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A-12

Adaptec Storage Manager Pro User’s Guide

Stripe Set of RAID 5 Sets (RAID 0/5)

RAID technology allows you to create arrays that contain other
arrays. (Also known as multilevel arrays.) A

stripe set of RAID 5 sets

is an array made up of two or more equal-sized RAID 5 sets. The
data in a stripe set of RAID 5 sets is redundant.

Figure A-8 represents a stripe set of RAID 5 sets created from two
equal-sized RAID 5 sets (A and B) and striped across six drives.
Each RAID 5 set is made up of three equal-sized partitions on three
separate drives. The free space of the larger drive is not used.

Figure A-8. Stripe set of RAID 5 sets

The stripe set of RAID 5 sets is the top-level array, and RAID 5 sets A
and B are the underlying arrays.

Other types of multilevel arrays exist, though the stripe set of mirror
sets offers the best redundancy of any array type.

❒

Partition A

Partition A

Partition B

Partition B

Partition C

RAID 5 Set A
8 GB

16 GB

Stripe Set of RAID 5 Sets

Chunks

Chunks 1,3,5,7...

RAID 5 Set B
8 GB
Chunks 2,4,6,8...

Drive 1

Partition C

Drive 2

Drive 3

Drive 4

Drive 5

Drive 6

1,2,3,4,5,6,7,8,9...

4 GB

4 GB

4 GB

4 GB

4 GB

4 GB

Free Space

*P = Parity

Chunks

Chunks

Chunks

Chunks

Chunks

Chunks

1,7,P*,13...

P*,6,12,P*...

4,P*,10,16...

2,8,P*,14...

P*,5,11,P*...

3,P*,9,15...

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Содержание 2110S - SCSI RAID Controller

Страница 1: ...R Adaptec Storage Manager Pro v1 11 User s Guide...

Страница 2: ...ntries used under license All other trademarks are the property of their respective owners Changes The material in this document is for information only and is subject to change without notice While r...

Страница 3: ...s provided you reproduce Adaptec s copyright notice and any proprietary legends 2 Restrictions You may not distribute copies of the Software to others You may not post or otherwise make available the...

Страница 4: ...OCUMENTATION THE FOREGOING STATES THE SOLE AND EXCLUSIVE REMEDIES ADAPTEC AND ITS LICENSORS WILL PROVIDE FOR BREACH OF WARRANTY EXCEPT FOR THE FOREGOING LIMITED WARRANTY ADAPTEC AND ITS LICENSORS MAKE...

Страница 5: ...You further agree that it is the complete and exclusive statement of the agreement between Adaptec and you and supersedes any proposal or prior agreement oral or written and any other communication b...

Страница 6: ......

Страница 7: ...2000 or Windows 95 98 1 5 Starting Storage Manager Pro on NetWare 1 6 Starting Storage Manager Pro on Linux FreeBSD 1 7 Understanding the Dashboard 1 8 System Commands 1 9 General Commands 1 9 Changi...

Страница 8: ...4 Saving and Restoring a Configuration to a File 3 5 Deleting an Array 3 7 Viewing Array Properties 3 8 4 Managing Controllers on Remote Systems Understanding Remote Access 4 2 Setting Up Remote Acces...

Страница 9: ...ng Array Creation 6 6 Terminating a Task 6 6 Understanding the Details Pane Status Column 6 6 Setting Up Event Notification 6 7 Defining and Modifying Notification E mail Settings 6 8 Adding Notificat...

Страница 10: ...tery 9 3 Testing the Alarm on the Controller 9 5 Viewing Controller Properties 9 6 Viewing Channel Properties 9 7 10 Managing Enclosures Understanding Enclosures 10 1 Viewing Enclosure Status 10 2 Tur...

Страница 11: ...rror Set RAID 1 A 9 RAID 5 Set A 10 Stripe Set of Mirror Sets RAID 0 1 A 11 Stripe Set of RAID 5 Sets RAID 0 5 A 12 B Choosing Your Array Type If You Are New to Arrays B 2 If You Have Experience with...

Страница 12: ...Storage Manager Pro also allows you to perform all these functions for all systems on your network that are running Storage Manager Pro This gives you the power you need to manage all your storage dev...

Страница 13: ...nt Disks RAID Conventions This User s Guide uses several typographical conventions to help explain how to use Storage Manager Pro Getting Online Help Online Help is available at any time from the Help...

