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Glossary

Manual No. SA67-0049-01

Glossary-27

Write-Through Cache

A caching strategy whereby data is written to the SCSI drive before a
completion status is returned to the host operating system. This caching
strategy is considered more secure, since a power failure will be less likely to
cause loss of data. However, a write through cache results in a slightly lower
performance.

XOR

Exclusive “Or”, a computer language function that generates parity in RAID
systems; “

this or that but not both.”

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Содержание Global Array Manager

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Страница 3: ...01 Copyright 2002 IBM Corporation All Rights Reserved All contents of this manual are copyrighted by IBM The information contained herein is the exclusive property of IBM and shall not be copied tran...

Страница 4: ...error in this information and for damages whether direct indirect special exemplary consequential or otherwise that may result from such error including but not limited to loss of profits resulting f...

Страница 5: ...ng conventions are used to describe user interaction with the product bold The user must enter the bold text exactly as shown Press the Enter key or Enter Press the key labeled Enter or Delete etc Fil...

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Страница 7: ...g Global Array Manager Client with Linux 2 5 Install Wine 2 5 Install GAM Client 2 5 To Uninstall GAM Client Software 2 6 Chapter 3 Startup Navigation Starting Global Array Manager 3 1 Server Componen...

Страница 8: ...g and Modifying User Preferences 3 22 Alert Preferences 3 23 Event Log 3 23 Enable Global Alerts for Severity Level s 3 23 Alarm Setup 3 24 Add a Pager 3 25 Remove a Pager 3 26 Add a Fax Using Windows...

Страница 9: ...Dedicated Hot Spares 4 28 Expand Capacity 4 30 Expanding a Logical Drive 4 30 Migrating a RAID Level 4 35 Transporting a Disk Array 4 36 Clustering Teaming 4 38 Managing Channels 4 40 Spanning in Glob...

Страница 10: ...d and Foreground Initialization Status 5 22 Rebuild Status 5 23 Consistency Check Status 5 24 Expand Capacity Status 5 25 Patrol Status 5 26 Battery Backup Unit Monitoring and Maintenance 5 28 Power L...

Страница 11: ...you are using Mylex controllers that are not listed above refer to the Global Array Manager Client Installation and User Manual for Software Kit 4 GAM Client software is used to Monitor and manage vi...

Страница 12: ...eminates information on disk array or HBA subsystem status and resource utilization The Global Array Manager Client component organizes this information through an intuitive graphical display Errors a...

Страница 13: ...essor and 16 MB of system memory are recommended Network interface card connected to a functioning network Appropriate network device drivers for the installed network interface card For proper client...

Страница 14: ...r SMTP compliant messaging such as Microsoft Outlook Required for Windows Microsoft Exchange and Microsoft At Work Windows 95 for fax notification of events Refer to your server documentation and to t...

Страница 15: ...hat the network administrator for this site will be performing these installation procedures If you are installing GAM Client you may also choose to install GAM Server and its subcomponents at the sam...

Страница 16: ...UP DLL DATA1 HDR SETUP INS _SYS1 CAB LANG DAT SETUP LID _SYS1 HDR LAYOUT BIN _USER1 CAB OS DAT _USER1 HDR Installing Global Array Manager Client Software 1 If you intend to install GAM Server with GAM...

Страница 17: ...Cancel to end the installation procedure and return to the menu Figure 2 2 Welcome Dialog Box 5 When the IBM Software License Agreement screen displays click Yes to accept the terms of the agreement a...

Страница 18: ...k the box if necessary to check the Global Array Manager Client option Note If installing the Global Array Manager Client you may also choose to install Global Array Manager Server at this time Instru...

Страница 19: ...Install Wine Go to the following web site to download Wine http www rpmfind net Refer to the following web sites for further information on Wine http www winehq com http www codeweavers com Install GA...

Страница 20: ...lobal Array Manager Client with Linux 2 6 GAM Client User s Guide To Uninstall GAM Client Software 1 Query the installed GAM Client software rpm qa grep gam 2 Uninstall GAM Client software rpm e gam 5...

Страница 21: ...r component under any of the supported network operating systems Client Component Under Windows XP 32 bit and 64 bit Windows Me Windows 2000 Windows NT 4 0 Windows 98 or Linux you are ready to start t...

Страница 22: ...ager Client have a series of control buttons Some examples of these include Click this button to apply the settings made in the dialog box Click this button to cancel the settings made in the dialog b...

Страница 23: ...M Client windows Figure 3 1 are described below 1 Item 1 is the menu bar There are five menus with several selections each The contents of the menus and the functionality of several of the most import...

Страница 24: ...twork operating system running on the server e g 2000 Windows 2000 NT Windows NT NW Novell NetWare etc the operational status of the server green functioning yellow attempting connection red X unable...

Страница 25: ...d Sequence Seq Number representing where this event fell in a stream of events from the same source Local Time Day of the week month day of the month time of day and year at the local client workstati...

