8 Replies Latest reply: Mar 24, 2014 11:13 AM by JGPSHNTAP RSS

High Cifs Utilisation

itsupportsds
Currently Being Moderated

Hi,

 

can somebody explain how we should troubleshoot high CIFS Utilisation? (was just for a short time)

 

Kind Regards

Christian

 

FAS3270 ONATP 8.1.1P1 7-Mode

 

aggregate 26 Disks (24 Data Disks) mirrored

 

sysstat -M 1

ANY1+ ANY2+ ANY3+ ANY4+  AVG CPU0 CPU1 CPU2 CPU3 Network Protocol Cluster Storage Raid Target Kahuna WAFL_Ex(Kahu) WAFL_XClean SM_Exempt Cifs Exempt Intr Host  Ops/s   CP

100%   43%   14%    3%  44%  26%  24%  27%  99%     20%       0%      0%      3%   7%     0%     5%     18%( 16%)          1%        0%  99%     6%  10%   8%   5449 100%

100%   36%   10%    3%  40%  22%  18%  21%  99%     17%       0%      0%      3%   4%     0%     3%     16%( 14%)          0%        0%  98%     6%   7%   6%   4844 100%

  99%   31%   10%    3%  39%  20%  16%  21%  98%     16%       0%      0%      2%   3%     0%     3%     17%( 15%)          0%        0%  98%     2%   7%   6%   5066  20%

100%   33%    7%    1%  39%  21%  15%  21%  99%     19%       0%      0%      1%   2%     0%     3%     16%( 14%)          0%        0%  99%     1%   8%   8%   6071   0%

100%   35%    8%    2%  40%  22%  17%  22%  98%     20%       0%      0%      2%   2%     0%     3%     16%( 15%)          0%        0%  98%     1%   8%   8%   6199   0%

100%   33%    7%    1%  39%  20%  15%  20%  99%     18%       0%      0%      2%   2%     0%     2%     15%( 14%)          0%        0%  99%     1%   7%   8%   5664   0%

100%   34%    8%    2%  39%  21%  16%  21%  98%     19%       0%      0%      2%   2%     0%     3%     17%( 15%)          0%        0%  98%     1%   7%   8%   5999   0%

  99%   32%    9%    2%  39%  21%  16%  20%  97%     17%       0%      0%      3%   3%     0%     3%     17%( 15%)          0%        0%  97%     1%   7%   7%   5548   0%

100%   34%    8%    2%  40%  22%  16%  21%  99%     18%       0%      0%      2%   2%     0%     3%     17%( 15%)          0%        0%  99%     1%   8%   9%   5798   0%

100%   35%    8%    2%  40%  22%  17%  22%  98%     20%       0%      0%      2%   2%     0%     3%     17%( 16%)          0%        0%  98%     1%   8%   8%   6438   0%

100%   35%    9%    2%  40%  23%  17%  22%  99%     20%       0%      0%      2%   2%     0%     3%     18%( 16%)          0%        0%  99%     1%   8%   8%   6260   0%

100%   30%    8%    2%  38%  20%  15%  19%  99%     16%       0%      0%      2%   3%     0%     3%     15%( 14%)          0%        0%  99%     1%   7%   7%   4879   0%

100%   40%   16%    5%  43%  26%  23%  25%  98%     15%       0%      0%      4%   8%     0%     4%     22%( 19%)          3%        0%  98%     6%   7%   6%   4829  80%

  99%   37%   11%    3%  41%  24%  20%  23%  97%     18%       0%      0%      3%   4%     0%     3%     17%( 16%)          0%        0%  97%     5%   8%   8%   5563 100%

100%   33%    9%    2%  39%  21%  16%  21%  99%     17%       0%      0%      2%   3%     0%     3%     17%( 15%)          0%        0%  99%     2%   7%   7%   5199  41%

  99%   31%    8%    2%  38%  20%  15%  20%  98%     17%       0%      0%      2%   3%     0%     3%     15%( 14%)          0%        0%  98%     1%   7%   7%   5336   0%

  99%   38%   12%    3%  42%  26%  19%  26%  98%     19%       0%      0%      2%   3%     0%     3%     22%( 19%)          0%        0%  98%     2%   9%   9%   5466   0%

  89%   39%   11%    2%  40%  31%  25%  39%  66%     26%       0%      0%      2%   3%     0%    13%     25%( 22%)          0%        0%  66%     3%  11%  11%   9329   0%

