HP Surestore Disk Array 12h SGI IRIX Configuration Guide - Page 69

Data Facility System Managed Storage., DFDSS, DFSMS, disk adapter DKA, disk controller unit

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DASD DCR DE DFDSS DFSMS DFW disk adapter (DKA) disk controller unit (DKC) disk cabinet unit (DKU) disk recovery and restore unit (DRR) disk group disk type DMP dr DSF DW DWL ECKD EFS emulation modes EOF Direct access storage device. Dynamic cache residency (also called Cache LUN XP). HP Surestore Data Exchange XP. Data Facility Dataset Services. Data Facility System Managed Storage. DASD fast write. Synonymous with the term ACP. The disk controller unit (DKC) refers to the array hardware which houses the channel adapters and service processor (SVP). The disk cabinet unit (DKU) refers to the array hardware which houses the physical disks in the array. The unit located on the ACP that is responsible for data recovery and restoration in the event of a cache failure. The physical disk locations associated with a parity group. The manufacturing label burned into the physical disk controller firmware. In most cases, the disk type is identical to the disk model number. Dynamic multipathing. Drive. Device support facilities. Duplex write. Duplex write line. Extended count key data. The IRIX standard file system. The logical devices (LDEVs) associated with each RAID group may have one of the following emulation modes. These modes change the behavior of the disks and determine their size. OPEN-3: 2.46 GB OPEN-8: 7.38 GB OPEN-9: 7.42 GB OPEN-E:13.56 GB OPEN-K:1.74 GB OPEN-L:36 GB OPEN-M:47 GB End of field. Glossary 69

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Glossary
69
DASD
Direct access storage device.
DCR
Dynamic cache residency (also called Cache LUN XP).
DE
HP Surestore Data Exchange XP.
DFDSS
Data Facility Dataset Services.
DFSMS
Data Facility System Managed Storage.
DFW
DASD fast write.
disk adapter (DKA)
Synonymous with the term ACP.
disk controller unit
(DKC)
The disk controller unit (DKC) refers to the array hardware which houses the channel
adapters and service processor (SVP).
disk cabinet unit
(DKU)
The disk cabinet unit (DKU) refers to the array hardware which houses the physical
disks in the array.
disk recovery and
restore unit (DRR)
The unit located on the ACP that is responsible for data recovery and restoration in the
event of a cache failure.
disk group
The physical disk locations associated with a parity group.
disk type
The manufacturing label burned into the physical disk controller firmware. In most
cases, the disk type is identical to the disk model number.
DMP
Dynamic multipathing.
dr
Drive.
DSF
Device support facilities.
DW
Duplex write.
DWL
Duplex write line.
ECKD
Extended count key data.
EFS
The IRIX
standard file system.
emulation modes
The logical devices (LDEVs) associated with each RAID group may have one of the
following emulation modes. These modes change the behavior of the disks and
determine their size.
OPEN-3: 2.46 GB
OPEN-8: 7.38 GB
OPEN-9: 7.42 GB
OPEN-E:13.56 GB
OPEN-K:1.74 GB
OPEN-L:36 GB
OPEN-M:47 GB
EOF
End of field.