Page 1 ANUAL Version 1.3...
Page 2 WebPAM User Manual Copyright © 2005 Promise Technology, Inc. All Rights Reserved. Copyright by Promise Technology, Inc. (Promise Technology). No part of this manual may be reproduced or transmitted in any form without the expressed, written permission of Promise Technology. Trademarks Promise, and the Promise logo are registered in U.S.
Page 3: Table Of Contents
Contents Chapter 1: Introduction ........1 WebPAM Components .
Page 4 WebPAM User Manual Chapter 5: Monitor and Manage ......35 Log-in to WebPAM ........35 Regular Connection .
Page 5 Contents Chapter 5: Monitor and Manage, continued Logical Drives .........62 Logical Drive View .
Page 6 WebPAM User Manual Chapter 6: Technology Background ......89 Introduction to RAID ........89 RAID 0 –...
Page 7: Chapter 1: Introduction
Chapter 1: Introduction • WebPAM Components (page 2) • How They Work Together (page 2) • PAM Installation Options (page 3) • About This Manual (page 5) Thank you for purchasing a Promise Technology RAID Controller product. This Web-based Promise Array Management (WebPAM) browser-based software is included to improve your RAID Monitoring and Management experience.
Page 8: Webpam Components
WebPAM User Manual WebPAM Components There are two components to WebPAM. Depending on your installation, all three may be on the same workstation or work separately across your network: Utility Server – The Utility Server runs on the “Host PC”. The Utility Server software monitors and reports on the condition of the RAID logical drives and provides a complete set of management tools.
Page 9: Pam Installation Options
Chapter 1: Introduction PAM Installation Options Following are some examples of ways you can incorporate WebPAM into your network and RAID systems. Internet Laptop PC Desktop PC with Internet with Internet browser browser Router & Firewall File Server with Networked PC Utility Server with Internet browser Host PC with FastTrak...
Page 10 WebPAM User Manual Networked PC Networked PC Host PC with FastTrak Host PC with FastTrak Host PC with FastTrak SX Controller and SX Controller SX Controller and SuperSwap enclosure SuperSwap enclosure Figure 2. Company LAN without a File Server In the example above, like the one before, there are three PCs, each with a FastTrak SX Series RAID Controller card and a connection to the company’s LAN.
Page 11: About This Manual
Chapter 1: Introduction About This Manual This User Manual describes how to setup, use and maintain the Web-based Promise Array Management (WebPAM) software. This manual includes a full table of contents, chapter task lists and numerous cross-references to help you find the specific information you are looking for. Also included are four levels of notices: Note A Note provides helpful information such as hints or alternative...
Page 12 WebPAM User Manual...
Page 13: Chapter 2: Installation
Chapter 2: Installation • Utility Server (below) • Java Runtime Environment (page 8) • Operating System Support (page 8) • Before You Start... (page 8) • Install WebPAM (page 9) WebPAM installation software will install two major components: • Utility Server – WebPAM RAID monitoring and Networking software •...
Page 14: Java Runtime Environment
WebPAM User Manual Java Runtime Environment If you are planning to use other applications that rely on JRE or JDK, always install them first before you install WebPAM. WebPAM will use the existing JRE rather than installing a second one. WebPAM will install JRE 1.4 on your system unless you already have JRE or JDK versions 1.3.0 or 1.4.
Page 15: Install Webpam
Chapter 2: Installation Install WebPAM Follow these steps to install WebPAM on your Windows-based PC or Server. Boot the PC/server and launch Windows. If the computer is already running, exit all programs. Insert the software CD into your CD-ROM drive. Double-click on the Install CD's icon to open it.
Page 16 WebPAM User Manual When the License Agreement appears (above), click the “I accept the terms of the license agreement” radio button. Then click the Next button.
Page 17 Chapter 2: Installation When the Choose Install Folder screen appears (above), make your selection of a folder for the WebPAM applications you are installing. The default folder is C:\Program Files\Promise\WebPAM 2.0. If you want a different folder, type its location and click the Browse button. If you change your mind and want the default location, click on the Back button, then the Next button.
