HP 200 HP StorageWorks 200 Storage Virtualization System site preparation guid - Page 50

available when the HP StorageWorks LUN Con, Fibre Channel Protocol.

Get HP 200 PDF manuals and user guides View all HP 200 manuals
Add to My Manuals
Save this manual to your list of manuals

Page 50 highlights

control unit CU CVS disk adapter (DKA) disk unit (DKU) disk controller (DKC) disk recovery and restore unit (DRR) disk group disk type emulation modes To organize the storage space attached to the DKC, you can group similarly configured logical devices (LDEVs) with unique control unit images (CUs). CUs are numbered sequentially. The system supports a certain number of CUs, depending on the system model. Each CU can manage multiple LDEVs. Therefore, to uniquely identify a particular LDEV requires both the CU number and the LDEV number. Control unit. Custom volume size. CVS devices (OPEN-x CVS) are custom volumes configured using system management software to be smaller than normal fixed-size OPEN system volumes. Synonymous with volume size customization (VSC). Synonymous with the term ACP. The system hardware that houses the system physical disks. The system hardware that houses the channel adapters and service processor (SVP). The unit 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. The logical devices (LDEVs) associated with each RAID group are assigned an emulation mode that makes them operate like OPEN system disk drives. The emulation mode determines the size of an LDEV. EPO ESCON expanded LUN ExSA failover FC FC-AL FCP fence level OPEN-3: 2.46 GB OPEN-8: 7.38 GB OPEN-9: 7.42 GB OPEN-E: 13.56 GB OPEN-K: Not available on this system OPEN-L: 36 GB OPEN-M: Not available on this system OPEN-V: User-defined custom size Emergency power off. Enterprise System Connection (the IBM trademark for optical channels). A LUN is normally associated with only a single LDEV. The LUSE feature allows a LUN to be associated with 1 to 36 LDEVs. Essentially, LUSE makes it possible for applications to access a single large pool of storage. The LUSE feature is available when the HP StorageWorks LUN Configuration Manager product is installed. Extended serial adapter. Disconnecting a failed unit or path and replacing it with an alternative unit or path in order to continue functioning. Fibre Channel. Fibre Channel arbitrated loop. Fibre Channel Protocol. A level for selecting rejection of a write I/O request from the host according to the condition of mirroring consistency. 50 Glossary

  • 1
  • 2
  • 3
  • 4
  • 5
  • 6
  • 7
  • 8
  • 9
  • 10
  • 11
  • 12
  • 13
  • 14
  • 15
  • 16
  • 17
  • 18
  • 19
  • 20
  • 21
  • 22
  • 23
  • 24
  • 25
  • 26
  • 27
  • 28
  • 29
  • 30
  • 31
  • 32
  • 33
  • 34
  • 35
  • 36
  • 37
  • 38
  • 39
  • 40
  • 41
  • 42
  • 43
  • 44
  • 45
  • 46
  • 47
  • 48
  • 49
  • 50
  • 51
  • 52
  • 53
  • 54
  • 55
  • 56
  • 57
control unit
To organize the storage space attached to the DKC, you can group similarly
con
fi
gured logical devices (LDEVs) with unique control unit images (CUs).
CUs are numbered sequentially. The system supports a certain number of
CUs, depending on the system model. Each CU can manage multiple LDEVs.
Therefore, to uniquely identify a particular LDEV requires both the CU number
and the LDEV number.
CU
Control unit.
CVS
Custom volume size. CVS devices (OPEN-x CVS) are custom volumes con
fi
gured
using system management software to be smaller than normal
fi
xed-size OPEN
system volumes. Synonymous with volume size customization (VSC).
disk adapter
(DKA)
Synonymous with the term ACP.
disk unit (DKU)
The system hardware that houses the system physical disks.
disk controller
(DKC)
The system hardware that houses the channel adapters and service processor
(SVP).
disk recovery and
restore unit (DRR)
The unit 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
fi
rmware. In
most cases, the disk type is identical to the disk model number.
emulation modes
The logical devices (LDEVs) associated with each RAID group are
assigned an emulation mode that makes them operate like OPEN
system disk drives. The emulation mode determines the size of an LDEV.
OPEN-3:
2.46
GB
OPEN-8:
7.38
GB
OPEN-9:
7.42
GB
OPEN-E:
13.56
GB
OPEN-K: Not available on this system
OPEN-L:
36
GB
OPEN-M: Not available on this system
OPEN-V: User-de
fi
ned custom size
EPO
Emergency power off.
ESCON
Enterprise System Connection (the IBM trademark for optical channels).
expanded LUN
A LUN is normally associated with only a single LDEV. The LUSE feature allows
a LUN to be associated with 1 to 36 LDEVs. Essentially, LUSE makes it possible
for applications to access a single large pool of storage. The LUSE feature is
available when the HP StorageWorks LUN Con
fi
guration Manager product is
installed.
ExSA
Extended serial adapter.
failover
Disconnecting a failed unit or path and replacing it with an alternative unit or
path in order to continue functioning.
FC
Fibre Channel.
FC-AL
Fibre Channel arbitrated loop.
FCP
Fibre Channel Protocol.
fence level
A level for selecting rejection of a write I/O request from the host according to
the condition of mirroring consistency.
50
Glossary