ADIC 1.3 Manuale Utente

Limitations

This table lists the limitations that have been discovered in this release of SNFX.

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 only supports SGI 64-bit versions of IRIX on operating systems 
that use the SGI version of the QLogic QLA2200 or QLA2310 FC-HBAs.

Use the 

uname -aR 

command to determine the running version of IRIX

.

• If you are using IRIX level 

6.5.26

, you must install the maintenance 

stream of StorNext or SNFS.

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 '{}' ';'

Linux

On many versions of Linux, the cron system runs a nightly script called 

slocate.cron

 that is used to build a database used by the slocate 

command. If StorNext file systems are mounted, they will be traversed by 
this cron job which can have a dramatic impact on the performance of other 
applications currently using these file systems. To prevent cron from 
traversing StorNext file systems, two files need to be updated. Perform 
these steps:

1 Modify the 

updatedb

 command in the /etc/cron.daily/slocate.cron file to 

read:

/usr/bin/updatedb -f

"cvfs,nfs,smbfs,ncpfs,proc,devpts" -e

"/tmp,/var/tmp,/usr/tmp,/afs,/net" 

NOTE: "cvfs" has been added to the exclude list.

2 Add 

cvfs

 to the PRUNEFS definition in the 

/etc/updatedb.conf

 file. 

For example:

PRUNEFS="cvfs devpts NFS nfs afs proc smbfs autofs 

auto iso9660"