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2.1.3 Array and Logical Drive Section

Figure 2–4

Array and Logical Drive Section (RS-4835-F4-5404E Model Shown)

Array and Logical Drive Section Description and Condition

Array Status Icon

These icons are found in the Array section and depict the current
state of the specific component.

• Green - Status is ok.

• Yellow - Indicates a drive component in a RAID 1, 10, 5, 6 or

50 array has failed and the array is no longer fault tolerant, or
the array is in a rebuild cycle.
For RAID 6 arrays, it indicates 1 or 2 drives have failed. See
Drive Status Icon “Critical” state.

• Red - Indicates an array is invalid or offline due to an error:

RAID 0 = One drive has failed.
RAID 1/10 = Two drives have failed from the same pair.
RAID 5 = Two drives have failed.
RAID 6 = Three drives have failed.
RAID 50 = Two drives have failed within the same sub-array.

Green (Normal)

Yellow (Warning)

Red (Error)

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Содержание 131018 - StorView Snapshot - Mac

Страница 1: ...StorView Storage Management Software RAID Module User Guide Part No 90254 01A Issue 1 0 March 30 2007...

Страница 2: ...no liability for any errors that may arise No part of this document may be transmitted or copied in any form or by any means for any purpose without the written permission of the Authors Acknowledgmen...

Страница 3: ...dded StorView Setup 21 3 1 Embedded Network Settings 21 3 1 1 Configuring Network Settings via the Wizard 21 3 1 2 Configuring Network Settings via the CLI 24 3 1 3 Configuring Network Settings within...

Страница 4: ...re 58 6 4 3 Removing a Spare 60 6 4 4 Auto Spare 61 6 5 Create the Logical Drive 62 6 6 Saving the Configuration 65 6 6 1 Saving the Configuration 65 7 SAN LUN Mapping 69 7 1 Overview 69 7 2 Terminolo...

Страница 5: ...0 5 3 Deleting a Logical Drive 117 11 Using Snapshot 119 11 1 Introduction 119 11 2 Enabling Snapshot 119 11 3 Taking a Snapshot 122 11 4 Mapping a Snapshot 125 11 5 Deleting a Snapshot 127 11 6 Perfo...

Страница 6: ...5 Command Cluster Statistics 183 A Optimizing Write Performance 185 A 1 Introduction 185 A 2 Sequential Access 186 A 2 1 Number of Outstanding Commands 186 A 3 Access Size 186 A 3 1 Access Alignment 1...

Страница 7: ...ution 3 The end user documentation included with the redistribution if any must include the following acknowledgment This product includes software developed by the Apache Software Foundation http www...

Страница 8: ...4835 F4 5404E RS 4835 E3 XPN Installation and User Guide P N 80448 01A RS 1220 F4 5412E Quick Start Guide P N 90506 01A RS 1220 F4 5412E RS 1220 E3 XPN Installation and User Guide P N 90505 01A RS 122...

Страница 9: ...twork and external subnet networks StorView has an HTML based front end accessed with a web browser and provides the interface to the end user StorView incorporates web server software as part of the...

Страница 10: ...ge solution is down for any reason and three check in packets are not received the monitoring will automatically be transferred to another StorView server 1 3 License Manager StorView has two differen...

Страница 11: ...e 1 Overwrite Data Area ODA to be created Or you can purchase a full license which provides for up to eight 8 Overwrite Data Area ODA to be created With the limited free license you can have up to fou...

Страница 12: ...he fields of the licensing information window Once your license key is entered click the Submit License Key button and the current licensing information is displayed Figure 1 4 If you attempt to excee...

Страница 13: ...eractive components animated icons and mouse over information windows an intuitive easy to use approach is provided to manage your storage solution Primary configuration functions include creating dis...

Страница 14: ...ol Bar Button Description Storage Assistant This button will start the Storage Assistant wizard which will automatically configure your storage system based on user inquiries Create Array This button...

Страница 15: ...chive Configuration This button will open a window from which you may choose to save restore or clear the configuration Note when deleting a configuration this will delete all arrays and logical drive...

Страница 16: ...rmation window Member Disk drive is a member component of an array Available Disk drive is online and available for use in an array or as a hot spare Dedicated Spare Disk drive is marked as a dedicate...

Страница 17: ...e a drive from a RAID 0 array or a drive in that array fails the remaining drive members will have this icon displayed indicating that array has failed If you accidentally remove the wrong drive in a...

Страница 18: ...th Failure displayed indicates that the subject power supply has failed A solid red icon indicates that the power supply is missing Unknown This icon indicates the enclosure power supply information f...

Страница 19: ...ller has failed in an Active Active topology or the backup battery has failed Empty This icon represents the empty controller slot for future expansion A blank plate is shown E5402E E5412E RAID Contro...

Страница 20: ...his red icon indicates that the enclosure temperature has reached or exceeded the enclosure temperature threshold If the fans are operating normally and the air flow temperature seems normal it may be...

