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                                                                                                            Understanding RAID 

www.3ware.com 

9

Available RAID Configurations

The following RAID levels and configurations are available for drives 
attached to a 3ware RAID controller: 

„

RAID 0

„

RAID 1

„

RAID 5

„

RAID 10

„

RAID 50

„

Single Disk 

„

JBOD

„

Hot Spare

RAID 0

Provides striping, but no mirroring or redundancy of any kind. Striped disk 
arrays achieve high transfer rates because they can read and write data on 
more than one drive simultaneously. The stripe size is configurable in the 
3ware BIOS Manager (3BM) and in the 3ware Disk Manager (3DM 2). 
Requires a minimum of two drives.

When drives are configured in a striped disk array (see Figure 1), large files 
are distributed across the multiple disks using RAID 0 techniques. 

Striped disk arrays give exceptional performance, particularly for data 
intensive applications such as video editing, computer aided design and 
geographical information systems. 

RAID 0 arrays are not fault tolerant. The loss of any drive results in the loss of 
all the data in that array, and can even cause a system hang, depending on 
your operating system. RAID 0 arrays are not recommended for high 
availability systems unless additional precautions are taken to prevent system 
hangs and data loss.

Figure 1.   RAID 0 Configuration Example

RAID 1

Also known as a mirrored array. Mirroring is done on pairs of drives. 
Mirrored disk arrays write data to two drives using RAID 1 algorithms (see 

Содержание 3ware 9000 Series

Страница 1: ...3ware Serial ATA RAID Controller Supports the 9000 Series PN 720 0114 01 March 2005 User Guide...

Страница 2: ...itten consent of AMCC 455 West Maude Ave Sunnyvale CA 94085 Trademarks 3ware Escalade and 3DM are all registered trademarks of AMCC The 3ware logo 3BM StorSwitch TwinStor and R5 Fusion are all tradema...

Страница 3: ...5 Getting Help While Using 3BM 25 Exiting the 3BM Configuration Utility 26 3ware Disk Manager 3DM 2 27 Browser Requirements for 3DM 28 Setting up Mozilla 28 Installing 3DM 29 Installing 3DM on a Micro...

Страница 4: ...3BM via the main 3BM Screen 84 Creating a New Unit 85 Creating a Unit through 3DM 86 Creating a Unit through 3BM 87 Ordering Units in 3BM 91 Partitioning and Formatting Units 91 Creating a Hot Spare...

Страница 5: ...g Units 135 Verifying a Unit through 3DM 135 Verifying a Unit through 3BM 136 Maintaining Your Controller 139 Determining the Current Version of Your 3ware Driver 139 Updating the Driver and Firmware...

Страница 6: ...AID Controller User Guide Limited Warranty 187 Exclusions 187 State Law Provisions 188 Obtaining Warranty Protection 188 AMCC Technical Support and Services 189 Sales and ordering information 189 Feed...

Страница 7: ...that runs in a browser 3ware Disk Manager 2 or 3DM 2 You can also perform many tasks at the command line using 3ware s Command Line Interface CLI The CLI is described in a separate manual available f...

Страница 8: ...ler and all associated drives Configuring Units Describes how to configure new units and spares change existing configurations and set unit policies Maintaining Units Describes how to check unit and d...

Страница 9: ...is used to refer to the controller which is currently selected in this drop down list Unit refers to one or more disks configured through 3ware to be treated by the operating system as a single drive...

Страница 10: ...About This Guide 4 3ware 9000 Series Serial ATA RAID Controller User Guide...

Страница 11: ...00S 8 9500S 12 9500S 8MI 9500S 12MI Features of the 3ware 9000 series controllers include Advanced RAID features for greater data protection and management Support for battery backup provides added da...

Страница 12: ...ard which meets the following criteria PCI slots that comply with PCI 2 2 or above standards PCI slot that meets the Plug and Play and PC99 specifications Note For all 3ware 9000 series models install...

Страница 13: ...lays information in a browser It requires the following Internet Explorer 5 5 and later or Mozilla 1 2 or later JavaScript must be enabled Cookies must be enabled For best viewing screen resolution sh...

Страница 14: ...disks allows data to be written and accessed on more than one drive at the same time Striping combines each drive s capacity into one large volume Striped disk arrays achieve highest transfer rates an...

Страница 15: ...triped disk array see Figure 1 large files are distributed across the multiple disks using RAID 0 techniques Striped disk arrays give exceptional performance particularly for data intensive applicatio...

Страница 16: ...taneously reading alternating sections of the file For the smaller random transactions the data is read from a single optimal drive head Figure 2 RAID 1 Configuration Example RAID 5 Combines striping...

Страница 17: ...performance Requires a minimum of six drives Several combinations are available with RAID 50 For example on a 12 port controller you can have a grouping of 3 4 or 6 drives A grouping of 3 means that t...

Страница 18: ...the number of disk drives available for use Review the information under Understanding RAID Concepts and Levels on page 8 to determine the type of RAID configuration most appropriate for your needs a...

