User Guide

Troubleshooting 47
Traditional File Services Administration Guide
103-000180-001
August 30, 2001
Novell Confidential
Manual 99a38 July 17, 2001
 Each additional name space support that you add to a volume increases
the size of the file allocation tables and directory entry tables. 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 memory errors when a volume mounts, 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.
 On volumes using the traditional file system streamline the directory
structure. Each subdirectory takes at least one directory block (by default,
a 4 KB block of memory). Therefore, subdirectories with only one file
require as much memory as directories with 32 files. Check the 4 KB size.
If you combine directories so that most directories have about 32 files and
you then purge the deleted subdirectories and files, you will free up
memory.
 Calculate how much memory you need and add memory to the server.
 Remove the recently added name space support.
WARNING: This is a destructive step that destroys all the extended file
information. Before taking this step, try to free up enough memory so that the
volume mounts and you can back up the data.
Have all users log out and then unload all NLM programs except the
volume’s disk drivers. Dismount any mounted volumes.
To remove the name space on a traditional volume, load VREPAIR and
select Set VRepair Options. Then select the Remove Name Space
Support from the Volume and Write All Directory and FAT Entries Out to
Disk options. Then exit to the main menu. Run VREPAIR > Repair a
Volume on the volume that would not mount.
Resolving Volume Mounting Problems Because of
Corrupted Directory Entry Tables or File Allocation
Tables
To diagnose problems when mismatches exist in the duplicate copies of the
file allocation table (FAT) and directory entry table (DET) on traditional
volumes, identify whether the following conditions exist: