Hi,

I have a nw6.5sp5 server with 6Gb ram which is slowly loosing Available
Logical Space from about 1000Mb to 500Mb over 2 weeks. This seems to be
related to the amount of fragmented memory which is slowly increasing
(60Mb to 355Mb). I'm getting more than slightly concerned that this
isn't going to stop. The server is patched with n65nss5a, nw65os5a,
iprntnw65sp5c and wsock6i (beta). I've also set the TSA Cache Memory
Threshold to 1. Two segstat snapshots are below, one 1 day old and the
latest 12 days. Suggestions as to how to get this system stable would
be much appreciated.

Ian

~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~

*** Memory Pool Configuration for : BIOLDEPT
Time and date : 10:20:22 AM 06/26/2006
Server version : NetWare 6.5 Support Pack 5
Server uptime : 1d 02h 49m 40s
SEG.NLM version : v1.72

0xFFFFFFFF --------------------------------------------------------------
| Kernel Reserved Space |
| |
| Size : 180,355,071 bytes (172.0 MB) |
| |
0xF5400000 --------------------------------------------------------------
| User Address Space (L!=P) |
| |
| User Pool Size : 884,998,144 bytes (844.0 MB) |
| High Water Mark : 1,929,379,840 bytes (1.80 GB) |
| |
0xC0800000 --------------------------------------------------------------
| Virtual Memory Cache Pool (L!=P) |
| |
| VM Pool Size : 2,155,872,256 bytes (2.01 GB) |
| Available : 1,194,643,456 bytes (1.11 GB) |
| Total VM Pages : 1,194,012,672 bytes (1.11 GB) |
| Free Clean VM : 1,194,012,672 bytes (1.11 GB) |
| Free Cache VM : 0 bytes (0 KB) |
| Total LP Pages : 0 bytes (0 KB) |
| Free Clean LP : 0 bytes (0 KB) |
| Free Cache LP : 0 bytes (0 KB) |
| Free Dirty : 0 bytes (0 KB) |
| VM Pages In Use : 630,784 bytes (616 KB) |
| NLM Memory In Use : 458,510,336 bytes (437.3 MB) |
| NLM/VM Memory : 454,586,368 bytes (433.5 MB) |
| Largest Segment : 327,229,440 bytes (312.1 MB) |
| High Water Mark : 494,395,392 bytes (471.5 MB) |
| |
0x40000000 --------------------------------------------------------------
| File System Cache Pool (L==P or L!=P) |
| |
| FS Pool Size : 1,067,474,944 bytes (1018.0 MB) |
| Available : 295,514,112 bytes (281.8 MB) |
| Largest Segment : 287,150,080 bytes (273.8 MB) |
| |
| NSS Memory (85%) : 1,670,717,440 bytes (1.56 GB) |
| NSS (avail cache) : 1,657,933,824 bytes (1.54 GB) |
| |
0x005FA000 --------------------------------------------------------------
| DOS / SERVER.NLM |
| |
| Size : 6,266,880 bytes (6.0 MB) |
| |
0x00000000 --------------------------------------------------------------

Top 6 Memory Consuming NLMs
NLM Name Version Date Total NLM Memory
================================================== ==============================
1. NSS.NLM 3.24.01 10 Mar 2006 216,662,816 bytes
(206.6 MB)
2. DS.NLM 10552.79 9 Aug 2005 75,097,870 bytes
(71.6 MB)
3. SERVER.NLM 5.70.05 11 Apr 2006 62,208,346 bytes
(59.3 MB)
4. CONNMGR.NLM 5.60.01 26 Oct 2005 12,178,451 bytes
(11.6 MB)
5. FATFS.NLM 1.24 7 Dec 2005 5,652,951 bytes (5.4 MB)
6. NWPA.NLM 3.20.08 16 Nov 2005 4,072,342 bytes (3.9 MB)



Logical Memory Summary Information
================================================== ==============================

File System Cache Information
FS Cache Free : 288,354,304 bytes (275.0 MB)
FS Cache Fragmented : 7,159,808 bytes (6.8 MB)
FS Cache Largest Segment : 287,137,792 bytes (273.8 MB)

Logical System Cache Information
LS Cache Free : 442,843,136 bytes (422.3 MB)
LS Cache Fragmented : 60,547,072 bytes (57.7 MB)
LS Cache Uninitialized : 333,455,360 bytes (318.0 MB)
LS Cache Largest Segment : 327,229,440 bytes (312.1 MB)
LS Cache Largest Position : A6186000

