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E-6   

Understanding Drive Arrays

Writer: Rickard   Project: Compaq Smart Array 3200 Controller Reference Guide   Comments: 340862-002

File Name: L-APPE.DOC   Last Saved On: 12/7/98 9:30 AM

COMPAQ CONFIDENTIAL - NEED TO KNOW REQUIRED

Table E-1

RAID Level Characteristics

Distributed Data

Guarding (RAID 5)

Data Guarding

(RAID 4)

Mirroring

(RAID 1)

No Fault Tolerance

(RAID 0)

Usable Disk Space*

67% to 97%

67% to 97%

50%

100%

Disk Space Formula
(n = no. of drives)

(n-1)/n

(n-1)/n

n/2

n

Parity and
Data Redundancy

Parity distributed

over each drive

Dedicated parity drive

Duplicate data

None

Minimum Number
of Drives

3

3

2

1

Comments

Tolerant of single

drive failures. Higher

performance than

RAID 4. Uses the

least amount of

storage capacity for

fault tolerance.

Tolerant of single

drive failures. Like

RAID 5, RAID 4 uses

the least amount of

storage capacity for

fault tolerance.

Tolerant of multiple,

simultaneous drive

failures. Higher

performance than

RAID 4 or 5. RAID 1

uses the most

storage capacity for

fault tolerance, and

requires an even

number of drives.

Best performance,

but data is lost if any

drive in the logical

drive fails. RAID 0

uses no storage

space for fault

tolerance.

*A

ll drives are the same capacity.

If you require a fault-tolerant system for critical data, Compaq recommends
using RAID 5 for maximum storage space efficiency or RAID 1 if I/O
performance is more important.

If you store non-critical data, and space and performance are both important,
RAID 0 offers the best of both parameters. However, RAID 0 has no data
protection and you will have to rely on backups in the event of hardware failure.

Содержание Presario 3200 Series

Страница 1: ...Smart Array 3200 Controller Reference Guide Second Edition January 1999 Part Number 340862 002 Compaq Computer Corporation...

Страница 2: ...t from Compaq Computer Corporation 1998 Compaq Computer Corporation All rights reserved Printed in the U S A The software described in this guide is furnished under a license agreement or nondisclosur...

Страница 3: ...ing the Array Accelerator 1 4 Wide Ultra2 SCSI Technology 1 5 Wide Ultra2 SCSI Benefits 1 5 Wide Ultra2 SCSI Compatibility 1 5 The Array Configuration Utility 1 6 Working with Drive Arrays 1 6 Using F...

Страница 4: ...ility 4 3 Configuring the Controller 4 4 Controller Order 4 4 Online Recovery Server Status 4 5 Configuration Steps 4 6 Chapter 5 Running the Array Configuration Utility Write Caching 5 1 Before You B...

Страница 5: ...ents 6 2 Materials Needed 6 2 Creating Novell SSD Diskettes 6 3 Additional Information 6 4 Updating the Compaq Insight Manager Agents 6 6 Software Drive Mirroring with NetWare 6 6 Handling Disk Drive...

Страница 6: ...nager Agents 6 40 Banyan VINES 6 x 7 x and 8 x 6 40 Materials Needed 6 40 Creating the Peripheral Adapter Support Software Diskettes 6 41 Additional Information 6 41 Installing the Driver 6 41 Appendi...

Страница 7: ...rt Array 3200 Controller Option Kit Contents D 2 SCSI Termination D 3 SCSI IDs D 3 SCSI Cabling D 4 SCSI Cable Connectors D 5 Migrating to from Other Controllers D 6 Appendix E Understanding Drive Arr...

Страница 8: ...Data Recovery E 24 Hot Pluggable Drives E 25 Controller Duplexing E 27 Software Based Drive Mirroring E 28 Appendix F Replacing the Array Accelerator Removing the Array Accelerator F 2 Installing the...

Страница 9: ...riter Rickard Project Compaq Smart Array 3200 Controller Reference Guide Comments 340862 002 File Name A FRNT DOC Last Saved On 12 7 98 1 56 PM COMPAQ CONFIDENTIAL NEED TO KNOW REQUIRED Appendix I POS...

Страница 10: ...ntions to distinguish elements of text Keys Keys appear in boldface A plus sign between two keys indicates that they should be pressed simultaneously USER INPUT User input appears in a different typef...

Страница 11: ...cons may be located on equipment in areas where hazardous conditions may exist Any surface or area of the equipment marked with these symbols indicates the presence of electrical shock hazards Enclose...

Страница 12: ...elp If you have a problem and have exhausted the information in this guide you can get further information and other help in the following locations Compaq Website The Compaq website has information o...

Страница 13: ...roved data transfer rates and is backward compatible with other SCSI devices It also includes optional daughterboards for customizing combinations of internal and external connections two external two...

Страница 14: ...lled RAID 10 1 4 and 5 support Large cache 64 MB ECC protected battery backed removable daughterboard read ahead and posted write cache array accelerator Adjustable cache read write ratio Tagged comma...

Страница 15: ...nd data lines and includes a parity signal It provides a high speed up to 132 MB sec path between the system board and the controller The Smart Array 3200 Controller is a PCI Bus Master device and con...

Страница 16: ...er is not operable without the array accelerator board attached The array accelerator s ECC memory provides a high level of data integrity ECC memory detects and corrects hard and soft memory errors w...

