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Controller Advanced Settings The following describe the components of the Identity section: • Configuration Name - This is the name you will assign to the configuration. The configuration contains all the information that defines the disk arrays, logical drives, SAN LUN Mapping, hot spare drives and controller specific settings. If you wish to change the configuration name, enter the new name in the block provided. Click the APPLY button followed by the CLOSE button. • Configuration WWN - This is the RAID Controller's WWN reported to the outside world to identify the StorView configuration. If a new WWN is showing up in the list, it is possible for you to have a configuration WWN on your system where there is not a controller in the storage system with the same WWN. For example: if you have one or two controllers in your system with no configuration. Note there is no WWN in the Configuration WWN select box, only Controller 0/1. Then create an array. Then pull out Controller 0. (If you only had a single controller in the system then insert another physical controller. If you have dual controllers then just leave Controller 1 in there. Now go back and look at your Configuration WWN you will notice a different WWN for the configuration then the controller's WWN. The user can only set the Configuration WWN to Controller 0 or Controller 1's WWN. But if there is a stale WWN then it will show it in the list indicating to the user what it is currently set to. The Configuration WWN is what is reported to the outside world no matter what port you are plugged into the system. This way if you swap controllers (most likely because of a failure) your Configuration WWN will still report the same WWN as it did before so you will not have to change any mappings on your host or fibre channel switch. If another controller was used to create the configuration, its WWN is displayed. You should assign the configuration WWN to the installed controller. In this case click the pull-down menu and select Controller 0 or Controller 1. Click APPLY and restart the StorView. Important If you are using the Snapshot feature, your feature license key is based on the Configuration WWN which is based on the RAID Controller's WWN used at the time of licensing. If you modify the Configuration WWN, the feature license key will no longer be valid and the snapshot function (feature) will be disabled. • Controller LUN - This option allows the user to set a specific LUN number or disable the Controller LUN. By default the Controller LUN is automatically assigned the next LUN number after the last logical drive. In the event you have an operating system that is having a problem with the Controller LUN being displayed, click the pull-down selection and choose "Disabled." • Different Node Name - Selecting this option allows the controller to report a different Configuration WWN for Port 0 and Port 1 (Host 0 and Host 1 connectors). Normally, when deselected, a host connected to either port will see the same Configuration WWN. When enabled (selected) you will see a slightly different WWN for each port but the same Configuration name. This option is useful to users who are connecting the storage to a switch employing a fabric topology where the same WWN is not tolerated. 93