Страница 14: ...or message check that the service or daemon is running Windows 95 98 Press Ctrl Alt Del simultaneously In the Close Program window you should see ASMProServer in the list of running programs and the S...

Страница 15: ...click Start NetWare From the system console type the following search add sys adaptec SMPro asmpsrvr ncf The commands are not case sensitive You only need to type the first line the search command the...

Страница 16: ...rage Manager Pro from the Start menu just like other Windows applications If you want to display Storage Manager Pro in a language other than English you must click Start point to Settings click Contr...

Страница 17: ...it From the System Browser window you can access the array creation and related functions If you have already set up remote access to other systems only the Storage Manager Pro Dashboard appears From...

Страница 18: ...pplications If you want to display Storage Manager Pro in a language other than English you must set an environment variable to the correct language Here are example commands for the sh bash ksh shell...

Страница 19: ...You must shut down the ASMProServer daemon before you shut down your system or uninstall Storage Manager Pro During normal shutdown the daemon will be shut down automatically To shut down the daemon m...

Страница 20: ...Understanding the System Browser on page 1 12 Event Browser Allows you to view events in the event log on the selected system See Viewing Events on page 6 2 General Commands These commands apply to S...

Страница 21: ...atus View This option shows a tab for each status OK Warning and Critical View systems by status by selecting the appropriate tab Detail View This option shows details rather than icons for each syste...

Страница 22: ...stem you view You can select a system by name or by IP Address You can also select a group of systems to view by using the following wildcard operators is a string wildcard that matches 0 or more char...

Страница 23: ...em Browser you can Create and reconfigure arrays See Chapter 2 Creating an Array and Chapter 3 Managing Arrays Add and remove spares See Chapter 7 Managing Spares Monitor task progress and controller...

Страница 24: ...to move the splitter bar to its extreme upper or lower position Details pane Shows the details about the device or array selected in the top part of the window Refer to the Online Help for detailed in...

Страница 25: ...g with existing arrays When you select a device or array information related to that device or array is displayed in the Details pane In the figure on page 1 15 the controller is selected The Devices...

Страница 26: ...ate selected item with devices in opposite pane Here they show the disk drives associated with the selected array Array type icon and array name Operating system specific reference handle for how you...

Страница 27: ...Icon Device or Array Type System Directory Manager Controller Channel Enclosure Disk drive Uninitialized disk drive Volume set Stripe set RAID 0 Mirror set RAID 1 RAID 5 set Stripe set of mirror sets...

Страница 28: ...scrolling Whether the Command Buttons pane is displayed Allows you to show or hide the Command Buttons pane The functions are still available when you right click a device or array Uninstalling Storag...

Страница 29: ...Copy the contents of the Netware SMPro directory from the CD to SYS smpro If the files are already on the server you can skip copying the files For information on copying from a client you must attac...

Страница 30: ...low these steps 1 Shut down the Storage Manager Pro service by typing the following StopASMProServer 2 Uninstall by typing the following INSTDIR UninstallerData Uninstall where INSTDIR is the full pat...

Страница 31: ...talled and running on the remote system See Chapter 4 Managing Controllers on Remote Systems You can create an array two different ways depending on whether you want to customize the array creation se...

Страница 32: ...Array Type For information about creating a bootable array refer to your controller s Installation Guide Creating an Array Using the Wizard The Create Array Wizard guides you through determining the b...

Страница 33: ...name depends on your controller The system only allows you to type as many characters as your controller permits That may be as few as 15 characters If you leave Array Name field blank the array will...

Страница 34: ...er window You can begin using the array while Storage Manager Pro completes the Build process The Build task may take several hours to complete depending on the array type size of the array and I O lo...

Страница 35: ...For assistance making the selection see Appendix B Choosing Your Array Type The Array Information section of the dialog box displays information about the size of the array you are creating or proble...

Страница 36: ...at they are new drives for this array See Understanding the Selected Drive Icons on page 2 8 See the Array Information section of the dialog box for information about how much space will be used on ea...

Страница 37: ...om a legacy drive When using a legacy drive make sure you copy from the legacy disk drive to a disk drive that is at least as big as the legacy drive Caution You will lose all original data residing o...

Страница 38: ...ncel the array creation process stops To leave this dialog box and continue to create an array click Back Understanding the Selected Drive Icons When you select drives for your array in the Create Arr...