Страница 17: ...3200 Controller board Refer to Appendix F Replacing the Array Accelerator for specific information Wide Ultra2 SCSI Technology The Smart Array 3200 Controller uses Wide Ultra2 SCSI technology for impr...

Страница 18: ...ration Allows online RAID level migration between any two RAID levels Allows online logical drive capacity extension Enables easy online capacity expansion Sets drive rebuild and capacity expansion pr...

Страница 19: ...online spare to any RAID 1 RAID 0 1 RAID 4 or RAID 5 configuration Refer to Appendix E for more information on fault tolerance methods Refer to Chapter 5 for information on using the Array Configurat...

Страница 20: ...e This combination allows higher throughput in many network application environments than does Wide Ultra SCSI 3 Wide Ultra SCSI 3 Wide Ultra SCSI 3 technology provides SCSI data transfer rates of up...

Страница 21: ...e installing or replacing drives in your Compaq server keep in mind that Each Smart Array 3200 Controller has two independent SCSI channels each of which supports up to 15 drives per SCSI bus Drives m...

Страница 22: ...II Hot Plug 9 1 GB Wide Ultra 10k II Non Hot Plug 9 1 GB Wide Ultra Hot Plug 9 1 GB Wide Ultra Non Hot Plug 4 3 GB Wide Ultra2 10k II Hot Plug 4 3 GB Wide Ultra2 10k II Non Hot Plug 4 3 GB Wide Ultra2...

Страница 23: ...torage capacity factors in a server include The number of option slots used for other purposes The number of available internal drive bays The number of logical drives or drive controllers allowed by...

Страница 24: ...pated during a normal capacity expansion it is a good idea to back up all data in the array you will be expanding or extending This backup may also be used to return to the original configuration if n...

Страница 25: ...new Fault Tolerance RAID Level Your system automatically redistributes the data according to the new Fault Tolerance RAID Level 4 Restart the System or Restore data 5 Copy the backed up data into the...

Страница 26: ...the following conditions must be met System power is OFF includes all system components The move will not result in more than 30 physical drives or 15 physical drives per SCSI bus and or 32 logical dr...

Страница 27: ...also refers to consolidating arrays that exist on more than one controller onto a single controller To move an array to another controller the conditions listed previously for moving drives and the fo...

Страница 28: ...e array from Controller 2 and adding it to Controller 1 Controller 1 now has two arrays drive IDs 0 1 2 and 3 constitute Array A and drive IDs 4 and 5 constitute Array B Controller 2 has no arrays NOT...

Страница 29: ...If a 1785 Not Configured POST message is displayed turn the system off immediately to avoid data loss and return the drives to their original locations NOTE If you move arrays from a dual channel cont...

Страница 30: ...t of controller failure Figure 2 4 shows the consolidated configuration that includes Array A with drive IDs 0 through 3 and Array B with drive IDs 4 and 5 Moving Array B back to Controller 2 creates...

Страница 31: ...s To restore an array to its original controller make sure the conditions for moving drives are met Then IMPORTANT These steps must be followed AS DESCRIBED Any deviation or mistake could result in th...

Страница 32: ...sure that the server can use all the capabilities of the Smart Array 3200 Controller Options ROMPaq Updates the onboard ROM on all Compaq options that support programming Use Options ROMPaq when new v...

Страница 33: ...workstation with a bootable CD ROM drive This can be the system in which you are installing the Smart Array 3200 Controller Creating Diskettes To create ROMPaq diskettes 1 Boot the server from the Com...

Страница 34: ...he latest System ROMPaq on all servers when installing a new Smart Array 3200 Controller If you purchased your server with Smart Array 3200 Controller already installed you do not need to run System R...

Страница 35: ...ress Enter 6 Review the information on the Caution screen Device to reprogram your server Current ROM revision date of existing ROM version Selected ROM revision date of ROM version to be installed Pr...

Страница 36: ...new versions are released The Smart Array 3200 Controller firmware version on the Compaq SmartStart and Support Software CD has already been installed you do not need to update immediately However if...

Страница 37: ...Current ROM revision COMPAQ Smart Array 3200 Controller x xx Select Firmware Images COMPAQ Smart Array 3200 Controller y yy Press Enter 6 Review the information on the Caution screen Device to reprogr...

Страница 38: ...nter if you want to reprogram another Compaq option Repeat steps 4 through 7 9 If you are finished with reprogramming options press Esc to exit the ROMPaq utility 10 Remove the Options ROMPaq diskette...

Страница 39: ...memory port addresses and interrupts IRQs Manages the installation of memory processor upgrades and mass storage devices such as hard drives tape drives and diskette drives Sets and stores power on fe...

Страница 40: ...to Running the System Configuration Utility System Configuration Diskettes Materials Needed To create Compaq System Configuration Utility diskettes you will need Compaq SmartStart and Support Software...

Страница 41: ...ollers were detected in option slots and a recommendation to run the System Configuration Utility 4 Press F1 to resume booting if prompted 5 If you are using the Compaq SmartStart and Support Software...

Страница 42: ...number First The primary disk controller that contains the boot disk The first disk drive on this controller is the one the server will boot from Second The second disk controller Fifteenth The fiftee...

Страница 43: ...drive letter assignments for all drives on the system To avoid changing drive letter assignments place the new controller at the end of the controller order IMPORTANT Do not create a primary partitio...

Страница 44: ...y Server Status Press Enter to select the parameter to edit 2 Review and edit the Controller Characteristics of all Smart Array 3200 Controllers shown in the View or Edit Details screen 3 Press F10 wh...