Summary Statistics
Total Free : 1,804,939,264 bytes (1.68 GB)
Total Fragmented : 67,706,880 bytes (64.6 MB)
Highest Physical Address : DFFDF000
User Space : 1,065,353,216 bytes (1016.0 MB)
User Space (High Water Mark) : 1,929,379,840 bytes (1.80 GB)
NLM Memory (High Water Mark) : 494,395,392 bytes (471.5 MB)
Kernel Address Space In Use : 1,356,967,936 bytes (1.26 GB)
Available Kernel Address Space : 1,872,646,144 bytes (1.74 GB)


Memory Summary Screen (.ms)
================================================== ==============================

KNOWN MEMORY Bytes Pages Bytes Pages
Server: 3757474672 917352 Video: 8192 2
Dos: 82064 20 Other: 131072 32

FS CACHE KERNEL NLM MEMORY
Original: 3753394176 916356 Code: 32923648 8038
Current: 295514112 72147 Data: 19386368 4733
Dirty: 0 0 Sh Code: 49152 12
Largest seg: 287137792 70102 Sh Data: 20480 5
Non-Movable: 126976 31 Help: 172032 42
Other: 1808433152 441512 Message: 1380352 337
Avail NSS: 1657892864 404759 Alloc L!=P: 394149888 96228
Movable: 8192 2 Alloc L==P: 6504448 1588
Total: 454586368 110983
VM SYSTEM
Free clean VM: 1194012672 291507
Free clean LP: 0 0
Free cache VM: 0 0
Free cache LP: 0 0
Free dirty: 0 0
In use: 630784 154
Total: 1194643456 291661


Memory Configuration (set parameters)
================================================== ==============================

Auto Tune Server Memory = ON
File Cache Maximum Size = 1073741824
File Service Memory Optimization = 1
Logical Space Compression = 1
Garbage Collection Interval = 299.9 seconds
VM Garbage Collector Period = 300.0 seconds
server -u<number> = 884998144



NSS Configuration File:
C:\NWSERVER\NSSSTART.CFG
------------------------------
File does not exist,
or is zero byte in size.



DS Configuration File:
SYS:\_NETWARE\_NDSDB.INI
------------------------------
File does not exist,
or is zero byte in size.

Server High/Low Water Mark Values
================================================== ==============================

NLM Memory High Water Mark = 494,395,392 bytes
File System High Water Mark = 439,889 bytes

User Space Information:
User Space High Water Mark = 297,218,048 bytes
Committed Pages High Water Mark = 0 pages
Mapped VM Pages High Water Mark = 2,890 pages
Reserved Pages High Water Mark = 264,069 pages
Swapped Pages High Water Mark = 0 pages

Available Low Water Mark = 1,458,397,184
ESM Memory High Water Mark = 516 pages

~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~


*** Memory Pool Configuration for : BIOLDEPT
Time and date : 09:29:26 AM 07/07/2006
Server version : NetWare 6.5 Support Pack 5
Server uptime : 12d 02h 01m 36s
SEG.NLM version : v1.72

0xFFFFFFFF --------------------------------------------------------------
| Kernel Reserved Space |
| |
| Size : 180,355,071 bytes (172.0 MB) |
| |
0xF5400000 --------------------------------------------------------------
| User Address Space (L!=P) |
| |
| User Pool Size : 884,998,144 bytes (844.0 MB) |
| High Water Mark : 1,929,379,840 bytes (1.80 GB) |
| |
0xC0800000 --------------------------------------------------------------
| Virtual Memory Cache Pool (L!=P) |
| |
| VM Pool Size : 2,155,872,256 bytes (2.01 GB) |
| Available : 1,186,996,224 bytes (1.11 GB) |
| Total VM Pages : 1,186,996,224 bytes (1.11 GB) |
| Free Clean VM : 1,186,365,440 bytes (1.10 GB) |
| Free Cache VM : 630,784 bytes (616 KB) |
| Total LP Pages : 0 bytes (0 KB) |
| Free Clean LP : 0 bytes (0 KB) |
| Free Cache LP : 0 bytes (0 KB) |
| Free Dirty : 0 bytes (0 KB) |
| VM Pages In Use : 0 bytes (0 KB) |
| NLM Memory In Use : 471,060,480 bytes (449.2 MB) |
| NLM/VM Memory : 466,743,296 bytes (445.1 MB) |
| Largest Segment : 33,886,208 bytes (32.3 MB) |
| High Water Mark : 529,137,664 bytes (504.6 MB) |
| |
0x40000000 --------------------------------------------------------------
| File System Cache Pool (L==P or L!=P) |
| |
| FS Pool Size : 1,067,474,944 bytes (1018.0 MB) |
| Available : 294,322,176 bytes (280.7 MB) |
| Largest Segment : 280,829,952 bytes (267.8 MB) |
| |
| NSS Memory (85%) : 1,663,979,520 bytes (1.55 GB) |
| NSS (avail cache) : 1,652,965,376 bytes (1.54 GB) |
| |
0x005FA000 --------------------------------------------------------------
| DOS / SERVER.NLM |
| |
| Size : 6,266,880 bytes (6.0 MB) |
| |
0x00000000 --------------------------------------------------------------

