HP EVA3000 User Manual Page 146
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data entry mode The state in which controller information can be d isplayed or controller
configuration data can be entered. On the Enterprise Storage System, the
controller mode is active when the LCD on the HSV Controller OCP is Flashing.
default disk group The first disk group created at the time the system in initialized. The default
disk group can contain the entire set of physical disks in the array or just a
few of the disks.
See also disk group.
Detailed Fault
View
An HSV Controller OCP d isplay that permits a user to view detailed information
about a controller fault.
device channel A channel used to connect storage devices to a host I/O bus adapter or
intelligent controller.
device ports Controller pair device ports connected to the storage system’s physical disk drive
array through the Fibre Channel drive enclosure. Also called a device-side port.
device-side ports See device ports.
DIMM Dual Inline Memory Module. A small circuit board holding memory chips.
dirty data The write-back cached data that has not been written to storage media even
though the host operation processing the data has completed.
disk drive A ca rrier-mounted storage device supporting random access to fixed size blocks
of data.
disk drive blank A carrier that replaces a disk drive to control airflow within a drive enclosure
whenever there is less than a full complement of storage devices.
drive enclosure A unit that holds storage system devices such as disk drives, power supplies,
blowers, I/O modules, transceivers, or EMUs.
drive enclosure
event
Asignificant operational occurrence involving a hardware or software
component in the drive enclosure. The drive enclosure EMU reports these events
to the controller for processing.
disk failure pro-
tection
A method by which a controller pair reserves drive capacity to take over the
functionality of a failed or failing physical disk. For each d isk group, the
controllers reserve space in the physical disk pool equivalent to the selected
number of physical disk drives.
disk group A physical disk drive set or pool in which a virtual disk is created. A disk group
may contain all the physical disk drives in a controller pair array or a subset
of the array.
disk migration
state
A p hysical disk drive operating state. A physical disk drive can be in a stable
or migration state:
• Stable—The state in which the physical disk drive has no failure nor is a
failure predicted.
• Migration—The state in which the disk drive is failing, or failure is predicted
to be imminent. Data is then moved off the disk onto other disk drives in
thesamediskgroup.
disk replacement
delay
The time that elapses between a drive failure and when the controller star ts
searching for spare disk space. Drive replacement se
ldom starts immediately in
case the “failure” was a glitch or temporary conditi
on.
drive blank See disk drive blank.
drive enclosure See drive enclosure.
dual-loop Aconfiguration where each drive is connected to a pair of controllers through
two loops. These two Fibre Channel loops constitute a loop pair.
146
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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