Страница 45: ...Array Configuration Utility is compatible with the operating systems discussed in Chapter 6 It is an offline utility except in servers running Windows NT An online utility for NetWare users is also d...

Страница 46: ...plies Failure to use this feature with these precautions will cause data loss This chapter includes the following sections Before You Begin Starting the Compaq Array Configuration Utility Configuratio...

Страница 47: ...n utility either online or by using the SmartStart and Support Software CD Accessing Online If the server you are configuring is running Windows NT you can install and run the configuration utility on...

Страница 48: ...uides you through the configuration process The configuration wizard recognizes the following conditions Unconfigured controller When the Array Configuration Utility detects an unconfigured controller...

Страница 49: ...your array manually Create a New Array Procedure Creating a New Array There are three general steps for creating a new array Step 1 Choose the Smart Array 3200 controller for the array Step 2 Group ph...

Страница 50: ...y Configuration Utility Main Configuration Screen select the Controller Selection box You can also select Controller Select from the menu bar 2 Select the Smart Array 3200 Controller Figure 5 1 Contro...

Страница 51: ...rray screen NOTE Always group physical drives of the same size If you mix drive sizes the capacity of the larger drives is wasted 2 Select the three drives you want to make up the array from the drive...

Страница 52: ...COMPAQ CONFIDENTIAL NEED TO KNOW REQUIRED 3 Select the drive at Port 1 SCSI ID 3 and click the Assign Spare to Array button The right side of the Create Array screen should look similar to the follow...

Страница 53: ...uration View area should look similar to Figure 5 6 Figure 5 6 Example Array Logical Configuration View with one Array 5 Select the controller then click the Create Array button to create Array B 6 As...

Страница 54: ...ze and array accelerator 1 Select Array A or the Unused Space icon under Array A in the Logical Configuration View 2 Click the Create Logical Drive button A screen similar to the following figure is d...

Страница 55: ...pacity available To create a single logical drive across this array accept the default values See the section titled Create Logical Drive Screen for a detailed description 7 Click the Done button 8 Cl...

Страница 56: ...lows the addition of a new physical drive s to the array When you run the Array Configuration Utility the program checks the drive hardware and configuration If the Array Configuration Utility discove...

Страница 57: ...figuration similar to the previous example except that the fourth 4 3 GB drive was added later where Array A does not have a spare Expand Array A to include the fourth drive This scenario is represent...

Страница 58: ...ipe size and size for logical drive 2 8 Click the Done button twice to return to the main screen 9 At the main screen select Controller Save Configuration from the menu bar This saves the new settings...

Страница 59: ...NEED TO KNOW REQUIRED Capacity Extension You can increase the size of any logical drive without data loss when the logical drive is on an array with free space Procedure Extending Array Capacity To by...

Страница 60: ...y of a logical drive 1 Access the Extend Logical Drive screen a From the Main Configuration screen click the logical drive b Click the Drive menu c Click Extend Logical Drive button The Extend Logical...

Страница 61: ...Reconfigure a currently configured logical drive to a new fault tolerance RAID level Move an existing logical drive s stripe size to a new stripe Both can be done online without causing any data loss...

Страница 62: ...e Migration To migrate to a different RAID level or stripe size 1 Select a logical drive from the Logical Configuration View 2 Select the Drive menu 3 Click the Migrate RAID Stripe Size option button...

Страница 63: ...TIAL NEED TO KNOW REQUIRED Array Configuration Utility Screens Compaq Array Configuration Utility Screen The main configuration screen is the first screen displayed after the configuration wizard is f...

Страница 64: ...Use to delete modify or expand extend the capacity of an array and to create logical drives and array information Drive Use to delete or change logical drives assign physical drives to arrays and crea...

Страница 65: ...e arrays logical drives and physical drives configured for that controller are listed Use the Drive View options located below the Configuration View box to select the Physical or Logical view Figure...

Страница 66: ...n in Figure 5 16 is located at the bottom left of the screen Use the Drive View box to select a logical or physical representation in the View Configuration list box Figure 5 16 Drive View options and...

Страница 67: ...tons The Array box is located on the right side of the screen below the Controller box The Modify Expand and Create Logical Drive buttons become active after you select an array in the View Configurat...

Страница 68: ...ount of time the controller spends rebuilding data after a failed drive has been replaced Select High if rebuilding data should take precedence over handling requests from the operating system Select...

Страница 69: ...To create an array select the drive or drives to be part of the array then press the Assign Drive s to Array top button You can also select drives and drag them to the array To assign a spare select t...

Страница 70: ...periencing a drive failure increases with the number of drives in an array Compaq recommends the number of drives in an array be limited to 15 Figure 5 22 Create Logical Drive screen The Logical Drive...

Страница 71: ...size of an array by adding physical drives and growing an existing logical drive without adding more logical drives To extend the capacity of an existing logical drive offline Back up all data Reconfi...

Страница 72: ...figurations To change the stripe size on an existing configuration select Modify Logical Drive Use Modify Expand Array if physical drives will be added at the same time stripe size is changed See Tabl...

Страница 73: ...tly configured logical drive to a new fault tolerance RAID level or a new stripe size Error and Warning Messages When you start the Array Configuration Utility the software checks each controller to d...

Страница 74: ...atus of drives attached to the Smart Array 3200 Controller It indicates drive failure expansion or waiting for expansion or rebuild queued Before loading CPQONLIN NLM you must load the appropriate dev...