Страница 26: ...The logical drives configured on the controller specifying the logical drive number capacity of the logical drive configured RAID level and logical drive status Item 4 The enclosure device present on...

Страница 27: ...he Controller View is scrollable The number of targets per column can be set in the GAM2CL INI file Channel 0 represents the internal SCSI channel Figure 3 4 Controller View Window eXtremeRAID 3000 Co...

Страница 28: ...Status Icons 3 8 GAM Client User s Guide Logical Drive Consistency Check State Logical Drive Online State configured Logical Drive Offline State...

Страница 29: ...ller See Setting Up Server Groups and Servers on page 3 17 Save Configuration Ctrl S Saves a configuration file to a new filename disk and or directory Clear Configuration Removes configuration inform...

Страница 30: ...e controller selection box Log Information Viewer Toggles the Log Information Viewer a window showing a log of recent system error and status event messages The Log Information Viewer opens by default...

Страница 31: ...Figure 3 8 contains the following options Sign On Enables use of GAM s configuration and administration functions to Administrators gamroot password Enables only monitoring functions to Users Define...

Страница 32: ...s that you are currently using for data storage you will lose the data stored on the drive s Controller Information Displays key information about the currently selected controller Enclosure Informat...

Страница 33: ...added and which are not currently identified within GAM Client Advanced Functions Opens a submenu Figure 3 9 from which you can select the following options Flash Utility Provides the ability to upgra...

Страница 34: ...help options available within the Global Array Manager Client Contents F1 Displays a list of available help topics About Global Array Manager Displays the Windows standard About box Figure 3 11 Help M...

Страница 35: ...about the currently selected RAID Controller or HBA Error Table Displays a table of request sense data Sign On Enables configuration and administration functions to Administrators and monitoring funct...

Страница 36: ...mend leaving the GAM Client running as long as there are servers you wish to monitor or configure If you do exit you will be unable to receive events from GAM Server and you will not be informed of er...

Страница 37: ...shown in Figure 3 14 This is not necessary if you are starting GAM and no Server Groups are defined The Define Server Groups dialog box will display automatically Figure 3 14 Select Define Server Grou...

Страница 38: ...1 Click the Add button under the Servers section of the dialog box 2 In the Adding Item dialog box type the IP address of the server that you are adding If you re running GAM Client under Windows XP...

Страница 39: ...t account must be password protected and the password must be managed in a security conscious manner GAM relies on the server host s operating system security measures Therefore proper handling of the...

Страница 40: ...st sign on to a server host Double click a host icon in the Global Status View Controller View must be closed first The Sign On dialog opens if you have never signed on during this session or if you d...

Страница 41: ...oot If the username matches sign on is granted Administrator access level 4 The GAM Server notifies GAM Client of the success or failure of the sign on attempt and whether or not that sign on attempt...

Страница 42: ...tain the option of signing on to each server you wish to access individually 3 Click the Sign On button see Figure 3 16 Setting and Modifying User Preferences Open Settings by clicking Administration...

Страница 43: ...t Rename the log file Enable or disable the event logging function Enable Global Alerts for Severity Level s For each type of alarm Email Pager Fax Launch Application and Alarm Sound check the box es...

Страница 44: ...hanged or Click another Settings tab to set additional user preferences Alarm Setup The top half of the Alarm Setup dialog box lists the types of alarms that can be used Pager Fax Email Launch Applica...

Страница 45: ...Pager entry using the Enabled check box Type the Modem Setup String or keep the default Type a Pager Prefix or keep the default Type the phone number of someone who will receive a page Type a Pager S...

Страница 46: ...ve input click Test 6 When you are satisfied with the Pager you ve set up click OK Your new Pager entry appears in the lower window of the Alarm Setup dialog box Refer to Figure 3 20 for an example R...

Страница 47: ...system GAM supports only Microsoft At Work Fax under Windows 95 The Software field is not selectable The required fax software components should already be available as part of the normal Windows ins...

Страница 48: ...ader if desired 4 To test the fax using the settings you have input click Test 5 When you are satisfied with the Fax you have set up click OK Your new Fax entry appears in the lower window of the Alar...

Страница 49: ...ini file as follows which is located under User gam Note If you are using a fax utility program other than fax you may need to modify the FAXUSERSCRIPT accordingly COMM_SECTION FAXUSERSCRIPT usr bin...

Страница 50: ...f the Alarm Setup dialog box Figure 3 25 Figure 3 25 Email Alarm Setup 2 Click Add The Email setup box is displayed as shown in Figure 3 26 Figure 3 26 Email Setup Dialog Box 3 In the Email box Enable...

Страница 51: ...Your new Email entry appears in the lower window of the Alarm Setup dialog box Refer to Figure 3 25 for an example Remove Email 1 Select the Email alarm type in the upper window of Alarm Setup 2 Selec...

Страница 52: ...gam COMM_SECTION EMAILUSERSCRIPT usr bin mail s S R M where S is replaced with subject string R is replaced with recipients M is replaced with message file name Add an Application to Launch 1 Select...

