of files, as if this were the first backup of the server as a whole. Is that expected behavior? __Recently, the TSM server database is growing faster than it usually does, and I'm wondering whether there could be any correlation between the ultra long running backup, many thousands of files copied, and the faster pace of the database growth. __The four proxies haven't made a big difference in the run time of the backup. Could something else be done to speed it up? Thank you, Keith Arbogast Indiana University This e-mail (including any attachments) is confidential and may be legally privileged. If you are not an intended recipient or an authorized representative of an intended recipient, you are prohibited from using, copying or distributing the information in this e-mail or its attachments. If you have received this e-mail in error, please notify the sender immediately by return e-mail and delete all copies of this message and any attachments. Thank you.