Page 18 WebPAM User Manual When the SSL Security Options screen appears (above), you can check External Security. An explanation follows. External SSL Security – Applies security to all connections involving the Internet or outside your company firewall. Security options are invisible to authorized users. Promise Technology provides a default certificate for the server as well as for internal data communication.
Page 19 Chapter 2: Installation When the Installation Summary screen appears (above), review your choices. To make changes, click the Back button. To continue, click the Finish button.
Page 20 WebPAM User Manual 10. When the Install Complete screen appears (above), the installation process is finished. Click the Finish button.
Page 21 Chapter 2: Installation 11. When the Install Complete screen appears (above), the installation process is finished. Click the Finish button to go to the Promise Registration website. Important Registration of your VTrak and WebPAM provides useful information that helps Promise Technologies to offer better products and support.
Page 22 WebPAM User Manual...
Page 23: Chapter 3: Setup
Chapter 3: Setup • Log-in to WebPAM (page 17) • Access a Host PC (page 19) • Recommended Initial Settings (page 20) • Delete the Temporary Logical Drive (page 22) • Create a New Logical Drive (page 23) • Log-out of WebPAM (page 27) •...
Page 24 WebPAM User Manual https://127.0.0.1:8443/promise Note that the IP address shown above applies to a log-in at the Host PC. When you log in over a network, you will enter the Host PC’s actual IP address. When the opening screen appears, type admin in the Login ID field. Type admin again in the Password field.
Page 25: Access A Host Pc
Chapter 3: Setup After sign-in, the WebPAM opening screen appears. Access a Host PC WebPAM includes a navigation tree or Tree View in the left frame of the broswer window. Click on the + icons to expand the tree. A Host PC’s RAID system is made up of: Administrative Tools –...
Page 26: Recommended Initial Settings
WebPAM User Manual A detailed discussion of WebPAM graphic user interface is found in Chapter 4 on page 29. Recommended Initial Settings These settings are recommended and now is the best time to make them. You can change them later as necessary. Administrator’s Settings To make the Admistrator’s password and notification settings: In Tree View, under Administrative Tools, click on the User Management...
Page 27 Chapter 3: Setup If you want to change the default password, type the new password into the New Password field. Use up to 8 letters and numbers but no spaces or other characters. Type the same password into the Retype Password field. If you plan to set up Event Notification, type the Administrator’s email address in the Email field.
Page 28: Utility Configuration
WebPAM User Manual Utility Configuration If you plan to set up Event Notification, you must make these settings. In Tree View, under Administrative Tools, click on the Utilility Configuration icon. Enter the Sender’s address in the Email Sender field. Be sure the sender has an account in your email system. See your IT admininstrator.
Page 29: Create A New Logical Drive
Chapter 3: Setup Click on the Logical Drive View icon and select the Delete tab. Check the box to the left of the logical drive you want to delete. Logical drives created in FastBuild appear in WebPAM as PROMISE LD x. Click the Submit button.
Page 30 WebPAM User Manual Click the Next button. If you want to create a logical drive with unused capacity, enter the assigned (used) capacity in the Logical Drive Size field. To use the maximum capacity, check the Use Maximum Capacity box. Click on the disk drives to select them.
Page 31 Chapter 3: Setup 10. Select a Stripe Block Size from the dropdown menu. Choose from 32, 64 or 128 KB. The size selected affects how FastTrak sends and receives data blocks to and from the drives. In general, a larger block size is better when handling large data transfers (such as A/V editing and graphics) while a smaller size is better when handling email and other common server data.
Page 32 WebPAM User Manual The result of the logical drive creation operation are displayed. Click on the Logical Drive Icon to see all of the information about your new logical drive. Before you can use your new logical drive, you must partition and format the logical drive using your PC’s operating system.
Page 33: Log-Out Of Webpam
Chapter 3: Setup Log-out of WebPAM There are two ways to log out of WebPAM: • Close your browser window • Click Logout on the WebPAM banner (below) After logging out, you must enter your username and password to log in again. Clicking Logout brings you back to the Login Screen.
