User Guide

140 Server Operating System Administration Guide
Server Operating System Administration Guide
103-000148-001
August 30, 2001
Novell Confidential
Manual 99a38 July 17, 2001
 As a last resort, back up all files in the volume, bring down the server, and
reinitialize the volume. Specify a block size of 64 KB and turn the Block
Suballocation option to Off.
(This setting uses a lot of disk space but increases the amount of memory
available.)
 Check the AUTOEXEC.BAT and CONFIG.SYS files to make sure no
memory managers, such as HIMEM.SYS or EMM386.EXE, are being
loaded and that there is no DOS=HIGH statement in either file. Make sure
no DOS device drivers are being loaded.
 On NSS volumes, monitor and adjust the cache statistics. For more
information, see Setting the Cache Buffers in the Novell Storage Services
Administration Guide.
Resolving Memory Errors When a Traditional Volume Is Mounting
To diagnose problems when memory errors while a volume is mounting,
identify whether the following conditions exist:
 Traditional volumes take more memory to mount than they require after
being mounted because the mounting process performs consistency
checks (for example, the duplicate copies of all the tables are checked).
 Traditional volumes and directory entries grow dynamically. Therefore,
if your server is using most of the RAM (file cache buffers are close to
20% of the memory) and you dismount a volume, you might not be able
to remount the volume unless additional memory is available.
 Each additional name space support that you add to a Traditional volume
increases the size of the FATs and DETs. Adding name space support can
cause the tables to grow so large that the server does not have enough
RAM to mount the volume.
To resolve problems when memory errors while a volume is mounting,
perform the following actions or ensure that the following conditions exist:
 Check the status of the available cache buffers. If the cache buffers are
fewer than 20%, add more RAM to your server.
 Free up memory by unloading resources.
 Streamline the directory structure on Traditional volumes. Every
subdirectory takes at least one directory block (by default, a 4 KB block
of memory). Thus, subdirectories with only one file require as much
memory as directories with 32 files.