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B.3

RAID 1 Arrays

A RAID 1 array is built from two disk drives, where one disk drive is a mirror of the other (the same data is
stored on each disk drive). Compared to independent disk drives, RAID 1 arrays provide improved
performance, with up to twice the read rate and an equal write rate of single disks. However, capacity is
only 50 percent of independent disk drives.

If the RAID 1 array is built from different- sized disk drives, the free space, drive segment size is the size of
the smaller disk drive, as shown in this figure.

Disk Drive 2

Disk Drive 1

400 GB

Drive Segment Size
(Smallest Disk Drive)

Disk Drive 1

Disk Drive 2

Disk Drives in Logical Drive

RAID 1 Logical Drive = 250 GB

1 – 250

1 – 250

Unused Space = 150 GB

250 GB

B.4

RAID 1 Enhanced Arrays

A RAID 1 Enhanced (RAID 1E) array—also known as a striped mirror—is similar to a RAID 1 array except that
data is both mirrored and striped, and more disk drives can be included. A RAID 1E array can be built from
three or more disk drives.

In this example, the large bold numbers represent the striped data, and the smaller, non-bold numbers
represent the mirrored data stripes.

Disk Drive 2

400 GB

400 GB

400 GB

Disk Drive 3

Disk Drive 2

Disk Drive 1

Disk Drive 3

3

1

2

6

4

5

Disk Drives in Logical Drive

RAID 1E Logical Drive = 600 GB

Disk Drive 1

50

Microsemi Proprietary and Confidential. Installation and User's Guide Revision 5

Understanding RAID

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Содержание Adaptec ASR-81605Z

Страница 1: ...Installation and User s Guide Serial Attached SCSI RAID Controllers Released January 2019...

Страница 2: ...4 Add support for 8405E and 8805E SAS RAID controllers October 2016 3 Update supported OSes Installing driver on Solaris and Technical Specification September 2016 2 Update supported OSes add backup...

Страница 3: ...RPOSE AND NON INFRINGEMENT SHALL A HAVE NO GREATER DURATION THAN 3 YEARS FROM THE DATE OF PURCHASE B TERMINATE AUTOMATICALLY AT THE EXPIRATION OF SUCH PERIOD AND C TO THE EXTENT PERMITTED BY LAW BE EX...

Страница 4: ...one or more of the following measures Reorient or relocate the receiving antenna Increase the separation between equipment and receiver Connect the equipment to an outlet on a circuit different from t...

Страница 5: ...a Class B digital device pursuant to the Australian New Zealand standard AS NZS 3548 set out by the Spectrum Management Agency Canadian Compliance Statement This Class B digital apparatus meets all re...

Страница 6: ...Class B electromagnetic wave suitability equipment and to be used mainly at home and it can be used in all areas 3 Microsemi Proprietary and Confidential Installation and User s Guide Revision 5 Regul...

Страница 7: ...2 4 2 2 Cables 13 4 3 Replacing the Full Height Bracket with a Low Profile Bracket 13 4 4 Installation Options 14 4 5 Basic Installation Steps 15 4 5 1 Installing with an Operating System 15 4 5 2 Ins...

Страница 8: ...Storage Manager 39 10 2 About the Microsemi Adaptec RAID Controller Configuration Utility 39 10 3 About the Microsemi Adaptec RAID Configuration Utility 39 10 4 About the Adaptec Flash Utility 40 10...

Страница 9: ...5 Secure Erasing Disk Drives 60 C 2 6 Uninitializing Disk Drives 61 C 2 7 Managing Global Hot Spares 61 C 3 Using the ARC Utility to Modify Controller Settings 61 C 3 1 Opening the Controller Setting...

Страница 10: ...ESD 75 Appendix F Technical Specifications 76 F 1 Environmental Specifications 76 F 2 DC Power Requirements 76 F 3 Current Requirements 76 F 4 Supercapacitor Ratings 76 vii Microsemi Proprietary and C...

Страница 11: ...torage Manager in the remainder of this guide or the other utilities described in this guide Many of the terms and concepts referred to in this guide are known to computer users by multiple names This...

Страница 12: ...tec RAID Controller Configuration ARCCONF command line utility see About the Microsemi Adaptec RAID Controller Configuration Utilityconcept to perform basic array and configuration management function...