Page 34 WebPAM User Manual...
Page 35: Chapter 4: Webpam User Interface
Chapter 4: WebPAM User Interface • Banner (page 30) • Tree View (page 30) • Management Window (page 32) • Event Frame (page 33) This chapter describes WebPAM’s Graphic User Interface (GUI). You should understand that WebPAM is software running on top of the Promise RAID BIOS and other applications that came with your Promise RAID product and your Internet Browser.
Page 36: Banner
WebPAM User Manual Banner The WebPAM banner appears at the top of your browser window when you are running Web PAM. The WebPAM banner enables you to do the following actions: • Select the language in which WebPAM displays from the dropdown menu. Currently, English and Chinese Traditional are the available languages •...
Page 37 Chapter 4: WebPAM User Interface A Host PC’s RAID system is made up of: Administrative Tools – User and Host Management and Utility Configuration User Management – Create and Delete Users, Passwords and Permissions Host Management – Information on Host PCs Utility Configuration –...
Page 38: Management Window
WebPAM User Manual Management Window The purpose of the Management Window is to monitor and manage your RAID system. The Management Window appears in the right frame of the broswer window. What appears in the Management Window depends on which Tree View icon you select.
Page 39: Event Frame
Chapter 4: WebPAM User Interface Event Frame The purpose of the Event Frame is to maintain a log of all events related to your RAID system. The information is especially helpful for RAID management and troubleshooting. To see the Event Frame, Click Show Event from the WebPAM Header (above).
Page 40 WebPAM User Manual...
Page 41: Chapter 5: Monitor And Manage
Chapter 5: Monitor and Manage • Log-in to WebPAM (page 35) • Controller (page 48) • Log-out of WebPAM (page 36) • Physical Drives (page 52) • User Management (page 37) • Logical Drives (page 62) • Host Management (page 45) •...
Page 42: Log-Out Of Webpam
WebPAM User Manual Note that the IP address shown above applies to a log-in at the Host PC. When you log in over a network, you will enter the Host PC’s actual IP address. When the opening screen appears, type admin in the Login ID field. The WebPAM login and password (when used) are case sensitive.
Page 43: User Management
Chapter 5: Monitor and Manage User Management • Add a User (below) • Change a User’s Password (page 41) • Event Notification (page 38) • Change a User’s Email Address (page 42) • Delete a User (page 41) • Change a User’s Access Rights (page 43) Add a User In Tree View, click on the User Management...
Page 44: Event Notification
WebPAM User Manual Under Host User Rights, check the boxes to select rights for this user. Right Meaning Creation Permission to create a logical drive and a spare drive Deletion Permission to delete a logical drive and a spare drive Maintenance Permission to migrate, rebuild and synchronize a logical drive;...
Page 45 Chapter 5: Monitor and Manage The image above was shortened to fit into the available space. Check the boxes of the notification events that you want to have reported to you via email and popup messages. To select events by their severity, check one of the four Select Events boxes at the top of the window.
Page 46: Event Notification Severity Levels
WebPAM User Manual Event Notification Severity Levels Information Events Warning Events Disk Plugged In Synchronization Aborted with Error Disk BSL Update Rebuild Aborted with Error Disk BSL Cleared Background Initialization Aborted with Disk Media Patrol Started Error Disk Error Fixed Migration Aborted with Error Bad Block Remapped Battery Temperature Unstable...
Page 47: Delete A User
Chapter 5: Monitor and Manage Delete a User In Tree View, click on the User Management icon. Click on the Delete tab. Check the box to the left of the user you want to delete. Click the Delete button. In the Confirmation box, click the OK button. Change a User’s Password In WebPAM, each user can change his/her own password.
Page 48: Change A User's Email Address
WebPAM User Manual Type the current password in the Old Password field. Type a new password in the New Password field. Retype the new password in the Retype Password field. Click the Submit button. Important If a user forgets his/her password, the Administrator must delete that User and create a new User, as described above.
