HP Surestore Disk Array FC60 HP SureStore E Disk Array 12H User's and Service - Page 80

Control Panel, Active Hot Spare

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Operating the Control Panel Using Control Panel Menus Auto Rebuild CAUTION! Until a rebuild is complete, data may be lost if a second disk fails or is removed. If you stop a rebuild process before it completes, the array is operating in an unprotected mode. Use Start Rebuild to complete the rebuild process. Auto Rebuild enables (default) or disables automatically rebuilding the array with the redundant data in the event of a disk failure. If Auto Rebuild is disabled, you must use Start Rebuild to manually rebuild data (see Start Rebuild). Auto Rebuild will start after a disk failure if Active Hot Spare is enabled or if you install a new disk of equal or greater capacity to replace the failed disk. Active Hot Spare Active Hot Spare enables (default) or disables the allocation of an Active Hot Spare space. If Active Hot Spare is enabled and Auto Rebuild is enabled, and if there is enough unallocated capacity, Active Hot Spare will rebuild data if a disk fails. If you enable Active Hot Spare before creating any logical drives (LUNs), Active Hot Spare will guarantee that there is sufficient unallocated space to perform an Auto Rebuild. If there is not enough unallocated capacity available, you must add a disk to the array or delete a logical drive to create sufficient unallocated space. When Active Hot Spare is disabled, the array may not be able to rebuild the data until another disk is added to the array. Start Rebuild Start Rebuild begins the rebuild process to recover redundant information that was on a failed disk. The array reconstructs the data from the failed disk using redundant data from the remaining disks. Stop Rebuild CAUTION! Until a rebuild is complete, data may be lost if a second disk fails or is removed. If you stop a rebuild process before it completes, the array is operating in an unprotected mode. Use Start Rebuild to complete the rebuild process. Stop Rebuild ends the rebuild process before it completes. 80 Control Panel

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Operating the Control Panel
Using Control Panel Menus
80
Control Panel
Auto Rebuild
CAUTION!
Until a rebuild is complete, data may be lost if a second disk fails or is
removed. If you stop a rebuild process before it completes, the array is operating in an
unprotected mode. Use Start Rebuild to complete the rebuild process.
Auto Rebuild enables (default) or disables automatically rebuilding the array with the redundant data in the
event of a disk failure. If Auto Rebuild is disabled, you must use Start Rebuild to manually rebuild data
(see
Start Rebuild
). Auto Rebuild will start after a disk failure if Active Hot Spare is enabled or if you
install a new disk of equal or greater capacity to replace the failed disk.
Active Hot Spare
Active Hot Spare enables (default) or disables the allocation of an Active Hot Spare space. If Active Hot
Spare is enabled and Auto Rebuild is enabled, and if there is enough unallocated capacity, Active Hot
Spare will rebuild data if a disk fails.
If you enable Active Hot Spare before creating any logical drives (LUNs), Active Hot Spare will guarantee
that there is sufficient unallocated space to perform an Auto Rebuild. If there is not enough unallocated
capacity available, you must add a disk to the array or delete a logical drive to create sufficient unallocated
space.
When Active Hot Spare is disabled, the array may not be able to rebuild the data until another disk is added
to the array.
Start Rebuild
Start Rebuild begins the rebuild process to recover redundant information that was on a failed disk. The
array reconstructs the data from the failed disk using redundant data from the remaining disks.
Stop Rebuild
CAUTION!
Until a rebuild is complete, data may be lost if a second disk fails or is
removed. If you stop a rebuild process before it completes, the array is operating in an
unprotected mode. Use Start Rebuild to complete the rebuild process.
Stop Rebuild ends the rebuild process before it completes.