100%   36%   10%    3%  41%  24%  19%  23%  99%     20%       0%      0%      2%   3%     0%     3%     18%( 16%)          0%        0%  99%     2%   9%  10%   5582   0%

100%   35%   10%    3%  41%  25%  18%  23%  99%     20%       0%      0%      2%   2%     0%     3%     18%( 16%)          0%        0%  99%     1%  10%   9%   5470   0%

 

 

sysstat -x 1

 

CPU    NFS   CIFS   HTTP   Total     Net   kB/s    Disk   kB/s    Tape   kB/s  Cache  Cache    CP  CP  Disk   OTHER    FCP  iSCSI     FCP   kB/s   iSCSI   kB/s

                                       in    out    read  write    read  write    age    hit  time  ty  util                            in    out      in    out

98%   1968   1129      0    3097    2532  19118    9648    104       0      0    13     98%    5%  :    26%       0      0      0       0      0       0      0

98%   4389   1325      0    5714    3396  24294    5764      0       0      0    13     94%    0%  -    15%       0      0      0       0      0       0      0

97%   4709   1543      0    6340    2148  26073    4244     16       0      0    13     97%    0%  -    11%      88      0      0       0      0       0      0

99%   4642   1100      0    5742    6089  24659    3168     48       0      0    13     98%    0%  -     8%       0      0      0       0      0       0      0

99%   5207   1146      0    6353    2271  28075    3256      0       0      0    13     97%    0%  -     9%       0      0      0       0      0       0      0

98%   4184   1288      0    5472    3539  22340    1076      0       0      0    13     99%    0%  -     4%       0      0      0       0      0       0      0

80%   3630   4912      0    8799    3093  93962   11748     48       0      0    13     99%    0%  -    24%     257      0      0       0      0       0      0

87%   4561   2668      0    7233    2438  27895    4444     16       0      0    13     99%    0%  -     6%       4      0      0       0      0       0      0

99%   4748   1207      0    5956    3303  24560    3884      0       0      0    13     95%    0%  -    15%       1      0      0       0      0       0      0

99%   4878    919      0    5797    5352  25890    4420     48       0      0    13     96%    0%  -    16%       0      0      0       0      0       0      0

99%   5088    964      0    6052    6467  24895   28548  57496       0      0    13     94%   94%  Tf   25%       0      0      0       0      0       0      0

99%   4808   1152      0    5960    3232  23969    8560  50340       0      0    13     94%  100%  :f   17%       0      0      0       0      0       0      0

98%   4504   1260      0    5776    1905  24054    2240  35892       0      0    13     95%   85%  :    13%      12      0      0       0      0       0      0

99%   4813   1001      0    5815   17678  23785    4300   1040       0      0    13     94%    0%  -    10%       1      0      0       0      0       0      0

99%   4891   1016      0    5907    3490  24335    3068      0       0      0    13     96%    0%  -    15%       0      0      0       0      0       0      0

99%   4909    894      0    5803    1946  24525    2380     48       0      0    13     95%    0%  -    16%       0      0      0       0      0       0      0

99%   4999   1049      0    6048    1860  24571    2624      0       0      0    13     95%    0%  -    14%       0      0      0       0      0       0      0

 

vfiler run filer2 cifs stat

 