Страница 39: ...2 9 Creating an Array Storage Manager Pro saves these settings associates them with your user account and uses them whenever you create an array...

Страница 40: ...e size See page 2 11 Write cache properties See page 2 12 To view or set the default array creation properties 1 From the Create Array dialog box click Set Properties See Creating a Custom Array on pa...

Страница 41: ...data written to one array partition before the controller moves to the next array partition in a stripe set RAID 0 RAID 5 set stripe set of mirror sets RAID 0 1 or stripe set of RAID 5 sets RAID 0 5...

Страница 42: ...d cache speeds read operations by storing recently read or written data in cache and by reading ahead in the data Most controllers allow you to change settings only for the write cache You can also ch...

Страница 43: ...for Use After you create an array you typically make the array available to users In some cases you may need to reboot the system before the array can be accessible Use the information in the table on...

Страница 44: ...e takes over for a failed drive If failover has occurred then the data in your redundant array was automatically rebuilt on the spare drive that took over for the failed drive This is the benefit of u...

Страница 45: ...tall the new drive Refer to the documentation for your disk drive and enclosure 3 Rescan the controller See Rescanning a Controller on page 9 2 4 Add the new drive to the spare pool See Adding a Drive...

Страница 46: ...expand the size of the array you must also use Disk Administrator to make the additional space available to users To add drives 1 In the System Browser window select the array whose drives you want to...

Страница 47: ...pleted Changing Array Settings or Properties You can change the following array settings or properties Array Name Type a new name Array size See Expanding Array Capacity on page 3 2 Write cache See Ch...

Страница 48: ...e Back Turns on write cache Caution If your controller does not have a battery or if it is not charged you risk losing data by selecting this option Write Through Turns off write cache however the dat...

Страница 49: ...ion file To restore a configuration from a file 1 In the System Browser window select the controller you want 2 Click Restore Configuration The Restore Configuration from File dialog box appears 3 Loc...

Страница 50: ...elete the current array 3 Click Yes If a task is currently running on the array or the array is in use Storage Manager Pro displays a warning message If the array has a file system on it Storage Manag...

Страница 51: ...ta To view array capacity from the System Browser window 1 In the Arrays pane select the array whose capacity you want to view 2 In the Details pane click the Partitions tab The Partitions tab shows t...

Страница 52: ...3 9 Managing Arrays For more information about each of the properties tabs refer to the Online Help...

Страница 53: ...Pro functions from a single location You can use a system that does not have a controller but you do need Storage Manager Pro installed and running on that system to manage other systems on the networ...

Страница 54: ...example shown in Figure 4 1 you must start Storage Manager Pro on systems A B and C and register them with the directory manager System D You register with the directory manager by entering the direc...

Страница 55: ...n indicates that the ML LAB system is the directory manager If a system icon is gray the system either is not running Storage Manager Pro is shut down or is not accessible from your network for anothe...

Страница 56: ...below assume you are setting up from the directory manager rather than from a member of the management set To set up remote access 1 Decide which systems you want to be members of the management set...

Страница 57: ...Name and Password for the directory manager computer The password is case sensitive 8 Click Login Storage Manager Pro confirms that the system was successfully registered 9 Click OK The Storage Manag...

Страница 58: ...well as the Storage Manager Pro software must be running on the system After you install Storage Manager Pro the Storage Manager Pro service ASMProServer or daemon starts automatically when you boot t...

Страница 59: ...ou can use Storage Manager Pro to manage remote controllers Adding a System to an Existing Management Set You can add a system to an existing management set from any of three systems on your network S...

Страница 60: ...on Type a valid global account login name and password and click OK If you are adding a stand alone system to a management set or you are changing a directory manager to a stand alone system you must...

Страница 61: ...not actually log you in as the global account user The process is similar to that used when you mount a share in Windows You can now perform all Storage Manager Pro functions on the system you opened...

Страница 62: ...one management set to another 1 From the Storage Manager Pro Dashboard on the system you want to move click Remote Configuration The Remote Configuration dialog box appears 2 From the Configuration T...

Страница 63: ...systems on your network Directory manager Member you want to remove from the management set Member of the management set but not the system you want to remove from the same set To remove a system from...

Страница 64: ...has the Storage Manager Pro service ASMProServer or daemon running see Starting Adaptec Storage Manager Pro on page 1 3 and that it is accessible on your network Then try the above steps again Moving...