Page 49: Change A User's Access Rights
Chapter 5: Monitor and Manage Click on the User ID link for the user whose email address will change. Type a new email address in the Email field. Click the Submit button. Change a User’s Access Rights In WebPAM, the Administrator can change a user’s access rights. To change a user’s access rights: Log in as the Administrator.
Page 50 WebPAM User Manual Under Host User Rights, check the boxes to select rights for this user. Right Meaning Creation Permission to create a logical drive and a spare drive Deletion Permission to delete a logical drive and a spare drive Maintenance Permission to migrate, rebuild and synchronize a logical drive;...
Page 51: Host Management
Chapter 5: Monitor and Manage Host Management This function provides information only. There are no user settings. To access Host Management: Under Administrative Tools in Tree View, click on the Host Management icon. Under Host List, click on the link to the host you want to see. The Host PC link always 127.0.0.1.
Page 52: Utility Configuration
WebPAM User Manual Utility Configuration Use this function to make email settings for WebPAM and also to set the refresh interval for the Event Frame. Under Administrative Tools in Tree View, click on the Utility Configuration icon. Enter the Sender’s address in the Email Sender field. Be sure the sender has an account in your email system.
Page 53: Fasttrak
Chapter 5: Monitor and Manage FastTrak The FastTrak–Information tab displays a photograph of the FastTrak SX-Series RAID Controller installed in your system. To display this screen in Management View, click on the FastTrak icon in Tree View. With the screen displayed, move your cursor over key components of the FastTrak controller card to see a Tool Tip popup message that identifies the component, as shown above.
Page 54: Controller
WebPAM User Manual Controller • Controller Information (below) • Controller Settings (page 49) • Controller Schedule (page 50) • Controller Lock (page 51) The term Controller refers to the device that controls your RAID. To access the controller, click on the Controller icon in Tree View.
Page 55: Controller Settings
Chapter 5: Monitor and Manage Controller Settings Click on the Settings tab to access controller settings. • Rates – Allocates system resources between the background process (such as Rebuild, Media Patrol, Expansion/Migration, Initialization and Synchronization) and the data read/write activity. A High setting assigns most of the system resources to background processes.
Page 56: Controller Schedule
WebPAM User Manual interval from the dropdown menu. The range is 0 to 120 seconds. A setting of 0 seconds disables the polling function. Controller Schedule Click on the Schedule tab to access scheduled background processes (such as Rebuild, Media Patrol, Expansion/Migration, Initialization and Synchronization). To access or schedule a Rebuild, Expansion, Migration, Initialization or Synchronization, click on the Logical Drive icon in Tree View then select the...
Page 57: Controller Lock
Chapter 5: Monitor and Manage Go to its function tab under the Physical Drive icon or Logical Drive icon. Under Schedule, click the Disable radio button. Controller Lock The Lock tab displays lock status and enables you to lock or unlock a subsystem controller.
Page 58: Physical Drives
WebPAM User Manual Physical Drives • Physical Drive View (below) • Physical Drive Settings (page 57) • Split a Physical Drive (page 53) • Physical Drive Media Patrol (page 58) • Merge a Physical Drive (page 54) • Physical Drive Bad Sector Log •...
Page 59: Split A Physical Drive
Chapter 5: Monitor and Manage Split a Physical Drive The action of splitting a physical drive effectively divides a single physical drive into two drives. Each of the two portions can be used by separate logical drives. You can split a physical drive only once. To split a physical drive: Click on the Physical Drive View icon in Tree View.
Page 60: Merge A Physical Drive
WebPAM User Manual The image above was shortened to fit into the available space. In the example above, note that the first portion is 37 GB as specified in the Split operation. The second portion is the physical drive’s capacity minus the split size (74.47 –...
Page 61: Media Patrol Schedule
Chapter 5: Monitor and Manage Click on a Physical Drive icon to see the results of your merge operation. Media Patrol Schedule The Physical Drive View–Media Patrol tab allows you to start Media Patrol on all physical drives. You can also run Media Patrol on individual physical drives, see page 58.