Страница 75: ...one array at a time To custom configure an array make selections from the Main Configuration View screen Highlight the controller array or logical drive you want to configure Make a selection from th...

Страница 76: ...ld occurs after a physical drive fails and is replaced or when a physical drive fails in an array that has an online spare Only logical drives configured for fault tolerance RAID 1 RAID 4 or RAID 5 on...

Страница 77: ...ical drives Some tips for expanding are Perform the expand process during periods of low server use If you must expand during peak periods the Array Configuration Utility for NetWare allows you to set...

Страница 78: ...ive has not been replaced Replace drive as soon as possible Ready for Recovery The logical drives are queued for recovery This status is displayed when another logical drive is already rebuilding or e...

Страница 79: ...1 Determine which physical drive failed On hot pluggable drives in a ProLiant server or storage system this is indicated by an amber Drive Failure LED on each drive tray 2 If the unit containing the...

Страница 80: ...amount of RAM required to mount the volume while Block Sub Allocation allows NetWare to allocate disk space more efficiently Use of linear memory provides the best performance in the NetWare environme...

Страница 81: ...during a new NetWare installation use the Alt Esc key sequence to change to the console prompt and load CLIB Load clib nlm 5 Load CPQDAOPT NLM from Novell SSD Disk 4 Load A drv_arry cpqdaopt 6 CPQDAO...

Страница 82: ...r future optimizations In the following example F is mapped to the server s SYSTEM partition From a client logged into the server type copy A drv_arry cpqdaopt nlm f system cpqdaopt nlm If you have al...

Страница 83: ...ller with these operating systems If you are setting up a new system Compaq recommends using SmartStart to install both the operating system software and the device drivers for the Smart Array 3200 Co...

Страница 84: ...kettes SSD Skip to the section Using the Array Configuration Utility for NetWare Installation Requirements Before installing device drivers install and load the latest support pack or operating system...

Страница 85: ...nline help file on Disk 2 of the Novell SSD To create the diskettes 1 Boot the server from the Compaq SmartStart and Support Software CD 2 From the Compaq System Utilities screen select Create Support...

Страница 86: ...ovell SSD SmartStart CD contains the latest information about using Compaq options in a NetWare environment including the driver installation procedure Locate and read this procedure If the procedure...

Страница 87: ...duct Not Listed from the Other Installation Actions menu 4 If you are installing from Novell SSD diskettes make sure that Disk 1 INSTALL DOS CD SUPPORT ADVANCED SERVER SUPPORT is in the appropriate dr...

Страница 88: ...ained from your local Compaq Reseller or authorized Compaq Service Provider Refer to the documentation included with Compaq Insight Manager for the correct procedure for updating agents Installation o...

Страница 89: ...d sectors and to remap data to a new location on the media This feature enhances the reliability and availability of your data Compaq also recommends that you use good back up procedures in case of ca...

Страница 90: ...to the failed device execute the following command from the console REMOVE DOS Recovering a DOS Partition without Hardware Fault Tolerance If your server is not configured for hardware fault tolerance...

Страница 91: ...e partition bootable For example FORMAT C s 9 If you have a backup of your DOS partition use it to create the previous image Otherwise use your NetWare server diskettes and copy the following files to...

Страница 92: ...server console and also in the server error log file that can be viewed using the SYSCON utility 3 12 or the NWADMIN utility 4 x You will use this information later to create a valid partition 2 Load...

Страница 93: ...n is chosen Other versions of NetWare require manual activation of the device by changing the operating status to active If reactivation of the failed logical drive is successful the driver sends a co...

Страница 94: ...A2 D1 0 Compaq SMART 2 Slot 8 Disk 2 NFT Select Delete Partition INSTALL may display several error messages Since you will delete this partition do not update any Volume Definition Table information C...

Страница 95: ...tWare This information will be used later to create a valid partition For hot pluggable drives in a ProLiant server or storage system record the location drive bay of the failed physical drive The fai...

Страница 96: ...The driver should reactivate the failed logical drive The driver sends a console alert if reactivation of the failed logical drive is successful In the INSTALL NLM Available Disk Drives menu select t...

Страница 97: ...not need to make the Support Software Diskette SSD utility diskettes Skip this section NOTE Windows NT supports using the Compaq Array Configuration Utility to reconfigure your drive arrays online How...

Страница 98: ...oller option kit To access the driver create the Compaq SSD for Windows NT diskettes These diskettes contain the latest operating system software drivers and support documentation for all Compaq equip...

Страница 99: ...ver running Windows NT or a PC running Windows Perform the following steps 1 Insert the Windows NT SSD diskettes one at a time in the diskette drive 2 Open a command prompt make A the current drive an...

Страница 100: ...T Setup program installation method Compaq SSD for Windows NT Setup Program Installation Method The Compaq SSD for Windows NT Setup program installation method uses device drivers installed with the S...

Страница 101: ...the driver 6 After highlighting all the drivers you want to install select Continue Setup installs the selected drivers or prompts you for more information to install remove or update a driver 7 Sele...

Страница 102: ...Controller Driver During Windows NT Installation This section describes how to install the driver using the Compaq SSD for Windows NT utility during the initial installation of Windows NT 3 51 or 4 0...

Страница 103: ...mpted The Setup program will copy the drivers to the system 10 Finish installing Windows NT Installing the Smart Array 3200 Controller Driver After Windows NT Installation Execute the Setup program in...

Страница 104: ...should appear in the list of installed SCSI controllers Select Close 12 Exit the program 13 Remove the Compaq SSD for Windows NT diskette from the drive 14 Shut down Windows NT 15 Reboot the server to...