===== filer2

                              reject        0  0%

                               mkdir     1191  0%

                               rmdir     3514  0%

                                open        0  0%

                              create        0  0%

                               close 1098191575 14%

                             X&close        0  0%

                               flush     1448  0%

                             X&flush        0  0%

                              delete   469821  0%

                              rename    58209  0%

                            NTRename        0  0%

                              getatr       93  0%

                              setatr        0  0%

                                read        0  0%

                              X&read        0  0%

                               write   480477  0%

                             X&write        0  0%

                                lock        0  0%

                              unlock        0  0%

                               mknew        0  0%

                              chkpth       93  0%

                                exit        0  0%

                               lseek        0  0%

                            lockread        0  0%

                          X&lockread        0  0%

                         writeunlock        0  0%

                            readbraw        0  0%

                           writebraw        0  0%

                              writec        0  0%

                           gettattre        0  0%

                           settattre        0  0%

                            lockingX  6244353  0%

                                 IPC   273028  0%

                               open2        0  0%

                         find_first2 220063067  3%

                          find_next2  1115069  0%

                       query_fs_info  9568326  0%

                     query_path_info 1858137663 24%

                       set_path_info  4373384  0%

                     query_file_info 738040511 10%

                       set_file_info  4693818  0%

                         create_dir2        0  0%

                        Dfs_referral 15075284  0%

                          Dfs_report        0  0%

                                echo   567655  0%

                          writeclose        0  0%

                               openX  2192983  0%

                               readX 299922070  4%

                              writeX 44670227  1%

                           findclose        0  0%

                                tcon        0  0%

                                tdis   675448  0%

                             negprot     8330  0%

                               login   556585  0%

                              logout   277584  0%

                               tconX   522951  0%

                             dskattr        2  0%

                              search        0  0%

                              fclose     5349  0%

                           NTCreateX 1154096683 15%

                       NTTransCreate     3704  0%

                        NTTransIoctl 188499179  2%

                       NTTransNotify   137639  0%

                       NTTransSetSec        0  0%

                     NTTransQuerySec 885926601 12%

                    NTNamedPipeMulti        0  0%

                         NTCancel CN     4810  0%

                      NTCancel Other        4  0%

                            SMB2Echo        0  0%

                         SMB2Negprot    54196  0%

                    SMB2TreeConnnect   209860  0%

                  SMB2TreeDisconnect   168462  0%

                           SMB2Login    53867  0%

                          SMB2Create 582571786  8%

                            SMB2Read 161692733  2%

                           SMB2Write 51193975  1%

                            SMB2Lock 11395836  0%

                          SMB2Unlock 11390614  0%

                      SMB2OplkBrkAck        0  0%

                          SMB2ChgNfy   356167  0%

                           SMB2CLose 127057533  2%

                           SMB2Flush   357578  0%

                          SMB2Logout    49025  0%

                          SMB2Cancel   120985  0%

                       SMB2IPCCreate   491354  0%

                         SMB2IPCRead   496976  0%

                        SMB2IPCWrite   491921  0%

                        SMB2QueryDir 50818664  1%

              SMB2QueryFileBasicInfo     1808  0%

               SMB2QueryFileStndInfo     1291  0%

                SMB2QueryFileIntInfo 14414472  0%

                 SMB2QueryFileEAInfo 15456638  0%

                SMB2QueryFileFEAInfo      538  0%

               SMB2QueryFileModeInfo        0  0%

                SMB2QueryAltNameInfo        0  0%

             SMB2QueryFileStreamInfo  1575674  0%

                SMB2QueryNetOpenInfo  1337388  0%

                SMB2QueryAttrTagInfo        1  0%

                 SMB2QueryAccessInfo        0  0%

            SMB2QueryFileUnsupported        0  0%

                SMB2QueryFileInvalid     1996  0%

                  SMB2QueryFSVolInfo 22701940  0%

                 SMB2QueryFSSizeInfo   336641  0%

                  SMB2QueryFSDevInfo        0  0%

                 SMB2QueryFSAttrInfo 22701937  0%

               SMB2QueryFSFullSzInfo    61881  0%

                SMB2QueryFSObjIdInfo        0  0%

                  SMB2QueryFSInvalid        0  0%

               SMB2QuerySecurityInfo  6763117  0%

                    SMB2SetBasicInfo  1173575  0%

                   SMB2SetRenameInfo   126134  0%

                 SMB2SetFileLinkInfo        0  0%

                 SMB2SetFileDispInfo  2226284  0%

                   SMB2SetFullEAInfo        0  0%

                     SMB2SetModeInfo        0  0%

                    SMB2SetAllocInfo  1383904  0%