Страница 53: ...nux you need to type the full location path beginning with a slash If you don t remember the name or path of the application click the Browse button 4 To test the application launch using the settings...

Страница 54: ...selecting an entry in the lower window of Alarm Setup and clicking Properties Communication In the Settings dialog box under the Communication tab Figure 3 29 you have the option to change any of the...

Страница 55: ...essions 4 5 6 7 8 Finish by doing one of the following Click OK to accept the communication settings and exit the Settings dialog box or Click Cancel to leave original settings unchanged or Click anot...

Страница 56: ...are based on the settings in Alert Preferences Check or uncheck specific boxes if you wish to override these defaults and change the alarms for this event Event Message Text Type new text for this eve...

Страница 57: ...r Click another Settings tab to set additional user preferences For More Information This concludes the Startup Navigation chapter For additional information on Global Array Manager options and functi...

Страница 58: ...For More Information 3 38 GAM Client User s Guide...

Страница 59: ...nvolve the following Setting or modifying controller options to suit your application needs Modifying physical device options for data transfer or tag value Creating modifying or deleting Mylex RAID C...

Страница 60: ...ntroller Options Open Controller Options as shown in Figure 4 1 Figure 4 1 Select Controller Options To configure options for a controller complete the following property pages Controller Options To c...

Страница 61: ...lide bar or typing the rate in the edit box A rate of 50 dedicates the maximum allowable resources to a rebuild allowing it to proceed at its fastest Background Initialization Allows logical drive ini...

Страница 62: ...the need to edit the mylexdrv siz file This leads to smoother operation by allowing drives of similar sizes to be treated as identical sizes for hot spares replacement drives and within arrays If you...

Страница 63: ...more logical drives with a stripe size less than 64KB a message box will open with the message 64KB Cache Line Size will be used only when all logical drives use 64KB or greater Stripe Size Active Dis...

Страница 64: ...eserved area in the RAID configured drives It works for all RAID levels and standby drives The patrol read is initiated only when the controller is idle for a defined period and has no other backgroun...

Страница 65: ...connect Allows the target to disconnect from the initiator Change the SCSI ID of this HBA Change either of the following Startup Parameters Spin up No Spin up or Controller spin up Delay Number of sec...

Страница 66: ...Figure 4 5 Select Physical Device Options The Physical Device Options dialog box Figure 4 6 displays and allows you to change certain physical device transfer options Figure 4 6 Physical Device option...

Страница 67: ...Tag Value field If you selected multiple devices together all selected devices will be changed to the values you ve specified Running RAID Assist RAID Assist is the Global Array Manager Client s wiza...

Страница 68: ...Select RAID Assist The RAID Assist Welcome dialog box displays Figure 4 8 Figure 4 8 RAID Assist Welcome Dialog Box In the RAID Assist Welcome dialog box Figure 4 8 do one of the following Click the...

Страница 69: ...y changes Automatic Configuration Automatic Configuration provides three options New Configuration Sets up a new configuration on the controller deleting the previous configuration and data if any Add...

Страница 70: ...atic configuration feature uses the maximum number of drives provides a fault tolerant RAID level when able and creates a hot spare drive for drive failure protection The number of logical drives crea...

Страница 71: ...ton You will be taken to an equivalent of the Disk Arrays page as shown in Manual Configuration except that you can only view and close the details window 3 If you accept the configuration as presente...

Страница 72: ...gured on this controller and unconfigured drive space must remain Expand Array Restripes data in your array across additional unconfigured drives to expand the capacity of the array For example open N...

Страница 73: ...SA67 0049 01 4 15 Fault Tolerance Tab Configure the following options Figure 4 13 for fault tolerance 1 Do you want Fault Tolerance Yes No 2 Do you want a Hot Spare Yes No Figure 4 13 Assisted Config...

Страница 74: ...ent User s Guide RAID Level Tab If Fault Tolerance Was Yes Figure 4 14 choose between Parity error correction RAID 5 RAID 3 or Fully redundant drives RAID 1 RAID 0 1 Figure 4 14 Assisted Configuration...

Страница 75: ...on Manual No SA67 0049 01 4 17 RAID Level Tab If Fault Tolerance Was No Figure 4 15 choose between Striping RAID 0 or Stand alone drive JBOD Figure 4 15 Assisted Configuration RAID Level With No Fault...

Страница 76: ...gical drives Yes No This is done after the configuration has been applied Figure 4 16 Assisted Configuration Logical Drives Certain Mylex PCI RAID Controllers allow Immediate RAID Availability of logi...

Страница 77: ...this message appears click Yes to request a full foreground initialization of logical drives once the new configuration is applied OR Click No to take advantage of the background initialization suppo...

Страница 78: ...rom the valid drop down list 3 Select Cache line size Valid cache line size values depend on the stripe size settings If the cache line size of 64KB is currently being used by the controller and you c...

