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DAS-208SA Disk Array User Guide

4.7 Rebuilding a Failed Disk Drive

If you have a spare drive on the system, the controller will rebuild the disk array

automatically. Select the

6 RAID Funcs

from main menu.

Main Menu

6 RAID Funcs

Select the 65 Add Disk option, press

Enter

and specify which slot has a newly

installed disk drive.DAS-208SA Disk Array has all the slots numbered on the

front panel (HD1 – HD8).

For example, the fourth slot has a new disk.

65 Add Disk

Disk 4

System will automatically rebuild the new disk. Wait for a while for completion.

Summary of Contents for DAS-208SA

Page 1: ...DAS 208SA Disk Array User Guide DAS 208SA Disk Array User Guide For Serial ATA to Ultra320 RAID Subsystem v 1 0...

Page 2: ...e in a residential installation This equipment generates and can radiate radio frequency energy and if not installed and used according to the instructions may cause harmful interference to radio comm...

Page 3: ...rotection for the data stored on the array And thanks to today s powerful disk technology one RAID system can now provide the capacity more than 1TB in a large cabinet This offers a wealth of signific...

Page 4: ...ster and easier maintenance Multiple alter design for easier management 1 3 Unpacking Your DAS 208SA Before removing your DAS 208SA from the shipping carton you should virtually inspect the physical c...

Page 5: ...hipping container and packing material for reuse Before you begin to use your DAS 208SA read section 1 4 Components of the DAS 208SA to learn more about the major components or your RAID Disk Array It...

Page 6: ...Control Buttons The control panel of the DAS 208SA consists of a LCD display panel and 4 control buttons This is where you will check the configuration and status of the disk array Figure1 2 shows th...

Page 7: ...ion of the firmware Serial Number xxxxxxxxxxxxx Indicates the serial number of the RAID controller FAN1 RPM Indicates the speed of Fan 1 FAN2 RPM Indicates the speed of Fan 2 Temp 1 Indicates the temp...

Page 8: ...isk Removed R Spare Disk S Disk Initializing I RAID Set 1 1 RAID Set 2 2 RAID Set 3 3 RAID Set 4 4 Read Write W Table 1 3 Item Error messages shown on LCD LCD show Fan module 1 fail Fan1 Failed LCD sh...

Page 9: ...to a modem Console port This is a RS 232 serial port allowing you to connect to a terminal or a PC You may configure this disk array and upgrade the firmware and RAID Primary and Secondary Channels D...

Page 10: ...supplies located at the rear of the subsystem If two of the power supplies are in use and one fails to function an audible alarm will warn you of the power failure Power Cord Slot These are where you...

Page 11: ...r DAS 208SA Disk Array to the computer using a SCSI adapter installed the adapter s in an available slot in the computer prior to beginning the DAS 208SA installation See your operating system manuals...

Page 12: ...t adapter 2 1 5 Host Bus Termination The disk array is shipped with host channel buses terminated If the disk array is not the last device on the host bus you must turn off termination from the LCD pa...

Page 13: ...Disk Drive Installation Any 3 5 Serial ATA hard disk half height 1 2 54cm SCA connector can be installed into the canister of DAS 208SA Figure 2 1 shows the disk drive and canister of DAS 208SA Disk A...

Page 14: ...e canister Please note that you fasten the drive at the right location See Figure 2 2 Figure 2 2 DAS 208SA Disk Array provides eight slots that enable you to utilize eight disk drives Insert each slot...

Page 15: ...onsists of a two lines 16 character LCD display two LED indicators four push buttons and a reset button allowing users to configure and monitor the operation of the disk array A menu of configuration...

Page 16: ...d via a modem or direct serial interface displays all information pertinent to a particular function on a larger terminal screen In addition the help information which is impractical to be shown on th...

Page 17: ...tion 4 1 2 Quick setup via Terminal Configuration 3 2 2 Using PC for Terminal Emulation If you do not have a dedicated terminal you can still use a PC configured as a terminal running a terminal emula...

Page 18: ...Mode and Configuration Mode We will discuss each of the RAID disk array operation mode in the following sections 3 3 1 Self Diagnostic Mode To ensure flawless operation the disk array has a built in...

Page 19: ...l or via a terminal Note that you are entering the configuration mode whenever you are pressing the SEL button during the Operation Mode If you wish to enter to the configuration mode from a terminal...

Page 20: ...tion mode consists of the following menus Quick Setup RAID Parameters SCSI Parameters RS 232 Parameters System Parameters NVRAM and RAID Functions We will navigate the main tree in this section Figure...

