HP EVA3000 User Manual Page 154
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- Table of contents
- BOOKMARKS
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PDU Power Distribution Unit. The rack device that distributes conditioned AC or DC
power within a rack.
petabyte A unit of storage capacity that is the equivalent of 2
50
, 1,125,899 ,906,842,62 4
bytes or 1,024 terabytes.
physical disk A disk drive mounted in a drive enclosure that communicates with a controller
pair through the device-side Fibre Channel loops. A physical disk is hardware
with embedded software, as opposed to a virtual disk, which is constructed by
the controllers. Only the controllers can communicate directly with the physical
disks.
The physical disks, in aggregate, are called the array and c onstitute the storage
pool from which the controllers create virtual disks.
physical disk ar-
ray
See array.
port A Fibre Channel connector on a Fibre Channel device.
port_name A64-bituniqueidentifier assigned to each Fibre Channel por t. The p ort_name
is communicated during the login and port discovery processes.
port-wine colored A convention of applying the color of port wine to a CRU tab, lever, or handle
to identify the unit as hot-pluggable.
power distribution
module
See PDM.
power distribution
unit
See PDU.
power supply An element that develops DC voltages for operating the storage system elements
from either an AC or DC source.
preferred address AnAL_PAwhichanodeportattemptstoacquireduringloopinitialization.
preferred path A p reference for which controller of the controller pair manages the virtual disk.
This preference is set by the user when creating the virtual disk. A host can
change the preferred path of a virtual disk at any time. The primary purpose of
preferring a path is load balancing.
protocol The conventions or rules for the format and tim i ng of m essages sent and received.
push button A switch that is engaged or disengaged when it is pressed.
quiesce The act of rendering bus activity inactive or dormant. For example, “quiesce the
SCSI bus operations during a device warm-swap.”
rack A floorstanding structure primarily designed for, and capable of, holding and
supporting storage system equipment. All racks provide for the mounting of
panels per Electronic Industries Alliance (EIA) Standard RS310C.
rack-mounting
unit
A measurement for rack heights based upon a repeating hole pattern. It is
expressed as “U” spacing or panel heights. Repeating hole pat terns are spaced
every 1.75 inches (44.45 mm) and based on EIA’s Standard RS310C.For
example, a 3U unit is 5.25inches (133.35 mm) high, and a 4U unit is 7.0inches
(177.79 mm) high.
read caching A cache method used to decrease subsystem response times to a read request
by allowing the controller to satisfy the request from the cache memory rather
than from the disk drives. Reading data from cache memory is faster than
reading data from a disk. The read cache is specified as either On or Off for
each virtual disk. The default state is on.
154
Glossary
- Part number: 5697-7026 1
- Contents 3
- About this guide 13
- Rack stability 14
- HP technical support 14
- Customer self repair 15
- Product warranties 15
- Subscription service 15
- HP websites 15
- Documentation feedback 15
- 1 Enterprise Virtu al Array 17
- Performance 18
- Scalability 18
- Operating system support 18
- Storage system components 19
- Controller soft ware 20
- Hardware 20
- Fibre Channel drive enclosure 21
- Fibre Channel lo 22
- HSV110 and HSV100 controllers 22
- P = Fibre (Host) Port 26
- CA = Fibre Channel Adapter 26
- Gathering information 27
- Host information 28
- Entering the WW 29
- Entering the WWN checksum 29
- Installing opti 31
- 3 Enterprise Virtu al Array 33
- Setting Point in time 34
- Behavior 34
- Storage s ystem s 37
- Creating disk groups 40
- Adding a disk driv e 41
- Changing the De 42
- Installing the disk drive 42
- Checking status indicators 42
- Handling fiber optic cables 43
- 4 Enterprise Virtu al Array 45
- I/O m odules 46
- I/O module status indicators 47
- Fi bre Optic Fibr 49
- Copper Fibre Channel cables 49
- Fibre Channel disk drives 49
- Disk drive stat 50
- Disk drive status displays 50
- Power supplies and blowers 51
- Power supplies 52
- Drive enclosure EMU 53
- EMU functions 54
- EMU monitoring functions 55
- EMU displays 55
- EMU indicator di 56
- Audible alarm operations 57
- Enabling the audible alarm 58
- Muting or unmut 59
- Disabling the audible alarm 59
- Enclosure numb 60
- Error Condition Reporting 62
- Reporting group feature 65
- Fibre Channel loop switches 66
- Power-on self test (POST) 67
- Reading the switch indicators 67
- HSV controllers 69
- High availability features 70
- Operator control panel 70
- Status indicators 71
- Navigation butt 72
- Alphanumeric display 72
- Displaying the OCP menu tree 72
- Displaying system information 73
- Shutting down the system 74
- Shutting the controller down 74
- Restarting the system 75
- Uninitializing the system 75
- Password options 75
- Changing a password 75
- Clearing a password 76
- Cache bat tery 77
- HSV controller cabling 77
- Rack configurations 77
- Power d istribution 77
- Rack AC po 80
- Moving and stabilizing a rack 82
- 1. H ex n ut 83
- 2. Leveler foot 83
- Customer self 85
- Replaceable parts 86
- Before you begin 88
- Types of disk failures 89
- Checking system re dundancy 89
- Verifying component failure 90
- 1. Ac t ivi t y 92
- 2. Online 3. Fault 92
- Removing a di 93
- Installing a disk 94
- Verifyin 94
- Removing a b 97
- Installing a blower 97
- Removing a po 98
- Installing a p ower supply 98
- Verifying proper operation 99
- Customer replaceable units 100
- A Regulatory notices an d 101
- Laser device 102
- European union notice 103
- Notice for Fra 104
- WEEE Recycling Notices 104
- French notice 105
- German notice 105
- Estonian notice 105
- Finnish notice 105
- Greek notice 106
- Hungarian notice 106
- Italian n 106
- Latvian notice 106
- Lithuanian notice 107
- Polish notice 107
- Portugue 107
- Slovakian notice 107
- Germany noise declaration 108
- Japanese notice 109
- Taiwanese notice 109
- Japanese 109
- Country-specificcertifications 109
- Physical specifications 110
- Power speci 111
- fications 111
- Fibre Channel sw 113
- Controller specifications 113
- Rack specifications 114
- Environmental specifications 116
- Power specifications 116
- Nominal inp ut voltage 117
- Specifications 117
- The power 117
- Condition report format 119
- Correcting err ors 120
- Power supply conditions 122
- 0.2.en.02 123
- Blower conditions 124
- Temperature conditions 125
- 0.4.en.01 N 126
- 0.4.en.03 NON 127
- EMU conditions 128
- Transceiver conditions 132
- 0.F.en.05 C 133
- Backplane conditions 135
- I/O Module conditions 135
- Host conditions 137
- C Controller fault management 139
- GUI event display 140
- Fault management displays 140
- Information type 142
- Description 142
- Glossary 143
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