Page 62: Physical Drive Information
WebPAM User Manual Click the Schedule button. To cancel the scheduled Media Patrol operation: Click on the Physical Drive View icon in Tree View. Click on the Media Patrol tab in Management View. Click the Disable radio button. Physical Drive Information To access information about a physical drive: Click on the Physical Drive View icon in Tree View.
Page 63: Physical Drive Settings
Chapter 5: Monitor and Manage • Enclosure – The model of SuperSwap enclosure in which the disk drive is installed. • Drive Status – The operational of this disk drive. Functional means normal. Others include Offline. • Background Activity – The current background activity affecting this disk drive.
Page 64: Physical Drive Media Patrol
WebPAM User Manual Physical Drive Media Patrol The Physical Drive–Media Patrol tab allows you to start Media Patrol on an individual physical drive. You can also run Media Patrol on all physical drives at the same time, see page 55. Media Patrol is a routine maintenance procedure that checks the magnetic media on each disk drive, sector by sector.
Page 65: Physical Drive Bad Sector Log
Chapter 5: Monitor and Manage Click on the Media Patrol tab in Management View. Click on the Enable radio button. Click on the by Day, by Week or by Month radio button. From the dropdown menus, select a start time and a day of the Week or Month, if applicable.
Page 66: Locate A Physical Drive
WebPAM User Manual If any bad sectors are found, they are listed here. WebPAM informs you by popup and email messages when a bad sector error is logged (see page 38). After 10 bad sectors have been discovered on a physical drive, WebPAM issues a warning to replace the drive.
Page 67: Chapter 5: Monitor And Manage, Continued
Chapter 5: Monitor and Manage Click the Locate Drive button. The Management Window will display the message “Identified started” and the Status LED for this physical drive will flash rapidly on the SuperSwap enclosure. If you remove the physical drive, the Status LED stops blinking, the Activity LED goes dark and WebPAM will report that the physical drive was unplugged.
Page 68: Logical Drives
WebPAM User Manual Logical Drives • Logical Drive View (below) • Logical Drive Rebuild (page 71) • Create a Logical Drive (page 62) • Synchronize All Logical Drives (page 75) • JBOD (page 65) • Logical Drive Synchronization/ • Delete a Logical Drive (page 66) Redundancy Check (page 76) •...
Page 69 Chapter 5: Monitor and Manage Select the radio button beside the RAID level you want for your logical drive. WebPAM displays the RAID levels you can use with the available disk drives. You can also select JBOD on this screen. See “Choosing a RAID Level”...
Page 70 WebPAM User Manual Click the Next button. Enter a name for the logical drive in the field provided. Click the Next button. 10. Select a Stripe Block Size from the dropdown menu. Choose from 32, 64 or 128 KB. The size selected affects how FastTrak sends and receives data blocks to and from the drives.
Page 71: Jbod
Chapter 5: Monitor and Manage • Full Initialization – Erases all sectors of the physical drives being added to the logical drive. • None – No initialization. This choice is not recommended. 14. Click the Next button. The result of the logical drive creation operation are displayed. Click on the Logical Drive Icon to see all of the information about your new logical drive.
Page 72: Delete A Logical Drive
WebPAM User Manual Delete a Logical Drive Warning When you delete a logical drive, you delete all data on the logical drive. Be sure to backup any important data before you delete a logical drive! To delete a logical drive: Click on the Logical Drive View icon.
Page 73: Logical Drive Settings
Chapter 5: Monitor and Manage Click on the Logical Drive icon of the logical drive you want to see. From this screen, you can click on the links to access the Settings, Drive Mapping, Migration, Rebuild, Synchronization, Initialization and Activation features.
Page 74: Logical Drive Mapping
WebPAM User Manual • Write Back – Increases performance but can result in data loss in the event of a power failure. This is the default. • Write Through – Slower but more secure. Click the Submit button when you are done. Logical Drive Mapping This feature applies to RAID 10 logical drives only.