Page 21: ...p Quick Setup allows users to quickly setup the RAID level and choose the desired drives The DAS 208SA provides the following RAID levels 5 3 1 0 0 1 30 and 50 Figure 3 2 Select the raid level that fu...

Page 22: ...AID Parameters menu allows users to configure RAID settings such as array partitions slice and stripe size See Figure 3 3 for the main screen of RAID Parameters menus Figure 3 3 The following is the d...

Page 23: ...Number Select the number of disks to construct the RAID set Setting 8 7 6 5 4 3 based on the RAID level 114 Slice Setup each slice s size 1141 Slice 00 MB Key in size in MB 1142 Slice 01 MB Key in siz...

Page 24: ...Configure the RAID set 3 14 Array 4 Configure the RAID set 4 15 Array 5 Configure the RAID set 4 16 Array 6 Configure the RAID set 4 17 Array 7 Configure the RAID set 4 18 Array 8 Configure the RAID s...

Page 25: ...Parameters The SCSI Parameters menu is used to edit parameters of two SCSI host channels of the Disk Array See Figure 3 4 SCSI Parameters Menu Screen Figure 3 4 The brief explanation of the selection...

Page 26: ...SI ID Settings 0 14 MULTIPLE Default 0 212 Speed Settings Ultra320 Ultra3 Ultra2 Ultra Fast Default Ultra320 213 Wide Settings ENABLE DISABLE Default ENABLE 214 LunMap LUN to slice mapping 2141 Lun0 S...

Page 27: ...8 Lun 7 Settings DISABLE Array 1 8 Slice 0 7 2149 Lun Settings DISABLE Array 1 8 Slice 0 15 for Lun 8 127 214 QAS Settings ENABLE DISABLE Default ENABLE 22 Secondary SCSI Editing secondary SCSI channe...

Page 28: ...0 7 2243 Lun 2 Settings DISABLE Array 1 8 Slice 0 7 2244 Lun 3 Settings DISABLE Array 1 8 Slice 0 7 2245 Lun 4 Settings DISABLE Array 1 8 Slice 0 7 2246 Lun 5 Settings DISABLE Array 1 8 Slice 0 7 2247...

Page 29: ...29 DAS 208SA Disk Array User Guide Settings ENABLE DISABLE Default ENABLE...

Page 30: ...RS232 Parameters Menu is used to configure the settings of RS232 port including password modem and terminal port settings See Figure 3 5 RS232 Parameters Menu Screen Figure 3 5 The brief explanation o...

Page 31: ...14400 19200 28800 38400 57600 115200 Default 115200 312 Stop Bit Settings 1 2 Default 1 313 Data Bit Settings 7 8 Default 8 314 Parity Settings NONE ODD EVEN Default NONE 32 Terminal Port Set up Term...

Page 32: ...32 DAS 208SA Disk Array User Guide Default 8 324 Parity Settings NONE ODD EVEN Default NONE...

Page 33: ...Parameters The System Parameters menu allows you to configure the system including password pager and fax settings See Figure 3 6 System Parameters Menu Screen Figure 3 6 The expansion of the selectio...

Page 34: ...Default ENABLE 412 Set Passwd Settings 8 character string 42 Pager Info Set up Pager function 421 Paging Settings ENABLE DISABLE Default DISABLE 422 Pager1 No 4221 Tel No Settings Up to 16 character s...

Page 35: ...425 Repeat Settings 5 10 15 and 20 minutes Default 5 426 Interval Settings 5 10 15 20 minutes Default 5 427 Paging Now Settings Yes No Default No 43 FAX Info Set up FAX function 431 FAX Settings ENABL...

Page 36: ...5 and 20 times Default 5 436 FAX Now Settings Yes No Default No 44 Company Info Used to enter Log information with the FAX 441 String 1 Settings Up to 16 alphanumeric characters Default None 442 Strin...

Page 37: ...08SA Disk Array User Guide 3 4 6 NVRAM The NVRAM Menu describes the information of the controller See Figure 3 7 NVRAM Menu Screen Figure 3 7 The expansion of the selection item of NVRAM menu is liste...

Page 38: ...ed to the controller or reboots it 51 Update NVRAM Update the RAID controller s configuration Settings NO YES Default NO 52 Erase NVRAM Erase the RAID controller s configuration Settings NO YES Defaul...

Page 39: ...User Guide 3 4 7 RAID Functions The RAID Functions menu allows you to check the system status See Figure 3 8 RAID Functions Menu Screen Figure 3 8 The expansion of the selection item of RAID Function...

Page 40: ...Default STOP 612 Array 2 Settings STOP START Default STOP 613 Array 3 Settings STOP START Default STOP 614 Array 4 Settings STOP START Default STOP 615 Array 5 Settings STOP START Default STOP 616Arr...

