Controller Object Commands
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This feature is useful for operating systems limited to 2 TB file systems.
For example, using the 2 TB default carvesize, a 3 TB unit will be configured
into one 2 TB volume and one 1 TB volume. A 5 TB unit will be configured
into two 2 TB volumes and one 1 TB volume.
When auto-carve policy is set to
off
, all new units are created as a single large
volume. If the operating system can only recognize up to 2 TBs, space over 2
TB will not be available.
Example:
//localhost> /c0 set autocarve=on
Setting Auto-Carving Policy on /c0 to on ... Done.
/c
x
set carvesize=[1024..32768]
This feature only applies to 9000 series SX/SE/SA model controllers.
This command allows you to set the carve size in GB. This feature works
together with autocarve. See “/cx set autocarve=on|off” above for details.
Note that for some operating systems are limited to 2 TB. (For details, see
“Support for Over 2 Terabytes” on page 10.)
Example:
//localhost> /c0 set carvesize=2000
Setting Auto-Carving Size on /c0 to 2000 GB ... Done.
/c
x
set autorebuild=on|off
This feature only applies to 9000 series SX/SE/SA model controllers.
This command turns the Auto-Rebuild policy on or off. By default,
autorebuild is on.
If the policy is on the firmware will select drives to use for rebuilding a
degraded unit using the following priority order.
1. Smallest usable spare.
2. Smallest usable unconfigured (available) drive.
3. Smallest usable failed drive.
Enabling Auto-Rebuild allows you to add a drive to the controller and have it
be available for a rebuild as soon as you tell the controller to rescan, without
Note:
Failed drives can be drives that have mechanically failed, or they can be
drives that have been disconnected from the controller long enough to cause a
drive timeout error and for the controller to classify them as failed.
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