Страница 21: ...l All components are operating normally Communication Error The SES process has lost communication with the enclosure indicated by the icon becoming grey or dim Or you have disabled Enclosure Support...

Страница 22: ...ATA Channel cards displayed on the top view of the enclosure Normal The car is operating normally Warning Unknown Fail SAS SATA Channel card has failed Missing Indicates that the information from the...

Страница 23: ...es a drive component in a RAID 1 10 5 6 or 50 array has failed and the array is no longer fault tolerant or the array is in a rebuild cycle For RAID 6 arrays it indicates 1 or 2 drives have failed See...

Страница 24: ...ree drives have failed RAID 50 Two drives have failed in the same sub array ODA Status Icon This icon is found in the Logical Drive section adjacent to the Snapshot enabled logical drive and depicts i...

Страница 25: ...ndicated the status of the server components by changing its color and state Normal Gray Status is ok Flashing Yellow Indicates a server warning that a device connected is in degraded mode Flashing Re...

Страница 26: ...lashing Red with Indicates that the storage solution was there at startup but now cannot be located Storage Solution Unmonitored This icon indicates that another StorView server is monitoring this sto...

Страница 27: ...tional monitoring Chapter 5 walks you through the Storage Assistant an automated wizard tool that allows StorView to configure your storage system If you will be manually configuring your storage syst...

Страница 28: ...StorView RAID Module 20...

Страница 29: ...nistrator for the IP address assigned by the DHCP server To identify the new IP address lease one can look for esv0 or esv1 in your DHCP Manager software If an IP address cannot be determined the soft...

Страница 30: ...choosing StorView Embedded Module Support Select Enter StorView Embedded Module Menu Mode and choose View Network Settings 1 Insert the Software and Manuals Disc into your CD drive The autorun progra...

Страница 31: ...uninitialized embedded modules and have clicked the Configure button the wizard will display a pop up message indicating all systems have been configured It will then re scan for uninitialized system...

Страница 32: ...hin your web browser Note Host based StorView is started by launching your web browser and entering the IP address of the local host followed by 9292 For more information refer to the StorView Storage...

Страница 33: ...Address field and press the Tab key or click in the Subnet Mask field 3 Enter the desired Subnet Mask in the Subnet Mask field and press the Tab key or click in the Default Gateway field 4 Enter the...

Страница 34: ...StorView RAID Module 26...

Страница 35: ...checked the box for Use SSL 2 0 under the Internet Options Advanced Security settings Embedded StorView is started by opening your web browser and entering the explicit IP address assigned to the embe...

Страница 36: ...e E MAIL tab selected There you will enter the required information and click the Activate button 2 Once you have completed the upgrade the window will reload with the E MAIL SYSLOG and SNMP tabs acti...

Страница 37: ...he SMTP mail server name E Mail messages are sent to the E Mail server using port 25 If your E Mail server is not configured to receive on port 25 then E Mail will not function properly 3 If you would...

Страница 38: ...ly completed and each addressee will receive a Test Message from the mail server Click the CLOSE button 7 Click the CLOSE button on the SETTINGS window 4 3 2 Deleting an E Mail Addressee 1 From the Ma...

Страница 39: ...the Main screen click on the SETTINGS button 2 Click the SNMP tab 3 Enter the SNMP Server name or IP address of the host you wish to receive SNMP traps 4 Enter the IP port on which the SNMP Server exp...

Страница 40: ...n on the SETTINGS window 4 4 2 Deleting an SNMP Server 1 From the Main screen click on the SETTINGS button 2 Click the SNMP tab 3 Click the DELETE button next to the SNMP Server you wish to remove The...

Страница 41: ...rge net which runs as a Windows service 4 5 1 Gathering Logs A host based StorView running the SYSLOG agent with two in band connections to RAID storage systems each with a unique WWN ID Assuming the...

Страница 42: ...please do so at this time see 4 2 Upgrading the Access License beginning on page 27 After activating the Access license you will see the following screen when the SYSLOG tab is selected The following...

Страница 43: ...hat the test was successfully completed and each SYSLOG server will receive a Test Message Click the CLOSE button 4 5 5 Delete a SYSLOG Server 1 Access the Settings window and select the SYSLOG tab 2...

Страница 44: ...ype in the Old Password and press the Tab key or click in the next text box 4 Type in the New Password and press the Tab key or click in the next text box 5 Re type the New Password and click the CHAN...

Страница 45: ...to a Global license to enable these features 1 From the Main screen click on the SETTINGS button then click the PREFERENCES tab 2 Click the pull down menu for Select Monitoring Group and choose Group...

Страница 46: ...d additional explicit IP addresses of any other StorView server you wish to include to receive packets that is outside the subnet and click ADD button Otherwise skip to step 5 5 Click the APPLY button...

Страница 47: ...ter The StorView Storage Assistant is a wizard like feature that will automatically configure your storage system after it has obtained some brief information from the user 1 To begin click the Storag...

