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4. Make the following settings are required:
• Click the PDM Rate drop-down menu and choose a rate:
Low – Fewer system resources to PDM, more to data read/write operations.
Medium – Balances system resources between PDM and data read/write operations.
High – More system resources to PDM, fewer to data read/write operations.
• Highlight the current values in the block threshold fields and input new values.
Reassigned block threshold range is 1 to 512 blocks.
Error block threshold range is 1 to 2048 blocks.
5. Click the Confirm button.
t
ranSItIon
Transition is the process of replacing a revertible spare drive that is currently part of a disk array with an
unconfigured physical drive or a non-revertible spare drive.
See "Running a Transition on a Spare Drive" on page 103.
M
t
s
Aking
rAnsition
ettings
To make Transition settings:
1. Click the Administration tab.
2. Click the Background Activities icon.
The list of background activities appears.
3. Click the Settings button.
4. Click the Transition Rate drop-down menu and choose a rate:
• Low – Fewer system resources to Transition, more to data read/write operations.
• Medium – Balances system resources between Transition and data read/write operations.
• High – More system resources to Transition, fewer to data read/write operations.
5. Click the Confirm button.
77
S
ynchronIzatIon
Synchronization is automatically applied to redundant logical drives when they are created. Synchronization
recalculates the redundancy data to ensure that the working data on the physical drives is properly in sync.
Mouse-over on the logical drive, click the View button, and look under Logical Drive Information beside the line
that says Synchronized. A Yes means the logical drive was synchronized. See "Viewing Logical Drive Information"
on page 96
M
s
s
Aking
ynchronizAtion
ettings
To make Synchronization settings:
1. Click the Administration tab.
2. Click the Background Activities icon.
The list of background activities appears.
3. Click the Settings button.
4. Click the Synchronization Rate drop-down menu and choose a rate:
• Low – Fewer system resources to Synchronization, more to data read/write operations.
• Medium – Balances system resources between Synchronization and data read/write operations.
• High – More system resources to Synchronization, fewer to data read/write operations.
5. Click the Confirm button.
b
r
attery
econDItIonInG
Batteries maintain power to the controller cache in the event of a power failure, thus protecting any data that
has not been written to a physical drive. Reconditioning is the action of discharging and recharging a battery to
preserve its capacity and performance.
DS300f G2 Series User Manual
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