SurfRAID LC16 Series User Manual Download Page 9 | Manualshive

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SurfRAID LC16 Series User Manual Download Page 9

SurfRAID LC16 Series User’s
Manual

9

1.1.1.4 Striping with Interspersed Parity (RAID 5)

Striping with Parity is a method of storing data striped across multiple drives like RAID 0 but
with parity (redundant data calculated by XOR logic used to reproduce data in case of lost data)
also striped across the drives. RAID Level 5, which offers a very high data redundancy, avail-
ability and performance.

Block1

Block2

Block3

Block4

Block5

Block6

Block7

Block8

Block1

Block2

Parity 3,4

Block3

Block6

Parity 5,6

Block7

Block8

Striping with Parity

Data

Disk 1

Disk 2

Parity1,2

Block4

Block5

Parity 7,8

RAID 5

1.1.1.5 Striping with Mirroring (RAID 0+1)

This RAID level is a combination of RAID 0 (Striping) and RAID 1 ( mirroring), it contains both
features of these arrays-security and sequential performance. Sometimes it is referred to as RAID
10.

Block1

Block2

Block3

Block4

Block5

Block6

Block7

Block8

Block1

Mirror2

Block3

Mirror4

Block5

Mirror6

Block7

Mirror8

Data

Disk 1

Disk 2

Block2

Block4

Block6

Block8

Mirror1

Mirror3

Mirror5

Mirror7

RAID 0+1

Disk 3

Disk 4

Striping

Striping

Mirror

«
...
7
8
9
10
11
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Summary of Contents for LC16 Series

Page 1: ...SurfRAID LC16 LCE16 Series Enhanced RAID Storage SCSI Fibre Channel Storage Systems S u r f R A I D User s Manual Support 800 550 3005...

Page 2: ...y shall be repair or replacement as provided below In no event will PDS be liable for damages lost data lost revenue lost wages lost savings or any other incidental or consequential damages arising fr...

Page 3: ...CONNECTING 16 2 5 INSTALLING THE DISK 16 2 5 1 Removingthediskcartridge 16 2 5 2 Installingthedisk 17 2 5 3 Installingthediskcartridge 17 2 6 POWER ON AND SELF DIAGNOSTIC 18 2 6 1 Powering on the sys...

Page 4: ...your RAID 32 Chapter 4 HOT SWAP COMPONENTS 4 1 SWAPPING THE DISK 34 4 2 SWAPPING THE POWER SUPPLY MODULE 34 4 3 SWAPPING THE COOLING FAN 35 4 3 1 System Cooling Fans 35 Chapter 5 ADVANCE SETUP 5 1 UPD...

Page 5: ...been damaged DO NOT place or drop objects on top of theSurfRAIDLC16 anddonotshove any foreign objects into it DO NOT expose the SurfRAID LC16 to liquids rain or moisture DO NOT expose the SurfRAID LC1...

Page 6: ...arts of the SurfRAID LC16 and prepare the hardware for configuration Chapter 3 CONFIGURING YOUR RAID Quick Setup Provides a simple way to setup yourSurfRAID LC16 Customizing Setup Provides step by ste...

Page 7: ...rallel With RAID storage speed increases as more drives are added 1 1 1 RAID LEVELS The SurfRAID LC16 supports RAID Levels 0 1 3 5 0 1 Each RAID level offers a different performance functionality and...

Page 8: ...3 Striping with Dedicated Parity RAID 3 Performs Block Striping with Dedicated Parity One drive member is dedicated to storing the parity data When a drive member fails the controller can recover rege...

Page 9: ...Block7 Block8 Block1 Block2 Parity 3 4 Block3 Block6 Parity 5 6 Block7 Block8 Striping with Parity Data Disk 1 Disk 2 Parity1 2 Block4 Block5 Parity 7 8 RAID 5 1 1 1 5 Striping with Mirroring RAID 0 1...

Page 10: ...cy 2 N Low 1 Mirrored Disks Provides redundancy by writing identical data to each member disk of the array 2 1 Very High 3 Striping with dedicated parity disk Provides redundancy by writing parity to...

Page 11: ...for easy integration smooth data expansion and server migration The SurfRAID LC16 supports the following features Host System independence Operating System independence High performance processor Supe...