                      SMB2SetEOFInfo  1008637  0%

                  SMB2SetUnsupported        0  0%

                  SMB2SetInfoInvalid        0  0%

                 SMB2SetSecurityInfo     4418  0%

             SMB2FsctlPipeTransceive   591374  0%

                   SMB2FsctlPipePeek        0  0%

              SMB2FsctlEnumSnapshots     2666  0%

               SMB2FsctlDfsReferrals   261445  0%

                  SMB2FsctlSetSparse        0  0%

                SMB2FsctlSecureShare        0  0%

            SMB2FsctlFileUnsupported   780930  0%

             SMB2FsctlIpcUnsupported    51594  0%

                         cancel lock        0

                           wait lock        0

                       copy to align   349756

                        alignedSmall 63670910

                        alignedLarge 583299431

                     alignedSmallRel        0

                     alignedLargeRel        0

                       FidHashAllocs     5996

                       TidHashAllocs      112

                       UidHashAllocs        0

                            mbufWait        0

                             nbtWait        0

                            pBlkWait        0

                    BackToBackCPWait        0

                             cwaWait        0

                   short msg prevent     1062

                         multipleVCs   277495

                         SMB signing        0

                    mapped null user        0

                          PDCupcalls        0

                           nosupport        0

                      read pipe busy        0

                     write pipe busy        0

                     trans pipe busy        0

                    read pipe broken        0

                   write pipe broken        0

                   trans pipe broken        0

                     queued writeraw        0

                      nbt disconnect    53094

                      smb disconnect     3818

                      dup disconnect      204

                  OpLkBkXorBatchToL2  2942053

                OpLkBkXorBatchToNone      288

                      OpLkBkL2ToNone  3088456

                    OpLkBkNoBreakAck        1

                  OpLkBkNoBreakAck95        0

                  OpLkBkNoBreakAckNT        1

                    OpLkBkIgnoredAck  1601112

                OpLkBkWaiterTimedOut        0

                  OpLkBkDelayedBreak        0

                 SharingErrorRetries     4561

                        FoldAttempts        0

                         FoldRenames        0

                  FoldRenameFailures        0

                       FoldOverflows        0

                      FoldDuplicates        0

                     FoldWAFLTooBusy        0

                     NoAllocCredStat        0

                   RetryRPCcollision        0

                        TconCloseTID        0

                     GetNTAPExtAttrs        0

                     SetNTAPExtAttrs        0

                          SearchBusy        0

                      ChgNfyNoMemory        0

                      ChgNfyNewWatch    82017

                     ChgNfyLastWatch    81117

                   UsedMIDTblCreated      750

                 UnusedMIDTblCreated      330

                   InvalidMIDRejects        0

                SMB2InvalidSignature       65

           SMB2DurableCreateReceived 582558319

          SMB2DurableCreateSucceeded 33008891

          SMB2DurableReclaimReceived     6744

         SMB2DurableReclaimSucceeded     1156

          SMB2DurableHandlePreserved    20678

             SMB2DurableHandlePurged       35

            SMB2DurableHandleExpired    19487

                     SMB2FileDirInfo        7

                 SMB2FileFullDirInfo   506146

               SMB2FileIdFullDirInfo        0

                 SMB2FileBothDirInfo 14726173

               SMB2FileIdBothDirInfo 16305769

                   SMB2FileNamesInfo  3528940

              SMB2FileDirUnsupported        0

                       SMB2QueryInfo 85398010

                         SMB2SetInfo  5922955

                           SMB2Ioctl  1688009

              SMB2RelatedCompRequest 57443936

            SMB2UnRelatedCompRequest        0

                     SMB2FileRequest 1088913892

                     SMB2PipeRequest  3308848

                  SMB2_1_LeaseBreaks   455412

                SMB2_1_LeaseUpgrades    54940

            SMB2_1_LeaseBreakExcuses 11514840

        SMB2_1_LeaseBreakAckTimeouts     8885

            SMB2_1_HandleLeaseBreaks    13486

            SMB2_1_LeaseBreaksToNone    14774

        SMB2_1_LeaseBreakAcksIgnored        1

                       SMB2nosupport   333079

Max Multiplex = 162, Max pBlk Exhaust = 15103, Max pBlk Reserve Exhaust = 15033

Max FIDs = 58672, Max FIDs on one tree = 10590

Max Searches on one tree = 10, Max Core Searches on one tree = 0

Max sessions = 279

Max trees = 1782

Max shares = 48

Max session UIDs = 45, Max session TIDs = 369

Max locks = 102228

Max credentials = 287

Max group SIDs per credential = 165

Max pBlks = 1024 Current pBlks = 1024 Num Logons = 0

Max reserved pBlks = 32 Current reserved pBlks = 32

Max gAuthQueue depth         = 3

Max gSMBBlockingQueue depth  = 49

Max gSMBTimerQueue depth     = 6

Max gSMBAlfQueue depth       = 2

Max gSMBRPCWorkerQueue depth = 50

Max gOffloadQueue depth      = 2

Local groups: builtins = 6, user-defined = 1, SIDs = 6

RPC group count = 10, RPC group active count = 1

Max Watched Directories = 2059, Current Watched Directories = 1197

Max Pending ChangeNotify Requests = 1979, Current Pending ChangeNotify Requests = 1089

Max Pending DeleteOnClose Requests = 3072, Current Pending DeleteOnClose Requests = 3

  • Re: High Cifs Utilisation
    CCOLEMAN_
    Currently Being Moderated

    Checklist for troubleshooting CIFS issues

     

