Hp Command View EVA Software User Manual Page 95
- Page / 113
- Table of contents
- BOOKMARKS
Rated. / 5. Based on customer reviews
owning controller that must be returned to the requesting host through the proxy controller.
Reported mirror traffic is always outbound from the referenced controller to the other controller.
• Prefetch MB/s—The rate at which data is read from physical storage into cache in
anticipation of subsequent reads when a sequential read stream is detected. Data replication
initial copy data traffic for a replicated virtual disk is reported by the owning controller in the
source volume prefetch statistics.
• Redundancy—This displays the virtual disk RAID level.
• Number of presentations—This displays the number of hosts that the virtual disk has
been presented to.
• Preferred path—This displays the path that is preferred for the I/O communication.
HP EVA virtual disk group
The virtual disk group object provides the aggregate virtual disk statistics on a disk group basis.
The counters are:
• Total Read Hit Req/s—The total number of read requests per second completed from
the storage system cache memory. Data can reside in the cache memory due to a previous
cache miss or because of a prefetch operation generated by a sequential read data stream.
• Total Read Hit MB/s—The total rate at which data is read from the storage system cache
memory because of read hit requests.
• Average Read Hit Latency—The average time it takes to complete a read request (from
initiation to information receipt) from the storage system cache memory.
• Total Read Miss Req/s—The total number of read requests (per second) that failed to
complete from the storage system cache memory and were completed from physical disks
instead.
• Total Read Miss Data Rate—The total rate at which data is read from physical disks
because the data was not present in the storage system cache memory.
• Average Read Miss Latency—The average time it takes to complete a read request
(from initiation to information receipt) from the physical disks.
• Total Write Req/s—The total number of completed write requests per second to a virtual
disk that were received from all hosts. Write requests can include transfers from a source
storage system to this storage system for data replication and host data written to snapshot
or snapclone volumes.
• Total Write Data Rate—The total rate at which data is written to the virtual disk by all
hosts, including transfers from the source storage system to the destination storage system.
• Average Write Latency—The average time it takes to complete a write request (from
initiation to receipt of write completion).
• Total Flush MB/s—The total rate at which data is written to physical storage. Data
replication data written to the destination volume is included in the flush statistics. Host writes
to snapshot and snapclone volumes are included in the flush statistics; however, data flow for
internal snapshot and snapclone normalization and copy-before-write activity is not included.
• Total Mirror MB/s—The total rate at which data moves across the mirror port in servicing
read and write requests to a virtual disk group. Write data is always copied through the mirror
port when cache mirroring is enabled for redundancy. The mirror data rate includes read
data from the owning controller that must be returned to the requesting host through the proxy
controller. Reported mirror traffic is always outbound from the referenced controller to the
other controller.
• Prefetch MB/s—The rate at which data is read from physical storage into cache in
anticipation of subsequent reads when a sequential read stream is detected. Data replication
Using the graphical user interface 95
- User Guide 1
- Contents 3
- 4 Contents 4
- Contents 5 5
- 6 Contents 6
- 1 Overview 7
- 8 Overview 8
- 4. Browsing computer1. LAN 10
- 5. Hosts2. SAN 10
- 3. HP EVA4400 storage systems 10
- 10 Overview 10
- User interface 11
- Storage systems point of view 12
- Settings point of view 13
- 14 Overview 14
- Internet Protocol support 15
- Password formats 16
- Considerations 17
- License types 20
- Instant-on licenses 20
- Permanent licenses 20
- Data migration licenses 21
- FCIP licenses 21
- Obtaining license keys 22
- Retrieving licenses 23
- Entering license keys 23
- Importing licenses 24
- 4 Provisioning storage 26
- Disk types 27
- Disk group types 27
- General guidelines 27
- Disk group capacity 28
- Redundancy (Vraid) levels 29
- Virtual disks 30
- 32 Provisioning storage 32
- Presentation 33
- Online virtual disk migration 33
- Mirrorclone migration 34
- Thin provisioning 34
- Online Help 35
- 5 Replicating storage 36
- Snapshots 37
- Mirrorclones 38
- Containers 40
- Optimizing snap creation 41
- 42 Replicating storage 42
- DR groups 43
- Creating DR groups 44
- Initializing storage systems 46
- User-initiated service mode 47
- Starting the storage system 48
- Figure 10 HSV450 rear view 49
- Resynchronizing controllers 50
- Hardware 50
- Verifying hardware status 51
- Remote service test 51
- Configuring iSCSI devices 53
- Events overview 55
- Viewing events 56
- Viewing events 57 57
- Configuring host notification 58
- Filtering events by severity 59
- Retrieving the parse file 60
- Sending the event file 62
- Creating page footer messages 63
- Setting audit logging options 64
- Configuring SNMP credentials 66
- Optimizing performance 67
- Using the right-click menu 67
- Failed transceiver 70
- Failed I/O module 70
- Failed blower power supply 70
- Version numbers differ 72
- Performance Data Collector 74
- Events and logs 79
- Logging configuration file 79
- Configuration recommendations 80
- SSL protocol 81
- Prohibited commands 81
- Backward compatibility 81
- Using friendly names 82
- Using friendly names 83 83
- Using short names 84
- Viewing storage systems 85
- Specifying the output 85
- Filtering data 86
- Commands 87
- Command modifiers 89
- Data filtering 92
- Objects and counters 93
- HP EVA virtual disk 94
- HP EVA virtual disk group 95
- HP EVA host connection 96
- HP EVA host port statistics 96
- HP EVA physical disk 96
- HP EVA physical disk group 97
- HP EVA DR tunnels 97
- HP EVA DR Group Information 98
- HP EVA Xcopy Metrics 99
- HP EVA WSame Metrics 99
- HP EVA Unmap Metrics 100
- Contacting HP 101
- Related information 101
- Typographical conventions 102
- 12 Documentation feedback 103
- Event code format 104
- Corrective action codes 105
- Coupled crash control codes 106
- Dump/restart control codes 107
- Glossary 108
- 110 Glossary 110
- 112 Index 112
Related products and manuals for Storage Hp Command View EVA Software
Storage Hp XP7 Storage User Manual
(250 pages)
(250 pages)
(58 pages)
(60 pages)© 2020, manymanuals.com. All rights reserved. | 1.536 s |
Manymanuals.com
Manymanuals.de
Manymanuals.fr
Manymanuals.it
Manymanuals.pl
Manymanuals.cz
Manymanuals.es
Manymanuals-pt.com
Comments to this Manuals