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3-31

图

3-53

RAID information screen

7. Erasing Data from the Disk

This function is used to delete internal data of the disk, including erasing physical disk data and

logical disk data.

•

Erasing data from a physical disk

(1)

On the RAID card configuration screen, select

Drive Management

and press

Enter

, as

shown in

图

3-54

Summary of Contents for UniServer T1100 G3

Page 1: ...H3C UniServer T1100 G3 Server Storage Controller User Guide New H3C Technologies Co Ltd http www h3c com Document version 5W100 20180509...

Page 2: ...Blade Comware ITCMM and HUASAN are trademarks of New H3C Technologies Co Ltd All other trademarks that may be mentioned in this manual are the property of their respective owners Notice The informatio...

Page 3: ...equired syntax choices separated by vertical bars from which you select one x y Square brackets enclose a set of optional syntax choices separated by vertical bars from which you select one or none x...

Page 4: ...s a Layer 2 or Layer 3 switch or a router that supports Layer 2 forwarding and other Layer 2 features Represents an access controller a unified wired WLAN module or the access controller engine on a u...

Page 5: ...Documentation feedback You can e mail your comments about product documentation to info h3c com We appreciate your comments...

Page 6: ...ting the RST Working Mode 2 2 2 1 2 Entering the RST Configuration Screen 2 4 2 1 3 Command Tasks 2 5 2 2 Configuring RAID in Legacy Boot Mode 2 10 2 2 1 Setting the RST Working Mode 2 10 2 2 2 Enteri...

Page 7: ...ew of Disk Array 6 1 6 1 1 Physical Disk 6 1 6 1 2 Logical Disk 6 1 6 1 3 Data Striping 6 2 6 1 4 Disk Array 6 3 6 2 Impacts of Disk Failure on Logical Disks 6 4 6 3 Fault Tolerance Methods 6 4 6 3 1...

Page 8: ...Legacy Boot Mode RAID LSI 9361 8i 1G B RAID card 3 1 Configuring RAID in UEFI Boot Mode 3 2 Configuring RAID in Legacy Boot Mode 1 1 2 Supported Operating System For the operating system supported by...

Page 9: ...pid Storage Technology RST onboard RAID card integrated the AHCI and RAID programs is mainly used for Intel chipset for disk management disk status viewing and other applications The RST is embedded o...

Page 10: ...nboard soft RAID supports disk hot plugging You can remove and replace the damaged disk without shutting down the system or cutting off the power supply This improves the timely recovery capability sc...

Page 11: ...1 0 RAID 1 2 1 RAID 5 3 1 RAID 6 3 4 recommended 2 RAID 10 4 n n is the number of RAID 1s that make up RAID 10 RAID 50 6 n n is the number of RAID 5s that make up RAID 50 RAID 60 6 8 recommended 2n n...

Page 12: ...t the requirements the RAID level can be modified without affecting the data integrity RAID cards support the migration of the following RAID levels RAID 0 to RAID 1 RAID 5 and RAID 6 RAID 1 to RAID 0...

Page 13: ...disk in Legacy boot mode 3 2 2 8 Clearing the Residual RAID Information on the Disk 8 Initializing the Logical Disk After the RAID card is configured with a RAID the RAID needs to be initialized so t...

Page 14: ...ollowing methods Upgrading the firmware in UEFI boot mode 3 1 2 11 Online Upgrading the RAID Card Firmware 11 Supporting Disk Hot Plugging The RAID card supports disk hot plugging You can remove and r...

Page 15: ...in UEFI boot mode and Legacy boot mode 2 1 Functions supported by the RST onboard soft RAID Functions Mode Configuration Method Configuring RAIDs UEFI boot mode 2 1 3 1 Configuring a RAID Legacy boot...

Page 16: ...re enter the BIOS to complete the operation For details see the H3C Uniserver T1100 G3 Server Greenlow Platform BIOS User Guide 2 1 1 Setting the RST Working Mode This section describes how to set the...

Page 17: ...ion and press Enter as shown in 2 4 2 4 PCH IO Configuration screen 4 Select SATA Mode Selection press Enter and select the working mode as shown in 2 5 For details about the RST onboard soft RAID wor...