    • Use "sysstat –x 1" to determine how many CIFS ops/s and how much CPU is being utilized

    • Check /etc/messages for any abnormal messages, especially for oplock break timeouts

    • Use "perfstat" to gather data and analyze (note information from "ifstat", "statit", "cifs stat", and "smb_hist", messages, general cifs info)

    • "pktt" may be necessary to determine what is being sent/received over the network

    • "sio" should / could be used to determine how fast data can be written/read from the filer

    • Client troubleshooting may include review of event logs, ping of filer, test using a different filer or Windows server

    • If it is a network issue, check "ifstat –a", "netstat –in" for any I/O errors or collisions

    • If it is a gigabit issue check to see if the flow control is set to FULL on the filer and the switch

    • On the filer if it is one volume having an issue, do "df" to see if the volume is full

    • Do "df –i" to see if the filer is running out of inodes

    • From "statit" output, if it is one volume that is having an issue check for disk fragmentation

    • Try the "netdiag –dv" command to test filer side duplex mismatch. It is important to find out what the benchmark is and if it’s a reasonable one

    • If the problem is poor performance, try a simple file copy using Explorer and compare it with the application's performance. If they both are same, the issue probably is not the application. Rule out client problems and make sure it is tested on multiple clients. If it is an application performance issue, get all the details about:

    ◦ The version of the application

    ◦ What specifics of the application are slow, if any

    ◦ How the application works

    ◦ Is this equally slow while using another Windows server over the network?

    ◦ The recipe for reproducing the problem in a NetApp lab

    • If the slowness only happens at certain times of the day, check if the times coincide with other heavy activity like SnapMirror, SnapShots, dump, etc. on the filer. If normal file reads/writes are slow:

    ◦ Check duplex mismatch (both client side and filer side)

    ◦ Check if oplocks are used (assuming they are turned off)

    ◦ Check if there is an Anti-Virus application running on the client. This can cause performance issues especially when copying multiple small files

    ◦ Check "cifs stat" to see if the Max Multiplex value is near the cifs.max_mpx option value. Common situations where this may need to be increased are when the filer is being used by a Windows Terminal Server or any other kind of server that might have many users opening new connections to the filer. What is CIFS Max Multiplex?

    ◦ Check the value of OpLkBkNoBreakAck in "cifs stat". Non-zero numbers indicate oplock break timeouts, which cause performance problem

     

    Check these as well,

     

    1. enabling SMB 2 on the controller and using SMB 2 enabled clients would give better performance than SMBv1.

    2. Make sure there is not much latency between the Domain controllers and the controller

    3. Need to make sure that no stale DCs are listed under the preferred DCs

     

    What's cifs.tcp_window_size set to?

  • Re: High Cifs Utilisation
    danpancamo
    Currently Being Moderated

     

    Max Multiplex = 162, Max pBlk Exhaust = 15103, Max pBlk Reserve Exhaust = 15033

     

     

    Looks like you having the same Max pBlk Exhaust that we are having on our new 6290c 8.1.3P1 7-mode filer service Windows Home directories.  We previously had the same issue on a 3160   

     

    When the pBlk's get too high CIFS stops serving data which has caused us to failover 4 times in the past 2 years now.  4 - P1 cases, no root cause.  

     

    Max pBlk Exhaust can be caused by a few known problems including vscan , and slow Active Directory.  We don't have virus scanner on.

     

    Sure would like to get some community help with this issue...

     

     


    • Re: High Cifs Utilisation
      klmi
      Currently Being Moderated

      Hi we are also seeing pBlk Exhaustment on our FAS6240AE with Ontap 8.1.4 (SMB 1.x only).

      After a reboot/Upgrade of the Filer we dont see this problem for about 3-4 Weeks - but then it starts going up fast and faster until we see disruption on CIFS-Shares when this counter reaches very high numbers.

      Sun Feb  9 13:17:16 CET [filer:cifs.stats.pBlkExhaust:info]: CIFS: All CIFS control blocks for the STANDARD pool are in use. The request for a new control block can not be granted.

      Mon Feb 10 09:22:30 CET [filer:ems.engine.suppressed:debug]: Event 'cifs.stats.pBlkExhaust' suppressed 5 times in last 72314 seconds.

      Mon Feb 10 09:22:30 CET [filer:cifs.stats.pBlkExhaust:info]: CIFS: All CIFS control blocks for the STANDARD pool are in use. The request for a new control block can not be granted.