Страница 13: ...formation One of these operating systems Microsoft Windows Server 2019 64 bit Windows Server 2016 64 bit Windows Server 2012 R2 64 bit Windows Server 2012 64 bit Windows Server 2008 R2 SP1 64 bit Wind...

Страница 14: ...Note Not all features are supported by all controllers For more information see the maxView Storage Manager User s Guide Support for RAID 0 RAID 1 RAID 5 RAID 10 RAID 50 and simple volumes Support fo...

Страница 15: ...er Firmware You can upgrade the firmware on your Microsemi Adaptec RAID controller using the Adaptec Flash Utility or from the computer s uEFI BIOS Follow the instructions in Using the Adaptec Flash U...

Страница 16: ...r port Data transfer rate 4 Phys Unified Serial Ports 1024 MB DDR3 Standard cache 1 mini SAS HD x4 SFF 8643 Connectors internal 4 direct attached or up to 256 with expanders Maximum number of disk dri...

Страница 17: ...patibility x8 PCIe bus width 12 Gb s per port Data transfer rate 4 Phys Unified Serial Ports 1024 MB DDR3 Standard cache 1 mini SAS HD x4 SFF 8643 Connectors internal 4 direct attached Maximum number...

Страница 18: ...r port Data transfer rate 8 Phys Unified Serial Ports 1024 MB DDR3 Standard cache 2 mini SAS HD x4 SFF 8643 Connectors internal 8 direct attached or up to 256 with expanders Maximum number of disk dri...

Страница 19: ...compatibility x8 PCIe bus width 12 Gb s per port Data transfer rate 8 Phys Unified Serial Ports 1024 MB DDR3 Standard cache 2 mini SAS HD x4 SFF 8643 Connectors internal 8 direct attached Maximum numb...

Страница 20: ...SAS HD x4 SFF 8643 Connectors internal 2 mini SAS HD x4 SFF 8644 Connectors external 16 direct attached or up to 256 with expanders Maximum number of disk drives 8885Q Up to 8 solid state drives 2TB...

Страница 21: ...r rate 16 Phys Unified Serial Ports 1024 MB DDR3 Standard cache 4 mini SAS HD x4 SFF 8643 Connectors internal 16 direct attached or up to 256 with expanders Maximum number of disk drives 81605ZQ Up to...

Страница 22: ...oved performance and uses parity data to provide redundancy see RAID 5 ArraysRAID RAID 5arrays RAID 5 RAID 10 Array Built from two or more equal sized RAID 1 arrays stripes and mirrors data across mul...

Страница 23: ...your Microsemi Adaptec RAID controller into a low profile computer cabinet replace the original full height bracket with the low profile bracket included in your distribution kit The full height brac...

Страница 24: ...e that looks like a spacer see Figure 3 Be sure to install the bracket with the flat side against the controller PCB and the raised side facing away from the PCB Figure 3 Raised side of bracket Front...

Страница 25: ...n Operating System installation driver and operating systemdriver and operating system installationoperating system installation 5 Install maxView Storage Manager and begin to manage your data storage...

Страница 26: ...ero maintenance cache protection with batteryless backup ZMCP ZMCP uses flash memory and a supercapacitor module to protect the cache without a battery Follow one of these sets of instructions To inst...

Страница 27: ...internal disk drives close your computer cabinet reattach the power cord then continue with Connecting External Devices installation external devicesexternal devicescontrollers connecting external dev...

Страница 28: ...bottom Attach the mounting clip to the front of the mounting plate with four 4 Phillips screws The large friction clip should face the front of the mounting plate Mounting clip Recessed side Large fr...

Страница 29: ...er by inserting the connector into the socket on the flash module daughterboard as shown in the figure below The connector attaches to the socket in only one direction Use the included extender cable...

Страница 30: ...ect both SAS and SATA disk drives to your SAS controller we recommend that you do not combine SAS and SATA disk drives within the same array See What is SAS SAS description for more information You ha...

Страница 31: ...ives SSDs To connect a Solid State Drive to your controller you can use a direct attached connection or a backplane connection as required If your server does not have a standard 2 5 inch drive tray y...