Page 18: ...n Screen Note 2 6 The Intel R Rapid Storage Technology option on the interface is shown based on the premise that the working mode of the SATA controller is set to RAID mode For details see 2 1 1 Sett...

Page 19: ...n 3 Enter the RST configuration screen as shown in 2 7 2 7 RST configuration screen 2 1 3 Command Tasks 1 Configuring a RAID This section describes the procedure for configuring a RAID The operation p...

Page 20: ...Configuration Screen 2 Select Create RAID Volume and press Enter as shown in 2 8 2 8 Selecting Create RAID Volume 3 On the screen shown in 2 9 set the Name RAID Level Select Disks Strip Size and Capa...

Page 21: ...e available disk is displayed below the Select Disks column Press Enter to select the disk X indicates that the disk is selected Strip Size Indicates the stripe size that is the size of the stripe dat...

Page 22: ...procedure for deleting a RAID The operation procedure is as follows 1 You have entered the RST configuration screen For details see section 2 1 2 Entering the RST Configuration Screen 2 Select the RAI...

Page 23: ...2 11 Selecting the RAID to be deleted 3 Enter the RAID information screen shown in 2 12 select Delete and press Enter Then select Yes and press Enter The RAID is deleted 2 12 Deleting the RAID informa...

Page 24: ...acy and press F10 to save the settings The server will automatically restart Then re enter the BIOS to complete the operation For details see the H3C Uniserver T1100 G3 Server Greenlow Platform BIOS U...

Page 25: ...ls about the RST onboard soft RAID working mode see 1 2 2 1 Switching Between Operating Modes 2 15 Modifying the working mode of the SATA controller 5 After the configuration is complete press F10 In...

Page 26: ...ing Mode and the number of disks connected to the controller is not less than two 1 Power on or restart the server After the screen shown in 2 16 is displayed during the BIOS boot process press Ctrl I...

Page 27: ...Acceleration Options Indicates an acceleration option Exit Exits the screen DISK VOLUME INFORMATION Disk and volume information It is located on the lower side of the configuration screen and you can...

Page 28: ...scription Parameter Description Name Specifies the RAID name RAID Level Specifies the RAID level It determines the performance disaster tolerance capability and capacity of a logical disk Disks Select...

Page 29: ...es the procedure for deleting a RAID The operation procedure is as follows 1 You have entered the RST configuration screen For details see section 2 2 2 Entering the RST Configuration Screen 2 On the...

Page 30: ...hown in 2 23 On the RESET RAID DATA screen select a hard disk for which the RAID configuration information will be deleted Click Space to select the desired hard disk After the selection is complete y...

Page 31: ...re is as follows 1 You have entered the RST configuration screen For details see section 2 2 2 Entering the RST Configuration Screen 2 On the RST configuration screen select Create RAID Volume and pre...

Page 32: ...t be less than or equal to the size of the Recovery Driver The capacity of the Master Driver must be less than or equal to 1 3125 TB 2 27 Recovery Disk settings screen 5 Enter the setting screen as sh...

Page 33: ...tep Enable Only Recovery Disk Enables the Recovery Disk only Enable Only Master Disk Enables the Master Disk only 2 29 Recovery Volume Options settings screen 5 Acceleration Options This section descr...

Page 34: ...d that after installing the system you need to install the relevant drivers and Intel Rapid Storage Technology software 3 In the Windows 10 x64 system in the search box in the Start menu bar search fo...

Page 35: ...et the maximum cache capacity to 64 GB As a part of the cache this space will not be recognized in disk management If the SSD capacity is larger than 64 GB the remaining space can still be divided int...

Page 36: ...at the status of the SSD is Cache Disk 2 33 RST configuration screen 6 As shown in 2 34 enter Acceleration Options select s or r to set the acceleration options After setting select Save and exit s Sy...

Page 37: ...2 23 2 34 Setting acceleration options...

Page 38: ...ed that the disk location function is not supported temporarily 3 1 Functions supported by the RAID card Functions Mode Configuration Method Configuring a RAID UEFI boot mode 3 1 2 2 Configuring a RAI...