Page 12: ...items from the container If anything is missing or broken please inform us ASAP It is advisable to keep the packaging as you might need to ship yourSurfRAID LC16 or send it in for service Youwillneedt...

Page 13: ...SurfRAID LC16S SurfRAID LC16 The model of SurfRAID LC16F J J J J J J J J J J J J J Total sixteen disks channel status Other symbols are Symbol Description X Disk is not Installed A Disk is being Adde...

Page 14: ...idge Total 16 pcs 3 Cartridge Handle 4 Release Button 5 Latch 6 HDD status LED Indicator 8 Power On Indicator green 9 Power Fail Indicator Red 10 Host System Access Indicator Yellow 7 Function keys EN...

Page 15: ...hannel Port 4 Second Host SCSI Channel Port OR 5 1st Fibre Channel Loop 6 2nd Fibre Channel Loop 7 System Cooling Module 1 8 System Cooling Module 2 9 System Cooling Module 3 10 PowerSwitch 11 AC Inle...

Page 16: ...Make sure that all the devices are powered off before connecting or removing cables to prevent power spikes which can damage technical components 2 5 Installing Disk Cartridge The SurfRAID LC16 inclu...

Page 17: ...prop erly tightened 2 5 3 Installing the disk cartridge 1 Make sure the handle is up and the latch is in the unlocked position 2 Gently slide the disk cartridge to the end of the slot then firmly pus...

Page 18: ...tion SurfRAID LC16 has a built in self diagnostic utility Self diagnostic Mode occurs automatically upon power up or after reset During this mode all components are tested and any potential problems w...

Page 19: ...mation on a larger terminal screen via a serial interface The monitor utility is identical to the LCD display where it displays the basic self diagnostic opera tion and configuration information Howev...

Page 20: ...Ports Settings To configure the RS 232 communication ports the following settings must be configured at the remote terminal or terminal emulation program and at theSurfRAIDLC16 3 2 3 2 TerminalAccess...

Page 21: ...the Menu window with the Main Menu options To the right is the OUTPUT window that shows more detailed information about theSurfRAID LC16 At the bottom are the instructions on how to navigate using th...

Page 22: ...the following steps 3 3 1 1 Defaults value of Quick setup The RAID s parameters will be set to defaults value as the following table after processing the Quick setup function If you want to change an...

Page 23: ...the RAID level and Disk Number Sub Option Settings Default setting 2 2 RAID Level 0 1 3 5 0 1 None 5 Description Use to specify the RAID Level Refer to section for a description of each RAID level Su...

Page 24: ...urfRAID LC16 to efficiently handle multi threaded applications that issue multiple disk commands A SurfRAID LC16 160S The SCSI Params consists of two categories Each category is used to configure an i...

Page 25: ...re allows the handling of more I O requests from the host improving the performance of the SurfRAID LC16 Sub menu option Setting Default Setting 314 324 Speed Ultra3 Ultra2 Ultra Fast Ultra3 Descripti...

Page 26: ...ted Auto Negotiated Description To select the transfer rate of FC AL Sub menu option Sun options Setting Default 316 326 Lun Map 3161 Lun 0 Slice 0 3162 Lun 1 Slice 0 3163 Lun 2 Slice 0 3164 Lun 3 Sli...

Page 27: ...val 20 15 10 5 5 527 Page NOW None none Description Use to enable paging notification when a failure occurs One or two pagers can be notified with a unique code that can be up to 28 characters For eac...

Page 28: ...permanently erased on the disks Sub menu options Settings Default setting 61 Update NVRAM No Yes No Description Use to store the settings for all the options When a change is made in order for it to t...

Page 29: ...is is only valid when an existing disk was removed using the 76 Remove Disk option Sub menu options Settings Disk 1 Disk 2 Disk 3 Disk 4 Disk 5 Disk 6 Disk 7 Disk 8 Disk 9 Disk 10 Disk 11 Disk 12 Disk...

Page 30: ...sable Enable Description Use to enable the Ultra DMA data transfer mode of the SurfRAID LC16 with the installed disks during initialization Sub menu Sub menu Setting 1 1 Disk 2 2 Disks 3 3 Disks 4 4 D...