Страница 32: ...e been installed and connected close your computer cabinet reattach the power cord then continue with Connecting External Devices installation external devicesexternal devicescontrollers connecting ex...

Страница 33: ...roller driver and an operating system onto a bootable array continue with Creating a Bootable Array If you are completing a standard installation onto an existing operating system continue with Instal...

Страница 34: ...system is installed You can create an array using any of these tools Microsemi Adaptec RAID Configuration Utility ARC BIOS based menus and keyboard navigation see the following section maxView Storag...

Страница 35: ...e instructions in the following table Entry or Selection Property Line Select RAID 5 then press Enter Array Type Type a name then press Enter Array Label Press Enter then press Enter again to use the...

Страница 36: ...want to configure The Boot menu opens in a shell window 2 Select Launch maxView from the menu After a minute or so the maxView Storage Manager login screen opens in a browser window 3 Enter root root...

Страница 37: ...iew Storage Manager as a full software application see the maxView Storage Manager User s Guide 10 Continue with the following section 6 3 Making Your Array Bootable Use the ARC Utility to make the ar...

Страница 38: ...ser window then type start microsemi com in the address bar 2 Select your RAID controller family and controller model 3 Select your operating system version then select the appropriate driver from the...

Страница 39: ...allation 8 Continue with Managing Your Storage Spacetopic 7 4 Installing with Red Hat Linux or CentOS Note You will need the Installation DVD or equivalent virtual media iso image for your operating s...

Страница 40: ...tu Linux Note You need the Ubuntu installation DVD or equivalent virtual media iso image to complete this task You must have root privilege to install the driver image To install the Microsemi Adaptec...

Страница 41: ...rosoft PowerShell You can download the ESXi Customizer tool ESXi Customizer PS v2 5 ps1 from https www v front de p esxi customizer ps html and other locations on the Web Note Be sure to install the p...

Страница 42: ...XenServer driver iso image to a writeable CD USB driver disks are not supported for XenServer see Creating a Driver Diskdriver diskinstallation creating a driver disk on page 28 You will be prompted...

Страница 43: ...in the address bar 2 Select your RAID controller family and controller model 3 Select your operating system version then select the appropriate driver from the list Note For Linux OSs the list of driv...

Страница 44: ...nux 1 Insert and mount the driver disk assuming the USB drive is dev sda1 mount dev sda1 mnt usb 2 Install the module RPM rpm ivh mount point xxx yyy rpm where mount point is the mount point on the Li...

Страница 45: ...ve the old driver from a VMware system esxcli software vib list grep i aacraid list driver packages esxcli software vib remove vibname scsi aacraid maintenance mode remove package 2 Using a remote cop...

Страница 46: ...Linux scp to copy the driver to tmp aacraid scp mnt sda1 linux driver citrix aacraid 1 2 1 xxxxx xen 6 x rpm root xen server ip tmp aacraid 2 Install the driver module rpm rpm ivh tmp aacraid citrix a...

Страница 47: ...ll deb 4 After the DKMS install is done the system needs to be rebooted for the new driver to take effect apt get install linux headers uname r Note When the Ubuntu Linux kernel is updated then DKMS w...

Страница 48: ...4 21 4 ELsmp m aacraid v 1 2 1 XXXXX dkms install k 2 4 21 4 ELsmp m aacraid v 1 2 1 XXXXX 3 Make a driver disk from a set of built drivers dkms mkdriverdisk k 2 4 21 4 ELBOOT 2 4 21 4 ELsmp 2 4 21 4...

Страница 49: ...connected to monitors and therefore won t require the graphical user interface you can choose to run the Agent only on those systems instead of the full application For more information refer to the m...

Страница 50: ...o use maxView Storage Manager to update the controller firmware See the maxView Storage Manager User s Guide for more information 10 5 Which Utility Should I Use To create a bootable array we recommen...

Страница 51: ...the Readme for compatibility issues and known problems If you are still unable to resolve a problem you can find additional troubleshooting information and direction at www adaptec com or the Support...

Страница 52: ...y Then designate a new hot spare to protect the arrays on that controller If copyback is enabled Data is automatically moved back to its original location once the controller detects that the failed d...

