ICP GDT6618RD, Addendum, Page: 91 / 111

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Type This is the RAID level of the Array Drive. It can be RAID 0 (data
striping, no redundancy), RAID1 (mirroring), RAID 4 (striping with
parity drive), RAID 5 (striping with striped parity) or RAID 10 (com-
bination of RAID 1 and RAID 0).
Status The status of an array can be ready (operational), fail (one drive
missing, still operational but not redundant), error (more than one
drive failed, not operational), rebuild (one drive is being inte-
grated), build (initial preparation of the array), idle (new defined
array, before build process has started), expand (one or several
drives are added online to the Array Drive).
Capacity This is the capacity available for the corresponding Host Drives.
Attributes The attribute of an Array Drive is usually read/write ([RW]).
If a component of a disk array is missing while startup and the op-
erator decides not to activate fail mode, the array is set to the read
only attribute ([RO]). When the missing drive is available again, the
Array Drive shows again the ready status (i.e., attribute [RW]).
Striping Size
(RAID 0, 5, 10) Data written on RAID 0, 4, 5 or RAID 10 drives is distributed over all
drives (striping). This is the size of the blocks.
The striping size can only be changed when the drive is created
(standard setting is 32KB).
Inva-
lid/Missing
(RAID 1) These two values show the number of invalid/missing drives. While
the build is in progress (initial copy of data from the Master to the
Slave), invalid drives exist (the drives are updated).
Pool Hot Fix Indicates, if the Pool Hot Fix access is enabled or disabled.
A Pool Hot Fix Drive is a spare drive within the so-called Hot Fix
Pool. A drive in a Hot Fix Pool is available for several Array Drives
as a Hot Fix drive (assuming it has an appropriate capacity). Thus,
several Array Drives can share one Hot Fix drive. Of course, once
this drive has been used by one of the Array Drives, it is no longer
available for the others. Hot Fix Drives can also be configured as
Private Hot Fix Drives. A Private Hot Fix Drive can only be used by
the Array Drive it was configured for. The Pool Hot Fix access can
be changed by clicking with the right mouse button on the Array
Drive icon.