Page 41: ...TOP START Default STOP 623 Array 3 Settings STOP START Default STOP 624 Array 4 Settings STOP START Default STOP 625 Array 5 Settings STOP START Default STOP 626 Array 6 Settings STOP START Default ST...

Page 42: ...roller to remove a disk from system Settings Disk 1 8 Default NONE 67 Statistic Display all statistic data on terminal Statistics Company Info FAX Info Pager Info I O Statistic 68 Expand Array this is...

Page 43: ...43 DAS 208SA Disk Array User Guide 688 Array 8 Select number of disks 69 Update ROM Update the RAID controller s firmware...

Page 44: ...Host Channels Creating RAID Sets with One or Multiple Partitions Setting up Host and Disk Channels Spare Drives designation Setting Up Alert Functions Rebuilding a Failed Disk Drive Deleting a RAID S...

Page 45: ...on to select your desired number for your Password The default value is 00000000 Keep pushing ENTER button for the password You will receive a Main Menu option screen once you enter a correct password...

Page 46: ...for the level Then press Enter to confirm your selection See Figure 4 4 Figure 4 4 Level 5 Yes Step 4 The controller will start to initialize the RAID sets After initializing the RAID set the subsyste...

Page 47: ...one end of the supplied RS 232 cable to the COM port of your terminal or PC and the other end to Console port Step 2 Plug the multiport cable to the port marked as AUX at the rear of the disk array S...

Page 48: ...A Disk Array User Guide Step 4 Change the setting of the terminal to match the default settings ofDAS 208SA See Figure 4 9 namely Baud rate 115 200 Data bit 8 Stop bit 1 Parity None Flow Control None...

Page 49: ...49 DAS 208SA Disk Array User Guide Step 5 Press Control D to receive the following RAID Console screen Figure 4 10 Figure 4 10...

Page 50: ...50 DAS 208SA Disk Array User Guide Step 6 Press TAB and Enter key a password screen will prompt up See Figure 4 11 Then enter the password Default Password 00000000 Figure 4 11...

Page 51: ...08SA Disk Array User Guide Step 7 Highlight Quick Setup and then press Enter Use key A and Z to highlight your desired RAID level and then press Enter to select the option See Figure 4 12 and 4 13 Fig...

Page 52: ...52 DAS 208SA Disk Array User Guide Figure 4 13...

Page 53: ...ray User Guide Step 8 Highlight the number of hard disk you want to use and then press choose Yes to confirm your option See Figure 4 14 Note that you need to restart your disk array to activate the s...

Page 54: ...54 DAS 208SA Disk Array User Guide Step 9 The controller will start to initialize the RAID sets After initializing the RAID set the subsystem is ready for the host OS to perform high level format...

Page 55: ...maximum for mapping the RAID partitions In the following section we will outline the steps needed to create RAID sets with multiple partitions and then maps them to different host channels For exampl...

Page 56: ...password Follow the previous step to enter all the characters for the password After entering the correct password you will be presented with the Main Menu Alternatively from the terminal press TAB a...

Page 57: ...on the LCD is shown in the rectangle in the remainder of this manual The terminal emulation will display detailed information on the monitor in a similar way Enter Passwd 0XXXXXXX From the Main Menu...

Page 58: ...Set 111 Re Conf RAID Yes Select 112 RAID Level to set RAID 11 Array 1 112 RAID Level Use arrow keys to select the RAID level you want For example you may set RAID level as 0 1 3 5 0 1 30 50 or none 1...

Page 59: ...levels will be recorded and start to work Go to 5 NVRAM menu Main Menu 5 NVRAM Select 51 Update NVRAM 5 NVRAM 51 Update NVRAM Use arrow keys select Yes to save the configurations 51 Update NVRAM Yes...

Page 60: ...enter the size of the partition 1 of the RAID set 1 in MB For example enter 4000 and press Enter You may repeat the same procedure to configure Slice1 to Slice7 1141 Slice0 MB 4000 When it is done re...

Page 61: ...u item from the main menu Main Menu 2 SCSI Params Press arrow key and move to 21 Primary SCSI 2 SCSI Params 21 Primary SCSI Select 211 Set SCSI ID 21 Primary SCSI 211 Set SCSI ID Move to 211 Set SCSI...

Page 62: ...CSI host adapter has an option of enabling the tag queuing make sure to enable it Press ENTER to Enable 21 Primary SCSI 212 Tag Queuing The 213 Speed options are to be set according to the host 1 SCSI...

Page 63: ...save your configurations in 51 Update NVRAM Press Enter and the RAID will begin to initialize the disks Initial 1 2 5 RAID Ready Where 1 2 is the first of the two RAID sets INIT OK RAID Ready Now the...