Страница 105: ...tabbed sections to install update or remove other software components 8 Remove the Windows NT SSD diskette 9 Shut down Windows NT 10 Reboot the system to load the driver Removing the Smart Array 3200...

Страница 106: ...the Mass Storage tabbed panel on the Custom Installation screen 6 Select Compaq Drive Array and click the Remove button After the driver is removed from your system Setup returns to the Custom Instal...

Страница 107: ...installation you must manually update the Insight Agents The correct agents can be obtained from your local Compaq Reseller or authorized Compaq Service Provider Refer to the documentation included w...

Страница 108: ...you will need Compaq SmartStart and Support Software CD supplied in the Smart Array 3200 Controller option kit Blank diskettes Access to a server or workstation with a bootable CD ROM drive This may...

Страница 109: ...tion Notes for Compaq Servers in the diskette drive of a server or PC capable of reading a DOS text file 2 Use a text editor or other DOS utility to read the INSTALL TXT file on the diskette 3 Follow...

Страница 110: ...e Provider Refer to the documentation included with Compaq Insight Manager for the correct procedure for updating agents Installation of the Smart Array 3200 Controller is now complete Reboot the serv...

Страница 111: ...g the EFS Diskettes To create the Compaq EFS for SCO UnixWare diskettes 1 Boot the server from the Compaq SmartStart and Support Software CD 2 From the Compaq System Utilities screen select Create Sup...

Страница 112: ...agents can be obtained from your local Compaq Reseller or authorized Compaq Service Provider Refer to the documentation included with Compaq Insight Manager for the correct procedure for updating agen...

Страница 113: ...ray 3200 Controller option kit To access the driver create the OS 2 SSD diskettes These diskettes contain the latest operating system software drivers and documentation for all Compaq equipment suppor...

Страница 114: ...are on the OS 2 SSD diskettes Locate and read this procedure If the procedure differs from that which is shown here follow the one on the SSD diskettes To view or print the Readme files you will need...

Страница 115: ...ist of drivers Click OK to continue 5 The CPQARRAY ADD driver file will be copied to the x os2 directory where x is the boot drive The CONFIG SYS file will be updated to load this driver first on boot...

Страница 116: ...ler is installed does not affect the loading order only the order shown in CONFIG SYS affects the order Each ADD driver developed by Compaq places its controllers in ascending order based on the contr...

Страница 117: ...r than 2 GB 2048 MB in size It is recommended that you do not exceed 8 GB for an HPFS boot partition Exceeding this size makes it possible for the OS 2 system files to end up larger than 8 GB on the d...

Страница 118: ...nt when booting from a Smart Array 3200 Controller the Compaq IAES is not a bootable device If a Smart Array 3200 Controller is the primary disk controller edit the CONFIG SYS file and make sure the B...

Страница 119: ...performance under heavy disk use When you increase this parameter the CPQARRAY ADD driver will use more memory BASEDEV CPQARRAY ADD PERF memory blocks memory blocks is number in the range of 3 to 9 t...

Страница 120: ...d to identify a controller The index is based on 0 for the lowest controller order number associated with the adapter controlled by this ADD The index increases by one for each controller in the syste...

Страница 121: ...adapter Use this parameter to enable another driver to control a specific adapter IMPORTANT Do not ignore the primary controller or boot controller The system will not boot IMPORTANT The driver must...

Страница 122: ...nsight Agents manually The correct agents can be obtained from your local Compaq Reseller or authorized Compaq Service Provider Refer to the documentation included with Compaq Insight Manager for the...

Страница 123: ...m the Compaq SmartStart and Support Software CD 2 From the Compaq System Utilities screen select Create Support Software 3 From the Diskette Builder screen select Create Support Software Diskettes fro...

Страница 124: ...n a residential environment i e personal computers The FCC requires devices in both classes to bear a label indicating the interference potential of the device as well as additional operating instruct...

Страница 125: ...ision reception which can be determined by turning the equipment off and on the user is encouraged to try to correct the interference by one or more of the following measures Reorient or relocate the...

Страница 126: ...he product Modifications The FCC requires the user to be notified that any changes or modifications made to this device that are not expressly approved by Compaq Computer Corporation may void the user...

Страница 127: ...omplies with Part 15 of the FCC Rules Operation is subject to the following two conditions 1 this device may not cause harmful interference and 2 this device must accept any interference received incl...

Страница 128: ...se Notice Taiwanese Notice Laser Devices All Compaq systems equipped with a laser device comply with safety standards including International Electrotechnical Commission IEC 825 With specific regard t...

Страница 129: ...icians to repair the laser device Compliance with CDRH Regulations The Center for Devices and Radiological Health CDRH of the U S Food and Drug Administration implemented regulations for laser product...

Страница 130: ...s 340862 002 File Name H APPA DOC Last Saved On 12 7 98 1 34 PM COMPAQ CONFIDENTIAL NEED TO KNOW REQUIRED Laser Information Laser Type Semiconductor GaAIAs Wave Length 780 nm 35 nm Divergence Angle 53...

Страница 131: ...acement or proper disposal contact your Compaq Authorized Reseller or your Authorized Service Provider WARNING Your computer contains an internal Lithium Manganese Dioxide or a Vanadium Pentoxide or a...

Страница 132: ...ards or other static sensitive devices This type of damage may reduce the life expectancy of the device Preventing Electrostatic Damage To prevent electrostatic damage observe the following precaution...