Page 31: ...arams 1 RAID Params 11 Re Conf RAID 11 Re Conf RAID No 11 Re Conf RAID Yes 1 RAID Params 11 Re Conf RAID 1 RAID Params 12 RAID Level 12 RAID Level None 12 RAID Level 5 ENT Enter To confirm RAID Level...

Page 32: ...Set SCSI ID 211 Set SCSI ID Moving the cursor to n 0 n The SCSI ID what you want 211 Set SCSI ID n 2 Interf Params 21 Set SCSI ID Main Menu 0 Quick Setup Main Menu 5 NVRAM 5 NVRAM 51 Update NVRAM 51 U...

Page 33: ...ion mode after RAID start up you have to use the new password Z Moving the cursor to 53 Restart ENT Enter To restart the RAID with new configuration Z Moving the cursor to Yes ENT Enter Confirm to wri...

Page 34: ...dge into the bay along the plastic guides until the handle begins to close 7 Push down the handle to secure the cartridge into theSurfRAID LC16 system 8 Slide the latch to the locked position The driv...

Page 35: ...module perform the following steps 1 Release the thumbscrews on the fan module the Fan fail LED on the module should turn bright red 2 Slide the module out completely from the cooling Fan module base...

Page 36: ...irmware Message Pressing Description Ctrl D Invoke the Monitor utility SURFRAID LC16 U3 Monitor Utility Tab Go to Configuration mode Password Enter Password xxxxxxxx Your Password 8 Numbers Default is...

Page 37: ...SCSI ID Remember the majority of SCSI host adapter reserves SCSI ID 7 for the adapter ID Problem The SurfRAID LC16 is not detected by the SCSI host adapter Possible Cause Incorrect termination in a da...

Page 38: ...ese settings If the settings were changed during Configuration Mode verify the settings of theSurfRAID LC16 in the RS 232Params Terminaloptionandchangetheterminalsettingsaccordingly Problem The front...

Page 39: ...sible Cause Memory SIMM module may not be properly seated or may not be supported by the particularSurfRAID LC16 model Fix Re seat the memory module in to the socket and retry If it continues to fail...

Page 40: ...y byte was unable to be read write Blk is the block sector on the disks that failed Possible bad disk RAID 5 Check ERROR The R5 Check function failed Possible wrong RAID configuration or not initializ...

Page 41: ...perating Systems Power Supply Relative Humidity Weight Dual Ultra160 SCSI channels Dual loops of2Gbit Fibre channels 512 Mbytes standard ECC 144pins SDRAM Memory Intel i80303 64bit RISC CPU 0 1 3 5 or...

Page 42: ...5 12 SCSI_AC_DAT 6 46 SCSI_AC_DAT 6 13 SCSI_AC_DAT 7 47 SCSI_AC_DAT 7 14 SCSI_AC_PAR 0 48 SCSI_AC_PAR 0 15 GND 49 GND 16 GND 50 GND 17 TERMPWRA 51 TERMPWRA 18 TERMPWRA 52 TERMPWRA 19 GND 53 GND 20 GN...

Page 43: ...SurfRAID LC16 Series User s Manual 43 FC AL HSSDC Connector RS 232 Modem Male Connector...

Page 44: ...p Host Computer Any computer system to which disks are directly attached and accessible for I O Mainframes and servers as well as workstations and personal computers can all be considered host comput...

Page 45: ...un dant Arrays of Inexpensive Disks This paper was published in 1988 by David A Patterson Garth Gibson and Randy H Katz of the University of California at Berkley Counting the term RAID 0 that refers...

Page 46: ...ain Menu and NVRAM and select Update NVRAM Select YES 6 Return to the Main Menu Select SCSI FC Parameters Select Primary SCSI FC and then LUN Map 7 Select Lun 0 mapping to Slice 0 8 Return to the Main...

Page 47: ...nt to Point OK OK OK OK 2GB Arbitrated Loop 2GB S Dual Loop preferred otherwise Point to Point OK OK OK OK 2GB Point to Point 2GB S Dual Loop preferred otherwise Point to Point OK OK OK OK If the Surf...

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