Quantum 3.5.1 Benutzerhandbuch

General Operating Guidelines and Limitations

StorNext User’s Guide

339

Table 1   Operating Guidelines 
and Limitations

HA configurations

In HA (high availability) configurations, do not run 

adic_control start

 on the 

standby server. Doing so may start StorNext Storage Manager components 

on the standby server which are already running on the primary server, and 

may result in database corruption.

IRIX

As of release 3.0, StorNext does not support metadata controllers running the 

SGI IRIX operating system. To upgrade to StorNext 3.0 or higher, MDCs 

running IRIX must be converted to a supported operating system. This 

conversion must be performed by Quantum Professional Services. For more 

information, or to schedule an IRIX conversion, contact Quantum Global 

Services (see 

 The StorNext 3.1.2 client software continues to support IRIX.

SNFS uses 64-bit inode numbers. 32-bit applications (programs compiled 

without 64-bit) support may experience problems working with files with 

inode numbers greater than 2147483648. 32-bit applications may also 

encounter problems when dealing with files greater than 2TB in size, This 

issue is not unique to StorNext, but may be encountered by some legacy 

applications when working with SNFS on IRIX.

StorNext supports only SGI 64-bit versions of IRIX on operating systems that 

use the SGI version of the QLogic QLA2200 or QLA2310 FC-HBAs.

On many versions of IRIX, the root 

crontab

 contains the following entry which 

is used to remove old application crash dumps and temporary mail files:

find / -local -type f '(' -name core -o -name dead.letter ')' -atime +7 -mtime +7 -exec rm 
-f '{}' ';'

If StorNext file systems are mounted, they will be traversed by this 

find

 

command which can have a dramatic impact on the performance of other 

applications currently using these file systems. To prevent the traversal of 

StorNext file systems, modify the 

find

 command so it reads:

find / -local '(' -type d -fstype cvfs -prune ')' -o -type f '(' -name core -o -name 
dead.letter ')' -atime +7 -mtime +7 -exec rm -f '{}' ';'