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18 April 2006, ADIC
Limitations
This table lists the limitations that have been discovered in this release of SNFX.
Operating System/
Component Affected
Description
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.
2Add
cvfs to the PRUNEFS definition in the /etc/updatedb.conf file.
For example:
PRUNEFS="cvfs devpts NFS nfs afs proc smbfs autofs
auto iso9660"