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80.000.000 small files: How to backup?

Updated: 23 May 2010 | 6 comments
Fred2010's picture
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Hi,

We have a SAN attached server which has a LUN with well over 80.000.000 very small files.

I'm wondering how to backup this one, and would like your input on this.

The SAN is a Dell/EMC Clariion CX380 (4Gbps) and the LUN is on a Windows 20003 server (2TB in size).

The SAN has Snapshot & mirroring licenses installed (Although I have no room for a full mirror ;) )

Out of this size approx. 1TB is in use right now for the 80.000.000 files.

We are using Netbackup 6 MP4 on a Windows 2003 server on a Sun/StorageTek SL8500 with T10000 drives.

My questions:

1) Should I make it a SAN Media server, with local staging?
2) I understand there is an 'Advanced Client' available. Could I use this client in this case and how does it work?

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Stumpr's picture
26
Jan
2007
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back em up, back em up. raw, raw, raw!

Bob Stump VERITAS - "Ain't it the truth?" Incorrigible punster -- Do not incorrige

Fred2010's picture
26
Jan
2007
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Raw eh?

\\.\drive:

Unfortunately it is a database that keep hacking on the volume all night :(

Don't RAWs fail if the volume is busy as well?

Also, how can I restore from RAWs?

Stumpr's picture
26
Jan
2007
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Yes, ideally you would do a cold backup. You would restore the entire raw device.

Consider flash backup. I think it is part of the Advanced Client option

Perhaps you can benefit from this:
DOCUMENTATION: How to configure backup for maximum throughput when a volume or folder contains millions of small files.
http://support.veritas.com/docs/275912

DOCUMENTATION: Why are file system restores are running very slow with large number of small files?
http://support.veritas.com/docs/279061Message was edited by:
Bob Stump

Bob Stump VERITAS - "Ain't it the truth?" Incorrigible punster -- Do not incorrige

Stumpr's picture
26
Jan
2007
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VERITAS NetBackup (tm) 6.0 Advanced Client System Administrator's Guide for UNIX and Windows
http://support.veritas.com/docs/279289

VERITAS NetBackup (tm) 6.0 Advanced Client Quick Start Guide for UNIX and Windows
http://support.veritas.com/docs/279290

Veritas NetBackup (tm) 6.0 Advanced Client Configuration (formerly AdvancedClient_ConfigNotes)
http://support.veritas.com/docs/279211

There are a lots and lots of docs on AC

Bob Stump VERITAS - "Ain't it the truth?" Incorrigible punster -- Do not incorrige

Anthony Langdon's picture
26
Jan
2007
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What database is it?

Tony

Dennis Strom's picture
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Jan
2007
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Bob's correct I think. go flash.