General Operating Guidelines and Limitations
StorNext User’s Guide 344
All To avoid parser errors, do not use “up” or “down” when naming items in the
configuration file. This applies especially to naming affinities or any other
string-type keyword.
StorNext file systems cannot be smaller than 5GB.
Be aware of the following limitations regarding file systems and stripe
groups:
• The maximum number of disks per file system is 512
• The maximum number of disks per data stripe group is 128
• The maximum number of stripe groups per file system is 256
• The maximum number of tape drives is 256
To prevent data loss and aid disaster recovery, Quantum recommends
adjusting policy settings to retain two copies of critical data. In addition, data
stored to a storage disk should be stored on RAID (or, if only one copy is
retained, the RAID should be mirrored). This way, in the event of a disk
failure, no data is lost.
The trashcan feature has been removed in StorNext 3.0. Before upgrading to
StorNext 3.0, you must empty the trashcan on all file systems where this
feature is enabled. If the trashcan directories are not removed, the upgrade
will fail.
To empty the trashcan on a file system where it is enabled, change to the file
system directory (for example /stornext/snfs1). Then, at the command
prompt, type:
rm -rf TrashCan
Repeat this procedure for all file systems.
StorNext File System is incompatible with third-party portmappers.
Hot re-zoning of SAN fabrics is not supported.
Operating System /
Affected Component Description