Страница 133: ...are flexible straps with a minimum of 1 mega ohm 10 percent resistance in the ground cords Use heel straps toe straps or bootstraps at standing workstations Wear the straps on both feet when standing...

Страница 134: ...ength 13 75 in 34 9 cm Thickness including Array Accelerator 0 60 in 1 5 cm Total Weight including Array Accelerator N A N A Temperature Range Operating 50 to 95 F 10 to 35 C Shipping 22 to 140 F 30 t...

Страница 135: ...ify the pin assignments of the 68 pin internal and external Wide SCSI Connectors formally called Wide Ultra SCSI Connectors 1 34 35 68 EXTSCSI AI A 6 EPS Figure C 1 Wide SCSI Connector Table C 2 68 Pi...

Страница 136: ...n Assignments continued Pin Signal Pin Signal 13 Ground 47 DB7 14 Ground 48 DB Parity 15 Ground 49 Ground 16 Ground 50 Ground 17 TERMPWR 51 TERMPWR 18 TERMPWR 52 TERMPWR 19 N C 53 Int_Out 20 Ground 54...

Страница 137: ...Comments 340862 002 File Name K APPD DOC Last Saved On 12 7 98 1 37 PM COMPAQ CONFIDENTIAL NEED TO KNOW REQUIRED Appendix D Things You Should Know This appendix covers general information for the foll...

Страница 138: ...ontents 5 1 2 3 6 4 Figure D 1 Smart Array 3200 Controller Option Kit contents Table D 1 Option Kit Contents 1 Smart Array 3200 Controller Option Kit PN 340862 001 2 Dual connector daughterboard 3 Sin...

Страница 139: ...I devices must also provide termination for the SCSI bus This is supplied in Compaq external storage systems such as the ProLiant Storage System or SCSI Storage Expander Therefore individual SCSI driv...

Страница 140: ...that connect your Smart Array 3200 Controller option board to SCSI drives in any Compaq server or external SCSI product can be found In the Smart Array 3200 Controller Installation Guide At www compaq...

Страница 141: ...ations of Compaq servers refer to Figure D 2 Keep in mind these characteristics of SCSI cables External SCSI cables have a round wire with securable connectors Internal SCSI cables have a flat ribbon...

Страница 142: ...ion Table D 2 Migrating to from Other Controllers TO SMART 1 SMART 2 E SMART 2 P SMART 2SL SMART 2DH 3100ES and 3200 FROM SMART 1 X X X X X X SMART 2 E BU Restore X X X X X SMART 2 P BU Restore X X X...

Страница 143: ...Array A drive array is a collection of hard disk drives or physical drives that are grouped together to create an array of physical drives An array is made up of one or more subsets called logical dri...

Страница 144: ...logical drive as illustrated in Figure E 2 Daz 9 18 EPS Physical Drive 1 Physical Drive 2 Physical Drive 3 Logical Drive 1 Drive Array Figure E 2 Drive array with one logical drive Figure E 3 illustra...

Страница 145: ...Drive 6 Drive Array 2 Figure E 4 Two drive arrays with six physical drives Drive Arrays Important drive array characteristics of the Smart Array 3200 Controller include A single array cannot span mor...

Страница 146: ...hods can be used to protect your data against hardware failures An array can consist of several logical drives each spanning all physical drives in the array It is important to note that the part of a...

Страница 147: ...ods assigning online spares and rebuilding data Fault Tolerance RAID Options During configuration you will make RAID Redundant Arrays of Independent Disks level choices RAID is the term used for an ar...

Страница 148: ...torage capacity for fault tolerance Tolerant of single drive failures Like RAID 5 RAID 4 uses the least amount of storage capacity for fault tolerance Tolerant of multiple simultaneous drive failures...

Страница 149: ...erating with a slightly reduced performance until you replace the failed drive Distributed data guarding requires an array with a minimum of three physical drives and allows a maximum of 30 drives The...

Страница 150: ...rive Data guarding requires a minimum of three drives two data drives and one parity drive in an array and allows a maximum of 30 drives 29 data drives and one parity drive For example in an array con...

Страница 151: ...data on a pair of disk drives Therefore RAID 1 is the most expensive fault tolerance method because 50 percent of the drive capacity is used to store the redundant data RAID 1 always requires an even...

Страница 152: ...o an array containing a RAID 0 logical drive Online Spare During configuration consider assigning an online spare to further improve your system s fault tolerance An online spare sometimes called a ho...

Страница 153: ...ormance enhancement features that are discussed in this section Distributing Data and Data Striping Distributing data makes it possible to access data concurrently from multiple drives in an array Thi...

Страница 154: ...Controller distributes the data so that the first 32 sectors of data are on the first drive in the array The Smart Array 3200 Controller continues distributing the next 32 sectors on the second drive...

Страница 155: ...Default KB Default Sectors Valid Stripe Sizes Sectors RAID 0 128 256 16 32 64 128 256 512 RAID 1 128 256 16 32 64 128 256 512 RAID 4 16 32 16 32 64 128 RAID 5 16 32 16 32 64 128 Default RAID 4 and 5 d...

Страница 156: ...after the array was reconfigured Array Accelerator By serving as a posted write cache and read ahead cache the Smart Array 3200 Controller Array Accelerator dramatically improves the performance of Re...

Страница 157: ...rom one Smart Array 3200 Controller and installed on another If there is any data in the Array Accelerator that has not been written to the hard drive it can be transferred to another Smart Array 3200...