Страница 48: ...ck the PREVIOUS button to move back one screen and make any necessary changes 4 Select a host server connection for this storage from the list of detected connections Enter a name for this server conn...

Страница 49: ...TA drive types You must create the logical drives from array s comprised of the same type of drives then return back to this page and select the other drive type and create additional logical drive No...

Страница 50: ...s 6 Enter the capacity for the logical drive GB s or you may use the default capacity The value is expressed in GBs 7 Click the check box next to the named server connection s displayed in the Server...

Страница 51: ...iguration Summary window If you have used up all the available capacity the fields will gray out and the available capacity will display 0 GB in red 8 You are presented with a summary of your selectio...

Страница 52: ...completes the configuration of your storage solution Before you bring the storage system online and into service we recommend that a backup copy of the configuration be made see 6 6 Saving the Config...

Страница 53: ...anage your disk arrays assign hot spares and create the logical drives You should have a basic understanding of RAID concepts 6 1 1 RAID Levels The following are the drive requirements for each suppor...

Страница 54: ...ption It is possible to perform the initialization later This recalculates the parity based on current data ensuring data and parity are consistent Logical Drive Availability To accommodate hosts with...

Страница 55: ...rite performance with RAID 6 when compared to RAID 5 due to the requirement for storing parity twice for each write operation A RAID 6 configuration also requires N 2 drives to accommodate the additio...

Страница 56: ...set through drop down menu selections or check boxes The parameters define the details of the array and are saved in the configuration file The configuration file is stored on all disk drives that are...

Страница 57: ...at has the Available icon displayed The icon will change to Selected As you select drives the projected size of the array is displayed in the upper right corner of the window Note You will notice numb...

Страница 58: ...umber of drives chosen Reduce the number of sub arrays For RAID 6 You must choose either 6 11 12 or 16 disk drives to enable the RAID 6 option Otherwise when the CREATE button is clicked a pop up wind...

Страница 59: ...50 6 arrays for detailed information see Optimizing Write Performance beginning on page 185 For optimum performance you want to do as many full stripe writes as possible Note The controller firmware w...

Страница 60: ...mined sizes to optimize the read performance based on your data patterns 9 Set the Writeback Cache options Click the pull down menu to select from Disabled or choose one of the pre determined cache th...

Страница 61: ...ing the initialization will cause your array to be trusted If you stop the initialization you want to return at a later time but before you being to use the array in a live environment and initialize...

Страница 62: ...ted with RAID 5 6 and 50 Disabling writeback cache ensures that the data is sent to the drives before status is returned to the host With writeback cache enabled if a short term power failure occurs t...

Страница 63: ...n which you could choose the option to Trust This option should only be used in environments where the user fully understands the consequences of the function The trust option is provided to allow imm...

Страница 64: ...g the Stop link located to the right of the progress bar 6 3 1 Pause Resume the Initialization You can temporarily pause the initialization process and resume the process at a later time 6 3 1 1 Pause...

Страница 65: ...re Drive Use Rules Drives must be equal to or greater than the capacity of the array drive members You cannot mix drive types in the same array all SATA or all SAS You cannot mix drive types in the sa...

Страница 66: ...ll see a confirmation window indicating the process was successful click the CLOSE button 5 Click the CLOSE button on the Drive Information window 6 4 2 Assigning a Dedicated Spare 1 From the Main scr...

Страница 67: ...ton on the Drive Information window Note Only arrays that the spare drive is large enough to replace any member drive of that array or of the same drive type will be displayed in the pull down menu Fo...

Страница 68: ...ther uses 1 From the Main screen click on a disk drive labeled Dedicated or Global in the enclosure front view that you wish to remove as a spare The Drive Information window will open 2 Click the REM...

Страница 69: ...e This option allows the user to just insert a replacement drive and the rebuild will begin instead of opening the Drive Information window for the replacement disk drive and assigning it as a hot spa...

Страница 70: ...ocumentation to verify it supports such sizes You may wish to avoid choosing combinations of a region from one array and from another array to create your logical drive This will reduce data fragmenta...

Страница 71: ...intend to make your Snapshots available as logical drives Virtual LUNs VLUN you must SAN LUN Map all logical drives That includes regular logical drives and the snapshot logical drives Any settings m...

Страница 72: ...properly cabled 8 Click the CREATE button to finish creating the logical drive You will receive a screen prompt that the command was successful click the CLOSE button If the command was unsuccessful r...

Страница 73: ...al file Should the situation occur where a configuration is cleared you are instantly able to re establish your storage system by restoring the configuration from the external file It is recommended t...

Страница 74: ...o continue or CANCEL to quit 5 Next you are presented with the Save As screen If you wish to use the default file name select the directory and click the Save button otherwise enter the name you wish...

Страница 75: ...Configuring a Storage Solution 67 6 After a successful download you will see a confirmation window Click the CLOSE button Figure 6 24 File Name Screen...

Страница 76: ...StorView RAID Module 68...

