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2-76 Sun StorEdge 5310 NAS Troubleshooting Guide • December 2004
Are there any messages in the log other than “LUN Critical”? (Drive failed etc.)
Controller alarm may be beeping.
Follow instructions on drive replacement. Once the drive has been replaced, system
will rebuild the drive and the LUN will go from critical to online.
Alarm will continue to beep until rebuild is complete. The alarm can be silenced
from the RAID page of the GUI or from the menu.
2.16 File and Volume Operations
StorEdge doesn’t allow creation of volumes larger than 256 GB.
The StorEdge volume creation screens allow you to create volumes up to 256GB. In
order to create larger volumes, segments (also limited to 256GB) must be created and
joined to the volume.
Free space not immediately available after delete.
By default, the StorEdge will delete files as a background process and frees blocks as
this completes. This is done to provide better performance to foreground processes.
If many files have been deleted and the system is very busy, it may take some time.
This functionality is provided by the .attic$ directory feature.
The .attic$ directory can be found at the root of each volume. In rare cases, on very
busy filesystems, the .attic$ directory can be filled faster than it can process deletes.
This leads to a lack of free space and slow performance. In these cases, disabling the
.attic$ directory is recommended.
This is configurable only at the Command Line Interface (CLI).
1. To access the StorEdge CLI, connect to the StorEdge via Telnet, and type “admin”
at the [menu] prompt and enter the administrator password.
2. At the CLI, enter “fsctl attic disable <volumename>”.
This must be done for each volume that requires the change. It is not necessary to
delete the directory, but it is permissible to delete the files within the directory to
reclaim the disk space.