ADSM-L

[ADSM-L] Comparing notes on NAS CIFS proxy backups.

2010-07-30 16:02:12
Subject: [ADSM-L] Comparing notes on NAS CIFS proxy backups.
From: "Allen S. Rout" <asr AT UFL DOT EDU>
To: ADSM-L AT VM.MARIST DOT EDU
Date: Fri, 30 Jul 2010 16:01:40 -0400
Hey there, O TSMers.

I'm chewing on some performance questions (We don't really know if
they're "problems" yet) with some of our NAS backups.  Basically, we
don't have broad enough experience to know if what we're seeing is
as-expected for the scale in question, or if there's a problem we
should start bug-hunting.

So I'm starting by showing you mine.

We've got an NS-G8 (EMC NAS gateway product) with a bunch of CLARIION
disk behind it.  There's a wide variety of stuff being served from it,
of which a moderate fraction is stuff we back up ourselves.  We're
mounting the shares on purpose-created VMWARE guests, and backing them
up with normal TSM clients.

Of course, we can't do journals, because it's the appliance, not the
backup machine, that 'owns' the disk.

here's a stab at occupancy, and incremental durations in hours and
minutes.  We're using 6.2.0 on the client, and 5.5.3 on the server.


Node Name  Type Filespace   FSID Storage    Number of  Physical   Logical
                Name             Pool Name      Files     Space     Space
                                                       Occupied  Occupied
                                                           (MB)      (MB)
---------- ---- ---------- ----- ---------- --------- --------- ---------
CNS-OSGBA- Bkup \\cns-ap--     1 C-3592     6,573,585 5348906.- 5252482.-
 CKUP            fs01\c$                                     25        67

~ 14:00

CNS-OSGBA- Bkup \\cns-fs0-     2 C-3592       712,305 738593.36 722661.97
 CKUP            1\c$

~ 1:30

CNS-OSGBA- Bkup \\cns-epi-     3 C-3592     1,637,228 2232987.- 2205766.-
 CKUP            -fs01\c$                                    55        29

~ 4:15

CNS-OSGBA- Bkup \\cns-mse-     4 C-3592       252,750 615611.81 614905.31
 CKUP            -fs01\c$

~ 0:45


Is this grossly similar to what you're seeing?  Am I slow?  Am I fast?



- Allen S. Rout

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