Страница 77: ...s which are used to specify the format In a host system with multiple FC ports all adapters will typically use the same Node Name but unique Port Names HBA Port Name Port Name This is an eight byte he...

Страница 78: ...appings using the Add New Map feature If a mapping exists selecting a HBA Port Name will display the current mapping s and its parameters In the Topology Information section you will find information...

Страница 79: ...SAN LUN Mapping 71 Figure 7 2 SAN LUN Mapping Screen RS 1220 F4 5402E Shown...

Страница 80: ...on the right hand side of the window provides tools for adding modifying and deleting SAN LUN Mappings 7 4 1 HBA Ports Name Section This section provides a list of the discovered named and unnamed fib...

Страница 81: ...NNECTION Section In the SELECTED HOST HBA PORT CONNECTION section a graphic appears when a Host HBA Port is selected and illustrates the physical connection from the Host HBA Port to the connector at...

Страница 82: ...rives That includes regular logical drives and the snapshot logical drives 1 From the Main screen click the SAN Mapping icon in the Tool Bar 2 Select and name the Host HBA port or Host HBA Initiator I...

Страница 83: ...present the mapped logical drive to the Host system Click the drop down menu and choose the desired number c Select an access permission for the mapping Choose from the drop down menu Read Write or R...

Страница 84: ...PPLY button 6 You will receive a confirmation click the OK button to continue or CANCEL to exit and return to the SAN LUN Mapping window 7 You may continue to create more mappings by repeating the abo...

Страница 85: ...me section that contains the mapping to be removed 3 Select the Mapping to remove from the MAPPINGS section If there are multiple mappings for this Host Port and you want to remove them all you can sh...

Страница 86: ...MAPPINGS section Note Make a note of the settings for this mapping to use in step 6 4 Click the REMOVE MAPPING button 5 You will receive a confirmation click the OK button to continue or Cancel to exi...

Страница 87: ...rs to the last time the APPLY button was clicked For example if you create a new mapping and click APPLY then change the name of the Host Port and decide you don t want that change clicking the RESTOR...

Страница 88: ...StorView RAID Module 80...

Страница 89: ...ion User controllable functions include updating RAID Controller firmware updating the Expansion module firmware Disk I O or EBOD I O modules synchronizing the date and time resetting or shutting down...

Страница 90: ...t that changed the controller status see 14 6 5 Controller Port Events beginning on page 164 When the Controller Information window opens the controller s status is displayed using status icons and a...

Страница 91: ...osure For more information on the configuration WWN and port LUN assignment see 9 2 1 Identity beginning on page 92 8 2 4 Operations These items include a group of buttons that allow the user to reset...

Страница 92: ...raded bring the second controller up and flash its firmware to the lower version Then start both controllers and resume operations 1 Click the Controller icon located just above the Tool Bar The Contr...

Страница 93: ...controller automatically restarting Note For more information on License Information see 1 3 2 Feature License beginning on page 3 8 2 4 2 Updating the Expansion Module Firmware Note On the RS 1220 E3...

Страница 94: ...customer service representative or technical support 4 After locating the file click the UPLOAD button You will see an acknowledgement window appear indicating the status of the update followed by th...

Страница 95: ...ller Logs 1 Click the Controller icon located just above the Tool Bar The Controller Information window will open 2 Click the CLEAR LOGS button Figure 8 10 Main Screen RS 1220 F4 5412E Shown Figure 8...

Страница 96: ...n 4 Click the CLOSE button at the bottom of the Controller Information window 8 2 4 4 Exporting the Controller Logs 1 Click the Controller icon located just above the Tool Bar The Controller Informati...

Страница 97: ...nter a name and location for the file then click the OK button 4 Click the CLOSE button at the bottom of the Controller Information window 5 Open the event log with a text editor program Figure 8 14 C...

Страница 98: ...StorView RAID Module 90...

Страница 99: ...ntroller operational functions Since your storage solution may be different from another you may want to make changes to the controller parameters to optimize the system for your application This is a...

Страница 100: ...he controller s host ports The Advanced Settings window is divided into three sections Identity Fault Tolerance and Host Ports 9 2 1 Identity In the Identity section you can make changes to the Config...

Страница 101: ...ld 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 w...

Страница 102: ...de single controller configurations selecting this option stops the controller from constantly checking for a partner controller When operating a duplex Active Active configuration deselect this optio...

Страница 103: ...uild operation The higher the value the more time the processor will spend on the rebuild operation reducing the time to complete the operation It is recommended to balance the two priority parameters...

Страница 104: ...r which indicates FC Host 1 and FC Host 2 connectors respectively Controller 0 refers to the left controller and Controller 1 is the right controller Controller Port Data Rate Use the Automatic settin...

Страница 105: ...et ID for both controller s port 1 It can range from Soft address or 0 125 The default is ID 5 Note The ports are identified in the software as P0 and P1 they refer to the label on the RAID Controller...