Page 39: ...earing the Residual RAID Information on the Disk Online upgrading the RAID card firmware UEFI boot mode 3 1 2 11 Online Upgrading the RAID Card Firmware 3 1 Configuring RAID in UEFI Boot Mode This sec...

Page 40: ...2 Choose Advanced LSI MegaRAID LSI MegaRAID 9361 8i Configuration Utility 03 07 12 01 and press Enter as shown in 3 3 3 3 Advanced screen 3 The screen shown in 3 4 displays five types of configuration...

Page 41: ...al disks and erasing logical disk data Drive Management View physical disk properties and perform tasks such as initializing physical disks configuring hot spare disks switching physical disk modes an...

Page 42: ...ST card configuration screen select Drive Management and press Enter as shown in 3 5 3 5 RAID card configuration screen 2 Select the disk to be configured and press Enter as shown in 3 6 3 6 Drive Man...

Page 43: ...ct Operation and press Enter as shown in 3 7 In the displayed dialog box select Make Unconfigured Bad and press Enter 3 7 Operation screen 4 On the screen shown in 3 8 select Go and press Enter 3 8 Se...

Page 44: ...n 3 9 to complete the disk mode switching 3 9 Switching the disk mode 2 Configuring a RAID 1 On the RST card configuration screen select Configuration Management and press Enter as shown in 3 10 3 10...

Page 45: ...and press Enter 3 11 Selecting Create Virtual Drive 3 Select Select RAID Level set the RAID level and press Enter as shown in 3 12 3 12 Setting the RAID level 4 Select Select Drives From set the disk...

Page 46: ...the remaining capacity of the configured RAID disk Free Capacity indicates that the capacity is from an empty disk 3 13 Setting the disk capacity source of the RAID 5 On the screen shown in 3 14 sele...

Page 47: ...the disk is selected Select Apply Changes and press Enter If the disk status is Unconfigured Bad you cannot select it 3 15 Selecting the disk 7 On the screen shown in 3 16 perform the corresponding s...

Page 48: ...2 I O Policy Indicates the I O policy The value options include Cached high speed cache mode and Direct direct read write mode Access Policy Indicates the read write policy The value options include R...

Page 49: ...en shown in 3 18 configure the RAID and select OK The system returns to the RAID card configuration screen 3 18 Completing the RAID configuration 10 On the RAID card configuration screen select Virtua...

Page 50: ...3 13 3 19 RAID card configuration screen 11 On the screen shown in 3 20 you can view the created RAID Select the RAID and press Enter 3 20 Virtual Drive Management screen...

Page 51: ...red to improve data security You can configure a global hot spare disk or a dedicated hot spare disk as required Note Hot spares are used only for redundant RAID levels The capacity of the hot spare m...

Page 52: ...3 15 3 22 RAID card configuration screen 2 Select the disk to be configured as the global hot spare disk and press Enter as shown in 3 23 3 23 Drive Management screen...

Page 53: ...own in 3 24 Then select Assign Global Hot Spare Drive and press Enter 3 24 Operation screen 4 On the screen shown in 3 25 select Go and press Enter 3 25 Selecting Go 5 On the screen shown in 3 26 set...

Page 54: ...uration of the global hot spare disk on screen shown in 3 27 3 27 Completing the configuration of the global hot spare disk Configuring a dedicated hot spare disk 7 On the RAID card configuration scre...

Page 55: ...3 18 3 28 RAID card configuration screen 8 Select the disk to be configured as the dedicated hot spare disk and press Enter as shown in 3 29 3 29 Drive Management screen...

Page 56: ...Select Operation and press Enter as shown in 3 30 Then select Assign Dedicated Hot Spare Drive and press Enter 3 30 Operation screen 10 On the screen shown in 3 31 select Go and press Enter 3 31 Selec...

Page 57: ...ss Enter 3 32 Confirming the logical disk used as the dedicated hot spare disk 12 Complete the configuration of the dedicated hot spare disk on screen shown in 3 33 3 33 Completing the configuration o...