Section	Page
Introduction	9
1.1 Overview	9
1.2 Inter-Server Communication	9
1.2.1 Multicast	9
1.3 License Manager	10
1.3.1 Access License Limits	10
1.3.2 Feature License	11
StorView Quick Tour	13
2.1 The Work Area	13
2.1.1 Tool Bar	14
2.1.2 Enclosure Section	15
2.1.3 Array and Logical Drive Section	23
2.1.4 Server Sidebar and Top Section	25
2.2 How to Use this Document	27
Embedded StorView Setup	29
3.1 Embedded Network Settings	29
3.1.1 Configuring Network Settings via the Wizard	29
3.1.2 Configuring Network Settings via the CLI	32
3.1.3 Configuring Network Settings within StorView	32
3.1.4 Getting a New IP Address	33
Getting Started	35
4.1 Starting StorView	35
4.2 Upgrading the Access License	35
4.3 E-MAIL	37
4.3.1 Configuring E-Mail Notices	37
4.3.2 Deleting an E-Mail Addressee	38
4.4 SNMP	39
4.4.1 Configuring SNMP Traps	39
4.4.2 Deleting an SNMP Server	40
4.5 SYSLOG	41
4.5.1 Gathering Logs	41
4.5.2 SYSLOG Daemon	41
4.5.3 Operational View	42
4.5.4 Configuring SYSLOG	42
4.5.5 Delete a SYSLOG Server	43
4.6 Changing the Password	44
4.7 Monitoring Settings	45
4.7.1 Additional Monitoring Servers	46
4.7.2 Remove Monitored StorView Server IP	46
Storage Assistant	47
5.1 Assisted Automatic Configuration	47
Configuring a Storage Solution	53
6.1 Creating Disk Arrays	53
6.1.1 RAID Levels	53
6.1.2 Terminology	54
6.1.3 Optimization and Drive Selection for RAID 5 and 6	56
6.2 Create the Array	56
6.2.1 Configuring Array Writeback Cache	62
6.3 Initializing the Array	63
6.3.1 Pause/Resume the Initialization	64
6.4 Adding Hot Spare Drives	65
6.4.1 Assigning a Global Spare	65
6.4.2 Assigning a Dedicated Spare	66
6.4.3 Removing a Spare	68
6.4.4 Auto Spare	69
6.5 Create the Logical Drive	70
6.6 Saving the Configuration	73
6.6.1 Saving the Configuration	73
SAN LUN Mapping	77
7.1 Overview	77
7.2 Terminology	77
7.3 Accessing SAN LUN Mapping	78
7.4 Overview: SAN LUN Mapping Window	80
7.4.1 HBA Ports Name Section	80
7.4.2 ADD NEW MAP Section	81
7.4.3 SELECTED HOST HBA PORT CONNECTION Section	81
7.5 Creating a SAN LUN Mapping	82
7.6 Deleting a SAN LUN Mapping	85
7.7 Modifying a SAN LUN Mapping	86
Controller Environmentals	89
8.1 Overview	89
8.2 Controller Environmentals	89
8.2.1 Status	91
8.2.2 Hardware/Firmware	91
8.2.3 Configuration	91
8.2.4 Operations	91
Controller Advanced Settings	99
9.1 Overview	99
9.2 Advanced Settings	99
9.2.1 Identity	100
9.2.2 Fault Tolerance	102
9.2.3 Host Ports	104
Managing the Storage Solution	107
10.1 Overview	107
10.2 Advanced Array Functions	108
10.2.1 Deleting an Array	108
10.2.2 Modifying Arrays	109
10.2.3 Verify Parity	109
10.2.4 Identifying Drive Members	112
10.2.5 Rebuilding an Array	113
10.2.6 Expanding an Array	114
10.2.7 Trust an Array	116
10.3 Restoring and Clearing the Configuration	117
10.3.1 Restoring the Configuration	117
10.3.2 Clearing the Configuration	118
10.4 Advanced Drive Options	121
10.4.1 Accessing the Drive Information Window	121
10.4.2 Locate Drive	122
10.5 Advanced Logical Drive Functions	123
10.5.1 Viewing Unassigned Free Space	123
10.5.2 Expanding a Logical Drive	123
10.5.3 Deleting a Logical Drive	125
Using Snapshot	127
11.1 Introduction	127
11.2 Enabling Snapshot	127
11.3 Taking a Snapshot	130
11.4 Mapping a Snapshot	133
11.5 Deleting a Snapshot	135
11.6 Performing a Snapback	137
11.7 Disabling Snapshot	139
Failover, Performance and Additional Functions	141
12.1 Overview	141
12.2 How StorView Server Failover Works	141
12.3 StorView Performance Optimization	142
12.3.1 Execution Throttle	142
12.3.2 Scatter/Gather	142
12.4 Time Out Issues	142
12.5 Additional StorView Functions	143
12.5.1 About	143
12.5.2 Take Control Monitoring	144
12.5.3 Rescan	145
12.5.4 Alarm Mute and Enable/Disable	146
Support and Updates	147
13.1 Tech Support	147
13.2 Updating Embedded StorView	149
Event Logs	151
14.1 Overview	151
14.2 Accessing and Navigating the StorView Event Log	153
14.3 Exporting the StorView Event Log	154
14.4 Clearing the StorView Event Log	157
14.5 Operating System Event Log	158
14.6 List of Events	159
14.6.1 Controller Events	159
14.6.2 Expansion Module Events	165
14.6.3 Alarm Events	166
14.6.4 Drive and Array Events	167
14.6.5 Controller Port Events	172
14.6.6 Enclosure Events	174
14.6.7 StorView Server Events	177
14.6.8 SnapShot Events	181
14.7 Failed Drives Codes	183
14.8 SAS Fatal Error Codes	183
Statistics	185
15.1 Overview	185
15.2 Access Statistics	186
15.3 Command Size - Alignment Statistics	187
15.4 Read-Ahead Statistics	189
15.5 Command Cluster Statistics	191
A.1 Introduction	193
A.2 Sequential Access	194
A.2.1 Number of Outstanding Commands	194
A.3 Access Size	194
A.3.1 Access Alignment	194
A.4 Sub-Array	195
A.5 Multiple Drive Failures	196
A.5.1 Faster Rebuild	196
A.6 Summary	196
B.1 Problems You May Encounter	197
C.1 Overview	203
C.1.1 Terminology	203
C.2 Overwrite Data Area	204
C.3 Overwrite Data Area Location	205
C.4 Selecting the ODA Stripe Size	205
C.5 Overwrite Data Area Storage Capacity	205
C.6 ODA Assignment	206
C.7 Snapshots and Caching	206
C.7.1 Application Caches	206
C.7.2 Operating System Cache	207
C.7.3 RAID Controller Cache	207
C.8 Virtual LUNs	207

