HP 166207-B21 Smart Array 5300 Controller User Guide - Page 150
ORCA Option ROM Configuration for Arrays utility, RAID Redundant Array of Independent Disks
UPC - 720591292225
View all HP 166207-B21 manuals
Add to My Manuals
Save this manual to your list of manuals |
Page 150 highlights
Glossary online spare Also known as a hot spare, this is a drive in a fault-tolerant system that normally contains no data. When any other drive in the array fails, the controller automatically rebuilds the missing data that was on the failed drive onto the online spare. The controller constructs the missing data from the duplicate or parity data that is on the remaining drives in the array. ORCA (Option ROM Configuration for Arrays) utility A ROM-based configuration utility for users who have simple configuration requirements. PCI-X An enhanced PCI bus that allows operation at 133 MHz, equivalent to a data throughput of 1.0 GB/s. PCI-X is backward-compatible with PCI systems and devices, which operate at 66 MHz or 33 MHz. POST (Power-On Self-Test) A series of diagnostic tests that run automatically each time the server is started or reset. RAID (Redundant Array of Independent Disks) A form of fault tolerance. RAID 0 (no fault tolerance) uses data striping to distribute data evenly across all physical disks in the array, but has no redundant data. RAID 1+0 (drive mirroring) duplicates data from one drive onto a second drive. RAID 5 (distributed data guarding) distributes parity data across all drives in the array, and uses the parity data and data on remaining drives to reconstruct data from a failed drive. RAID ADG (advanced data guarding) is similar to RAID 5, but uses two independent sets of parity data. Refer to Appendix D for more details. rebuild See Automatic Data Recovery. ROMPaq utility A utility for updating the system or option firmware, available on the SmartStart CD or from the Compaq website. The system must support flashing to be able to take advantage of the ROMPaq utility. SCSI ID A unique ID number assigned to each SCSI device connected to a SCSI bus. The ID number determines the device priority on the SCSI bus; ID 7 is the highest priority and is always assigned to the SCSI controller. Glossary-4 Compaq Smart Array 5300 Controller User Guide