Page 58: ...figuration screen select Virtual Drive Management and press Enter as shown in 3 34 3 34 RAID card configuration screen 2 Select the logical disk to be deleted and press Enter as shown in 3 35 3 35 Log...

Page 59: ...t Operation and press Enter as shown in 3 36 In the displayed dialog box select Delete Virtual Drive and press Enter 3 36 Operation screen 4 On the screen shown in 3 37 select Go and press Enter 3 37...

Page 60: ...ss Enter 3 38 Confirming the deletion 6 Complete the RAID deletion as shown in 3 39 3 39 Completing the RAID deletion 5 Initializing the Logical Disk This function is used to initialize the internal d...

Page 61: ...as shown in 3 40 3 40 RAID card configuration screen 2 Select the logical disk to be initialized and press Enter as shown in 3 41 3 41 Logical disk management screen 3 Select Operation and press Enter...

Page 62: ...between Fast Initialization and Slow Initialization is that the former can write data immediately and the latter can wait until the disk space is completely initialized before writing data 4 On the s...

Page 63: ...3 26 3 43 Selecting Go 5 On the screen shown in 3 44 set Confirm to Enabled select Yes and press Enter 3 44 Confirming the initialization 6 Complete the logical disk initialization as shown in 3 45...

Page 64: ...n of the logical disk 7 View the current initialization progress as shown in 3 46 3 46 RAID information screen 6 Initializing a physical disk 1 On the RAID card configuration screen select Drive Manag...

Page 65: ...tion screen 2 Select the disk to be initialized and press Enter as shown in 3 48 3 48 Disk management screen 3 Select Operation and press Enter as shown in 3 49 In the displayed dialog box select Init...

Page 66: ...3 29 3 49 Operation management screen 4 On the screen shown in 3 50 select Go and press Enter 3 50 Selecting Go 5 On the screen shown in 3 51 set Confirm to Enabled select Yes and press Enter...

Page 67: ...51 Confirming the initialization 6 Complete the physical disk initialization as shown in 3 52 3 52 Completing the initialization of a physical disk 7 View the current initialization progress as shown...

Page 68: ...he Disk This function is used to delete internal data of the disk including erasing physical disk data and logical disk data Erasing data from a physical disk 1 On the RAID card configuration screen s...

Page 69: ...screen 2 Select the disk for which the data will be erased and press Enter as shown in 3 55 3 55 Disk management screen 3 Select Operation and press Enter as shown in 3 56 In the displayed dialog box...

Page 70: ...On the screen shown in 3 57 select Erase Mode and press Enter In the displayed dialog box select the erase mode The default mode Simple is recommended 3 57 Erase Mode screen 5 On the screen shown in 3...

Page 71: ...3 34 3 58 Selecting Go 6 On the screen shown in 3 59 set Confirm to Enabled select Yes and press Enter 3 59 Confirming the erase 7 Complete the data erase from the physical disk as shown in 3 60...

Page 72: ...sical disk Note To avoid disk failure do not perform other operations while erasing data from a physical disk Erasing data from a logical disk 1 On the RAID card configuration screen select Virtual Dr...

Page 73: ...ect the logical disk for which the data will be erased and press Enter as shown in 3 62 3 62 Logical disk management screen 3 Select Operation and press Enter as shown in 3 63 In the displayed dialog...

Page 74: ...On the screen shown in 3 64 select Erase Mode and press Enter In the displayed dialog box select the erase mode The default mode Simple is recommended 3 64 Erase Mode screen 5 On the screen shown in 3...

Page 75: ...3 38 3 65 Selecting Go 6 On the screen shown in 3 66 set Confirm to Enabled select Yes and press Enter 3 66 Confirming the erase 7 Complete the data erase from the logical disk as shown in 3 67...

Page 76: ...ion is used to expand the RAID capacity to increase the availability of RAID You can expand the RAID capacity of the RAID card by setting the percentage of available capacity of the disk 1 On the RAID...

Page 77: ...en 2 Select the logical disk to be expanded and press Enter as shown in 3 69 3 69 Virtual Drive Management screen 3 Select Operation and press Enter as shown in 3 70 In the displayed dialog box select...

