Fujitsu Eternus DX100 S3 User Manual page 720

Chapter 6 Information Settings and Display
6.4 Utility > set subsystem-parameters
-tp-alloc-mode
-enforce-checkcode
-copybackless
-ignore-cmcm-error
Optional. This parameter specifies how to allocate the physical drive area when a write process
is performed for an area in a Thin Provisioning Volume to which physical drive area is not
allocated.
tpp-balancing
The physical drive area is allocated so that each TPP is evenly used.
tpv-balancing
The physical drive area is allocated so that the physical drive area for a TPV is
evenly allocated to each RAID group in the TPP.
Optional. This parameter specifies whether the Checkcode Enforcement Mode is enabled. If
this parameter is enabled, the error detection mechanism inside the device intensifies. During
write data duplication, check codes for all the blocks are checked. If omitted, the value of this
parameter will not change. The default value is "enable".
enable Checkcode Enforcement Mode is enabled.
disable Checkcode Enforcement Mode is disabled.
Optional. This parameter specifies whether the copybackless function is enabled. When this
function is enabled, the configuration of the relevant RAID group is changed to add the hot
spare disk to the RAID group after a rebuild operation is complete. A copyback operation is not
performed after a failed disk is replaced. When this function is disabled, the configuration of
the relevant RAID group remains unchanged after a rebuild operation is complete. A copyback
operation is performed after a failed disk is replaced. The default value is "enable".
enable The copybackless function is enabled.
disable The copybackless function is disabled.
Optional. This parameter specifies whether to ignore communication errors between CMs. The
default value is "disable".
For normal operations, do not change this parameter from the default value (disable).
enable Ignoring communication errors between CMs is enabled.
disable Ignoring communication errors between CMs is disabled.
ETERNUS CLI User's Guide
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