Страница 106: ...A then select Loop Only and if you are connecting F_Port switch or N_Port HBA then select Point to Point 9 2 3 3 E5402E E5412E RAID Controller Systems In the Host Ports section you can change the data...

Страница 107: ...ed Array Functions Deleting an Array Modifying an Array Verifying an Array Parity Check Identifying Drive Members Rebuilding an Array Expanding an Array Trusting an Array Restore and Clearing the Conf...

Страница 108: ...proceeding 1 Stop all host I O operations 2 From the Main screen Configuration section click the Array_Name you wish to delete 3 The Array Information screen will appear click the DELETE ARRAY button...

Страница 109: ...n Note If the array was trusted or never initialized you can also initialize the array from this window by clicking the INITIALIZE button Note If an array has been initialized the button will change t...

Страница 110: ...e table below provides a description of each option Figure 10 4 Array Information Window Figure 10 5 Verify Options Screen Option Description Check Parity This option reads all the data and parity cal...

Страница 111: ...on the Stop link located to the right of the progress bar Rewrite Parity This option reads all the data calculates the XOR of the data and writes this out as the new parity This is the fastest to comp...

Страница 112: ...This is used to turn on the identify function Clicking on the Drive Identity icon will cause all drive members of that array in the representation of the enclosure front view to have the Drive Identi...

Страница 113: ...from a working array and that drive is now flagged as a failed drive regardless of whether or not you re insert the drive quickly If you do not have a hot spare defined the array will not automatical...

Страница 114: ...tolerant during the expansion Should a disk drive fail in a fault tolerant array during the expansion the expand operation will continue as normal at which time it will flag the drive as failed and us...

Страница 115: ...e Before Expansion and After Expansion analysis 7 If your settings are correct click the EXPAND button 8 You will be prompted to confirm the Expand operation Type your password and click the GO button...

Страница 116: ...ted across the entire drive The parity data will be inconsistent and so a drive failure within a trusted array will cause data loss 1 On the Main screen in the Tool Bar click the Create Array icon 2 T...

Страница 117: ...mmended to periodically save the configuration so that it is up to date see 6 6 1 Saving the Configuration beginning on page 65 10 3 1 Restoring the Configuration 1 From the Main screen Tool Bar click...

Страница 118: ...n the Main screen for each RAID 5 6 or 50 array Perform a Verify Parity operation before using those arrays This will ensure that the data and parity data are correct 10 3 2 Clearing the Configuration...

Страница 119: ...apshot feature it will be necessary to set the Configuration WWN based to the same WWN as when the snapshot license key was issued This is because the snapshot license key is generated so that it work...

Страница 120: ...StorView RAID Module 112 You will receive a confirmation of the operation Click the CLOSE button Figure 10 19 Clear Configuration Confirmation Pop up Window...

Страница 121: ...ettings From the Drive Information window you will also find functional controls that allow you to locate a drive and execute a rebuild operation 10 4 1 Accessing the Drive Information Window 1 From t...

Страница 122: ...formation window will open 2 Click the LOCATE button 3 A sub menu will open in the Drive Information window from which you will select the time interval to blink the Drive s Activity LED Select the ti...

Страница 123: ...e is available 2 If you were just interested in the available free space click the CLOSE button Otherwise to continue with creating a logical drive see 6 5 Create the Logical Drive beginning on page 6...

Страница 124: ...oose a free space region to be used for the expansion 4 In the Add Capacity box enter the amount of the selected region to expand the logical drive You may use the entire free region space or a portio...

Страница 125: ...ng an array Deleting a logical drive is an option that allows the user to remove an existing logical drive that is no longer needed or desired If the logical drive was previously used be sure to make...

Страница 126: ...ck the GO button Click the CANCEL button to exit without making any changes 5 You will receive a screen prompt that the command was successful click the CLOSE button If the command was unsuccessful re...

Страница 127: ...Snapshot support while an array expansion or array initialization is occurring Please wait for the operation to complete before attempting to enable Snapshot Important If you intend to make your Snap...

Страница 128: ...the ENABLE SNAPSHOT button If you have exceeded the limited free license you will be prompted to upgrade by entering a license key To upgrade continue with step 3 otherwise skip to step 4 Figure 11 1...

Страница 129: ...for this logical drive You should see the array you created for the ODA from step 1 For more information see C 2 Overwrite Data Area beginning on page 196 Note It is recommended that you have an arra...

Страница 130: ...a much larger stripe size Note The stripe sizes available in the drop down menu will change dynamically based on the size of the ODA entered For example if you specify an ODA greater than 549 GBs the...

Страница 131: ...cedure You will receive a notice prompting you to ensure the applications have been synchronized and the logical drive is dismounted to ensure a valid snapshot is taken You will see a confirmation win...

Страница 132: ...Snapshot ODA Management window 5 Click the CLOSE button on the Snapshot ODA Management window 6 Click the CLOSE button on the Logical Drive Information window Figure 11 7 Snapshot Message Figure 11 8...