Страница 19: ...cognize unit capacity in excess of 2 TB If the combined capacity of the drives to be connected to a unit exceeds 2 Terabytes TB you can enable auto carving when you configure your units 6 or more RAID...

Страница 20: ...ine Interface 3BM 3ware BIOS Manager 3BM is a BIOS level tool for creating deleting and maintaining disk arrays rebuilding arrays designating hot spares and setting controller policies 3BM is the tool...

Страница 21: ...spares Monitoring of SMART thresholds can be turned on and off in 3DM For details see Viewing SMART Data About a Drive on page 118 Staggered Spinup allows drives that support this feature to be powere...

Страница 22: ...g time or background rebuild and verify tasks should be given more processing time Write Cache Write cache can be enabled or disabled using 3BM 3DM2 and CLI When write cache is enabled data will be st...

Страница 23: ...controller and drives follow the instructions in 3ware 9000 Series Serial ATA RAID Controller Installation Guide If you do not have a hardcopy of this manual you can download it from the 3ware websit...

Страница 24: ...Series Serial ATA RAID Controller Installation Guide You will also find instructions for updating the driver under Updating the Driver and Firmware on page 140 Set Up Management and Maintenance Featur...

Страница 25: ...ies the screens have changed and some additional features are provided If you have a 7000 or 8000 series controller the BIOS screens you see will be somewhat different than those shown in this chapter...

Страница 26: ...creen indicates the problem and remains on your screen longer 4 If you have more than one 9000 series controller in your system a screen lists the available boards See Figure 6 In this case highlight...

Страница 27: ...series controllers in your system the 7000 8000 series controllers are not listed on the selection screen shown in Figure 6 Instead an additional BIOS summary will appear for the 7000 8000 series cont...

Страница 28: ...able to the operating system when you boot your computer If this section does not appear no units have been configured If you have more than one unit the boot unit is the one at the top of the list Yo...

Страница 29: ...in 3BM they appear at the bottom of the 3BM screen Table 4 Working in 3BM To do this Use these keys Move between units or drives in a list and between fields and buttons Up and Down Arrow Keys OR Lef...

Страница 30: ...nd model number cache memory size slot of the 3ware card and whether or not BBU support is available Shift F5 Return to the main 3ware BIOS Manager screen from the Advanced Details screen Any key Move...

Страница 31: ...ls Press Shift F5 from the main screen Note that the particular versions shown in the screen shot below may not be current Figure 9 Advanced Detail Screen To return to the main screen Press any key Ge...

Страница 32: ...s ask you to confirm the configuration 2 Type Y The booting process resumes To exit without saving changes 1 Press Esc 2 If you have unsaved changes 3BM will ask you whether you want to save the chang...

Страница 33: ...available for 9000 series controllers Two levels of access are provided user and administrator Users have view only access they can check the status of drives and units while Administrators can view a...

Страница 34: ...his chapter are examples only Screenshots were taken in Internet Explorer The actual look of the windows will depend on the browser 3DM version and operating system in use Setting up Mozilla Details a...

Страница 35: ...indows XP and Windows Server 2003 The latest service packs should be installed for any Windows release To install 3DM on a Windows system 1 Insert the 3DM CD ROM and click Install 3DM 2 when the menu...

Страница 36: ...mail settings Note If you do not want email alerts to be sent to anyone leave None in these fields and click Next to go on to the next screen In the Server field enter the name or IP address of your e...

Страница 37: ...ives you the option of starting 3DM and opening the browser window 8 If you elect to launch the web interface a Security Alert may appear as shown in Figure 12 Click Yes continue You may install the c...

Страница 38: ...ol Panels Add or Remove Programs In the Add or Remove Programs control panel select 3DM and click Change Remove Installing 3DM for Linux or FreeBSD You can install 3DM from the command line or from a...

Страница 39: ...yes If you enable e mail notification you will be asked to provide additional information the name of the mail server the user name for the person who will send the E mail notification typically the l...

Страница 40: ...u Note that if you downloaded 3DM from the web replace mnt in the previous command with root 4 Eject the CD ROM disk when finished cd home eject cdrom Note If 3DM Linux is reinstalled or restarted cl...

Страница 41: ...quire http without the s You can also replace localhost with the IP address of the computer that contains the 3ware controller For example https IP address 888 Note If you are using a 64 bit AMD proce...

Страница 42: ...tor or from a Windows command prompt type ipconfig From a Linux command prompt type ifconfig Logging In When you first view 3DM in a browser you must log in before you can view or change any informati...

Страница 43: ...be compatible with the driver that is loaded a firmware flash upgrade may be required Figure 13 3DM Main Screen The menu bar across the top of the screen gives you access to other pages in 3DM You ca...

Страница 44: ...t can be scheduled rebuild verify and self test and maintenance of individual units Unit configuration can also be done through the Management Maintenance page The Monitor menu gives you access to the...