Page 64: ...Alert Functions There are two alert functions provided by the disk array You could choose to send the warning messages to a fax or to a pager The steps needed to setup the functions are shown below Se...

Page 65: ...43 FAX Info sub menu there are a few options to setup 431 FAX To enable or disable the paging function 432 FAX Class Set up the Class of FAX 433 FAX 1 No FAX to the first number 434 FAX 2 No If the F...

Page 66: ...ct the 6 RAID Funcs from main menu Main Menu 6 RAID Funcs Select the 65 Add Disk option press Enter and specify which slot has a newly installed disk drive DAS 208SA Disk Array has all the slots numbe...

Page 67: ...efore the deletion Select the 2 SCSI Params function from main menu Main Menu 2 SCSI Params Select the 21 Primary SCSI function 2 SCSI Params 21 Primary SCSI Select 215 Lun Map then select 2151 Lun 0...

Page 68: ...de 21511 Array 1 Disable Next move to 1RAID Params from Main menu Main Menu 1 RAID Params From the Main Menu follow 11 Array 1 111 Re conf RAID Select Yes 112 RAID Level 112 RAID NONE Go to 51 Update...

Page 69: ...bedded firmware of the disk array can be updated through the TERMINAL port using a PC running terminal emulation program The procedures are as below Select the 9 Utilities function from main menu From...

Page 70: ...firmware transfer complete Enter Go to update the firmware Go the G must be upper case and o is lowercase Enter Go to reconfirm Go Programming count 0656 Done Verifying After the firmware updated DAS...

Page 71: ...y 1 When hardware failure happens to the original SA2081SA Disk Array please switch off the power and then discharge all 8 bay hard drives 2 Re insert hard drives in the new SA2081SA Disk Array in the...

Page 72: ...o the drives and that the drives are operational Yellow ACCESS LEDs will go off and on with each drive read or write operation Power supplies have green LEDs that stay on all the time if the power sup...

Page 73: ...technologies described in 1987 by three researchers from University of California at Berkeley David Patterson Garth Gibson and Randy Katz RAIDs were conceived to overcome the data reliability problem...

Page 74: ...or transfer rate or both Transaction rate is expressed in input output or I O operations per second IOPS or IO s Transfer rate is expressed in millions of bytes transferred per second MBPS or MB s Tw...

Page 75: ...ce advantage and may actually reduce write performance well below that of a single disk Because of its high data reliability and ease of implementation RAID 1 has been used in storing critical data fo...

Page 76: ...if the data bits at an instant in time are 0101 the parity generated would be 1 total of three bits on for 0001 p would be 0 1 bit on for 0110 p 1 for 1000 p 0 etc The parity bit is stored with its co...

Page 77: ...k is not responding or has reported an ECC error A 6 RAID 4 Rather than being broken up into blocks and stored on multiple data disks as a RAID 3 data file is RAID 4 stores the entire data file on a s...

Page 78: ...in concept change which has major performance ramifications distributed parity files Instead of having all parity files located on a single disk the parity files are allocated evenly to all disks alwa...

Page 79: ...Numbers in parenthesis indicate how many possible concurrent operations of that type are possible if more than 1 RAID type Read transaction rate Write transaction rate Transfer rate per read Transfer...

Page 80: ...ys 8 bays Environment Monitor Power fan disk and temperature failure Power 300 Watts redundant power supplies with load sharing RAID Level 0 1 10 3 5 30 50 JBOD Multiple RAID Sets Yes Online Capacity...

Page 81: ...ty over these drives In this appendix we will give some examples and show how this is done Backup Recommendations Before you expand the capacity of your existing RAID set we strongly recommend you hav...

Page 82: ...expand the capacity of the previously configured disk array We will add three hard drives DRIVE6 DRIVE7 and DRIVE8 Each drive adds 2GB to the disk array Drives DRIVE6 and DRIVE7 will be added to arra...

Page 83: ...display detailed information on a monitor in a similar way Enter Passwd 0XXXXXXX From the Main Menu move to 6 RAID Funcs Main Menu 6 RAID Funcs From 6 RAID Funcs go to 68 Expand Array 681 Array 1 6811...

Page 84: ...142 Slice1 2000 MB Remember to go to 51 Update NVRAM to save all configurations Then move to 2 SCSI Params Main Menu 2 SCSI Params Go to 21 Primary 215 Lun Map 2152 Lun1 as Lun0 may have been set 2152...

Page 85: ...Upgrade Cache Memory The disk array has default 128MB cache memory If you decide to upgrade cache memory it should meet the following specifications To install the cache memory please power off the d...

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