Page 78: ...On the screen shown in 3 71 select Go and press Enter 3 71 Selecting Go 5 On the screen shown in 3 72 modify the percentage of available capacity of the disk in Enter a Percentage of Available Capaci...

Page 79: ...disk 6 Complete the RAID expansion as shown in 3 73 3 73 Completing the RAID expansion 9 RAID Level Migration This function is used to modify the RAID level to meet the configuration requirements with...

Page 80: ...uration screen select Virtual Drive Management and press Enter as shown in 3 74 3 74 RAID card configuration screen 2 Select the logical disk to be reconfigured and press Enter as shown in 3 75 3 75 V...

Page 81: ...peration and press Enter as shown in 3 76 In the displayed dialog box select Reconfigure Virtual Drives and press Enter 3 76 Operation screen 4 On the screen shown in 3 77 select Go and press Enter 3...

Page 82: ...s shown in 3 78 3 78 Advanced screen 6 On the screen shown in 3 79 select the disk to be added set its status to Enabled select Apply Changes and press Enter 3 79 Add Drives screen 7 On the screen sho...

Page 83: ...3 46 3 80 Confirming the migration 8 Complete the disk adding and press Enter as shown in 3 81 3 81 Selecting OK 9 Enter the screen shown in 3 82 select Start Operation and press Enter...

Page 84: ...3 47 3 82 Start Operation screen 10 Complete the RAID level migration as shown in 3 83 3 83 Selecting OK 11 View the current migration progress as shown in 3 84...

Page 85: ...be reused to configure RAID This function is commonly used for disks in Unconfigured Bad mode 1 Switch the disk mode in Make unconfigured good mode For details see section 3 2 2 1 Switching the Disk...

Page 86: ...ard configuration screen 3 On the screen shown in 3 86 select Installation and press Enter 3 86 Selecting Manage Foreign Configuration 4 On the screen shown in 3 87 select Clear Foreign Configuration...

Page 87: ...3 87 Selecting Clear Foreign Configuration 5 On the screen shown in 3 88 set Confirm to Enabled select Yes and press Enter 3 88 Confirming the erase 6 Complete the RAID information erase as shown in...

Page 88: ...nnect the USB flash drive with the RAID card firmware to the server It should be noted that the level of directory of the RAID card firmware file on the USB flash drive cannot exceed 3 Otherwise the s...

Page 89: ...RAID card configuration screen 3 On the screen shown in 3 91 select Firmware Update and press Enter 3 91 Selecting Firmware Update 4 Select the directory for firmware upgrade and press Enter as shown...

Page 90: ...ectory for firmware upgrade 5 Select the firmware version file to be upgraded and press Enter as shown in 3 93 3 93 Selecting the firmware version file to be upgraded 6 On the screen shown in 3 94 sel...

Page 91: ...set Confirm to Enabled select Yes and press Enter The RAID card firmware starts to upgrade This process may take 1 to 2 minutes Please wait patiently Caution To avoid a RAID card failure do not perfor...

Page 92: ...3 55 3 95 Confirming the upgrade 8 On the screen shown in 3 96 press Enter to restart the system The upgrade is complete 3 96 Selecting OK...

Page 93: ...Storage to Legacy and press F10 to save the settings The server will automatically restart Then re enter the BIOS to complete the operation For details see the H3C Uniserver T1100 G3 Server Greenlow P...

Page 94: ...een the following two disk modes UG The physical disk is normal and can be used to configure as a RAID or hot spare disk Failed The physical disk has residual RAID information and must be manually cle...

Page 95: ...3 58 3 99 Selecting the disk to be switched 2 On the screen shown in 3 100 select Make unconfigured good and press Enter to complete the disk mode switching 3 100 Selecting Make unconfigured good...

Page 96: ...Configuring a RAID 1 Press F2 on the VD Mgmt screen select Create Virtual Drive and press Enter as shown in 3 101 3 101 Selecting Create Virtual Drive 2 Set the RAID level and press Enter as shown in...