Страница 45: ...ller and associated drives Automatic refreshes can also be set For details see Setting the Frequency of Page Refreshes on page 43 Note If you click Refresh on the browser window you will be taken back...

Страница 46: ...s on the current controller To see this page choose Management Controller Settings from the menu bar Scheduling Page Lets you view and change the schedule for tasks that affect all units on the curren...

Страница 47: ...pendently of each other The default password for both the User and Administrator is 3ware Passwords are case sensitive You can only change passwords if you are logged in as Administrator If you change...

Страница 48: ...r alarms with severity of Error only For more information about events and alarms see Viewing Alarms on page 117 Event notification is initially set up during 3DM installation but can be changed on th...

Страница 49: ...s that remote access has been enabled or disabled Setting the Incoming Port You can set the port which 3DM uses to listen for incoming messages If you are not sure which port would be the best to use...

Страница 50: ...on the menu bar 2 In the Page Refresh section of the 3DM 2 Settings Page select how often you want the page to be refreshed in the Minutes Between Refresh field Note If you don t want 3DM to refresh...

Страница 51: ...page as the pages are organized on the 3DM menu bar Controller Summary Page Controller Details Page Unit Information Page Unit Details Page Drive Information Page SMART Details About Drive at Particu...

Страница 52: ...r ID you see in 3DM 2 may not match the number that you see for the same controller in 3DM version 1 x Model The model name of the controller The model number is also printed on a sticker on the outsi...

Страница 53: ...g on the controller Driver The driver version being used to interact with the controller BIOS The BIOS version on the controller Monitor The Monitor version on the controller This field appears only f...

Страница 54: ...ar and provides summary information about each unit To see details about a particular unit click the link in the Unit column Unit The unit number assigned to the unit by the firmware For 9000 series c...

Страница 55: ...Migrating or Verifying the percentage complete is also shown Unit Details Page Figure 18 Unit Details Page The Unit Details page appears when you click an ID number on the Unit Information page Becau...

Страница 56: ...Capacity The total capacity of the unit capacities of subunits are not shown Type The type of unit or subunit RAID 0 RAID 1 RAID 5 RAID 10 RAID 50 Single Disk Spare JBOD or Disk Volumes Displays the...

Страница 57: ...of each one To see the SMART data for a drive click the link in the Port column Port The port to which the drive is connected Model The model of the drive Capacity The physical capacity of the drive N...

Страница 58: ...to customer support Note In most cases the status of the drive will not correspond to the status of the unit shown on the Unit Information page SMART Details About Drive at Particular Port Page Figur...

Страница 59: ...00 series controllers show separate settings for Rebuild Migrate Rate and Verify Rate as shown in Figure 21 The Rebuild Migrate Rate also applies to initialization Although the same rate is used for r...

Страница 60: ...ager 3BM You can see if this setting is enabled in the Other Controller Settings field at the bottom of this Controller Settings page If Disable Write Cache on Unit Degrade is enabled upon degrade of...

Страница 61: ...h can only be changed in the BIOS 3BM For more information see Setting Policies for a Controller through 3BM on page 76 This section does not appear for 7000 and 8000 series controllers 2TB Auto Carvi...

Страница 62: ...Scheduling page appears when you choose Management Scheduling from the menu bar The Scheduling page is not available for 7000 and 8000 series controllers If you want to schedule tasks for one of those...

Страница 63: ...e schedule If you remove all the schedule times for a particular background task initializations rebuilds and migrations will run anytime as they are needed Verify will only run if started by the CLI...

Страница 64: ...SMART thresholds indicate when a drive is likely to fail based on the number of errors that have been recorded through SMART Self Monitoring Analysis and Reporting Technology If any of the disk drives...

Страница 65: ...ly removing or adding drives which are not in hotswap carriers can result in a system hang or may even damage the system and the drive In 9000 series controllers rescan checks empty ports for newly pl...

Страница 66: ...mmary information about each drive in the unit Unit Information Unit Number The unit number assigned to the unit by the firmware Unit numbers for 9000 series are in sequential order Unit numbers for t...

Страница 67: ...nit will not start actively verifying until the scheduled time and the status will indicate Verify Paused The Unit Details page will indicate whether a unit is actively verifying If verify scheduling...

Страница 68: ...configures a unit while it is on line Migration can be used to change only the RAID level to expand the capacity by adding additional drives or to change the stripe size Caution Once migration of a un...

Страница 69: ...unmount a unit under Linux unmount the mount point to where the RAID unit is mounted For example if you want to remove unit 0 and you know that 0 corresponds to dev sdb you should unmount all partiti...

Страница 70: ...ing system is notified that the unit was deleted In Linux the device node associated with this unit is removed In Windows the Device Manager will reflect the changes under the disk drives icon Availab...

Страница 71: ...configurations see Available RAID Configurations on page 9 When you are configuring a RAID 50 with twelve drives an additional field appears in which you select the number of drives per subunit 3 4 o...

Страница 72: ...Source Error during Rebuild These check boxes let you set the policies for the unit These policies can also be set and changed on the Controller Settings page For details about these policies see Unit...