Page 75: On Demand
Chapter 5: Monitor and Manage RAID 0: 1 or 2 drives RAID 5: 3 or 4 drives Increased performance and capacity, adds RAID 10: 4 drives redundancy RAID 0: 3 drives RAID 5: 4 drives ncreased performance and capacity, adds RAID 10: 4 drives redundancy RAID 1: 2 drives...
Page 76: Scheduled
WebPAM User Manual Click on the Migration tab in Management View. If the Migration or Expansion requires additional physical drives, click on a free physical drive to select it. Available drives have a black frame. Selected drives have a red frame. Click the Start Now button.
Page 77: Cancel A Schedule
Chapter 5: Monitor and Manage Click on the Migration tab in Management View. Click on a free physical drive to select it. Available drives have a black frame. Selected drives have a red frame. Click on the Enable radio button. From the dropdown menus, select a start time.
Page 78: On Demand
WebPAM User Manual Rebuild refers to the process of repairing a logical drive by reconstruction the data on one of its physical drives.This feature only applies to logical drives with redundancy, RAID 1, RAID 5 and RAID 10. You can set up a Rebuild to: •...
Page 79: Scheduled
Chapter 5: Monitor and Manage Click the Start Now button. You can monitor Rebuild progress on the Logical Drive Rebuild tab. Click the respective buttons to pause and resume the Rebuild. Scheduled To schedule a Rebuild: Click on the Logical Drive View icon in Tree View.
Page 80: Cancel A Schedule
WebPAM User Manual Click on the Enable radio button. From the dropdown menus, select a start time. Start time is based on a 24-hour clock. Click in Start At field to display a popup calendar. Click on the start date in the calendar or enter a date manually. Click the Schedule button.
Page 81: Automatic Rebuild
Chapter 5: Monitor and Manage Automatic Rebuild Automatic rebuilding of a logical drive is possible under the following conditions: • The logical drive is a RAID 1 or a 3-drive RAID 5. See “Create a Logical Drive” on page 62. •...
Page 82: Logical Drive Synchronization/Redundancy Check
WebPAM User Manual Click on the Enable radio button. Click on the by Day, by Week or by Month radio button. From the dropdown menus, select a start time and a day of the Week or Month, if applicable. Start time is based on a 24-hour clock. Click the Schedule button.
Page 83: Scheduled
Chapter 5: Monitor and Manage Click on the Logical Drive View icon in Tree View. Click on the Logical Drive icon of the logical drive you want to synchronize. Click on the Synchronization tab in Management View. In the Policy dropdown menu, select Fix if you want Synchronization or Redundancy Check if you do not want to correct inconsistencies.
Page 84: Cancel A Schedule
WebPAM User Manual In the Policy dropdown menu, select Fix if you want Synchronization or Redundancy Check if you do not want to correct inconsistencies. Click on the Enable radio button. Click on the by Day, by Week or by Month radio button. From the dropdown menus, select a start time and a day of the Week or Month, if applicable.
Page 85: Logical Drive Activation
Chapter 5: Monitor and Manage • Full Initialization – Erases all sectors of the physical drives being added to the logical drive. • None – No initialization. This choice is not recommended. When you select full initialization, the process takes some time, depending on the size of the physical drives selected for the logical drive.
Page 86: When A Disk Drive Fails
WebPAM User Manual When a Disk Drive Fails The following will occur when a disk drive fails or goes offline: • The FastTrak Controller’s audible alarm, if enabled, will sound • The SuperSwap Status LED changes from green to red •...
Page 87: Replace The Failed Disk Drive
Chapter 5: Monitor and Manage Identify the Failed Disk Drive Click on the Physical Drive View icon in the WebPAM user interface. Look for a missing physical drive. A drive that used to be present but is suddenly absent is the failed disk drive.
Page 88 WebPAM User Manual Select the physical drive you just replaced. Click the Start Now button. You can monitor Rebuild progress on the Logical Drive Rebuild tab. Click the respective buttons to pause and resume the Rebuild. When the Rebuild is finished, your logical drive will be Functional again.