Page 97: ...3 60 3 102 Setting the RAID level 3 Select the disk to be configured for RAID and press Enter as shown in 3 103 3 103 Selecting the disk...

Page 98: ...set Size and Name accordingly select Advanced and press Enter 3 104 Setting the RAID name and capacity 5 On the screen shown in 3 105 perform the corresponding settings see 3 3 for parameter descript...

Page 99: ...3 62 3 105 Setting advanced parameters 6 On the screen shown in 3 106 select OK and press Enter 3 106 Confirming the creation...

Page 100: ...press Enter to complete the RAID configuration 3 107 Confirming the creation 8 Enter the screen shown in 3 108 select the RAID to be viewed and press Enter Then you can view the details of the RAID i...

Page 101: ...k as required Note Hot spares are used only for redundant RAID levels The capacity of the hot spare must be larger than the capacity of a single member disk of the RAID contributed to that RAID Only d...

Page 102: ...lecting a disk to be configured as a global hot spare disk 2 Select Make Global HS and press Enter to complete the configuration of the global hot spare disk on screen shown in 3 110 3 110 Selecting M...

Page 103: ...e following methods to configure a dedicated hot spare disk for a specified RAID Method 1 During RAID configuration directly configure a hot spare disk Method 2 During RAID configuration no hot spare...

Page 104: ...eate Virtual Drive 2 Set RAID parameters select a disk select Advanced and press Enter as shown in 3 113 3 113 Selecting the disk 3 Set related parameter select Configure HotSpare select OK and press...

Page 105: ...3 68 3 114 Selecting Configure HotSpare 4 On the screen shown in 3 115 select OK and press Enter 3 115 Selecting OK 5 On the screen shown in 3 116 select OK and press Enter...

Page 106: ...to be configured as the dedicated hot spare disk select OK and press Enter 3 117 Setting the dedicated hot spare disk For method 2 the specific procedure is as follows 1 Select the disk group for whic...

Page 107: ...ed hot spare disk is to be configured 2 On the screen shown in 3 119 select Manage Ded HS and press Enter 3 119 Selecting Manage Ded HS 3 On the screen shown in 3 120 select the disk to be configured...

Page 108: ...n is used to delete RAID that is damaged or hard to meet the requirements 1 As shown in 3 121 select the logical disk to be deleted on the VD Mgmt screen and press F2 3 121 Selecting the logical disk...

Page 109: ...3 72 3 122 Selecting Delete VD 3 On the screen shown in 3 123 select YES and press Enter to complete the RAID deletion 3 123 Confirming the deletion...

Page 110: ...a space of the disk so that it can be used by the operating system 1 As shown in 3 124 select the logical disk to be initialized on the VD Mgmt screen and press F2 3 124 Selecting the disk to be initi...

Page 111: ...tialized to write data and the rest of the space is initialized on the background Full Ground Initialization FGI All the space of the RAID is initialized Data can be written only after the initializat...

Page 112: ...sk This function is used to delete internal data of the disk including erasing physical disk data and logical disk data Erasing data from a physical disk 1 As shown in 3 127 select the physical disk f...

Page 113: ...3 76 3 127 Selecting the physical disk for which the data will be erased 2 On the screen shown in 3 128 select the erase mode use the default mode Simple and press Enter 3 128 Selecting the erase mode...

Page 114: ...om the physical disk 3 129 Confirming the erase Note To avoid disk failure do not perform other operations while erasing data from a physical disk Erasing data from a logical disk 1 As shown in 3 130...

Page 115: ...3 78 3 130 Selecting the logical disk for which the data will be erased 2 On the screen shown in 3 131 select the erase mode use the default mode Simple and press Enter 3 131 Selecting the erase mode...

Page 116: ...he erase 7 Expanding the RAID Capacity This function is used to expand the RAID capacity to increase the availability of RAID You can expand the RAID capacity of the RAID card by setting the percentag...

Page 117: ...3 80 3 133 Selecting the logical disk to be expanded 2 On the screen shown in 3 134 select Expand VD size and press Enter 3 134 Selecting Expand VD size...