Страница 79: ...change your answers to any of the questions you were asked click the appropriate tab to return to that screen OR If you want to view the configuration before it is applied to the controller click the...

Страница 80: ...o add or delete a logical drive s randomly This operation is called Random Add or Delete a Logical Drive s and does not affect any other existing logical drive data but it may cause an available space...

Страница 81: ...ragments unused spaces in an existing array For example open New Configuration as shown in Figure 4 21 Figure 4 21 Select New Configuration The Disk Arrays tab in Manual Configuration is where you beg...

Страница 82: ...ed to as A0 2 Select other unused drives and drag them to Disk Array A0 or click the Add Array button to create a row for Disk Array A1 then A2 A3 etc then drag unused drives to A1 or A2 A3 etc if you...

Страница 83: ...p down menu 2 Select a RAID level for your first logical drive Supported RAID levels are RAID 0 RAID 1 RAID 3 RAID 5 RAID 0 1 and stand alone drive JBOD Only RAID levels compatible with the current co...

Страница 84: ...of the background initialization support 6 Select a stripe size The stripe size is defined as the size in kilobytes 1024 bytes of a single I O operation A stripe of data data residing in actual physic...

Страница 85: ...drives then click Apply when you re done An example of a completed Manual configuration is shown in Figure 4 25 Figure 4 25 Sample Manual Configuration Just Before Apply Note In Manual Configuration...

Страница 86: ...create a Global Hot spare use the following procedure 1 Open RAID Assist by clicking Administration RAID Assist on the menu bar or the RAID Assist icon as shown in Figure 4 7 2 The RAID Assist Welcom...

Страница 87: ...dicated Hot Spare drag and drop it to the disk array that the Global Hot Spare belongs see Figure 4 27 Figure 4 27 Creating a Dedicated Hot Spare A Dedicated Hot Spare is created and a green plus sign...

Страница 88: ...ping during more operation no operation on a spanned array result configuration group may not exceed 16 physical disks Note Although OCE and RLM operations are explained separately in the following se...

Страница 89: ...ministration RAID Assist on the menu bar or the RAID Assist icon see Figure 4 7 2 Click the Manual Configuration button 3 Click the Logical Drives tab this is where you can add capacity Figure 4 28 Ex...

Страница 90: ...s improves performance but puts data at risk You should have a battery backup unit or uninterruptable power supply if selecting this feature 8 Check the Init Drive box if you want this logical drive t...

Страница 91: ...plying the Configuration A warning confirmation box appears as shown in Figure 4 31 Figure 4 31 WARNING Before Applying the Configuration 12 Type YES and click OK if you are sure you want to apply the...

Страница 92: ...apacity 4 34 GAM Client User s Guide Figure 4 32 Expand Capacity Status Box Click Close to close the Expand Capacity Status box at any time Click View Expand Capacity Status to open the status box at...

Страница 93: ...igration or those that would be a result of the migration The following table Table 4 1 describes the allowed migrations To migrate a RAID level follow these steps 1 Select Administration RAID Assist...

Страница 94: ...drives dedicated hot spares and global hot spares are not included that belong to a specific disk array by using LEDs To locate a disk array for transportability use the following procedure 1 In the C...

Страница 95: ...drives including the global and dedicated spares associated with the selected logical drive and all of the logical drives that belong to the same disk array are displayed Click the Locate Transport bu...

Страница 96: ...luster configuration Controllers that are part of the cluster configuration Channels on each cluster that share backend disk drives Select View Cluster Map to open the Cluster Map Window Figure 4 35 F...

Страница 97: ...nel colors To launch PATHpilot click Administration Advanced Functions PATHpilot The PATHpilot Information Control Console PIC will start as a separate application The information in Figure 4 36 is fo...

Страница 98: ...s listed are subject to change A channel that is not shared with any other controller is called a Private channel A channel that is shared with cluster nodes is called a Shared Channel To indicate the...

Страница 99: ...troller View window displaying four channels Figure 4 38 Controller View Four Channels Displayed When an attempt is made to create a disk array across channels the caution message in Figure 4 39 opens...

Страница 100: ...s message will display once at the first attempt Figure 4 39 Caution Mixing Channels If intermixing between Private and Shared channel happens during configuring the operation is inhibited and a warni...

Страница 101: ...in the group For example if you have four disks of 400MB each and one disk of 200MB in a pack the effective capacity available for use is only 1000MB 5x200 not 1800MB Drive packs or groups have the fo...

Страница 102: ...d Disk Array 1 Open RAID Assist by clicking Administration RAID Assist on the menu bar or the RAID Assist icon as shown in Figure 4 7 2 The RAID Assist Welcome dialog box displays Figure 4 8 3 Click t...

Страница 103: ...ltiple drives can be added by holding down Ctrl while clicking drives then dragging the selected set to a Disk Array section 3 In the Unused Disk Drives Global Hot Spares MB pane drag and drop the ava...