Page 89: Enclosures
Chapter 5: Monitor and Manage Enclosures Enclosure View Enclosure View provides a list of all enclosures currently on the Host PC. To access Enclosure View, click on the Logical Drive View icon in Tree View. From this window, you can click on the links to access information and functions of individual Enclosures.
Page 90 WebPAM User Manual The information tab displays the following information: • Enclosure Type – The manufacturer’s model name or number. • Fan Speed – The RPM of the enclosure’s cooling fans. • Temperature – The internal temperature of the enclosure. Each reading reflects a separate measurement.
Page 91: Spare Drives
Chapter 5: Monitor and Manage Spare Drives A spare drive is a physical drive designated to function as a hot spare drive. A hot spare drive automatically replaces a failed physical drive. See “Controller Settings” on page 49 and “Logical Drive Rebuild” on page 71 for more information on how spare drives work.
Page 92 WebPAM User Manual From the Logical Drive dropdown menu, select • Global Spare – This Spare Drive can be used by any qualified Logical Drive. • Logical Drive – The name of the logical drive to which this Spare Drive will be assigned or dedicated.
Page 93: Split Physical Drives As Dedicated Spare Drives
Chapter 5: Monitor and Manage Split Physical Drives as Dedicated Spare Drives If you have split physical drives in your system, you cannot use the same split drive in logical drive and as a spare drive dedicated to the same logical drive. In the example above, Logical Drive 1 is selected in dropdown menu, meaning that this spare drive will be dedicated to Logical Drive 1.
Page 94: Delete A Spare Drive
WebPAM User Manual Delete a Spare Drive To delete a spare drive: Click on the Logical Drive View icon. Select the Delete tab. Check the box to the left of the spare drive you want to delete. Click the Delete button. In the Confirmation box, click the OK button.
Page 95: Chapter 6: Technology Background
Chapter 6: Technology Background • Introduction to RAID (below) • Choosing a RAID Level (page 95) • JBOD – Single Drive (page 94) • Choosing Stripe Block Size (page 97) • Gigabyte Boundary (page 97) • Initialization (page 97) • Hot Spare Drive(s) (page 98) •...
Page 96: Raid 0 - Stripe
WebPAM User Manual RAID 0 – Stripe When a logical drive is striped, the read and write blocks of data are interleaved between the sectors of multiple disk drives. Performance is increased, since the workload is balanced between drives or “members” that form the logical drive. Identical drives are recommended for performance as well as data storage efficiency.
Page 97: Raid 1 - Mirror
Chapter 6: Technology Background RAID 1 – Mirror When a logical drive is mirrored, identical data is written to a pair of disk drives, while reads are performed in parallel. The reads are performed using elevator seek and load balancing techniques where the workload is distributed in the most efficient manner.
Page 98: Raid 5 - Block Striping With Distributed Parity
WebPAM User Manual RAID 5 – Block Striping with Distributed Parity RAID 5 organizes data across the disk drives of the logical drive, and stores parity information on to a disk drive dedicated to this purpose. This organization allows increased performance by accessing multiple disk drives simultaneously for each operation, as well as fault tolerance by providing parity data.
Page 99: Raid 10 - Mirror / Stripe
Chapter 6: Technology Background RAID 10 – Mirror / Stripe Mirror/Stripe combines both of the RAID 0 and RAID 1 logical drive types. It can increase performance by reading and writing data in parallel while protecting data with duplication. At least four disk drives are needed for RAID 10 to be installed. With a four-disk-drive logical drive, one drive pair is mirrored together then striped over a second drive pair.
Page 100: Jbod - Single Drive
WebPAM User Manual JBOD – Single Drive Just a Bunch of Disks (JBOD) arranges individual physical drives on the FastTrak controller the same as if they were attached to the PC’s motherboard controller. The advantage is that a FastTrak Controller can accommodate up to four physical drives, more than most PC motherboards.
Page 101: Choosing A Raid Level
Chapter 6: Technology Background Choosing a RAID Level There are several issues to consider when choosing the RAID Level for your logical drive. The following discussion summarizes some advantages, disadvantages and applications for each choice. RAID 0 Advantages Disadvantages Implements a striped disk logical drive, Not a true RAID because it is not fault- the data is broken down into blocks and tolerant...