Страница 133: ...rtant If you intend to make your Snapshots available as logical drives Virtual LUNs VLUN you must SAN LUN Map all logical drives That includes regular logical drives and the snapshotted logical drives...

Страница 134: ...Snapshot 0 of Logical Drive 0 3 Choose the host port check boxes you wish the snapshot logical drive to be available then click the APPLY button 4 Click the CLOSE button 5 Access your host operating s...

Страница 135: ...one you are deleting will also be deleted For example if there are four snapshots Snap 00 Snap 03 and you delete Snap 01 then Snap 02 and Snap 03 will also be deleted 1 From the Main screen select the...

Страница 136: ...you wish to delete from the Snapshots list window then click the DELETE SNAPSHOT button 4 Click the DELETE SNAPSHOT button 5 You will see a message that the execution was successful click the CLOSE bu...

Страница 137: ...drive first When the snapback command is issued the existing data will be overwritten and replaced with an exact copy of the Snapshot image 1 If necessary perform a backup of the logical drive before...

Страница 138: ...example if there are four snapshots Snap 00 Snap 03 and you snapback Snap 01 then Snap 02 and Snap 03 will also be deleted as well as Snap 01 5 Click the CLOSE button on the Snapshot ODA Management w...

Страница 139: ...ogical drive When performing this operation all snapshots for this logical drive will be lost 1 From the Main screen select the logical drive to which you wish to disable Snapshot support The Logical...

Страница 140: ...apshot support will result in the loss of all Snapshots for this logical drive 4 Click the DISABLE button 5 You will receive a confirmation window click the CLOSE button 6 Click the CLOSE button on th...

Страница 141: ...al Access license If you are using the embedded version of StorView you must have dual controllers installed duplex topology each with embedded StorView installed At startup each StorView server will...

Страница 142: ...documentation for more information 12 3 2 Scatter Gather Microsoft Windows Only To increase general I O performance by allowing larger data transfers we recommend editing the MaximumSGList parameter...

Страница 143: ...e software see section 13 2 Updating Embedded StorView on page 141 1 From the Main screen click the ABOUT button located in the upper right corner of the window under the StorView logo The About windo...

Страница 144: ...age displayed on that StorView server After clicking the Take Control link on the Main screen StorView will perform a scan and reload the configuration for this system The StorView Server which previo...

Страница 145: ...iscover storage solutions in order to refresh the display and update status information From the Main screen click the RESCAN button located on the far left side of the screen After a few moments the...

Страница 146: ...ow choose to mute the alarm for the enclosure s or you may choose to disable that alarm for all future events and notifications The alarm must be enabled to restore normal alarm notifications To mute...

Страница 147: ...nical support personnel with event and configuration information to assist with troubleshooting 1 From the Main screen click the TECH SUPPORT button located in the upper right corner of the window und...

Страница 148: ...local disk Enter a name for the file and click Save The software will create a file with your user data a capture of the event log files and a capture of all configuration information Technical suppo...

Страница 149: ...3 Type the name of the firmware file or click the Browse button and locate the file The file name will be similar to storview 3 06 xxxx nb en bin 4 Enter your login password and click the UPLOAD butt...

Страница 150: ...StorView RAID Module 142...

Страница 151: ...differences include the type of events logged and in some cases the ease of interpretation StorView event logs provide a more user friendly language approach to describing the event The controller s...

Страница 152: ...he StorView log is the exact time the event was received by StorView and can be slightly off for the actual time it occurred in the controller log After synchronization events that occurred while the...

Страница 153: ...ing and Navigating the StorView Event Log To access the Event Logs click on the LOGS button located under the focused StorView server icon on the Main screen Figure 14 1 Main Screen with Event Log Scr...

Страница 154: ...dled by the clear controller log function found in the Environmentals section Event Type Icons 14 3 Exporting the StorView Event Log Note This option is applicable to the host based version only The e...

Страница 155: ...t the log file click the LOGS button on the Main screen for the storage system you are logged into 2 Click the EXPORT button in the Event Logs window Figure 14 3 Main Screen RS 1220 F4 5412E Shown Fig...

Страница 156: ...rmat will be a comma delimited format If you are using a Mozilla type web browser you will see the following screen This product provides you with a few more options through the Advanced button Click...

Страница 157: ...on the host server from this window when using the host based version of StorView 1 To clear the log file click the LOGS button on the Main screen for the storage system you are logged into The Event...

Страница 158: ...rating system event log and the decimal value is the format the OS event log will use to display the Event ID You can double click the specific event in the operating system log and it will display a...

Страница 159: ...ngineering use Error 0xB01 2817 Internal hardware or firmware failure Fault SDRAM or damaged internal bus Internal hardware Memory or bus error on the indicated channel Replace the controller Contact...

Страница 160: ...blem in the power supply Replace the controller Replace the defective Power Supply or Power Supply Cooling module Internal transfer error Error 0xB1A 2842 Hardware problem Replace the controller Contr...