Страница 104: ...4 42 Select Open Configuration 1 In the Open Configuration dialog box Figure 4 43 select the configuration file you wish to open to save to the controller Figure 4 43 Open Configuration Dialog Box 2...

Страница 105: ...configuration Saving a Configuration to Disk Saves a configuration file to a new filename disk and or directory Figure 4 45 Select Save Configuration 1 In the Save Configuration dialog box Figure 4 43...

Страница 106: ...Saving a Configuration to Disk 4 48 GAM Client User s Guide...

Страница 107: ...wing Bad Block Data Request Sense Data and NVRAM Log Data Monitoring and managing SCSI and Fibre enclosure information Monitoring the performance of drives and controllers reviewing historical perform...

Страница 108: ...Note It is recommended that the Global Array Manager Client be kept active Opening the Log Information Viewer The Log Information Viewer is opened when the program is started and one or more controll...

Страница 109: ...ent Information Window A variety of information about the event is displayed to aid in troubleshooting The Event ID and Severity Level are displayed in the window s titlebar SOURCE DEVICE ADDRESS and...

Страница 110: ...oller windows are the Global Array Manager Client s Controller View see Components of the Controller View Window on page 3 5 for a detailed description Displaying Controller Information Open Controlle...

Страница 111: ...d number of channels on the controller The number of physical devices detected and the maximum number of physical devices that this controller can hold The number of logical drives configured on this...

Страница 112: ...nformation The Controller View window details which physical devices are associated with each controller channel Each stack of drives represents the physical drives connected to a single channel on th...

Страница 113: ...dor or source of the controller The controller s product identification The revision level of the hardware The back end bus width in bits Whether the following parameters are set to Yes or No Sync Sof...

Страница 114: ...k drive Device Information dialog box Click the Reset Errors button to return all error tallies to 0 If the disk drive s status is Rebuild the Rebuild button may be available so that you can initiate...

Страница 115: ...e Figure 5 6 to end the locate operation and return to normal status The PFA Count shows the amount of device errors registered Click the PFA Information button to display the PFA sense code details F...

Страница 116: ...the Error Table by clicking View Error Table on the menu bar or the Error Table icon as shown in Figure 5 8 Figure 5 8 Select Error Table If you click the Request Sense Data tab the following type of...

Страница 117: ...d view a rsd file that was previously saved 3 Click Close to close the Error Table For new PCI controllers a tab for NVRAM Error Log will be added Figure 5 10 Figure 5 10 NVRAM Error Log Similar to th...

Страница 118: ...ed by the controller before you start Windows 2000 will display a relative time stamp This is a time value that is set when the controller is powered on See Figure 5 10 Events logged by the controller...

Страница 119: ...ure 5 11 Logical Drive Information for a RAID Controller Logical Drive Information displays the following about the currently selected logical drive The logical drive number in the window s titlebar T...

Страница 120: ...ata Blocks to display a window of all bad data blocks found on this logical drive If the logical drive has been placed offline due to some external cause such as a power failure click Force On Line to...

Страница 121: ...status 3 Click the Close button to close the dialog box The Transport button opens the Disk Array Transport Information window that shows all of the physical drives including the spares associated wit...

Страница 122: ...dicates Critical status and a Red X indicates failed status You can monitor information status and additional details about enclosures by clicking the Enclosure button in Controller View Alternatively...

Страница 123: ...l components are optimal Critical Some component has failed one more failure may result in data loss Failed A failure has occurred that may result in data loss The enclosure type SES SAF TE The World...

Страница 124: ...the locate operation Click the Close button or press the Enter key to close the dialog box Details Page Select the Details Tab to display Enclosure Information Details Figure 5 15 Figure 5 15 SES Enc...

Страница 125: ...h Speed is not shown for SAF TE enclosures Failed The fan is installed but has failed The status of the power supplies in the enclosure Each power supply is designated with a number The status values...

Страница 126: ...tem for only 2 to 5 more minutes Failed The UPS is installed but has failed Error status for troubleshooting purposes Error status for an enclosure is reported in a format similar to the following exa...

Страница 127: ...e click the enclosure icon to display enclosure information about the enclosure icon Figure 5 16 Figure 5 16 Processor Device Enclosure Information SCSI Processor Device Information displays the follo...

Страница 128: ...ialization is performed open the Background or Foreground Initialization Status box as shown in Figure 5 17 to monitor the progress of or cancel the process Figure 5 17 Foreground Initialization Statu...

Страница 129: ...and you wish to reverse that 1 Click the Clear All button which deselects all drives for cancellation 2 Click Close to close the Initialize Status box at any time Rebuild Status If a rebuild process i...

Страница 130: ...her rebuilds as well Click Close to close the Rebuild Status box at any time Consistency Check Status If a consistency check process is currently underway open the Consistency Check Status box as show...

Страница 131: ...Click Close to close the Consistency Check Status box at any time Expand Capacity Status If an expand array also called MORE2 process is currently underway open the Expand Capacity Status box as shown...