Страница 158: ...instate power within approximately four days or the data stored in the memory will be lost This depends on the present condition of the Array Accelerator batteries IMPORTANT It is possible for the bat...

Страница 159: ...uest Figure E 9 Concurrent request servicing handles several I O requests Optimized Request Management Optimized Request Management also known as elevator trend sorting is another performance enhancem...

Страница 160: ...ding physical drives and creating additional logical drives Capacity extension refers to increasing the size of an array by adding physical drives and increasing an existing logical drive without addi...

Страница 161: ...drives The extended logical drive is writing the larger drive array When logical drives are added both logical drives are then included in the drive array with expanded storage capacity See Figure E...

Страница 162: ...y than the original drive Now your array will resemble Figure D 11 using the same shading scheme to represent the logical drives It is not necessary for all logical drives in an array to be the same s...

Страница 163: ...er applications Hot plug drives are required for online storage changes because non hot plug drives require that the server be powered down to add or remove the drive All ProLiant servers and storage...

Страница 164: ...er fault management and data reliability features including Auto reliability monitoring Dynamic sector repairing Drive parameter tracking Drive failure alert features Interim data recovery Automatic d...

Страница 165: ...l operation or during auto reliability monitoring Drive Parameter Tracking Drive parameter tracking monitors more than 15 drive operational parameters and functional tests This includes parameters suc...

Страница 166: ...ery After you replace a failed drive automatic data recovery reconstructs the data and places it on the replaced drive This enables a rapid recovery to full operating performance without interrupting...

Страница 167: ...ProLiant Storage System and the Compaq ProLiant server and operates independently of the operating system CAUTION Do not turn off the Compaq ProLiant Storage System or the Compaq server when removing...

Страница 168: ...Last Saved On 12 7 98 9 30 AM COMPAQ CONFIDENTIAL NEED TO KNOW REQUIRED OK to remove failed drive Drive Indicators DO NOT remove drive DO NOT remove drive DO NOT remove drive DO NOT remove drive DAZ9...

Страница 169: ...all requests Controller duplexing is not the same as duplexing the SCSI buses on a single Smart Array 3200 Controller Controller duplexing is a function of the operating system and takes the place of...

Страница 170: ...mirrored pair will also fail You will not be able to retrieve your data Because software based drive mirroring is a function of the operating system refer to the documentation included with your opera...

Страница 171: ...0 Controller is not operable without the Array Accelerator The Smart Array 3200 Controller Array Accelerator has several unique features It accelerates data storage by temporarily caching the data at...

Страница 172: ...ll through the controller board 2 Carefully pull the Array Accelerator daughterboard away 2 from the Smart Array 3200 Controller board unplugging the signal connectors 1 2 Figure F 1 Removing Array Ac...

Страница 173: ...t Array 3200 Controller 1 Be sure the connectors are fully mated by squeezing the boards together at the connector side 2 Align the plastic standoff on the Array Accelerator board with the slot in the...

Страница 174: ...al reconfiguration procedure is required to move the drives and data back to the SMART or SMART 2 Controller IMPORTANT The upgrade procedure described below applies only to moving drives from SMART or...

Страница 175: ...e SMART Controller has a 100 pin external connector on the mounting bracket that connects to the Y cable that separates into two 50 pin Fast SCSI 2 connectors Port 1 and Port 2 These port numbers shou...

Страница 176: ...ntroller has two Very High Density Connector Interface VHDCI connectors on the mounting bracket for Ports 1 and 2 Optional daughterboards included in the Smart Array 3200 Controller option kit provide...

Страница 177: ...ProLiant 1500 ProLiant 4500 or ProLiant 5000 Port 1 OR 68 Pin 68 Pin Port 1 68 Pin 50 Pin External Wide to Standard SCSI Cable Required for Connection to Standard SCSI ProLiant Storage Systems Includ...

Страница 178: ...68 Pin OR Internal 68 pin ribbon cable added for internal wide drives in ProSignia and ProLiant servers 68 to 50 pin adapter required for non hot plug Fast SCSI hard drives 199618 001 OR Figure G 2 C...

Страница 179: ...ption kit to an internal connector on the optional daughterboard to use your existing 50 pin internal ribbon cable If you are connecting to a Fast SCSI 2 external storage system use a VHDCI to 50 pin...

Страница 180: ...art Array 3200 Controller and allows you to change parameters such as controller order and interrupt number if needed You will not see logical drive information with this utility since Smart Array 320...

Страница 181: ...failure of drives in a mirrored configuration that are not mirrored to one another Recognizing a Drive Failure A drive failure can be recognized in one of several ways Amber LED illuminates on failed...

Страница 182: ...ve failures If any physical drive in the array is failed the condition of all non fault tolerant logical drives in the same array will also be failed because data is striped across all drives in the a...

Страница 183: ...and storage system power are both ON Hot pluggable drives can also be replaced when the power is OFF Remember however to never turn off an external storage system while the host system power is on Thi...

Страница 184: ...artup This indicates that the replacement drive has been detected and that Automatic Data Recovery might need to be started Press F1 to initiate the background Automatic Data Recovery process If Autom...

Страница 185: ...physical drive during the recovery process The background Auto Reliability Monitoring process helps prevent this problem but it cannot do anything about certain issues such as SCSI bus signal integrit...

Страница 186: ...that data loss has likely occurred and any data on the logical drive is suspect Fault tolerance may be compromised due to non drive problems such as a faulty cable faulty storage system power supply...