Страница 65: ...rage Manager Pro Dashboard click Remote Configuration The Remote Configuration dialog box appears 2 From the Configuration Task list select Move the Directory Manager 3 Type the system name or IP addr...

Страница 66: ...mes with an account already set up that lets you add additional user accounts and change existing accounts The table on page 5 2 defines the different types of accounts Understanding User Accounts 5 1...

Страница 67: ...ed as follows Login Name administrator Password adaptec Note Login names are not case sensitive however passwords are case sensitive You should change the password and then create the additional accou...

Страница 68: ...s until you set up remote access If you are creating your first global account you must create it from the directory manager See Setting Up Remote Access for the First Time on page 4 4 After you set u...

Страница 69: ...edit user accounts or add other systems to a management set select the Administrator check box 6 Click OK Storage Manager Pro lists the new account on either the Local tab or Global tab You can change...

Страница 70: ...unt from global to local or from local to global If you need to make such a change you must create a new account of the type you need You can then delete the old account To change a user account 1 Fro...

Страница 71: ...rs Field Description Login Name You cannot change the login name If you want to change the login name you must create a new account and delete the old one Password Password for this user account You c...

Страница 72: ...tration dialog box Changing Your Password You can change the password for your user account To change your password 1 From the Storage Manager Pro Dashboard click User Administration The User Administ...

Страница 73: ...sitive Current password is displayed as 16 asterisks regardless of the actual length of the password As soon as you type one character in the field Storage Manager Pro erases the old password and you...

Страница 74: ...ents are logged in a file that you can view two ways Event Browser allows you to view events See Viewing Events on page 6 2 EventLogs txt text file that lists events Use this file if you cannot run St...

Страница 75: ...age Manager Pro Dashboard click Event Browser The Event Browser window appears and displays all events Refer to the Online Help for event definitions You can filter events by the time and date the eve...

Страница 76: ...stem whose events you want to view 3 Click OK The Event Browser displays events related to the system whose name you selected Using the Time and Date Filter You can filter events in the Event Browser...

Страница 77: ...om the lower part of the window From the drop down list boxes select a Month Day and Year and type a Time You cannot use a future date or time 3 Click OK The window changes to display only the events...

Страница 78: ...w seconds or less to complete These tasks do not last long enough to show task progress To see detailed task progress 1 In the System Browser window select the array disk drive or other device that is...

Страница 79: ...e the Build task Terminating a Task You can terminate some tasks in Storage Manager Pro at any time Some tasks take only a few seconds or less to complete These tasks do not last long enough to permit...

Страница 80: ...ch as informational warning or critical for the events for which you want to receive notification You can assign different severity levels for each recipient as well as which severity levels trigger e...

Страница 81: ...play in the From and To fields of the event e mails sent to your recipients Before you can add notification recipients you must first define the Event Notification E mail Settings To define or modify...

Страница 82: ...ant to use Adding Notification Recipients To add recipients for Event Notification 1 From the Dashboard click Event Notification The Event Notification dialog box appears Note If this is the first tim...

Страница 83: ...Local or Global tabs of the Event Notification dialog box 5 Select the type of notification you want the recipient to receive you can select one or both types E mail The recipient will receive an e ma...

Страница 84: ...The recipient will receive notification about Critical events only Critical events indicate changes that do impact the system such as a failover or when a drive goes bad 8 Click OK Storage Manager Pro...

Страница 85: ...receive an e mail page when the specified events occur 6 For each notification type assigned to the recipient type the recipient s e mail address You may want to send a test e mail notification to con...

Страница 86: ...tification dialog box appears 2 Select the tab Local or Global where the recipient is listed 3 Select the name of the person you want to remove from the list of Recipients 4 Click Delete The recipient...

Страница 87: ...to the recipient E mail Pager Address to send an e mail pager message to the recipient 6 In the Text field type the message you want to appear in the body of the e mail You may want to write a messag...

Страница 88: ...Spares only work with redundant array types mirror set RAID 1 RAID 5 set stripe set of mirror sets RAID 0 1 or stripe set of RAID 5 sets RAID 0 5 The spare drive capacity must be equal to or larger th...

Страница 89: ...larly to ensure that you have the level of spare security that you need See Spare Management Guidelines on page 7 4 for suggestions There are two parts to managing the spare pool on the controller Add...

