HP Surestore Disk Array 12h - And FC60 Service Manual page 77

Operating the Control Panel
Using Control Panel Menus
Format Array
CAUTION! Once Logical Drives (LUNs) have been created on your disk array, you will not
be permitted to Format the disk array again. You must delete all of the existing Logical
Drives before a disk array can be formatted. Deleting Logical Drives (LUNs) and formatting
the disk array destroys all data on the disk array. Before formatting a disk array, make
backup copies of the entire disk array, or you will lose all data.
Format Array clears all disk sets in the array. All data is lost, all disk sets are lost, and all NVRAM
information is reset. You must delete all existing Logical Drives before formatting the disk array.
Parity
NOTE! This command requires a SCSI Reset or power cycle to take effect.
Parity switches SCSI Parity on (default) or off for the primary array controller. When parity is on, it
enables error detection in the primary array controller.
SDTR
NOTE! This command requires a SCSI Reset or power cycle to take effect.
Synchronous Data Transfer Request. SDTR enables (default) or disables SCSI SDTR (Synchronous Data
Transfer Request). SDTR controls the data rate on the SCSI bus used by the host and the array. SDTR also
determines the negotiation protocol of the host. If SDTR is enabled, the array will initiate negotiation
protocol; if disabled, the host will initiate negotiation protocol. In either case, the disk array will always
respond to any requests made by the host.
WDTR
NOTE! This command requires a SCSI Reset or power cycle to take effect.
Wide Data Transfer Request. WDTR controls whether or not the additional eight bits on a wide bus will be
utilized in most data phases of a SCSI command. WDTR also determines the negotiation protocol of the
host. If WDTR is enabled, (default) the disk array will initiate for negotiation for wide transfer. If WDTR is
disabled, the host will initiate negotiation protocol. In either case, the disk will always respond to any
requests made by the host.
77