Страница 53: ...rive failures depending on which disk drives fail 11 4 6 Failed SSD in maxCache Device Because the maxCache Device is a redundant logical device comprised of SSDs only it is rebuilt automatically when...

Страница 54: ...se of SAS expanders See SAS Expander ConnectionsSAS expander connectionsexpander connections Note Although you can use both SAS and SATA disk drives in the same SAS domain see SASExpanderConnectionsSA...

Страница 55: ...ical link between SAS devices is from phy to phy rather than port to port a port is more of a virtual concept different from what is normally considered a port on other types of RAID controllers and s...

Страница 56: ...nnections The mini SAS connectors are smaller than the standard SAS internal and external connectors Mini SAS connectors support single and multilinks with the ability to scale to future speed needs F...

Страница 57: ...ces is limited to the number of slots available on the backplane Some backplanes support daisy chain expansion to other backplanes allowing you to connect multiple enclosures to a single SAS card in a...

Страница 58: ...MB sec per phy when in half duplex mode Maximum speed 320 MB sec shared by all devices on the bus Supports SATA and SAS disk drives simultaneously Supports SCSI devices only More than 100 disk drives...

Страница 59: ...ndant Arrays RAID 0 An array with RAID 0 includes two or more disk drives and provides data striping where data is distributed evenly across the disk drives in equal sized sections However RAID 0 arra...

Страница 60: ...ve Disk Drive 1 Disk Drive 2 Disk Drives in Logical Drive RAID 1 Logical Drive 250 GB 1 250 1 250 Unused Space 150 GB 250 GB B 4 RAID 1 Enhanced Arrays A RAID 1 Enhanced RAID 1E array also known as a...

Страница 61: ...and two 400 GB disk drives can create two mirrored drive segments of 250 GB for a total of 500 GB for the array as shown in this figure Unused Space 150 GB Disk Drive 1 Disk Drive 2 Disk Drive 3 Disk...

Страница 62: ...ment size is limited to the size of the smallest disk drive in the array For instance an array with two 250 GB disk drives and two 400 GB disk drives can contain 750 GB of stored data and 250 GB of pa...

Страница 63: ...ta and increases read and write speeds However capacity is reduced by two disk drives worth of space which is for parity data and spare data In this figure S represents the distributed spare P represe...

Страница 64: ...e three 250 GB disk drives and three 400 GB disk drives comprise two equal sized RAID 5 arrays with 500 GB of stored data and 250 GB of parity data The RAID 50 array can therefore contain 1000 GB 2 x...

Страница 65: ...ve 1 Disk Drive 2 Disk Drive 3 Disk Drive 4 250 GB 250 GB 400 GB 400 GB Drive Segment Size Smallest Disk Drive Disk Drive 2 Disk Drive 3 Disk Drive 4 Disk Drive 1 Unused Space 150 GB Disk Drives in Lo...

Страница 66: ...ge Redundancy RAID Level 2 No 100 No RAID 0 2 No 50 Yes RAID 1 3 No 33 Yes RAID 1 ADM 3 No 50 Yes RAID 1E 4 No 50 Yes RAID 10 6 No 33 Yes RAID 10 ADM 3 No 67 94 Yes RAID 5 4 Yes 50 88 Yes RAID 5EE 6 N...

Страница 67: ...he screen in a uniform way In the uEFI HII interface access to the RAID controller configuration options is provided through the computer s standard BIOS How you access the BIOS varies depending on th...

Страница 68: ...sdisk drives initializinginitializing disk drives for more information Note To create a hybrid array that leverages the performance benefits of the SSDs in your system you must select an equal number...

Страница 69: ...nagement The duration of inactive state of the array drive after which it is slowed down to low power mode This is an optional setting Slow Down Drive After Note The disk drive should support low powe...

Страница 70: ...disk drive all data on that disk drive is completely and irretrievably eradicated Secure erase performs three distinct writing passes to the disk drive being erased it does not just write zeros Perfor...

Страница 71: ...global hot spare is not assigned to a specific logical drive It protects any logical drive on the controller except RAID 0 logical drives You can create and delete global hot spares even if no arrays...

Страница 72: ...ble device Runtime BIOS When enabled the controller automatically rebuilds an array when a failed disk drive is re placed When disabled the array must be rebuilt manually Automatic Failover When enabl...

