I'm not sure what pvstats does or did but I've written a tool called 'topvol' which monitors volume activity and latency in a fashion similar to the top utility available on *nixes.

Topvol is a perl script that you run on a remote host and it connects to the filer and uses the stats command to collect volume ops and latency. To run topvol you'll need ssh key based access to the filer and a user account with privileges to run the stats command. Topvol then gathers the ops and latency statistics on all flexvols on the filer and sorts them in descending order, showing the top 20 volumes. You can have topvol sort by ops or latency. Here is an example usage and output:

sh-3.2# ./topvol filer 3 4 ops
Ops     Latency     Volume
=========================================
427    3.51    melon_20K_fntst90   
60    0.03    dmsapplog   
41    0.98    vmware_its_pool_3_nfs   
41    1.76    oak_20K_psoft_bin_n   
35    6.83    redwood_20K_clone_psoft_bin_n   
35    2.58    esx3b_jsl_nfs1   
30    0.01    bb_garlic2_orasoft_nfs   
25    41    ums_ms9   
22    0.96    melon_20K_redoa   
21    0.87    its_pool_4_nfs   
21    0.01    msln_web_data   
18    0.18    bb_garlic2_redoa   
16    7.87    SWS_Exchange   
15    18    ums_ms8   
15    3.32    dmsosm1   
13    13    msln_ms1_b   
13    1.41    bb7prod_content_nfs   
12    6.30    dms_caesar_dbdat0_2   
10    0.45    dmsdbrlb_fc   
8    35    melon_20K_cstyp2   
8    0.20    melon_20K_psoft_bin   


Above, I've given topvol the filer name, the interval I want it to collect results for, the number of iterations I want it to run and what I want it to sort by. In this case I had is sort by ops.

If you run topvol without any options it will give you a synopsis of what it is and how to run it.

While it does not collect historical results, you could redirect the output to a text file and let it run indefinetely then bring the results into excel and do some magic on it there.

You can find a copy here:
http://communities.netapp.com/docs/DOC-1262

Hope it helps.

Romeo





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Romeo Theriault