We are having some problems with dropping available logical address space.
After reading through the forums i made some addjustments to the memory
configuration and did a server reboot:
Auto Tune Server Memory=OFF
File Cache Maximum Size=2147483648

As you can see below the server runs fine for 6 days now, but the available
logical address space has dropped from 2 GB to 1 Gb now.
Got to reboot the server in a week if this dropping continuous.

Any help would be great.

SEGSTATS.TXT:

Time and date : 09:02:02 AM 03/30/2006
Server version : NetWare 6.5 Support Pack 4
Server uptime : 6d 13h 06m 15s
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 : 2,936,012,800 bytes (2.73 GB) |
| |
0xC0800000 --------------------------------------------------------------
| Virtual Memory Cache Pool (L!=P) |
| |
| VM Pool Size : 1,082,130,432 bytes (1.01 GB) |
| Available : 851,660,800 bytes (812.2 MB) |
| Total VM Pages : 383,426,560 bytes (365.7 MB) |
| Free Clean VM : 357,138,432 bytes (340.6 MB) |
| Free Cache VM : 26,288,128 bytes (25.1 MB) |
| Total LP Pages : 2,924,544 bytes (2.8 MB) |
| Free Clean LP : 892,928 bytes (872 KB) |
| Free Cache LP : 2,031,616 bytes (1.9 MB) |
| Free Dirty : 0 bytes (0 KB) |
| VM Pages In Use : 465,309,696 bytes (443.8 MB) |
| NLM Memory In Use : 1,037,094,912 bytes (989.1 MB) |
| NLM/VM Memory : 1,020,153,856 bytes (972.9 MB) |
| Largest Segment : 81,088,512 bytes (77.3 MB) |
| High Water Mark : 1,172,111,360 bytes (1.09 GB) |
| |
0x80000000 --------------------------------------------------------------
| File System Cache Pool (L==P or L!=P) |
| |
| FS Pool Size : 2,141,224,960 bytes (1.99 GB) |
| Available : 199,634,944 bytes (190.4 MB) |
| Largest Segment : 192,045,056 bytes (183.1 MB) |
| |
| NSS Memory (70%) : 463,831,040 bytes (442.3 MB) |
| NSS (avail cache) : 459,350,016 bytes (438.1 MB) |
| |
0x005F8000 --------------------------------------------------------------
| DOS / SERVER.NLM |
| |
| Size : 6,258,688 bytes (6.0 MB) |
| |
0x00000000 --------------------------------------------------------------

Top 6 Memory Consuming NLMs
NLM Name Version Date Total NLM Memory
================================================== ==============================
1. DS.NLM 10552.79 9 Aug 2005 225,777,422 bytes (215.3 MB)
2. DBSRV8.NLM 8.00.02 4 Nov 2003 205,863,503 bytes (196.3 MB)
3. SERVER.NLM 5.70.04 15 Aug 2005 200,120,762 bytes (190.9 MB)
4. NSS.NLM 3.23.04 26 Sep 2005 187,220,784 bytes (178.5 MB)
5. APACHE2.NLM 10.00 15 Nov 2005 18,766,309 bytes (17.9 MB)
6. RTVSCAN.NLM 2.00.54 26 Jul 2005 18,085,824 bytes (17.2 MB)



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

File System Cache Information
FS Cache Free : 193,261,568 bytes (184.3 MB)
FS Cache Fragmented : 6,373,376 bytes (6.1 MB)
FS Cache Largest Segment : 192,045,056 bytes (183.1 MB)

Logical System Cache Information
LS Cache Free : 248,877,056 bytes (237.3 MB)
LS Cache Fragmented : 585,166,848 bytes (558.1 MB)
LS Cache Uninitialized : 299,900,928 bytes (286.0 MB)
LS Cache Largest Segment : 81,088,512 bytes (77.3 MB)
LS Cache Largest Position : 2562A000

Summary Statistics
Total Free : 442,138,624 bytes (421.7 MB)
Total Fragmented : 591,540,224 bytes (564.1 MB)
Highest Physical Address : 9FFFA000
User Space : 1,065,353,216 bytes (1016.0 MB)
User Space (High Water Mark) : 2,936,012,800 bytes (2.73 GB)
NLM Memory (High Water Mark) : 1,172,111,360 bytes (1.09 GB)
Kernel Address Space In Use : 2,195,935,232 bytes (2.05 GB)
Available Kernel Address Space : 1,033,678,848 bytes (985.8 MB)


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

KNOWN MEMORY Bytes Pages Bytes Pages
Server: 2683849072 655236 Video: 8192 2
Dos: 71312 17 Other: 131072 32

FS CACHE KERNEL NLM MEMORY
Original: 2679726080 654230 Code: 59760640 14590
Current: 199634944 48739 Data: 29310976 7156
Dirty: 0 0 Sh Code: 45056 11
Largest seg: 192045056 46886 Sh Data: 20480 5
Non-Movable: 12288 3 Help: 147456 36
Other: 531013632 129642 Message: 1167360 285
Avail NSS: 460673024 112469 Alloc L!=P: 926773248 226263
Movable: 8192 2 Alloc L==P: 2928640 715
Total: 1020153856 249061
VM SYSTEM
Free clean VM: 357138432 87192
Free clean LP: 892928 218
Free cache VM: 26288128 6418
Free cache LP: 2031616 496
Free dirty: 0 0
In use: 465309696 113601
Total: 851660800 207925

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

Auto Tune Server Memory = OFF
File Cache Maximum Size = 2147483648
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
------------------------------
preallocatecache=true
cache=204800000
cacheadjustinterval=15
cachecleanupinterval=15
blockcachepercent=50


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

NLM Memory High Water Mark = 1,172,111,360 bytes
File System High Water Mark = 317,827 bytes

User Space Information:
User Space High Water Mark = 683,339,776 bytes
Committed Pages High Water Mark = 144 pages
Mapped VM Pages High Water Mark = 127,724 pages
Reserved Pages High Water Mark = 1,020,580 pages
Swapped Pages High Water Mark = 14,695 pages

Available Low Water Mark = 420,909,056
ESM Memory High Water Mark = 0 pages