Страница 161: ...2882 Battery charging complete Special feature mode Controller can be operated with battery removed and no LED indication occurs No action necessary The controller has been powered off Information 0x...

Страница 162: ...2910 Partner controller started failback No action necessary Failback completed Information 0xB5F 2911 Completion of failback process No action necessary The controller firmware has been upgraded to v...

Страница 163: ...3 CEMI firmware is current No action necessary Automatic or Manual CEMI firmware upgrade from original CEMI FW version Release num Build num to new version Release num Build num completed successfully...

Страница 164: ...p to date current image s CRC 16 digit hex CRC code or was updated successfully from old image CRC 16 digit hex CRC code to new image CRC 16 digit hex CRC code Information 0xB8B 2955 Applicable to the...

Страница 165: ...on all the Disk I O or EBOD I O modules connected to the controller At the end of the update process if the update process is successful the RAID Controller and Disk I O or EBOD I O module will be re...

Страница 166: ...the alarm The audible alarm has been enabled and will allow all alarms to be heard No action necessary Alarm x is Off Muted Where x is the alarm number Currently there is only one alarm in the enclosu...

Страница 167: ...l of cables connecting the enclosures Replace the disk drive Replace the cables Rebuilding has failed due to an unrecoverable error on the new drive w SN xxxxxxx Slot nn Drive number in the array Erro...

Страница 168: ...r bus error Check cabling and ensure the disk drives are properly seated A rebuild has started on the drive w SN xxxxxxx Slot nn Drive number Information 0xB30 2864 A rebuild has started No action nec...

Страница 169: ...ost recovery mechanisms to be used Details Host Loop x Host Loop ID y Mapped LUN Requested z Op Code zz Sense Data uu Error 0xB40 2880 Typically due to a non recoverable media error hardware error or...

Страница 170: ...ary An array expansion has restarted on Array name Information 0xB6A 2922 Expansion has restarted No action necessary The writeback cache on Array name has been disabled Reason s See causes Informatio...

Страница 171: ...ted drive w WWN xxxxxxxxxxxxxxxx or SN xxxxxxx Target ID num has been inserted Error 0xB7B 2939 A SATA drive with an A A MUX Transition card was installed in a system with an older model controller RS...

Страница 172: ...by port ID xx so that the loop would be re initialized A LIP was generated because of a loop failure A LIP was generated by port ID xx because of a loop failure No action necessary Host Loop xx is no...

Страница 173: ...indicates a firmware error in the host fibre channel chip Contact technical support The controller has generated a LIP on Host Loop xx due to a loop error Error 0xB3D 2877 Controller initiated a LIP...

Страница 174: ...be the root cause of this error You may occasionally see this error during drive insertion failover failback or drive removal As long as the system remains at SES_LEVEL_3 the user does not intervene I...

Страница 175: ...es not support status detection Information 0xC6C 3180 Unknown status No action necessary Fan zz is not installed Information 0xC6C 3180 Cooling fan module was removed Re inset the cooling fan module...

Страница 176: ...181 Temperature sensors are reporting enclosure temperatures have reached the threshold of 70 C Automatic system shutdown will begin In Active Active configurations one controller will shutdown its pa...

Страница 177: ...ary The serial number and key entered are incorrect Remote features are temporarily disabled Error 0x104 260 The serial number and key specified in the server settings file is not a correct match Open...

Страница 178: ...e and start StorView and press the Rescan button or restart the StorView service Multicast socket creation failure reason Warning 0x202 514 StorView could not setup the necessary communication paths t...

Страница 179: ...ll connections accessing this StorView Server wait 1 minute and restart them Restart the system The Server performed a CGI request but an internal error prevented the Server from returning the results...

Страница 180: ...e system Start up is complete Information 0xA01 2561 The controller module has been loaded by the StorView Server No action necessary Several failures encountered while trying to communicate with the...

Страница 181: ...a larger storage area for this snapshotted logical drive Logical Drive ID s had an ODA unassigned from it Information 0xB82 2946 ODA was unassigned No action necessary Logical Drive ID s had an ODA a...

Страница 182: ...was drained with a loss of the metadata Loss of snapshot Perform a new snapshot and ensure the power remains constant Metadata in the cache is invalid or out of date Warning 0xB88 2952 A controller wa...

Страница 183: ...has either timed out or been removed Re insert the disk drive Replace the disk drive Command xx Sense Key yy Ext Sense zz The drive has failed for the specified command with the indicated SCSI sense k...

Страница 184: ...StorView RAID Module 176...

Страница 185: ...Ahead Statistics Write Clustering Statistics RAID 5 50 6 Write Statistics From the Main screen click the Logical Drive Statistics icon in the Tool Bar The controller maintains individual access stati...

Страница 186: ...s Tab Statistic Description Reads This is the average number of MBs transferred in the last few seconds from the logical drives controllers or ports This value is expressed in MB seconds Writes This i...