Страница 73: ...th Whichever issues an alarms command first determines which can see alarm data For more information about any of the alarms that appear on the Alarms page see AEN Messages on page 163 Clear Alarms Th...

Страница 74: ...e can be enabled on the 3ware RAID controller When the status is not Ready write caching is automatically disabled on all units attached to the controller BBU Status Indicates the status of the BBU Po...

Страница 75: ...o Fault and the battery will be disconnected electronically Battery Temperature Indicates the temperature status of the battery The BBU measures and evaluates the battery pack temperature continuously...

Страница 76: ...including email notification for alarms passwords page refresh frequency whether remote access is permitted and the incoming port for 3DM to listen for requests The initial settings for most of these...

Страница 77: ...essage using the saved e mail settings Password Use the fields in this section to set the passwords for the User and Administrator When 3DM is first installed the default password for both is 3ware Ch...

Страница 78: ...s to access 3DM from a remote computer Incoming Port Listening Port This field specifies the HTTP port to be used by 3DM when listening for communications The default port setting is 888 If you change...

Страница 79: ...ion about setting the task rate see Setting Background Task Rate on page 124 Viewing Information About Different Controllers If you have more than one controller in your system you can easily view inf...

Страница 80: ...he right of the menu bar This drop down is available on all pages that provide controller specific features When you select a different controller from this list the page in view changes to reflect th...

Страница 81: ...te of controller policies in 3DM in the Other Controller Settings section of the bottom of the Controller Settings Page Changes to these policies can only be made in 3ware BIOS Manager 3BM Number of d...

Страница 82: ...inup and Delay between spinup settings If staggered spinup is disabled then the spin up command is sent to all of the drives at boot time resulting in all of the drives spinning up simultaneously Numb...

Страница 83: ...and the last volume containing 1TB This auto carving feature is sometimes referred to as multi LUN where each volume that is created is referred to as a LUN All of these policies can be set and chang...

Страница 84: ...igured disks 1 At the main 3BM screen Tab to Policy and press Enter 2 On the Policy Control screen Tab to Export Unconfigured Disks press Enter to display the choices use the arrow keys to select Yes...

Страница 85: ...very to cover the case where there is a software RAID layer using some redundancy on top of the 3ware RAID configuration If case of a second drive failure the software RAID layer can still provide red...

Страница 86: ...ave been carved into volumes will retain their individual volumes existing data is not affected To use auto carving 1 Enable the 2 TB auto carving feature You can do so using 3DM 3BM or the 3ware CLI...

Страница 87: ...rage and it will be greater than 2 TBs be sure to enable the auto carve policy before creating the unit When volumes have been created through auto carving they cannot be deleted except by deleting th...

Страница 88: ...Configuring Your Controller 82 3ware 9000 Series Serial ATA RAID Controller User Guide...

Страница 89: ...ructions for performing the following configuration tasks Creating a New Unit Creating a Hot Spare Enabling and Disabling the Unit Write Cache Setting Unit Policies through 3DM Changing An Existing Co...

Страница 90: ...pare delete a unit and remove units or drives You can also have 3DM rescan the controller if you have added drives or units For information about working in 3DM see 3ware Disk Manager 3DM 2 on page 27...

Страница 91: ...in the unit You may include from one to twelve drives in the unit depending on the number available For information about how many drives to select for a given RAID level see Table 2 on page 12 You m...

Страница 92: ...izes are better for sequential I O such as video and larger stripe sizes are better for random I O such as databases Striping size is not applicable for RAID 1 because it is a mirrored array without s...

Страница 93: ...er will reflect the changes under the disk drives icon 9 Partition and format the unit Steps will vary depending on the operating system 10 Mount the new unit Note For RAID 5 units with 5 or more disk...

Страница 94: ...rives 2 After all drives for the unit are selected Tab to the Create Unit button and press Enter Tip You can also press Alt C to choose Create Unit 3 On the 3ware Disk Array screen make sure that the...

Страница 95: ...ng the Unit Write Cache on page 95 7 Tab to the field Stripe Size and select the desired striping size 16 64 or 256 KB Figure 35 Stripe Sizes for a RAID 5 8 Optional Tab to the field Continue on sourc...

Страница 96: ...this case you use the PgUp and PgDn keys to bring more information into view 11 Type Y to continue delete any existing data on the drives and create the unit Note For RAID 5 units with 5 or more disks...

Страница 97: ...in 3BM press F8 to save your changes and exit Partitioning and Formatting Units After you create a unit whether through 3BM or 3DM it needs to be formatted partitioned and mounted before it can be use...

Страница 98: ...e unit fdisk BI dev da0 disklabel dev da0 disklabel B R r da0 4 Create or make the file system newfs dev da0c You can also use sysinstall to format and partition the unit Creating a Hot Spare You can...

Страница 99: ...GBytes If you have 120 GB drives from different manufacturers chances are that the capacity varies slightly For example one drive might be 122 GB and the other 123 GB even though both are sold and ma...