      Mon Feb 10 12:05:34 CET [filer:cifs.stats.pBlkExhaust:info]: CIFS: All CIFS control blocks for the STANDARD pool are in use. The request for a new control block can not be granted.

      Mon Feb 10 16:02:14 CET [filer:cifs.stats.pBlkExhaust:info]: CIFS: All CIFS control blocks for the STANDARD pool are in use. The request for a new control block can not be grante

       

      pblk-counter.PNG

       

      We also monitored the other Queues like offload (Virus Scanning) and auth (AD), but dont see any high numbers here.

      So it looks like the cause of this pBLK exhaustion lays somewhere in Data Ontap (cifs Filefolding, .....)

       

      here also a short overview of the cifs stat on the Filer

      Max Multiplex = 46, Max pBlk Exhaust = 20, Max pBlk Reserve Exhaust = 0

      Max pBlks = 1152 Current pBlks = 1152 Num Logons = 121

      Max reserved pBlks = 32 Current reserved pBlks = 32

      Max gAuthQueue depth         = 2

      Max gOffloadQueue depth      = 2

       

      In my opinion a reboot/takeover would help, but only for about 3-5 weeks and then the problem (pblk Exhaustion counter rises) will start again :-(

      We also have opened a Netapp Support Case, but problem looks far more complex and is unsolved since weeks.

      So i am interested if anyone of you maybe have seen this issue and knows a solution.

       

       

      Best Regards,

      klaus

      • Re: High Cifs Utilisation
        lhoffman1
        Currently Being Moderated

        what about the  "options cifs.smb"   ?

        • Re: High Cifs Utilisation
          klmi
          Currently Being Moderated

          SMB2.x is completely disabled, as we had many differnet issues in the past (pBlk, durable Handles, SMB2.1 Access issues, ...)

          [root@mucsx003 20140211-14:18:03]# ssh vihsdn03 options cifs.smb

          cifs.smb2.durable_handle.enable off

          cifs.smb2.enable             off

          cifs.smb2.signing.required   off

          cifs.smb2_1.branch_cache.enable off

          cifs.smb2_1.branch_cache.hash_time_out 3600       (value might be overwritten in takeover)

    • Re: High Cifs Utilisation
      STORAGESERVICE
      Currently Being Moderated

      Hi DanPancamo,

      looks like you are seeing the same issues as we see on our FAS6240AE

       

      Max Multiplex = 162, Max pBlk Exhaust = 15103, Max pBlk Reserve Exhaust = 15033

       

      but no real clue, why this happens.

      Looks like it starts some weeks after an Update/Reboot and when counters start rising until EndOfCifsService :-(

      But it looks no connected to AD or vSCAN issues, as we also closely monitor the other counters.

       

      Any update if you see advances in this Case would be fine.

       

      Best Regards,

      Klaus

      • Re: High Cifs Utilisation
        SNETAPPUSER
        Currently Being Moderated

        Same here... Having the same problem and worst case is we never know at what time we are going to hit again. Experienced the problem few days ago and it hit us yesterday night. As a workaround we used to terminate CIFS and restart it again but it is not a solution.We host 2500+ Virtual desktops and when this issue comes all the desktops get freeze because User Profiles and "User data" drives are from CIFS. It seems this problem is a long prevailing one and solution NO so far.

         

        Running Data ONTAP 8.1.2P4 on FAS3240AE

         

         

         

        Max Multiplex = 49, Max pBlk Exhaust = 411091, Max pBlk Reserve Exhaust = 68563

         

        Max FIDs = 52522, Max FIDs on one tree = 730

         

        Max Searches on one tree = 15, Max Core Searches on one tree = 0

         

        Max sessions = 5686

         

         

        Instance exhaust_mem_ exhaust_mem_ max_auth_qle max_offload_

         

         

        vfiler0       409962        68563            2            2

        vfiler0       409962        68563            2            2

        vfiler0       409962        68563            2            2

        vfiler0       409962        68563            2            2

        vfiler0       409962        68563            2            2

        vfiler0       409962        68563            2            2

        vfiler0       409962        68563            2            2

        vfiler0       409962        68563            2            2

        • Re: High Cifs Utilisation
          JGPSHNTAP
          Currently Being Moderated

          Added to the list as well..

           

          Max Multiplex = 33, Max pBlk Exhaust = 53221316, Max pBlk Reserve Exhaust = 157

           

          We can't determine if it's deswizzle of volumes causing cpu to spike to 100% or if it's vscan.  We disabled vscan and we think we were still exhausting.. runnin 8.1.3p1

           

          any ideas?

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