Страница 187: ...l Block Address LBA 0x0000070 and access size 0x80 expressed in decimal 128 Using 512 byte blocks on the disk drives it can be seen that this is a read of 64 Kbytes which is the command size Alignment...

Страница 188: ...chunk size of 64K In this case the above access will actually involve 2 data drives since it needs to access 8K in the first drive 0x80 0x70 0x10 blocks 8K and the remaining 56K in the next drive 0x7...

Страница 189: ...command queue whenever it receives a new read command that is not satisfied by an existing read ahead cache buffer In a multi threaded operating system commands from one thread may be interspersed wi...

Страница 190: ...ture of the data access pattern from the host Read Ahead Command Efficiency This is the percentage of the number of read command hits versus the projected number of read ahead command hits This is a m...

Страница 191: ...Rate This is the percentage of the number of write commands that are part of a cluster versus the total number of write commands that have been issued This gives an indication of the sequential nature...

Страница 192: ...quires that the controller not just check the immediately previous command The controller will search back for a number of commands to try to determine if the new command is exactly sequential to any...

Страница 193: ...his type of write access is termed a Full Stripe Write Note This appendix was written for RAID 5 However with RAID 6 which uses two parity drives the size of the stripe based on the number of data dri...

Страница 194: ...r of write commands sent simultaneously Setting the host to send up to 64 commands should prove adequate Alternatively enabling writeback cache will have a similar effect as the controller can then cl...

Страница 195: ...iculty in realizing the maximum performance possible introduces the concept of a sub array Suppose an array consisted of two RAID 5 sets see Figure A 1 Distribution of Data and Parity in a RAID 5 with...

Страница 196: ...sub array A 5 1 Faster Rebuild A rebuild operation must read data and calculate parity from all the remaining drives in the RAID set If multiple sub arrays are used this means that it is only necessa...

Страница 197: ...enable Single Controller Mode in the Controller Parameters tab Be sure to disable this option when the partner controller is to be replaced If you are operating in a Stand Alone configuration enable t...

Страница 198: ...pare is enabled The array will begin rebuilding once a valid replacement drive is inserted in the drive slot of the failed drive Consistently occurring time out errors when the browser window is open...

Страница 199: ...In most cases you can simply re insert that drive that was incorrectly removed and the array will return to the same state it was in prior to removing the drive For RAID 5 50 6 arrays a drive failure...

Страница 200: ...Be sure to verify all data stored during this type of incidence to ensure data reliability Expanding Array is displayed as Critical Known issue and should be corrected in the next software release Dur...

Страница 201: ...r and wait until I O traffic has settle down before opening the StorView GUI back up You will still continue to receive email notifications and Event logging During heavy data I O when I try to make a...

Страница 202: ...StorView RAID Module 194...

Страница 203: ...can also be presented back to the host server as a snapshot virtual logical drive in which the server will see this virtual LUN and its data just like any other logical drive However there is one exc...

Страница 204: ...ernal storage area on an array that is dedicated to storing data from a snapshotted logical drive The data stored on the ODA is the data from the logical drive that needed to be overwritten after a sn...

Страница 205: ...size A large stripe size will offer a smaller number of data areas while a smaller stripe size will offer more data areas If the server application issues a high percentage of small writes in a random...

Страница 206: ...ime reference marker that allows a system administrator restoration of a logical drive data to the state it was at the time the snapshot was taken Due to disk data caching it is required to keep track...

Страница 207: ...to any type of incoming SCSI command in the same way as the original logical drive The exception is with write commands since the snapshots represent frozen data in time it is not allowed for the hos...

Страница 208: ...StorView RAID Module 200...

Страница 209: ...ring the Configuration 110 Clearing the Controller Logs 87 Clearing the Event Log 149 Command Cluster Count 183 Command Cluster Interval 184 Command Cluster Statistics 183 Command Size 179 Configurati...

Страница 210: ...fferent Node Name 93 Disable Writeback Cache 52 Disabling Snapshot 131 Disk I O Module 12 Drive Event Array Critical 160 162 Array Expansion Complete 162 Array Expansion Restarted 162 Array Initializa...

Страница 211: ...n Reset 164 Host Port Incorrect Address 164 Logged in at ID 165 Loop Down 164 Loop Up 164 SAS Host Port Down 164 SAS Host Port Up 164 Host Ports 96 Hot Spare Drives 57 i Identifying Drive Members 104...

Страница 212: ...Read Ahead Cache 52 Read Ahead Command Efficiency 182 Read Ahead Command Hit Rate 182 Read Ahead Statistics 181 Reads Statistics 178 Rebuild Priority 95 Rebuilding an Array 105 Related Documentation...

Страница 213: ...sion 135 Spare Drives 57 Starting StorView 27 Static IP 25 Statistics 177 Status Environmental 83 Storage Assistant 39 Storage Solution Icon 18 StorView Manager Console 27 StorView Server Events 169 S...

Страница 214: ...StorView RAID Module 206...

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