It has been constantlystaying at 91%

Yes there are WebVPN Groups (9)

asa5510# show memory detail
Free memory:                      24893640 bytes ( 9%)
Used memory:                     243541816 bytes (91%)
     Allocated memory in use:    130295480 bytes (49%)
     Reserved memory:             62021760 bytes (23%)
     DMA Reserved memory:         51224576 bytes (19%)
-----------------------------   ----------------
Total memory:                    268435456 bytes (100%)

Dynamic Shared Objects(DSO):          0 bytes

DMA memory:
   Unused memory:                    26964 bytes ( 0%)
   Crypto reserved memory:         8216696 bytes (16%)
      Crypto free:                 6967204 bytes (14%)
      Crypto used:                 1249492 bytes ( 2%)
   Block reserved memory:         42727616 bytes (83%)
      Block free:                 38295072 bytes (75%)
      Block used:                  4432544 bytes ( 9%)
   Used memory:                     253300 bytes ( 0%)
-----------------------------   ----------------
   Total memory:                  51224576 bytes (100%)

HEAP memory:
   Free memory:                      24893640 bytes (16%)
   Used memory:                     130295480 bytes (84%)
      Init used memory by library:    4218752 bytes ( 3%)
      Allocated memory:             126076728 bytes (81%)
-----------------------------   ----------------
   Total memory:                    155189120 bytes (100%)

Least free memory:       16161976 bytes (10%)
Most used memory:       139027144 bytes (90%)

----- fragmented memory statistics -----

fragment size       count          total
    (bytes)                        (bytes)
----------------  ----------  --------------
           16          2685          42960
           24          1423          34152
           32          1101          35232
           40           935          37400
           48           290          13920
           56           235          13160
           64             2            128
           80             5            400
           88             9            792
           96            11           1056
          104             4            416
          112             7            784
          120             4            480
          120             1            120
          128             6            768
          136             3            408
          152             1            152
          160             1            160
          168            10           1680
          176             9           1584
          184             3            552
          192             9           1728
          200             3            600
          208             1            208
          216            24           5184
          224             2            448
          232             6           1392
          240             3            720
          256             3            768
          264            31           8184
          272             8           2176
          280            19           5320
          288             6           1728
          296             1            296
          304             2            608
          312             2            624
          320             1            320
          328             2            656
          336             1            336
          344             1            344
          352             2            704
          376             1            376
          400             2            800
          424             3           1272
          432             2            864
          440             4           1760
          464             1            464
          472             1            472
          480             1            480
          496             1            496
          504             1            504
          512             8           4304
          752             1            752
          872             1            872
         1104             2           2232
         1216             3           3648
         1544             2           3088
         1624            11          18088
         1664             6          10096
         1728             5           8760
         1792            12          21688
         1856            10          18800
         1920             3           5872
         1984            12          24088
         2056             9          18696
         2128            15          32352
         2208             2           4424
         2392             1           2392
         2432             2           4920
         2560            16          46288
         2768             1           2768*
         3080            31         102736
         3600            36         137960
         4096            33         137504
         4656             6          29832
         5136            53         285664
         5808            18         108896
         6144            32         200816
         6704            21         142320
         8000             1           8000
         8232             2          16464
         9560             1           9560
         9952             2          20024
        11320            31         357952
        12440             5          67920
        16816             2          34016
        21856             2          43760
        26328             3          82608
        29696             2          60376
        33464             6         208776
        41768             4         174768
       273848             1         273848
      1539584             1        1539584
     20389888             1       20389888**

*  - top most releasable chunk.
** - contiguous memory on top of heap.

----- allocated memory statistics -----

fragment size       count          total
    (bytes)                        (bytes)
----------------  ----------  --------------
           40             1             40
           48         70473        3382704
           56         79711        4463816
           64         10937         699968
           72          1851         133272
           80        123331        9866480
           88          7810         687280
           96         23578        2263488
          104          4944         514176
          112          1947         218064
          120          1159         139080
          128         19487        2494336
          136          4226         574736
          144           376          54144
          152           364          55328
          160          7339        1174240
          168           383          64344
          176         11303        1989328
          184            63          11592
          192         15581        2991552
          200           105          21000
          208            89          18512
          216           117          25272
          224            20           4480
          232           595         138040
          240           128          30720
          248            30           7440
          256             6           1536
          264            23           6072
          272             1            272
          280             8           2240
          288          1048         301824
          296            28           8288
          304            36          10944
          312           114          35568
          320            68          21760
          328             4           1312
          336            21           7056
          344             1            344
          352             1            352
          368            73          26864
          376           343         128968
          384            23           8832
          392             1            392
          400            38          15200
          408             1            408
          416             3           1248
          424            55          23320
          432            63          27216
          440            93          40920
          448            16           7168
          456            23          10488
          464             2            928
          472             1            472
          488            27          13176
          496             1            496
          504             1            504
          512           134          68608
          576            90          51840
          640            24          15360
          704            26          18304
          768            14          10752
          832             3           2496
          896             4           3584
          960             5           4800
         1024            50          51200
         1088            25          27200
         1152             2           2304
         1216             3           3648
         1280            12          15360
         1344             6           8064
         1408           105         147840
         1472            34          50048
         1536             6           9216
         1600             1           1600
         1728             5           8640
         1792             2           3584
         1856             1           1856
         1920             1           1920
         1984             1           1984
         2048            58         118784
         2112           105         221760
         2176             2           4352
         2240             3           6720
         2304             2           4608
         2368             1           2368
         2432             5          12160
         2560           110         281600
         3072            72         221184
         3584             4          14336
         4096           141         577536
         4608             3          13824
         5120             5          25600
         5632           117         658944
         6144            29         178176
         7680            76         583680
         8192           136        1114112
         8704             1           8704
         9216             1           9216
         9728             2          19456
        10240             1          10240
        10752             3          32256
        14848            21         311808
        18944            51         966144
        23040            10         230400
        27136             5         135680
        31232             3          93696
        35328            50        1766400
        39424             4         157696
        43520            28        1218560
        76288           139       10604032
       109056             5         545280
       141824            57        8083968
       174592            23        4015616
       436736             8        3493888
       698880            16       11182080

Hello,

If it is constantly staying at 91%, then I think the features you have

enabled are consuming most of your memory. WebVPN does require more memory

to hold user profile information. I would suggest you to upgrade the memory

on the firewall (you can consider upgrading to 1 GB).

Hope this helps.

Regards,

NT

Thank you for answering/help!

It seemed that it was an impact from another issue with that ASA-Cluster.

>> https://supportforums.cisco.com/thread/2036357?tstart=0 <<

Now all is fine and works well.

You are right that the features of the ASA needs much of the memory.