Adaptec 2074700-R User Guide - Page 176
The Logical Drive Information Window
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ICP RAID Navigator Drive No Drive Name Type Status Capacity Attributes Striping Size (RAID 0, 5, 10) Invalid/Missing (RAID 1) Pool Hot Fix The logical number of the array drive. The name of the array drive. RAID level of the array drive. Possible levels are RAID 0 (data striping, no redundancy), RAID1 (mirroring), RAID 4 (striping with parity drive), RAID 5 (striping with striped parity) or RAID 10 (combination of RAID 1 and RAID 0). 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 integrated), build (initial preparation of the array), idle (new defined array, before build process has started), or expand (one or several drives are added online to the array drive). This is the capacity available for the corresponding host drives. The attribute of an array drive is usually read/write ([RW]). If a component of a disk array is missing during startup and the operator decides not to activate fail mode, the array is set to the read only attribute ([RO]). When the missing drive becomes available, the array drive shows the ready status (for example, attribute [RW]). Data written on RAID 0, 4, 5 or RAID 10 drives is distributed over all drives (striping). The striping size can only be changed at the time the drive is created (standard setting is 32KB). These two values show the number of invalid/missing drives. In this condition invalid drives exist during the build process (initial copy of data from the master to the slave). Indicates when 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 appropriate capacity). Thus, several array drives can share one hot fix drive. 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. 11.5.7 The Logical Drive Information Window Double click on the logical drive icon. This window shows information on a logical drive. A logical drive can be either a single disk, or a chaining group of disks (concatenation). See Figure 11-137. 176 Software Installation and User's Guide