Страница 100: ...You ll see the words Hot Spare appear next to the drive in the Available Drives list Figure 37 Hot Spare Indicated If a hot spare is already enabled you can disable it by pressing s again 3 If you are...

Страница 101: ...mited period of time up to 72 hours in the event of a system power loss When a BBU is installed if the battery is not Ready write cache is disabled Notes For 9000 series controllers a setting at the B...

Страница 102: ...rs in the left most column to indicate that it is selected 2 Tab to the Maintain Unit button and press Enter 3 In the Maintain Array screen Tab to the field Array s Write Cache State Figure 38 Unit Wr...

Страница 103: ...nit policies 1 Choose Management Controller Settings from the menu bar 2 In the Unit Policies section of the Controller Settings Page check the boxes to select the policies you want to be in effect fo...

Страница 104: ...Serial ATA RAID Controller CLI Guide This section includes the following topics about changing existing configurations RAID Level Migration RLM Overview Changing RAID Level Expanding Unit Capacity In...

Страница 105: ...example if the unit consists of four 200 GB drives in a RAID 5 then 1 drive could be removed after migrating to RAID 0 with no loss of data However drive reduction typically also results in the loss...

Страница 106: ...g state until the migration process is complete The migration process cannot be aborted and must be allowed to finish before a rebuild or verify to the unit is permitted Warning It is important that y...

Страница 107: ...el must be changed Expanding unit capacity can be accomplished while the unit is online without experiencing any data loss This process is also referred to as Online Capacity Expansion OCE To expand a...

Страница 108: ...configuration of the boot unit the unit containing the operating system you must reboot the system in order to see the new unit capacity 2 Unmount all file systems Under Windows go to Start Administra...

Страница 109: ...you want to reassemble the drives on another controller use the Remove Unit button in 3DM instead of the Delete Unit button Or if you re at the BIOS level already you can shut down the computer and p...

Страница 110: ...l typically see really bad results bad errors and most likely a reset of the controller or a system hang Under Windows go to Start Administrative Tools Computer Management and select Disk Management R...

Страница 111: ...Deleting a Unit through 3BM 1 At the main 3BM screen select the unit in the list of Exportable Units by highlighting it and pressing Enter or Space An asterisk appears in the left most column to indi...

Страница 112: ...lly deleted and no data is overwritten until you press the F8 key to save your changes or press Esc and select Yes when asked if you want to save 5 Press F8 to save your changes or press Esc and then...

Страница 113: ...steps below 1 Make sure no I Os are being issued to the unit you want to remove For example make sure you are not copying files to the unit and make sure that there are no applications with open file...

Страница 114: ...d and want to reuse the drives and unit on the current controller click Rescan Controller Removing a Unit Through 3BM Note Even though removing a unit is supported in 3BM you can also simply power dow...

Страница 115: ...n page 106 and Rescanning the Controller on page 113 Caution If you have a configured RAID unit on an older controller such as an 8506 and you move the drives to a new controller such as 9500 8 you mu...

Страница 116: ...you should not add a drive via 3DM Simply power down to add the applicable drives Refer to the 3ware 9000 Series Serial ATA RAID Controller Installation Guide for more details Warning Physically addi...

Страница 117: ...recognize it as gone Always use the Remove Drive command to remove a drive before unplugging it If you want to remove a unit from your system and reassemble it in another system do not follow these st...

Страница 118: ...r User Guide Figure 44 Removing a Drive in 3DM 3 When 3DM asks you to confirm that you want to remove the drive click OK You can now remove the drive from your system If you removed a drive that was p...

Страница 119: ...tenance page For more information see Adding a Drive through 3DM on page 110 This is useful in variety of circumstances For example if you added new drives to the controller you can make them availabl...

Страница 120: ...ames to more easily identify them A unit can be assigned a name when it is created The name can also be added or changed later To name or rename a unit 1 Make sure the appropriate controller is select...

Страница 121: ...ain your units Checking Unit and Drive Status through 3DM Reviewing Alarms and Errors About Background Tasks Scheduling Background Tasks Rebuilding Units Verifying Units Checking Unit and Drive Status...

Страница 122: ...6 Drilling Down to Check Status Information For details about specific pages with summary and detailed status information see these topics in the 3DM Reference section Controller Summary Page on page...

Страница 123: ...n the 3ware RAID controller requires attention such as when a disk unit becomes degraded and is no longer fault tolerant They also include SMART notifications and informational notification such as wh...

Страница 124: ...link 4 When the Save or Open dialog box appears navigate to where you want to save the log and click OK Viewing SMART Data About a Drive You can view SMART Self Monitoring Analysis and Reporting Techn...

Страница 125: ...drives Foreground initialization can take several hours depending upon the size of the unit After foreground initialization completes you can start the operating system and units will perform at peak...

Страница 126: ...D 5 and RAID 50 Units Regardless of the size all 9000 series RAID 5 and 50 arrays are fully fault tolerant upon creation This is because these configurations use a specialized scheme for writing to th...