Страница 132: ...r the Patrol Read Status open the Patrol Status box as shown in Figure 5 25 Figure 5 25 Select Patrol Read Status The Patrol Read Status dialog box displays Figure 5 26 You can start the Patrol Read o...

Страница 133: ...l No SA67 0049 01 5 27 Once you click on the Start button to begin the Patrol Read operation the Start button will change to Stop Click the Stop button to end Patrol Reading Figure 5 26 Patrol Read St...

Страница 134: ...ckup Unit BBU you will be able to open the BBU dialog box as shown in Figure 5 27 Figure 5 27 Select Intelligent BBU Figure 5 28 shows the Intelligent BBU window for new Mylex PCI RAID Controllers Fig...

Страница 135: ...ps below the set value Set a threshold select Set Low Power Threshold under Actions then click Apply to set the new value Current Power The current power level of the battery expressed as hours or min...

Страница 136: ...e cycles Select Recondition Battery under Actions then click Apply Reconditioning Active Process of discharging recharging the battery is underway Allow the process to complete or it will have to be r...

Страница 137: ...d to a power outage recharging may be necessary and may take several hours Note Do not interrupt the reconditioning process The system administrator must initiate the condition cycle manually The cond...

Страница 138: ...Battery Backup Unit Monitoring and Maintenance 5 32 GAM Client User s Guide...

Страница 139: ...p to date firmware maintenance releases Running a logical drive initialization Running a consistency check on a logical drive to examine and optionally restore consistency parity Encountered errors wi...

Страница 140: ...guration If it s inconvenient to follow a configuration immediately with a logical drive initialization you can decline the initialization and use this menu item to start the process at a later time T...

Страница 141: ...ization A Warning message dialog box will open for confirmation Figure 6 3 Initialization Confirmation Dialog Box Type YES to confirm the initialization and click the OK button or press the Enter key...

Страница 142: ...Check button in the Logical Drive Information dialog box to begin A message is displayed asking if you would like consistency to be restored in the event of errors Figure 6 5 Figure 6 5 Restore Consis...

Страница 143: ...s task A failed drive s data can be rebuilt to The original drive if this drive happens to be still functional A hot spare standby drive present for just this purpose or A drive inserted in place of t...

Страница 144: ...l Rebuild has completed When rebuild has completed the selected physical device AND the logical drive s of which it is a part are returned to operational status If you cancel rebuild the device return...

Страница 145: ...BIOS of the Mylex PCI Disk Array Controller As maintenance releases of this code become available this utility allows you to keep your controller current using GAM Caution If Expand Array Expand Capa...

Страница 146: ...stored in the BIOS of your selected controller This information is helpful for diagnostic and troubleshooting purposes as well as to determine whether you need to upgrade some aspect of the firmware...

Страница 147: ...lename using the file selection dialog box 3 Click Open Once you ve specified an appropriate image file the Start Flash button becomes available in the Flash Utility dialog box and the Flash file sele...

Страница 148: ...IMG contains a newer version of code 5 Click Start Flash Because flashing new code to the controller erases what was there previously two levels of confirmation are required to proceed with the flash...

Страница 149: ...ray where the new logical drive is to be created To defragment an array 1 Select Administration RAID Assist on the menu bar or the RAID Assist icon see Figure 4 7 2 Click the Manual Configuration butt...

Страница 150: ...t unused space MB in the array Click the Apply button to begin defragmenting A warning message box opens Figure 6 12 Figure 6 12 Defragmentation Warning Message 4 To confirm your decision to defragmen...

Страница 151: ...ear Configuration The Clear Configuration Dialog box opens see Figure 6 13 Figure 6 13 Clear Configuration Dialog Box 2 Select the disk array s that you want to delete 3 Click OK to clear the configur...

Страница 152: ...ng a Configuration 6 14 GAM Client User s Guide Figure 6 15 Clear Configuration Warning Message 5 To confirm your decision to clear the selected configuration type YES then click OK or click Cancel to...

Страница 153: ...ical Controller failure 1 Serious The failure of a major component within the array enclosure For example a power supply fan or physical drive 2 Error A consistency check fails or a rebuild on a drive...

Страница 154: ...request User replacd the failed device and raidbld started the rebuild None 7 4 Rebuild is over Rebuild completed successfully None 8 3 Rebuild is cancelled User cancelled the rebuild Higher priority...

Страница 155: ...k has been powered on A new physical disk has been added Controller was powered on Controller was added System has rebooted None 14 4 A physical disk has been removed User removed an unconfigured phys...

Страница 156: ...moved Physical device failed Command time out value is not correct Refer to the enclosure manufacturer s service manual 20 0 SCSI command abort on physical disk User may have requested to abort the co...

Страница 157: ...nclosure manufacturer s service manual 23 3 Soft error found An error was detected by physical device and data was recovered Run consistency check Ifproblem occurs frequently replace the physical devi...