Страница 90: ...ing a Drive from the Spare Pool You can remove a drive from the spare pool at any time To remove a drive from the spare pool 1 In the System Browser window select the controller from which you want to...

Страница 91: ...ystem Browser window select the controller for which you want to check spares 2 In the Details pane click the Spares tab The Spares tab shows which drives are assigned as spares to the spare pool To c...

Страница 92: ...g these array types only for noncritical data that does not change often and that can be easily restored from backups Assigning drives to the spare pool Assign at least one drive to the spare pool tha...

Страница 93: ...may use either SCSI or ATA drives SCSI disk drives are identified by a disk ID displayed in the following format Understanding Disk Drives 8 1 Replacing Disk Drives 8 2 Formatting a Disk Drive 8 3 Bl...

Страница 94: ...Identifies the drive on the ATA channel Storage Manager Pro displays the disk ID in the System Browser window and in the Disk Properties dialog box Caution You should not remove a disk drive that is...

Страница 95: ...u might need to format a disk drive The disk drive was previously used on a different legacy drives controller The disk drive was previously used on a different OS The disk drive is corrupted and you...

Страница 96: ...e This lets you visually identify a specific drive Note The Blink function does not work on disk drives installed in systems running NetWare To blink a drive 1 In the System Browser window select the...

Страница 97: ...ART supported drives only Allows you to enable options related to the SMART functions To view the disk drive properties 1 In the System Browser window select the drive you want to view 2 Click Propert...

Страница 98: ...ubsets of the logical space presented to the operating system by the array You can also create operating system partitions on an array using your operating system tools Viewing Partition Properties Yo...

Страница 99: ...sk Priority You can set the priority level for all tasks running on the controller to either increase or decrease the speed at which the tasks are completed Tasks such as the array creation or build f...

Страница 100: ...the System Browser window select the controller for which you want to set the task priority 2 Click Task Priority The Set Controller Task Priority dialog box appears 3 Move the slider bar between Back...

Страница 101: ...about how long your data is protected holdover time The holdover time depends on the battery s charge level You can recondition the battery to ensure that the battery s capacity is being measured corr...

Страница 102: ...k Maintenance Storage Manager Pro confirms that you want to recondition the battery During the reconditioning cycle which takes approximately 8 to 10 hours the battery s holdover time is reduced to ze...

Страница 103: ...t it to make sure it is working To test the alarm on the controller 1 In the System Browser window select the controller you want to test 2 Click Properties The Controller Properties dialog box appear...

Страница 104: ...ning the Battery on page 9 3 and set the alarm Modules only available on controllers that support plug in modules Identifies the modules present Utilization Shows how much of the attached disk drive s...

Страница 105: ...contain information about the channel To view the channel properties 1 In the System Browser window select the channel whose properties you want to view 2 Click Properties The Channel Properties dialo...

Страница 106: ...n report the status of and manage these components The SAF TE specification is an open specification designed to provide a comprehensive standardized method to monitor and report information on the co...

Страница 107: ...ogical Unit Number LUN The number assigned to a subdevice logical unit of a SCSI device which is usually zero for a single enclosure Enclosures with ATA disk drives are identified by a disk ID display...

Страница 108: ...losure in the Enclosure Properties dialog box See Viewing Enclosure Properties on page 10 8 Turning Off Enclosure Alarms Some enclosures have audible alarms that may sound when the enclosure is open w...

Страница 109: ...dialog box appears 3 Click Silence 4 Click OK Setting the Fan Speed Some enclosures have one or more fans whose speed you can control Refer to your enclosure s documentation for more information If y...

Страница 110: ...sures 2 In the Details pane click the Fans tab 3 Select a fan 4 Click Set Fan Speed The Set Fan Speed dialog box appears The dialog box does not reflect the current status of the fan 5 Select a New Fa...

Страница 111: ...want to prepare 2 In the Details pane click the Slots tab 3 Select the slot you want 4 Click Prepare Slots If the drive in the slot is part of an array Storage Manager Pro tells you that the array ma...

Страница 112: ...losure that has the slot you want to identify 2 In the Details pane click the Slots tab 3 Select the slot you want to identify 4 Click Identify Slot On Storage Manager Pro confirms that Identify Slot...

Страница 113: ...e Power tab 3 Select the power supply you want to turn on or off 4 Click Set Power On or Set Power Off Caution If you turn off the only working power supply you turn off access to the enclosure and it...