Страница 187: ...in a Compaq ProLiant Storage System attached to the external Port 2 connector Table I 1 POST Error Messages Code Meaning Recommended Action 1702 SCSI Cable Error Detected System Halted This message i...

Страница 188: ...Interface Board and move external SCSI cable to Port 2 with system power OFF 4 Please turn system power OFF and move external SCSI cable to Port 2 5 Please detach or replace Dual Connector Internal SC...

Страница 189: ...y Accelerator Memory Size Change Detected This message indicates that the array accelerator configuration has been updated automatically due to replacement of the Array Accelerator or controller with...

Страница 190: ...hen Array Accelerator has been reattached 2 Expansion will resume when Array Accelerator has been replaced 3 Expansion will resume when Array Accelerator RAM allocation is successful 4 Expansion will...

Страница 191: ...e Memory Address Range of an ISA Card Check the Memory Address Configuration of installed ISA Card s or Run Options ROMPaq Utility to attempt SMART 2 E Option ROM Reprogramming RESUME F1 KEY Check the...

Страница 192: ...from backup If the Array Accelerator has failed replace the Array Accelerator board after the capacity expansion progress has terminated never turn off the system and replace the Array Accelerator bo...

Страница 193: ...ted SCSI Port y Overheated Condition Detected SCSI Port y Sidepanel must be Closed to Prevent Overheating SCSI Port y Redundant Power Supply Malfunction Detected SCSI Port y Wide SCSI Transfer Failed...

Страница 194: ...SCSI ID has not been replaced this indicates an intermittent drive failure This message also appears once immediately following drive replacement before data is restored from backup 1783 Slot x Drive...

Страница 195: ...ons are unknown Then turn system power OFF and move drives to their original positions 7 To avoid data loss turn the system power OFF and reattach drives to the original controller 8 To avoid data los...

Страница 196: ...rt the computer with the drive array disabled Run ADU for more information Or Press F2 to use the drives as configured and lose all the data on them 1789 Slot x Drive Array Physical Drive s Not Respon...

Страница 197: ...or memory Power was not restored within four days and data in the Array Accelerator was lost Check all files for potential data corruption Or The Array Accelerator batteries have failed 1794 Slot x Dr...

Страница 198: ...Read Error Occurred Data in Array Accelerator has been lost Array Accelerator is disabled Replace the Array Accelerator or the Smart Array controller Restore data from backup 1798 Slot x Drive Array...

Страница 199: ...n Generally it will be the number of PCI slots not used for other peripherals The maximum number of internal and external drives that you can install in your system also depends upon your server and y...

Страница 200: ...set If your drives are installed in a Compaq ProSignia ProSignia 500 ProSignia 300 ProSignia VS or Systempro XL you must manually set the SCSI ID jumpers Q Should SCSI IDs in my system be consecutive...

Страница 201: ...o not interchange these connectors after you configure your Smart Array 3200 Controller Interchanging the connectors could result in a loss of your data If you have hard drives installed in your serve...

Страница 202: ...testing laboratories reveals that you might have problems such as time outs data corruption and so on The Smart Array 3200 Controller takes full advantage of SCSI tagged command queuing something that...

Страница 203: ...description 5 1 expand priority 5 24 features 1 6 main configuration screen 5 19 methods supported 1 7 NetWare support 5 3 rebuild priority 5 24 running 2 5 running from 5 4 starting 5 3 Windows NT su...

Страница 204: ...mpaq SmartStart and Support Software CD System Configuration Utility 4 1 Compaq SSD for Windows NT setup 6 18 Compaq website xiii compromised fault tolerance H 6 concurrent request servicing E 17 conf...

Страница 205: ...led drive H 3 spare drive H 3 drive mirroring See RAID 1 drive movement 1 8 drive parameter tracking E 23 drivers installing from Novell SSD 6 5 installing materials needed 6 2 standard Windows NT ins...

Страница 206: ...RAID 4 E 8 RAID 5 E 7 recovering drives 6 10 software based E 28 FCC Class A compliance notice A 1 FCC Class B compliance notice A 2 features new 1 1 features other 1 2 Federal Communications Commissi...

Страница 207: ...xWare 6 28 interface See Smart Array 3200 Controller interim data recovery E 24 interim recovery mode 5 34 E 10 internal connections 1 1 J Japanese Notice A 5 L laser device regulatory compliance A 5...

Страница 208: ...e Array Configuration Utility See CPQONLIN NLM 6 12 no fault tolerance See RAID 0 recovering drives 6 13 Novell NetWare fault tolerance 6 8 installing the driver 6 2 NT See Windows NT NTREADME HLP 6 1...

Страница 209: ...read ahead cache 1 4 README HBA 6 29 rebuild priority 5 24 rebuilding data E 5 recovery online 4 5 Redundant Arrays of Inexpensive Disks See RAID replacing a failed drive H 3 replacing the Smart Arra...

Страница 210: ...ay Configuration Utility 5 3 STARTUP NCF 6 8 6 9 stripe size 5 27 changing of an Array 2 5 user selectable illustrated E 13 symbols in text xii symbols on equipment xii SYS SYSTEM 6 5 SYSCON 6 7 6 10...

Страница 211: ...Project Compaq Smart Array 3200 Controller Reference Guide Comments 340862 002 File Name R INDX DOC Last Saved On 12 7 98 2 14 PM COMPAQ CONFIDENTIAL NEED TO KNOW REQUIRED wizards Array Configuration...

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