Page 118: ...ual RAID information in the disk so that the disk can be reused to configure RAID This function is commonly used for disks in Failed mode 1 Switch the disk mode in Make unconfigured good mode For deta...

Page 119: ...3 82 3 136 Selecting Foreign Config Clear 3 In the displayed dialog box shown in 3 137 select OK and press Enter to complete the clearing of residual RAID information 3 137 Confirming the erase...

Page 120: ...factory format state It is required to directly configure a RAID LSI 9361 8i 1G B RAID card without any tools 4 2 Configuration Purpose In UEFI boot mode configure three disks attached to the RAID LSI...

Page 121: ...iguration screen select Configuration Management and press Enter as shown in 4 2 4 2 RAID card configuration screen 4 Enter the screen shown in 4 3 select Create Virtual Drive and press Enter 4 3 Sele...

Page 122: ...alog box select RAID 5 and press Enter 4 4 Setting the RAID level 6 Select Select Drives From set the disk capacity source of the RAID and press Enter as shown in 4 5 4 5 Setting the disk capacity sou...

Page 123: ...electing Select Drives 8 Select the disk to be configured for RAID and press Enter as shown in 4 7 Enabled indicates that the disk is selected Select Apply Changes and press Enter twice 4 7 Selecting...

Page 124: ...AID name use the default configuration for other parameters select Save Configuration and press Enter 4 8 Setting RAID parameters 10 On the screen shown in 4 9 set Confirm to Enabled select Yes and pr...

Page 125: ...card configuration screen 4 10 Completing the RAID configuration 12 On the RAID card configuration screen select Virtual Drive Management and press Enter as shown in 4 11 4 11 RAID card configuration...

Page 126: ...4 7 4 12 Virtual Drive Management screen 14 On the screen shown in 4 13 select View Associated Drives and press Enter to view the RAID details 4 13 Selecting View Associated Drives...

Page 127: ...a hot spare disk directly replace the failed disk with a new disk The RAID card automatically rebuilds the data 5 2 Logical Disk Failure of a RAID Card The management tool can display RAID status info...

Page 128: ...the figure to the system can increase the total storage capacity but it will not affect the efficiency of read write R W operations Data can be transferred only to one physical disk at a time 6 1 Tra...

Page 129: ...fferent disks As shown in 6 3 each data unit is called a data block indicated by Bn in the figure and several adjacent data blocks form a strip indicated by Sn in the figure and are distributed in all...

Page 130: ...sks each of which can be different in size Note that each logical disk in the array is spread across all the physical disks in the array Logical disks can be extended to multiple ports on the same arr...

Page 131: ...Since each logical disk in the array may use different fault tolerance methods each logical disk will be affected differently RAID 0 cannot tolerate any disk failure If any physical disk in the array...

Page 132: ...tages of RAID 0 If the physical disk fails all the data on the logical disk will be lost Online spare disks cannot be used If you need to back up data you can only back up the data to an external disk...

Page 133: ...Px y in the figure in a RAID 5 Based on the user data written to all other data blocks in the strip this parity data is calculated strip by strip Parity data blocks are evenly distributed across each...

Page 134: ...e preserved if two disks fail Each set of parity data requires the same storage space as a physical disk 6 8 RAID 6 1 Application Scenarios RAID 6 is applicable for scenarios where data loss cannot be...

Page 135: ...performance and data protection are more important than the cost of physical disks 2 Advantages of RAID 10 Among all RAIDs RAID 10 has the second highest read performance As long as there is not a com...

Page 136: ...e is higher than that of RAID 5 The fault tolerance performance of RAID 50 is higher than that of RAID 0 or RAID 5 As long as the failed disks are in different parity groups up to n physical disks can...

Page 137: ...ID 6 The fault tolerance performance of RAID 60 is higher than that of RAID 0 or RAID 6 As long as the no more than two disks in the same parity group fail up to 2n physical disks can fail where n is...

Page 138: ...ggested RAID Level Cost Fault tolerant RAID 6 I O performance RAID 5 If fault tolerance is not required RAID 0 is recommended I O performance Cost RAID 5 If fault tolerance is not required RAID 0 is r...

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