Страница 114: ...10 9 Managing Enclosures 2 Click Properties The Enclosure Properties dialog box appears For more information about the properties refer to the Online Help...

Страница 115: ...lution While installing Storage Manager Pro you receive an error that says that the temporary space required to perform this installation is greater than what is available You must have 20 MB of free...

Страница 116: ...he Diagnose button Using the Diagnose Button The Diagnose button appears on the System Browser Command Buttons pane and is activated when Storage Manager Pro detects a problem with the selected system...

Страница 117: ...or that problem appears Note The Details button is available only if there is additional information about the problem The following are examples of the types of problems that can be displayed in the...

Страница 118: ...Manager Pro displays a message that it could not unregister you from the old management set This message means that the system you are working from was part of another management set and Storage Mana...

Страница 119: ...rray configurations this section will help you understand basic Redundant Array of Independent Disks RAID technology and terminology Devices A device is any type of physical computer storage unit such...

Страница 120: ...mber Channels in Storage Manager Pro are numbered starting with number 0 Also known as a bus Disk Drives The term disk drive or drive refers to the physical disk drives that store your data Depending...

Страница 121: ...n array its space is returned to free space Partitions A partition is a contiguous area of a physical drive that makes up some or all of an array These partitions are created and managed by the contro...

Страница 122: ...or more disk drives The error checking information permits the system to rebuild the data if one drive fails RAID 5 sets for example use this method Arrays An array is two or more physical drives grou...

Страница 123: ...The free space of the larger drive is not used Figure A 2 One array made up of two disk drives On Windows NT 2000 an array s file system appears in Windows Explorer as a disk drive with its own drive...

Страница 124: ...ead performance Very high data protection Supports multiple simultaneous read and write operations Can be optimized for large sequential requests Write performance is slower than a stripe set RAID 0 o...

Страница 125: ...ou can use for each array type varies based on the controller Volume Set A volume set is a single drive that is not used in an array A volume set can also be a partition that equals the full capacity...

Страница 126: ...optimizes access speed high performance A stripe set does not have the redundancy of a mirror set or RAID 5 set Figure A 4 depicts a stripe set made up of three partitions on three separate drives Th...

Страница 127: ...ives A mirror set stores and maintains the same redundant data in each of the two partitions Figure A 5 represents a mirror set The free space of the larger drive is not used Figure A 5 Mirror set Fre...

Страница 128: ...s the partitions one chunk of each stripe is used for parity data The parity chunks are distributed across all participating drives of the RAID 5 set so parity operations are evenly divided among all...

Страница 129: ...e drives The free space of the larger drive is not used Figure A 7 Stripe set of mirror sets The stripe set of mirror sets is the top level array and mirror sets A B and C are the underlying arrays Ot...

Страница 130: ...ee separate drives The free space of the larger drive is not used Figure A 8 Stripe set of RAID 5 sets The stripe set of RAID 5 sets is the top level array and RAID 5 sets A and B are the underlying a...

Страница 131: ...n the system you are setting up Key performance issues to consider include Fault tolerance Ability of the system to recover from a failure of one of more drives without interrupting user or applicatio...

Страница 132: ...r selection If You Have Experience with Arrays For those who have experience with arrays we recommend the following path to help you choose 1 Read about the array types available in Storage Manager Pr...

Страница 133: ...rovide redundancy A RAID 5 set must be made up of at least three equal sized partitions One chunk is used for parity data for each set of chunks striped across the partitions The parity chunk is distr...

Страница 134: ...y Stripe set of mirror sets RAID 0 1 highest write performance Stripe set of RAID 5 sets RAID 0 5 Mirror set RAID 1 RAID 5 set Application server Users access applications from the server but they sto...

Страница 135: ...ge data mirror set RAID 1 to maintain a transaction log file Video server Users transfer large blocks of sequential data from the server edit the data and return the data to the server requires high s...

Страница 136: ...the chart below which spans two pages to narrow your array choices Determine which criteria are most important to you and read across the chart to find the best array type to use For definitions of th...

Страница 137: ...B 7 Choosing Your Array Type...

Страница 138: ...rmance Ability to read large numbers of consecutive data elements Streaming video programs and backup restore programs Sequential write performance Ability to write large numbers of consecutive data e...