Page 102: Raid 5
WebPAM User Manual RAID 5 Advantages Disadvantages High Read data transaction rate Disk failure has a medium impact on throughput Medium Write data transaction rate Good aggregate transfer rate Recommended Applications for RAID 5 • File and Application servers • Intranet servers •...
Page 103: Choosing Stripe Block Size
Chapter 6: Technology Background Choosing Stripe Block Size The stripe block size value can be set to 32 KB, 64 KB and 128 KB. 64 KB is the default. This selection will directly affect performance. There are two issues to consider when selecting the stripe block size. •...
Page 104: Hot Spare Drive(S)
WebPAM User Manual Hot Spare Drive(s) A hot spare is a disk drive that is connected to the logical drive system but is not assigned as a member of the logical drive. In the event of the failure of a drive within a functioning fault tolerant logical drive, the hot spare is activated as a member of the logical drive to replace a drive that has failed.
Page 105: Cache Settings
Chapter 6: Technology Background Cache Settings There is a data cache on the FastTrak controller and another one on each physical disk drive. A cache holds data in volatile memory during RAID management and data transfer activity. The right combination of cache settings for your needs can improve FastTrak’s efficiency and performance.
Page 106: Ranges Of Logical Drive Expansion
WebPAM User Manual The Expansion feature applies only to RAID 0 and RAID 5 arrays. You can add physical drives as described in the table below. From Result RAID 0: 1 drive RAID 0: 2, 3 or 4 drives Increased capacity RAID 0: 2 drives RAID 0: 3 or 4 drives Increased capacity...
Page 107 Chapter 6: Technology Background See the chart below. Maximum LD Current LD Size Sector Size Expansion Size 8 to 16 TB 16 TB 4096 bytes 4 to 8 TB 8 TB 2048 bytes 2 to 4 TB 4 TB 1024 bytes 0 to 2 TB 2 TB 512 bytes...
Page 108 WebPAM User Manual...
Page 109: Appendix A: Frequently Asked Questions
Appendix A: Frequently Asked Questions I tried to log into WebPAM but my browser showed the message “cannot be displayed.” What is the problem? The browser decided prematurely that WebPAM was not responding. Click the Refresh button. This action usually brings up the login screen. I can access the Host PC over my company’s intranet.
Page 110 WebPAM User Manual Can I use my existing WebPAM setup to monitor a Promise subsystem product also? No. Promise subsystem products, such as UltraTrak and VTrak, have a more advanced version of WebPAM tailored to their designs. Why do the Rebuild, Synchronize, Expand and Migrate operations take so long compared to moving data? When data is moved, the operation consists of reading, writing and checking one or more files.
Page 111: Appendix B: Partition And Format
Appendix B: Partition and Format In order for your operating system to recognize and work with the disk drives attached to your FastTrak SX Series RAID Controller card, the drives must be partitioned and formatted. • If your drives were previously partitioned and formatted they are ready to use and you can skip this procedure •...
Page 112 WebPAM User Manual Click the Next button to start the Wizard. In the following windows, select Disk 1 to Initialize. Do not select any disks to Convert. Click the Finish button to Initialize the logical disk. Right-click on the Unallocated portion of Disk 1 and select New Partition... from the popup menu.
Page 113 Appendix A: Partition and Format Click the Next button to start the wizard. In the following windows, do the following actions. Click Next to move to the next window. • Select Primary Partition • Specify the maximum available partition size in MB •...
Page 114 WebPAM User Manual When formatting is complete, your logical disk will appear as a hard drive in the Disk Management window (above) and the My Computer window (below).

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Chapter 2: Installation

Chapter 3: Setup

Chapter 4: Webpam User Interface

Chapter 5: Monitor and Manage

Chapter 6: Technology Background

Appendix A: Frequently Asked Questions

Appendix B: Partition and Format

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