Страница 127: ...is required During driver startup a flag is set that indicates that the driver loaded Upon an orderly shutdown the flag is rewritten indicating that there was a clean shutdown During the next system p...

Страница 128: ...a disk drive problem or failure For example if the verification process encounters many error locations it may be an indication of an excessive number of grown defects on the drive This allows you to...

Страница 129: ...a redundant array that is in a redundant state not DEGRADED or REBUILDING then Dynamic Sector Repair automatically rewrites the redundant data to the error location to force the drive to reallocate t...

Страница 130: ...vered from the unclean shutdown For more information about migration see Changing An Existing Configuration on page 98 About Self tests Two self tests can be set to check whether UDMA Mode can be upgr...

Страница 131: ...sks You can set up scheduling windows for when background tasks can occur so that routine maintenance of storage media occurs at times that will be least likely to interfere with peak I O times By cre...

Страница 132: ...Task Duration If a rebuild completes within a scheduled time it will not start over come next schedule time block unless someone degrades the unit and starts another rebuild on the unit in the meanti...

Страница 133: ...ay be times when you want to disable scheduled rebuild migrate or verify tasks so that you can rebuild migrate or verify a unit right away without waiting for the next scheduled time In this case you...

Страница 134: ...re information see Selecting Self tests to be Performed on page 129 Removing a Task Schedule When you first use 3DM daily task schedules are defined each starting at 12 00 am and running for 24 hours...

Страница 135: ...e 3 Scroll to the section of the Scheduling page that shows the task you want to add 4 In the fields at the bottom of the section select the Day Time and Duration for the task 5 Click the Add New Slot...

Страница 136: ...fied and a redundant unit degrades an event notification is generated and the hot spare dynamically replaces the failed drive in the redundant unit without user intervention The rebuild process will a...

Страница 137: ...ECC error on the source disk you can force the rebuild to continue by checking the Overwrite ECC Error policy on the Controller Settings page in 3DM and then running Rebuild again This will cause unc...

Страница 138: ...t scheduled time Note If you need to cancel a rebuild you can do so by using the Remove Drive link on the Maintenance page to remove the drive from the unit Rebuilding Units through 3BM When a RAID un...

Страница 139: ...selected the correct unit by selecting OK 5 Press F8 to save your changes and exit 3BM The unit will begin rebuilding after the operating system finishes loading If the rebuild fails and you have no a...

Страница 140: ...hen you start a rebuild from 3BM you cannot cancel from within the 3BM interface however you can cancel a rebuild from within 3DM by using the Remove Drive link on the Maintenance page If you do not w...

Страница 141: ...is logged and the entire unit is initialized For RAID 1 and 10 initialization involves copying the data from the lower port s to the higher port s of the mirror For RAID 5 this involves recalculating...

Страница 142: ...cannot be halted so no Stop Verify link appears Verifying a Unit through 3BM 1 At the main 3BM screen select the unit by highlighting it and pressing Enter An asterisk appears in the left most column...

Страница 143: ...d selecting Verify Unit starts initialization This is because fault tolerant units cannot be verified until after they are initialized If the unit is already in a state of rebuild initialization or ve...

Страница 144: ...Maintaining Units 138 3ware 9000 Series Serial ATA RAID Controller User Guide...

Страница 145: ...see the Controller Summary Page on page 45 Using 3BM see Displaying Advanced Details on page 25 Under Linux you can also type the following command if you have a 2 4 kernel or earlier cat proc scsi 3w...

Страница 146: ...se the driver from the external Linux distribution as it will not include the firmware image due to size limitations and is older than the currently supported driver Instead use the driver from the 3w...

Страница 147: ...indows XP on page 146 When you use the update utility you bypass the device driver screens that you see when you update just the driver through Windows Device Manager Note At the end of this process y...

Страница 148: ...ware Driver Firmware Update dialog box appears it shows available updates for the device driver and for the firmware Figure 52 Update Utility Showing Available Drivers If either your driver or firmwar...

Страница 149: ...t found with the driver files you will see an error message and the 3ware Driver Firmware Update dialog box will show only the Driver as available Figure 54 Error Message When the Firmware Image is Mi...

Страница 150: ...e dialog make any changes to what will be updated and click Continue to install your selections During the update the driver installs on your local drive The firmware will first download and then will...

Страница 151: ...stallation with an unsigned driver click OK 9 If a final message box confirms that the process is complete click OK This message appears if you do not need to restart your computer Using the Update Ut...

Страница 152: ...ropriate 4 Continue with step 6 above in the procedure Updating the 3ware Driver and Firmware Under Windows Updating the 3ware Driver Under Windows XP If you prefer you can update the 3ware driver thr...

Страница 153: ...n the Device Manager tab 7 Open the SCSI and RAID Controllers selection 8 Locate and double click on the applicable 3ware Serial ATA RAID Controller The 3ware Escalade 9000 Series ATA RAID Controller...

