Menu Express Setup: Repair Array Drives - ICP RS Series User Manual

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Drive list, which means that the operating system is booted from the Host Drive having the
lowest number. For reasons of flexibility, a Host Drive's position in the list can be changed.
However, the position of the Host Drive from which the operating system is booted and the
position of the Host Drive from which ICPCON (disk version) was started (both can be the
same), cannot be changed. If you wish to change the position of these drives, you have to
boot the operating system and ICPCON from a floppy disk or use the ICPCON from the
Flash-RAM of the ICP Controller. To change the position of a Host Drive in the Host Drive
list, highlight the Host Drive and confirm with ENTER. Then, type on the new position and
press ENTER.
"Remove Host Drives". Removing a Host Drive is a serious action. All data will be lost after
removal. If you want to remove a Host Drive belonging to an Array Drive for which several
Host Drives exist (after capacity expansion, or after splitting), all other Host Drives will also
be removed.
"Split Host Drive". For some purposes it might of interest to split an existing Host Drive
into two or several Host Drives. Each Host Drives looks to the operating system just like a
single hard disk. Since the new Host Drives have smaller capacities ICPCON has to write
new header information on the two Host Drives. All data will be lost.
"Merge Host Drives". This function reverses the Split Host Drive option. Only such Host
Drives can be merged which belong to the same Array Drive or Logical Drive. Since the new
Host Drives has a larger capacity ICPCON has to write a new header information on the new
Host Drives. All data will be lost.
"Partition Host Drive". This option is not available, when loading ICPCON from the Flash-
RAM of the ICP Controller. Before you can partition a new Host Drive it may become neces-
sary to reboot the system, first. The partitioning menu has similar functions as the MS-DOS
program FDISK. You can create and delete a partition and also change the active partition.
MS-DOS can only be booted from an active partition. Just like FDISK, ICPCON can handle
primary partitions, extended partitions, and logical drives within the extended partitions.
"Add Hot Fix Drive" allows you to add a Hot Fix drive to an existing RAID 1, RAID 4, RAID 5,
or RAID 10 Array Drive. There are two different types of Hot Fix drives: Private and Pool Hot
Fix drives. 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. 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.
A Private Hot Fix drive is dedicated to one RAID 1, RAID 4, RAID 5 or RAID 10 Array Drive.
"Remove Hot Fix Drive" allows you remove a previously assigned Hot Fix drive.
"Overwrite Master Boot Code". This option creates a valid and consistent master boor rec-
ord on the selected Host Drive and should be carried out on any new Host Drive on which
Windows NT is installed. Never use this function when the Host Drive contains valid data, all
data will be lost.
The option "Drive Type (Cluster)" is available only with ICP Controllers which are equipped
with Cluster RAIDYNE® (GDTx6xxx) and allows to assign one Host Drive to several ICP
Controllers (Type Cluster).
J.4.2 Menu Express Setup: Repair Array Drives
This function allows the online repair of Array Drives which show failed drives. After se-
lecting this menu option, ICPCON displays a summary of all installed Array Drives (in this
example 2) and the number of Array Drives which are in critical states.