Страница 73: ...Drive not present X X On X On Drive present no activity X X 4 Hz Blink X 4 Hz Blink Drive present activ ity Off 4 Hz Blink X 4 Hz Blink 4 Hz Blink Locate Identi fy On Off X On X Fail 1 Hz Blink Off X...

Страница 74: ...ce latency and accelerate performance When set to Simple Volume mode you can create Simple Volumes only up to a maximum of 128 volumes no other RAID types are supported Note Before you can change into...

Страница 75: ...ogical drive Forcing a logical drive online or offline Changing the cache page size To enable controller cache preservation 1 Start the ARC utility in uEFI mode see Ctrl A or uEFI HII Unified Extensib...

Страница 76: ...ed and super capacitor is charged Ready Green backup feature not enabled in firmware Invalid Not Supported Firmware could not retrieve backup unit information or configu ration due to hardware issues...

Страница 77: ...on see Direct attach ConnectionsSAS direct attach connectionsdirect attach connections Storage Enclosure Processor SEP managed devices The connection is determined by an active backplane Box0 enclosur...

Страница 78: ...set and also provides cable management functions You should update the CPLD if the version running on the controller is lower than the version in flash Note CPLD Update is for advanced users only It i...

Страница 79: ...e Event Log The BIOS based event log records all firmware events such as configuration changes array creation and boot activity Some events are not stored indefinitely the event log is cleared of any...

Страница 80: ...SYS Does not support DOS extenders installed in memory such as EMM386 SYS and DOS4GW D 2 Before You Begin 1 Obtain the firmware see the following section 2 Create firmware disk see Creating the Firmw...

Страница 81: ...ash image Reads the contents of a RAID controller s flash components and saves the data to a UFI file which you can use to restore a RAID controller s flash if required Verify flash image Reads the co...

Страница 82: ...ntroller IDs representing the set of RAID controllers on which to perform the specified command The default is 0 if the computer has multiple RAID controllers the AFU defaults to controller 0 unless y...

Страница 83: ...s whether they match After using the VERIFY command you must restart the computer The command syntax for the VERIFY command is as follows AFU VERIFY C Controller ID D UFI File Path This example shows...

Страница 84: ...d type AFU followed by a command see AFU Commands and any switches you want 6 Update the flash using the instructions suitable for your requirements To update a single RAID controller AFU UPDATE C con...

Страница 85: ...pment end of the strap to an unpainted metal surface on the chassis Avoid touching the controller against your clothing The wrist strap protects components from ESD on the body only Handle the control...

Страница 86: ...tion Bus Type 50 mV peak to peak max Ripple and noise PCIe 3 3 V 9 12 V 8 DC voltage PCIe F 3 Current Requirements Typical Current Controller Model 0 1 A at 3 3 VDC 1 2 A at 12 0 VDC Microsemi Adaptec...

Страница 87: ...ule AFM 700 Specification 1C Charge rate 1C Discharge rate 0 C to 55 C Operating temperature 20 C to 70 C Storage temperature 77 Microsemi Proprietary and Confidential Installation and User s Guide Re...

Страница 88: ...ing iv 24 27 59 C cards See controllers CD ROM Boot Support setting 62 checking cache preservation status 66 checking flash backup unit vi 66 command line interface flash utility vi 71 command line ut...

Страница 89: ...re upgrades iv 5 flashing controllers v 43 floppy disks for firmware update vi 70 formatting disk drives vi 66 H hard disk 1 hard disk drive 1 hard drive See disk drive HBA mode vi 61 HDA mode 43 HDA...

Страница 90: ...ectors 46 narrow ports 45 phys v 45 SAS continued ports v 44 45 SAS address v 45 SAS cards 44 SAS devices 44 SAS domain 47 terminology v 44 transceivers v 44 wide connectors 46 wide ports 45 SAS devic...

Страница 91: ...river installation v 33 OS installation v 29 X XenServer v 32 OS installation v 32 Z zero maintenance cache protection iv 4 16 17 81 Microsemi Proprietary and Confidential Installation and User s Guid...

Страница 92: ...proprietary to Microsemi and Microsemi reserves the right to make any changes to the information in this document or to any products and services at any time without notice Microsemi Headquarters One...

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