Страница 158: ...understand the root cause 29 4 Initialization started Host started the initialization Wait till the initialization is completed If the system is shutdown prior to this process being completed the phys...

Страница 159: ...6 1 A physical disk failed because device is missing Access to the physical disk failed Replacephysical disk and rebuild it 37 1 A physical disk failed because of gross error on SCSI processor Gross e...

Страница 160: ...sk failed because of a sequence error in the SCSI bus phase handling Physical disk failure Replacephysical disk and rebuild it 45 1 A Physical disk failed because device returned an unknown status Bad...

Страница 161: ...missing Replace the Physical disk or power on all enclosures 58 3 Rebuild startup failed due to lower disk capacity Device capacity not sufficient for doing rebuild Replace with a disk having sufficie...

Страница 162: ...lost PathPilot is unable to access certain storage on any path Storage previously available is now unavailable Investigate possible causes e g cabling controller or HBA failure 65 3 A storage access p...

Страница 163: ...roblem See bad block and request sense table for more information 132 2 Consistency check on logical drive failed A logical device became critical A logical device failed See request sense data for mo...

Страница 164: ...laced the failed device and Raidbld started the rebuild None 139 4 Rebuild on logical drive is over Rebuild completed successfully only for this logical drive None 140 3 Rebuild on logical drive is ca...

Страница 165: ...er cancelled the initialization Restart initialization if required 147 2 Logical drive initialization failed One multiple physical device s failed Controller has been removed Controller has been power...

Страница 166: ...l disk during consistency check rebuild RAID Expansion operation Run a Consistency Check with the Restore option Restore data from a back up 154 4 System drive size changed A new configuration has bee...

Страница 167: ...Drives related to the Logical Drive disk channel enclosure or cabling are functional and accessible Repair or replace them if necessary 160 2 Temporary Offline RAID5 RAID3 array is available to the u...

Страница 168: ...t Enclosure Management Connection is broken Management hardware failure Fan is not present Refer to the enclosure manufacturer s service manual 272 1 Power supply failure Cable connection is broken Po...

Страница 169: ...ne 291 2 Over temperature Room temperature is too high Fan failure Turn off the system and allow it to cool down Adjust the room temperature 292 4 Storage cabinet temperature sensor is not present Enc...

Страница 170: ...er supply failure Replace the power supply 324 4 Power supply has been restored Faulty power supply has been replaced None 325 4 Power supply is not present Management connection is broken Management...

Страница 171: ...to the enclosure manufacturer s service manual 331 4 Enclosure access has been restored Enclosure has been fixed or replaced None 332 2 Enclosure access is offline Enclosure management connection is b...

Страница 172: ...r has been reset Controller received a reset command If this was an unexpected event refer to the enclosure manufacturer s service manual 390 4 Controller is found New controller has been installed Ma...

Страница 173: ...troller has been powered off None 397 4 Controller is online New controller has been installed None 398 0 Controller is gone System is disconnecting from this controller Controller was set online None...

Страница 174: ...Some physical devices may have failed Run consistency check and restore consistency 428 0 Mirror Race on critical logical drive Logical device is critical Replace failed physical disk and rebuild 429...

Страница 175: ...nused size information from this system 514 4 User logged in An array management utility user logged in on the server system Not available 515 4 User logged out An array management utility user logged...

Страница 176: ...r i960 processor error Internal Controller has encountered i960 processor specific error Controller has to be powered off and on 928 2 Internal Controller Strong ARM processor error Internal Controlle...

Страница 177: ...application The built in writing and drawing programs that come with Windows are sometimes called applets Applications that run in a web browser are often Java based applets See also Java Application...

Страница 178: ...as a redundant array RAID 1 RAID 3 RAID 5 or RAID 0 1 During the automatic rebuild process system activity continues however system performance may degrade slightly Automatic Switchover See Failover B...

Страница 179: ...e that determines what a computer can do without accessing programs The BIOS contains all the code required to control the keyboard screen drives serial communications and other functions Usually the...

Страница 180: ...e size you selected The default segment size for Mylex RAID controllers is 8K See also Stripe Size Caching Allows data to be stored in a pre designated area of a disk or RAM Caching speeds up the oper...

Страница 181: ...one and only one of its SCSI drives is not online A logical drive is considered critical because any failure of another of its SCSI drives may result in a loss of data Note I O operation can only be p...

Страница 182: ...0 controllers also monitor SCSI bus parity errors and other potential problems Any disk with too many errors will also be taken offline See also Offline Disk Media Error Management Mylex controllers t...

Страница 183: ...e size of the smallest disk in the group multiplied by the number of disks in the group For example if you have 4 disks of 400MB each and 1 disk of 200MB in a pack the effective capacity available for...

Страница 184: ...orage on a hard disk that a file has been stored in FAT 32 supports 32 bit processors Fault Tolerance Failure Tolerance The ability of a system to continue to perform its function even when one of its...