Top 6 Memory Consuming NLMs
NLM Name Version Date Total NLM Memory
================================================== ==============================
1. NSS.NLM 3.24.01 10 Mar 2006 215,348,000 bytes
(205.4 MB)
2. DS.NLM 10552.79 9 Aug 2005 83,076,878 bytes
(79.2 MB)
3. SERVER.NLM 5.70.05 11 Apr 2006 66,017,626 bytes
(63.0 MB)
4. CONNMGR.NLM 5.60.01 26 Oct 2005 11,240,467 bytes
(10.7 MB)
5. FATFS.NLM 1.24 7 Dec 2005 5,652,951 bytes (5.4 MB)
6. NWPA.NLM 3.20.08 16 Nov 2005 4,072,342 bytes (3.9 MB)



Logical Memory Summary Information
================================================== ==============================

File System Cache Information
FS Cache Free : 282,046,464 bytes (269.0 MB)
FS Cache Fragmented : 12,275,712 bytes (11.7 MB)
FS Cache Largest Segment : 280,829,952 bytes (267.8 MB)

Logical System Cache Information
LS Cache Free : 147,910,656 bytes (141.1 MB)
LS Cache Fragmented : 342,069,248 bytes (326.2 MB)
LS Cache Uninitialized : 333,455,360 bytes (318.0 MB)
LS Cache Largest Segment : 33,886,208 bytes (32.3 MB)
LS Cache Largest Position : BE7AF000

Summary Statistics
Total Free : 1,503,698,944 bytes (1.40 GB)
Total Fragmented : 354,344,960 bytes (337.9 MB)
Highest Physical Address : DFFDF000
User Space : 1,065,353,216 bytes (1016.0 MB)
User Space (High Water Mark) : 1,929,379,840 bytes (1.80 GB)
NLM Memory (High Water Mark) : 529,137,664 bytes (504.6 MB)
Kernel Address Space In Use : 1,371,570,176 bytes (1.28 GB)
Available Kernel Address Space : 1,858,043,904 bytes (1.73 GB)


Memory Summary Screen (.ms)
================================================== ==============================

KNOWN MEMORY Bytes Pages Bytes Pages
Server: 3757474672 917352 Video: 8192 2
Dos: 82064 20 Other: 131072 32

FS CACHE KERNEL NLM MEMORY
Original: 3753394176 916356 Code: 32923648 8038
Current: 294322176 71856 Data: 19386368 4733
Dirty: 0 0 Sh Code: 49152 12
Largest seg: 280829952 68562 Sh Data: 20480 5
Non-Movable: 122880 30 Help: 172032 42
Other: 1803866112 440397 Message: 1380352 337
Avail NSS: 1652965376 403556 Alloc L!=P: 406306816 99196
Movable: 8192 2 Alloc L==P: 6504448 1588
Total: 466743296 113951
VM SYSTEM
Free clean VM: 1186365440 289640
Free clean LP: 0 0
Free cache VM: 630784 154
Free cache LP: 0 0
Free dirty: 0 0
In use: 0 0
Total: 1186996224 289794


Memory Configuration (set parameters)
================================================== ==============================

Auto Tune Server Memory = ON
File Cache Maximum Size = 1073741824
File Service Memory Optimization = 1
Logical Space Compression = 1
Garbage Collection Interval = 299.9 seconds
VM Garbage Collector Period = 300.0 seconds
server -u<number> = 884998144



NSS Configuration File:
C:\NWSERVER\NSSSTART.CFG
------------------------------
File does not exist,
or is zero byte in size.



DS Configuration File:
SYS:\_NETWARE\_NDSDB.INI
------------------------------
File does not exist,
or is zero byte in size.

Server High/Low Water Mark Values
================================================== ==============================

NLM Memory High Water Mark = 529,137,664 bytes
File System High Water Mark = 439,889 bytes

User Space Information:
User Space High Water Mark = 297,218,048 bytes
Committed Pages High Water Mark = 0 pages
Mapped VM Pages High Water Mark = 2,890 pages
Reserved Pages High Water Mark = 264,069 pages
Swapped Pages High Water Mark = 154 pages

Available Low Water Mark = 1,433,202,688
ESM Memory High Water Mark = 516 pages


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~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~