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Controller Advanced Settings

The following describe the components of the Identity section:

•

Configuration Name - This is the name you will assign to the configuration. The configuration

contains all the information that defines the disk arrays, logical drives, SAN LUN Mapping, hot spare

drives and controller specific settings.

If you wish to change the configuration name, enter the new name in the block provided. Click the

APPLY

button followed by the

button.

•

Configuration WWN - This is the RAID Controller’s WWN reported to the outside world to identify

the StorView configuration.

If a new WWN is showing up in the list, it is possible for you to have a configuration WWN on your

system where there is not a controller in the storage system with the same WWN. For example: if

you have one or two controllers in your system with no configuration. Note there is no WWN in the

Configuration WWN select box, only Controller 0/1. Then create an array. Then pull out Controller

0. (If you only had a single controller in the system then insert another physical controller. If you have

dual controllers then just leave Controller 1 in there. Now go back and look at your Configuration

WWN you will notice a different WWN for the configuration then the controller’s WWN. The user can

only set the Configuration WWN to Controller 0 or Controller 1’s WWN. But if there is a stale WWN

then it will show it in the list indicating to the user what it is currently set to. The Configuration WWN

is what is reported to the outside world no matter what port you are plugged into the system. This

way if you swap controllers (most likely because of a failure) your Configuration WWN will still report

the same WWN as it did before so you will not have to change any mappings on your host or fibre

channel switch.

If another controller was used to create the configuration, its WWN is displayed. You should assign

the configuration WWN to the installed controller. In this case click the pull-down menu and select

Controller 0 or Controller 1. Click

APPLY

and restart the StorView.

Important

If you are using the Snapshot feature, your feature license key is based on the

Configuration WWN which is based on the RAID Controller’s WWN used at the time

of licensing.

If you modify the Configuration WWN, the feature license key will no

longer be valid and the snapshot function (feature) will be disabled.

•

Controller LUN - This option allows the user to set a specific LUN number or disable the Controller

LUN. By default the Controller LUN is automatically assigned the next LUN number after the last

logical drive.

In the event you have an operating system that is having a problem with the Controller LUN being

displayed, click the pull-down selection and choose “Disabled.”

•

Different Node Name - Selecting this option allows the controller to report a different Configuration

WWN for Port 0 and Port 1 (Host 0 and Host 1 connectors). Normally, when deselected, a host

connected to either port will see the same Configuration WWN.

When enabled (selected) you will see a slightly different WWN for each port but the same

Configuration name. This option is useful to users who are connecting the storage to a switch

employing a fabric topology where the same WWN is not tolerated.