For 9650SE and 9690SA RAID controllers, the Verify Task Schedule can be either “basic” or “advanced.” (For details about the associated comands, see
page 68).
The advanced Verify Task Schedule provides more control, and is equivalent to the Verify Task Schedule available for 9550SX and earlier 9000 RAID controllers.
For the advanced Verify Task Schedule, up to 7 time periods can be registered, known as slots 1 through 7. This task schedule can be managed by a set of commands including
add,
del,
show and
set a task. The task schedule has a slot id, start-day-time, duration, and status attributes. Rebuilds, migrations, and initializations follow similar background task schedules.
Verify activity verifies all units based on their unit type. Verifying RAID 1 involves checking that both drives contain the same data. On RAID 5 and RAID 6, the parity information is used to verify data integrity. RAID 10 and 50 are composite types and follow their respective array types. On 9000 series, non-redundant units such as RAID 0, single, and spare, are also verified (by reading and reporting un-readable sectors). If any parity mismatches are found, the array will be automatically background initialized. (For information about the initialization process, see the user guide that came with your 3ware RAID controller.)
For 9550SX and earlier controllers, and when verify=advanced for 9650SE and 9690SA controllers running 9.5.1, the
show verify command displays the current verify background task schedule as illustrated below.
A status of “disabled” indicates that the controller will not use the defined schedule timeslots and will start verifying within 10 to 15 minutes, if the verify command is entered manually, or it will begin automatically if the autoverify option is set. Rebuilds, migrations, and initializations will take priority over verifies.
For 9650SE and 9690SA controllers, if the “basic” Verify Task Schedule is selected, the
show verify command displays a schedule as illustrated below: