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NetApp Quick Glance Monitoring
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  1. NetApp Quick Glance Monitoring Customer Written Application Frank Bounds Sealy, Inc.

  2. Brief Company Background • Sealy, Inc. -- Manufacturing (mattresses) • Mid-sized mission critical corporate data center • Small staff • Very dynamic environment (growth, changes) • Use a lot of NetApp/Data OnTap features • Mixed Unix, Windows, VMWare • iSCSI, FCP, NFS, CIFS, SnapVault, FlexClones • SQL Server, Snap Manager for SQL • TSM – NearStore (3170) based storage pools, NDMP • Central storage for plant home directories(Cisco WAFS, CIFS, Quotas) • 170TB -- 3170 (NearStore), 6040 cluster, 3070 cluster • Cisco MDS9000 series SAN switches

  3. Why not just use DFM/Ops Mgr • DFM/Operations Manager is a GREAT product. • DFM tries to be everything to everyone. A necessity for a product in it’s class. • DFM monitoring is chatty. Even at warning level there are lots of messages to sort through. • A generalized product can’t please everyone for every case. • I live by the cup of coffee principal. I want to have a sense of the environment’s health by the time I finish my first cup of coffee in the morning. • With a combination of DFM, custom monitoring and alert scripts you get the best of all worlds. And the company benefits. • The internal website can be accessed by DBAs, Server Admins, Management, etc. that don’t want/need access to a comprehensive product. • There is much that DFM does well and we use it for those features

  4. Website Home Page

  5. Custom Aggregate Page

  6. Disks

  7. Volumes

  8. Volume Snapshots

  9. Snapshot Age

  10. Snapshot Busy

  11. Flexclones

  12. FCP List

  13. FCP Detail

  14. SnapVault Primary

  15. SnapVaultSecondary

  16. Quotas

  17. LUN List

  18. LUN Stats

  19. SnapVault Transfer Plot

  20. Website System Environment • Redhat Enterprise Linux 5 (VMWare virtual server) • Apache 2.2.3 • Perl 5.8.5 - Lincoln Stein’s CGI.pm - Small assortment of other Perl modules (cpan.org) - Andy Wardley’s Template Toolkit V2.18 - Internally developed wrapper module for API • Data OnTap SDK 3.01 (ontapi 1.7) • PHP 5 and chart module (JPGraph) for plotting • MySQL to store statistics for plots

  21. Website Development Goals • Move away from RSH used for old website • RSH works but… - Security implications - Parsing filer command output is tedious - Command output format could change causing rewrites - Tests the limits of my Perl Regex skills • Create a Perl module to abstract API calls - Re-usable - Simplifies scripts mining the information. Can focus more on application needs and less on rewriting the same the calls. - Changes in the API can be compensated for in the module without rewriting all the CGI scripts. - Can abstract and combine API data to present in a new form • Icons to get quick at-a-glance status • Better grouping of data/information • Readonly. No changes from website.

  22. API Abstraction (Perl Module) Reduces this: use lib "/usr/local/lib/perl/NetApp"; use NaServer; use NaElement; my $api = NaServer->new ($filer, 1, 7); $api->set_style(LOGIN_PASSWORD); $api->set_admin_user($user, $pw); $api->set_transport_type(NA_SERVER_TRANSPORT_HTTP); To this for application scripts: use NAontapi2; $api = NAontapi2->new(-filer=>’filername’, -username=>’ontapi_user’, -password=>’ontapi_pwd’);

  23. Get Aggregates (SDK Call) use lib "/usr/local/lib/perl/NetApp"; use NaServer; use NaElement; $api = NaServer->new ($filer, 1, 7); $api->set_style(LOGIN_PASSWORD); $api->set_admin_user(‘user’, ‘password’); $api->set_transport_type(NA_SERVER_TRANSPORT_HTTP); my $out = $api->invoke("aggr-list-info"); # Check API call result code if ($out->results_status() eq "failed"){ print($out->results_reason() ."\n"); exit (1); } my $aggr_info = $out->child_get("aggregates"); my @results = $aggr_info->children_get(); foreach $aggregate (@results) { $aggr_diskcount = $aggregate->child_get_int("disk-count"); . . $aggr_state = $aggregate->child_get_string("state"); }

  24. Aggregate data using module use NAontapi2; $api = NAontapi2->new(-filer=>$filername, -username=>$ontapi_user, -password=>$ontapi_pwd); $aggr_hash_ref = $api->naAggrDetail(); # Return hash keyed by aggregate %aggregates = %$aggr_hash_ref; foreach $aggr_rec (sort keys %aggregates) { print “NAME: ${aggr_rec} Detail: $aggregates{$aggr_rec}”,”\n”; }

  25. Final Thoughts • This is an ongoing process based on operational needs • Targeted toward information that is needed day to day • Not meant to be a replacement for instances where DFM works better. • Not meant to be a general purpose reporting system • At a glance. Get critical information quickly.