Quantum 3.5.1 Benutzerhandbuch

General Operating Guidelines and Limitations

StorNext User’s Guide

340

Linux

StorNext does not support the use of loopback IP addresses other than 

127.0.0.1. SUSE Enterprise Linux 10 systems sometimes have an entry for 

127.0.0.2 in the 

 file. This causes various FSM operations to fail with 

the error “Not Local.”

Linux Distributed Gateway (Proxy Server) Restrictions:
The dpserver file, used to configure network interfaces and addresses for 

Distributed Gateways, has a counter-intuitive restriction. If an interface has 

more than one address, an address must be specified in the dpserver file. 

However, if the interface has only one address, an address cannot be specified 

or the mount command will fail.

Many versions of Linux run a 

cron

 script nightly to build a database used by 

the 

slocate

 command. If StorNext file systems are mounted, they are traversed 

by this 

cron

 job which can have a dramatic impact on the performance of 

other applications currently using these file systems. Perform the following 

steps (based on Linux version) to prevent the 

cron

 script from traversing 

StorNext file systems.

Add “cvfs” to the list of file system types to be skipped. This is usually done 

by modifying the “PRUNEFS” line in the 

 file to read:

PRUNEFS=”cvfs sysfs selinuxfs usbdevfs devpts NFS nfs nfs4 afs sfs proc smbfs cifs 
autofs auto iso9660 udf”

The optional “findutils-locate” package is used to build the 

slocate

 database. 

The default behavior is to disable building the database. If enabled, to 

prevent cvfs file systems from being scanned, add “cvfs” to the list of file 

system types to be skipped. This is usually done by modifying the 

“UPDATEDB_PRUNEFS” line in the 

locate file to read:

UPDATEDB_PRUNEFS=”cvfs”

All UNIX and Linux

The 

swapon

 command does not work on StorNext file systems. The Linux/

Unix 

swapon

 command is used to specify devices on which paging and 

swapping take place. If 

swapon

 is run on a StorNext file system, the command 

fails with an invalid argument error.