Страница 185: ...e mail fax pager SNMP or the launching of an application GAM is everything needed to manage Mylex PCI RAID Controllers SCSI Host Adapters and External RAID Controllers GUI Graphical User Interface a s...

Страница 186: ...of which is usually to share company information and computing resources among employees An intranet can also be used to facilitate working in groups and for teleconferences I O Input Output the tran...

Страница 187: ...designed for use in the distributed environment of the Internet and enforces a completely object oriented view of programming Java can be used to create complete application programs that may run on a...

Страница 188: ...ne Notice that the term online is used for both physical and logical drives LUN Logical Unit Number a SCSI representation of a system drive on a given channel and target ID This may be a single device...

Страница 189: ...used as a common unit of measure relative to time in seconds as an expression of a transmission technology s bandwidth or data transfer rates abbreviated as Mb Megabits per second Mbps is a frequent m...

Страница 190: ...AM supports two M O R E features Expand Capacity allows logical drive expansion for FFx external controllers only Expand Array allows array expansion for both PCI and FFx external controllers During t...

Страница 191: ...ate and Online OLTP Online Transaction Processing computer processing where the computer responds immediately to user requests OS Operating System software that manages the system resources and provid...

Страница 192: ...eral virtual disks whose entire capacity approximates that of the underlying disk or array Physical Device Any device connected to some kind of hardware For example SCSI disk fibre disk network disk R...

Страница 193: ...ogether in an array Mylex RAID controllers implement this technology to connect up to 15 SCSI devices per channel The different forms of RAID implementation are known as RAID levels See also Berkeley...

Страница 194: ...tains parity information which can be used for data recovery Level 5 Data is striped across several physical drives For data redundancy drives are encoded with rotated XOR redundancy Level 0 1 Combine...

Страница 195: ...wn the system RAM Random Access Memory the built in readable and writable data storage that comes with or can be added to a computer Read Ahead Cache A caching strategy whereby the computer anticipate...

Страница 196: ...the storage capacity of mirroring In a system configured under RAID 3 or RAID 5 which require at least three SCSI drives all data and parity blocks are divided amongst the drives in such a way that i...

Страница 197: ...lers that provide fibre channel interface connections to loop or fabric topologies and dual redundant loops for continuous access to large data pools These controllers are designed for homogeneous and...

Страница 198: ...at provides and manages services to other computer programs on the same or other computers The computer that a server program runs on is also frequently referred to as a server See also Application Se...

Страница 199: ...he protocol governing network management for monitoring network devices and their functions Software Driver Set of utilities and instructions for controllers to work in a specific operating system env...

Страница 200: ...l disks in the drive group Stripe Width The number of striped SCSI drives within a drive group Striping The storing of a sequential block of incoming data across multiple SCSI drives in a group For ex...

Страница 201: ...TCP IP Transmission Control Protocol Internet Protocol the basic communication language or protocol of the Internet It can also be used as a communications protocol in intranets and extranets When se...

Страница 202: ...unication structure as opposed to a local area network LAN that comprises of two or more LANs A wide area network may be composed entirely of private structures but the term also seems to connote the...

Страница 203: ...on status is returned to the host operating system This caching strategy is considered more secure since a power failure will be less likely to cause loss of data However a write through cache results...

Страница 204: ...Glossary Glossary 28 GAM Client User s Guide...

Страница 205: ...ation 4 9 Auto Drive Sizing 4 4 Automatic Configuration options 4 11 Automatic Rebuild G 2 Automatic Rebuild Management 4 3 Automatic Switchover G 2 B Background Initialization 4 3 G 2 BBU 5 28 action...

Страница 206: ...Disk Array defragmenting 6 11 spanning 4 43 transporting 4 36 Disk Device Information 6 6 Disk Failure Detection G 6 Disk Media Error Management G 6 Disk Spin up 4 4 Display Controller Information 3...

Страница 207: ...terface G 9 Internet G 10 Intranet G 10 Introduction 1 1 ISM G 11 J Java G 11 K Killing a Drive 1 2 Kilobyte G 11 L LAN G 11 Latency G 11 Loading a Configuration from Disk 4 46 Log Information Viewer...

Страница 208: ...w A 1 P Parity G 15 Parity Check G 15 Partitioning G 16 Patrol Read Status 3 11 Physical Device G 16 Physical Device Information 5 6 Physical Device Options 3 12 4 8 Platform G 16 Plug and Play G 16 P...

Страница 209: ...tware Driver G 23 Software Requirements client 1 3 Spanning 4 43 G 23 Spin up 4 7 Startup Navigation 3 1 Status background initialization 3 10 consistency check 3 11 5 24 expand array 5 25 expand capa...

Страница 210: ...Icons display controller information 3 15 error table 3 15 help 3 15 settings 3 15 TPC C Tpm C G 26 Transfer Rate G 26 Transporting a Disk Array 4 36 U User Access Level 3 19 W WAN G 26 Web G 26 Wide...

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