Страница 154: ...creen asks whether you want to connect to Windows Update Select No not this time and click Next Figure 58 Windows XP Service Pack 2 Windows Update Query 12 When you reach the Hardware Update Wizard sc...

Страница 155: ...next screen Figure 60 choose Don t search I will choose the driver to install and click Next Figure 60 Search for Driver Screen 14 When the Select the Device Driver screen appears Figure 61 click the...

Страница 156: ...re 62 Install From Disk Dialog Box 16 When the Select the Device Driver dialog box reappears select the appropriate driver Figure 63 and click Next Be sure to select the correct driver name otherwise...

Страница 157: ...oots the first screen of the Hardware Update Wizard appears again informing you that Windows has found new hardware If you are using Windows XP Service Pack 2 the screen asks whether you want to conne...

Страница 158: ...ing Your Controller 152 3ware 9000 Series Serial ATA RAID Controller User Guide 21 When the second Completing the Found New Hardware screen appears click Finish Figure 65 Completing Found New Hardware...

Страница 159: ...xxx ko for 2 6 kernels For Red Hat Uniprocessor cp version 3w 9xxx o lib modules kernel drivers scsi 3w 9xxx o For Red Hat SMP cp version 3w 9xxx smp lib modules kernel drivers scsi 3w 9xxx o For Red...

Страница 160: ...heck the release notes for more details regarding supported operating systems 1 Download and extract the driver as described on page 140 2 Backup any critical data prior to updating the 3ware driver 3...

Страница 161: ...3ware controller Otherwise continue with step 11 The driver is now updated 11 Stop the current driver module if loaded rmmod 3w 9xxx 12 Load the new driver module modprobe 3w 9xxx If the new driver f...

Страница 162: ...ntents of the cache memory for up to 72 hours When power is restored the cached write data is written to the disks Note When the BBU status is not Ready write caching is automatically disabled on all...

Страница 163: ...again after the test completes The whole process usually takes between 8 and 12 hours While running the battery test and until charging is completed write cache is temporarily disabled To test the ba...

Страница 164: ...harging Eventually the battery voltage will say OK again Figure 67 BBU Information Screen While Battery is Testing To test the battery in a BBU in 3BM 1 At the main 3BM screen tab to the BBU button an...

Страница 165: ...compatibility asp Before Contacting Customer Support Three screens in 3DM 2 provide controller version and status information that can be helpful when contacting 3ware Customer Support with questions...

Страница 166: ...ove the black end rail It aligns and secures the 3ware RAID controller in the computer chassis but is not critical for operation Q2 The system doesn t begin booting no BIOS runs when the 3ware RAID co...

Страница 167: ...t creating or deleting a disk array overwrites any existing data on the member drives Reinstall your operating system If you installed your operating system when you installed the 3ware RAID controlle...

Страница 168: ...igure 69 through Figure 73 are screen messages that might appear during installation Figure 69 A Warning for All Software Removal Requests Figure 70 Confirmation of Successful Software Removal Figure...

Страница 169: ...AEN number is the last few digits within the parentheses at the beginning of the message description For example in the string 0x04 0x002B 2B is the AEN number To find additional information about the...

Страница 170: ...N_RBLD_SOURCE_ERROR 02Eh AEN_REPLACE_DRIVE_TOO_SMALL 02Fh AEN_UNIT_NOT_ZEROED 030h AEN_DRIVE_NOT_SUPPORTED 032h AEN_SPARE_INADEQUATE 036h AEN_VERIFY_ERROR 037h AEN_INCOMPATIBLE_SODIMM 038h AEN_NO_SODI...

Страница 171: ...ATURE_BELOW_OPERATING 04Dh AEN_TEMPERATURE_ABOVE_OPERATING 04Eh AEN_LOW_CURRENT_TEST_STARTED 04Fh AEN_CACHE_SYNC_SKIPPED 050h AEN_LOW_CURRENT_TEST_STOPPED 051h AEN_HIGH_CURRENT_TEST_STARTED 052h AEN_H...

Страница 172: ...ad error The default operation of the 3ware RAID controller is to abort a rebuild if an error is encountered If it is desired to continue on error you can set the Continue on Source Error During Rebui...

Страница 173: ...ean shutdowns due to sudden power loss AEN 009h AEN_APORT_TIMEOUT The 3ware RAID controller has a sophisticated recovery mechanism to handle various types of failures of a disk drive One such possible...

Страница 174: ...by this AEN AEN 021h AEN_UDMA_DOWNGRADE The 3ware RAID controller communicates to the ATA disk drives through the Ultra DMA UDMA protocol This protocol ensures data integrity across the ATA cable by...

Страница 175: ...ity features performs diagnostics on its internal RAM devices Once a day a non destructive test is performed on the cache memory Failure of the test indicates a failure of a hardware component on the...

Страница 176: ...d on a very old 3ware product is connected to a newer 3ware RAID controller this AEN is posted and the 3ware RAID controller rejects the drive Please contact 3ware technical support if this event occu...