Страница 139: ...write performance and load balancing are your most important criteria then choose a stripe set array type Array Type Criteria Volume Set Stripe Set RAID 0 Mirror Set RAID 1 RAID 5 Set Stripe Set of M...

Страница 140: ...the transfer of data and the control of information between storage devices and a storage controller Each controller s channels are identified by a number They are numbered in Storage Manager Pro sta...

Страница 141: ...all global user accounts for the management set See also management set disk array See array disk drive A physical disk drive on a SCSI bus In Storage Manager Pro drives are addressed by their disk ID...

Страница 142: ...t array fails file system A layer of software that manages a collection of files within a directory structure Storage Manager Pro supports three types of file systems on Windows NT 2000 systems FAT NT...

Страница 143: ...multilevel array An array that contains other arrays See also array stripe set of mirror sets RAID 0 1 stripe set of RAID 5 sets RAID 0 5 P parity A form of error checking redundancy used to re create...

Страница 144: ...or parity data See also chunk partition parity redundancy The capability of preventing data loss if a drive fails Some array types give you this capability using one of two methods two identical copie...

Страница 145: ...eplacements for any arrays on a controller stripe set RAID 0 An array type that is made up of two or more drives The stripe set distributes or stripes data evenly across its respective drives in equal...

Страница 146: ...s parity for the redundancy the Build function also checks the parity and fixes any parity errors volume set An array type that is a concatenation combination of one or more partitions on one or more...

Страница 147: ...turning off for enclosures 10 3 Array Information section 2 5 Array Name field 2 5 Array Properties dialog box 3 5 3 9 array properties viewing 3 8 Array Type Details section 2 5 Array Type drop down...

Страница 148: ...ty expanding for arrays B 8 viewing for arrays 3 8 Caution status 6 6 11 2 changing array settings 3 4 default array creation properties 2 8 directory manager 4 12 passwords 5 7 spare drives for pool...

Страница 149: ...ox 2 6 2 10 default view of Dashboard 1 10 Delete button 3 7 5 7 6 13 deleting a system from the management set 4 11 arrays 3 7 data from the log file 6 4 events 6 4 spares from the spare pool 7 3 use...

Страница 150: ...notification recipients 6 9 changing recipient properties 6 11 deleting recipients 6 13 sending a test notification 6 13 setting up notification by 6 8 E mail Notify From field 6 9 E mail Reply To fi...

Страница 151: ...3 G general commands 1 9 Global tab 5 4 6 9 6 12 6 13 global user accounts 4 4 5 2 guidelines for spare management 7 4 H help 1 2 holdover time 9 3 I icons changing size of in System Browser 1 17 for...

Страница 152: ...nts by system 6 2 events by time and date 6 3 multilevel arrays defined A 11 A 12 N names changing for user accounts 5 6 navigating in the System Browser 1 13 NetWare making arrays available to users...

Страница 153: ...ff 10 8 Power tab 10 8 Prepare Slots button 10 6 preparing slots in enclosures 10 6 priority setting for tasks 9 1 Product tab 8 4 9 6 progress bar viewing detail 6 5 properties arrays 3 8 channels 9...

Страница 154: ...s with access to 11 4 stopping access to 4 11 understanding how to access 4 2 Remove button 7 4 removing a system from the management set 4 11 arrays 3 7 spares from the spare pool 7 3 replacing a fai...

Страница 155: ...tart From drop down list box 6 4 starting 1 3 Event Viewer 1 8 Log Browser 1 8 Master Directory 1 8 Storage Manager Pro 1 3 Storage Manager Pro on Linux FreeBSD 1 7 Storage Manager Pro on NetWare 1 6...

Страница 156: ...r hiding the Command Buttons pane 1 17 starting 1 8 understanding 1 13 View menu 1 17 system commands 1 9 system events monitoring 6 1 6 2 viewing by system 6 2 viewing by time and date 6 3 system fil...

Страница 157: ...Password field 5 4 5 6 5 8 View menu 1 17 viewing array capacity 3 8 array properties 3 8 channel properties 9 7 controller properties 9 6 default array creation properties 2 8 disk drive properties 8...

Страница 158: ...th Milpitas Boulevard Milpitas CA 95035 R 2000 2001 Adaptec Inc All rights reserved Adaptec and the Adaptec logo are trademarks of Adaptec Inc which may be registered in some jurisdictions P N 512730...

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