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What commands are useful to monitor performance in ONTAP 9?

  1. Last updated
    Feb 14, 2025
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ontap-9
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perf
Last Updated:
2/14/2025, 4:24:01 AM

Applies to

ONTAP 9

Answer

Command Example
statistics show-periodic [-node <node name> ]
  • The following columns are useful:
    • cpu busy tells the CPU usage across CPU domains
    • data columns show how much Ethernet throughput is going through all NICs on the node
    • cluster columns show how much data is going through the Cluster LIFs
Click to view example
cluster1::*> statistics show-periodic -node node1
cpu  cpu   cpu    total                     fcache     pkts     pkts    total    total data     data     data cluster  cluster  cluster     disk     disk
avg busy total      ops  nfs-ops cifs-ops      ops     recv     sent     recv     sent busy     recv     sent    busy     recv     sent     read    write
---- ---- ----- -------- -------- -------- -------- -------- -------- -------- -------- ---- -------- -------- ------- -------- -------- -------- --------
  6%   6%   26%        0        0        0        0      641       39    126KB   4.68KB   0%   7.33KB       0B      0%    111KB   4.68KB       0B       0B
  5%   5%   21%        0        0        0        0      254        7   16.7KB   1.75KB   0%   5.60KB       0B      0%   5.48KB   1.75KB       0B       0B
  6%   6%   24%        0        0        0        0      307       41   21.2KB   5.32KB   0%   6.13KB       0B      0%   8.99KB   5.32KB       0B       0B
  4%   4%   17%        0        0        0        0      364       16   23.8KB   2.58KB   0%   8.88KB       0B      0%   6.05KB   2.58KB       0B       0B
 10%  10%   42%        0        0        0        0      673        7    124KB   1.92KB   0%   9.82KB       0B      0%    104KB   1.92KB       0B       0B
  7%   7%   28%        0        0        0        0      407       38   28.1KB   4.38KB   0%   8.79KB       0B      0%   10.5KB   4.38KB    106KB    528KB
  4%   4%   19%        0        0        0        0      328       16   21.6KB   2.58KB   0%   7.27KB       0B      0%   7.02KB   2.58KB       0B       0B
  5%   5%   22%        0        0        0        0      324       31   21.9KB   4.35KB   0%   6.99KB       0B      0%   7.95KB   4.35KB       0B       0B
  5%   5%   21%        0        0        0        0      242       16   16.1KB   2.60KB   0%   5.10KB       0B      0%   5.89KB   2.60KB       0B       0B
  4%   4%   17%        0        0        0        0      273       16   18.0KB   2.60KB   0%   5.91KB       0B      0%   6.20KB   2.60KB       0B       0B
sysstat -x 1
  • The following columns are useful:
    • CPU tells the CPU usage
    • CP time is the time either flushing or not flushing a Consistency Point from RAM to disk in each line of sysstat output (1 second if -x 1 is specified)
      • This is not useful unless troubleshooting CPs
    • CP_Ty can be useful if there are back-to-back CPs
Click to view example
cluster1::> node run local sysstat -x 1
 CPU    NFS   CIFS   HTTP   Total     Net   kB/s    Disk   kB/s    Tape   kB/s   Cache  Cache    CP           CP_Ty               CP_Ph       Disk   OTHER    FCP  iSCSI     FCP   kB/s   iSCSI   kB/s   NVMeF   kB/s   kB/s
                                       in    out    read  write    read  write     age    hit  time  [T--H--F--N--B--O--#--:]  [n--v--p--f]   util                            in    out      in    out
 23%      0     77      0     162      72   4803   10399    3701       0      0   >60     96%   74%   0--0--0--0--0--0--0--0    0--0--0--0     50%      85      0      0       0      0       0      0       0      0      0
 27%      0     27      0      53      64   3773    2318       8       0      0   >60     96%    0%   0--0--0--0--0--0--0--0    0--0--0--0     40%      26      0      0       0      0       0      0       0      0      0
 15%      0     63      0      66      39   3341    4609       0       0      0   >60     98%    0%   0--0--0--0--0--0--0--0    0--0--0--0     23%       3      0      0       0      0       0      0       0      0      0
sysstat -M 1
  • The following columns are useful:
    • Nwk_Exmpt displays the utilization of network CPU processing
    • WAFL_Ex display the utilization of the Data Processing (D-Blade or WAFL)
Click to view example
cluster1::> set diag
Warning: These diagnostic commands are for use by NetApp personnel only.
Do you want to continue? {y|n}: y
cluster1::*> node run -node netapp-01 sysstat -M 1
ANY1+ ANY2+ ANY3+ ANY4+ ANY5+ ANY6+ ANY7+ ANY8+ ANY9+ ANY10+ ANY11+ ANY12+ ANY13+ ANY14+ ANY15+ ANY16+  AVG 
 100%  100%  100%   99%   98%   96%   94%   91%   86%    81%    76%    70%    64%    57%    48%   37%   81%

CPU0 CPU1 CPU2 CPU3 CPU4 CPU5 CPU6 CPU7 CPU8 CPU9 CPU10 CPU11 CPU12 CPU13 CPU14 CPU15 
 78%  76%  77%  83%  82%  83%  82%  82%  82%  82%   83%   84%   83%   82%   83%   82% 

Nwk_Excl Nwk_Lg Nwk_Exmpt Protocol Cluster Storage Raid Raid_Ex Target Kahuna WAFL_Ex(Kahu)
      3%     2%      450%       0%      0%     49%   2%    136%     0%     4%    511%( 94%) 

WAFL_XClean SM_Exempt Cifs Exempt SSAN_Ex Intr Host  Ops/s   CP
         0%        0%   0%   112%      0%  28%   8%  47111   0%
statit
  • The following columns are useful:
    • ut%
       is the percentage of time the disk has I/O commands sent to the disk versus no i/o commands divided by the time statit is ran
    • xfers displays the amount of disk IOPS average per drive
      • Each xfer type is useful for viewing the IOP breakdown
    • chain is the i/o size in 4kB units
      • Example: 1 chain is 4 kB, 2 chains are 8 kB
    • usecs is the microsecond latency per IOP type per drive
Click to view example
  • filer> priv set advanced
  • filer*> statit -b
  • (Wait 30 or more seconds)
  • filer*> statit -e
                           Disk Statistics (per second)
        ut% is the percent of time the disk was busy.
        xfers is the number of data-transfer commands issued per second.
        xfers = ureads + writes + cpreads + greads + gwrites
        chain is the average number of 4K blocks per command.
        usecs is the average disk round-trip time per 4K block.

disk             ut%  xfers  ureads--chain-usecs writes--chain-usecs cpreads-chain-usecs greads--chain-usecs gwrites-chain-usecs
/aggr0/plex0/rg0:
0a.00.0            1   1.73    0.27   1.00   667   1.36   6.07   352   0.09   1.00  6000   0.00   ....     .   0.00   ....     .
0a.00.1            1   1.82    0.27   1.00   333   1.55   5.59   495   0.00   ....     .   0.00   ....     .   0.00   ....     .
0a.00.2           20  50.55   10.00   5.00  2200   0.36  20.00   375   0.18   1.00  6000   0.00   ....     .   0.00   ....     .
wafltop
  • The following has some examples:
Click to view example
qos statistics
  • The following has some examples:
Click to view example

Additional Information

N/A

 

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