My backup systems are Solaris, I have the "luxury" of vxfs filesystems
for my staging & database areas.
 
I do however back up Windows file servers, Are there any guidelines to
NTFS volumes that people would recommend ?
 
I thinking along the lines:

        Defragmenting,
        Number of streams,
        LUN Virtulization tech,
        Volume Sizes,
        Maintaining free space,
        Snapshot methods,
        impact of ohh sooo many small files
         
        Performance improvements with Advanced client / Flashbackup,
        SAN Media server,
        (For the adventurous) SAN client ?

For example, i currently have pain with about a dozen windows clients,
from what i can tell

        we do not do defragmentaion
        their LUNS live on HP EVA's sharing spindles with hosts
        Free Space is minimum (~7%)
        Volumes are only ~500GB
        We backup with Multiple streams (Exceeds weekend (and daily)
backup window if we don't (Windows are large)
        
 
Currently backing up the windows dataservers is a pain point for me, I
am interested in hearing peoples learnings / Golden rules when it comes
to backing up large (over 500GB) NTFS Volumes.
 
Adam Mellor
Senior Unix Support Analyst
CF IT TECHNOLOGY SERVICES
Woodside Energy Ltd.


________________________________

From: Ed Wilts [mailto:ewilts AT ewilts DOT org] 
Sent: Thursday, 14 February 2008 1:17 PM
To: Mellor, Adam A.
Cc: VERITAS-BU AT mailman.eng.auburn DOT edu
Subject: Re: [Veritas-bu] Defrag DSU?


On Feb 13, 2008 6:22 PM, Mellor, Adam A. <Adam.Mellor AT woodside.com DOT au>
wrote:


        Although I am not currently defragmenting my current DSU
volumes, I
        previously had ~4TB in a single DSU under NBU 5.1 . This volume
was
        running vxfs 


vxfs says it all, you lucky guy.  NTFS just sucks...  try a 4TB DSSU on
Windows and see how much fun you have.

I do like your idea of dropping the threshold to a low value to empty it
out more frequently though.


   .../Ed

-- 
Ed Wilts, Mounds View, MN, USA
mailto:ewilts AT ewilts DOT org 

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