Страница 177: ...he error was on a source drive of the rebuild Knowing if the error occurred on the source or the destination of the rebuild is useful for troubleshooting AEN 02Eh AEN_REPLACE_DRIVE_TOO_SMALL The 3ware...

Страница 178: ...This AEN will be sent if there is no SODIMM memory connected to the controller In this case the controller is inoperable AEN 039h AEN_COR_SBUF_ECC This AEN will be sent when the controller has detect...

Страница 179: ...B is found the primary DCB is re written to rectify the errors found AEN 043h AEN_BACKUP_DCB_ERROR This AEN will be sent when the controller sees a latent error in the backup Disk Configuration Block...

Страница 180: ...mes not ready and is unable to backup the 3ware RAID controller This indicates that the Battery Backup Unit must be replaced AEN 049h AEN_TEMPERATURE_NORMAL The Battery Backup Unit measures and evalua...

Страница 181: ...e being exceeded AEN 04Eh AEN_LOW_CURRENT_TEST_STARTED This AEN is posted when the Battery Backup Unit starts a battery test The test estimates the battery capacity in hours which is how long the Batt...

Страница 182: ...weeks this AEN will be sent to the host and once every week thereafter AEN 055h AEN_CHARGE_STARTED This AEN is posted when the Battery Backup Unit starts a battery charge cycle AEN 056h AEN_CHARGE_ST...

Страница 183: ...ery Backup Unit periodically evaluates the health of the battery and its ability to backup the 3ware RAID controller in case of a power failure This AEN is posted when the result of the health test is...

Страница 184: ...Troubleshooting Problems and Solutions 178 3ware 9000 Series Serial ATA RAID Controller User Guide...

Страница 185: ...data port to handle asynchronous ATA disk drive interface Array One or more disk drives that appear to the operating system as a single unit Within 3ware software 3BM and 3DM arrays are typically refe...

Страница 186: ...d If you want to remove a unit without deleting the data on it do not delete it instead use the Remove feature in 3DM and then physically remove the drives Destroying Same as deleting a unit Degraded...

Страница 187: ...and power management for EMS enclosure management services Import a unit Attach a set of disk drives with an existing configuration to a controller and make the controller aware of the unit Does not...

Страница 188: ...unit To generate data on a new drive after it is put into service to replace a degraded drive in a fault tolerant unit for example RAID 1 10 5 or 50 Redundancy Duplication of data on another drive or...

Страница 189: ...0 Subunit A logical unit of storage that is part of another unit For example the mirrored pairs RAID 1 in a RAID 10 unit are subunits of the RAID 10 unit UDMA mode UDMA mode is a protocol that support...

Страница 190: ...Glossary 184 3ware 9000 Series Serial ATA RAID Controller User Guide...

Страница 191: ...o communications However there is no guarantee that interference will not occur in a particular installation If this equipment does cause harmful interference to radio or television reception which ca...

Страница 192: ...rmity with the following Common Technical Regulations and or normative documents EN 55022 Limits and methods of measurements of radio interference characteris tics of information technology equipment...

Страница 193: ...purchase AMCC at no charge and at its option will repair or replace any part of this product which proves defective by reason of improper workmanship or materials Repair parts or replacement products...

Страница 194: ...nty Protection To obtain warranty service during the warranty period call AMCC toll free at 800 945 7273 or 408 523 1145 direct as soon as you have identified a problem with your AMCC 3ware Serial ATA...

Страница 195: ...re upgrading multiple switches simultaneously For specific answers to questions or to give feedback about the product visit our Web site at http www 3ware com support and use our convenient e mail for...

Страница 196: ...Appendix B Warranty Technical Support and Service 190 3ware 9000 Series Serial ATA RAID Controller User Guide...

Страница 197: ...adding a 110 removing a 111 Drive Information page 51 drive status checking 115 enabling remote access 43 errors 117 hot spare 93 incoming port number 72 installing 3DM on Linux 32 installing 3DM on W...

Страница 198: ...s page 3DM 47 controller details 3BM 74 controller details 3DM 73 controller ID number definition 180 controller policies setting in 3BM 76 Controller Settings page 3DM 53 Controller Summary page 3DM...

Страница 199: ...orting 77 L logging in 36 M main screen 3BM 22 main screen 3DM 37 maintaining units 115 136 Maintenance page 3DM 58 media scans 15 media scans verification of non redundant units 122 menus 3DM 38 mess...

Страница 200: ...bout 3DM 57 adding 129 removing 128 turning on and off 126 127 viewing 126 Technical Support 187 troubleshooting 159 3DM 160 ATA cables 160 BIOS 160 Disk Array Configuration Utility 160 hardware insta...

Страница 201: ...ant units 123 verify unit 3DM 61 verifying definition 183 verifying units 135 viewing 3DM remotely 36 ving 79 volumes in a unit 50 resulting from auto carvings 50 W warnings installation 162 Warranty...

Страница 202: ...196 3ware 9000 Series Serial ATA RAID Controller User Guide...

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