VTrak E-Class Product Manual - Promise Technology, Inc.

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VTrak E-Class Product Manual RAID 0 – Stripe When a disk array is striped, the read and write blocks of data are interleaved between the sectors of multiple drives. Performance is increased, since the workload is balanced between drives or “members” that form the disk array. Identical disk drives are recommended for performance as well as data storage efficiency. The disk array’s data capacity is equal to the number of disk drive members multiplied by the smallest drive's capacity. Disk Drives Figure 1. RAID 0 Striping interleaves data across multiple drives For example, one 100 GB and three 120 GB drives will form a 400 GB (4 x 100 GB) disk array instead of 460 GB. RAID 0 arrays require one or more physical drives. Recommended applications: Image Editing, Pre-Press Applications, other applications requiring high bandwidth. 232 Data Stripe
RAID 1 – Mirror 233 Chapter 7: Technology Background When a disk array is mirrored, identical data is written to a pair of 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. Whichever drive is not busy and is positioned closer to the data will be accessed first. With RAID 1, if one drive fails or has errors, the other mirrored drive continues to function. This is called Fault Tolerance. Moreover, if a spare drive is present, the spare drive will be used as the replacement drive and data will begin to be mirrored to it from the remaining good drive. Data Mirror Disk Drives Figure 2. RAID 1 Mirrors identical data to two drives Due to the data redundancy of mirroring, the drive capacity of the disk array is only the size of the smallest drive. For example, two 100 GB drives which have a combined capacity of 200 GB instead would have 100 GB of usable storage when set up in a mirrored disk array. Similar to RAID 0 striping, if drives of different capacities are used, there will also be unused capacity on the larger drive. RAID 1 arrays use two physical drives. You can create multiple RAID 1 disk arrays on the same Promise product. Recommended applications: Accounting, Payroll, Financial, other applications requiring very high availability.
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VTRAK E-Class E610f, E610s, E310f,
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Contents Chapter 1: Introduction to
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v Contents Chapter 4: Management wi
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vii Contents Chapter 4: Management
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ix Contents Chapter 5: Management w
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xi Contents Chapter 5: Management w
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xiii Contents Chapter 7: Technology
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Chapter 1: Introduction to VTrak Th
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Figure 3. VTrak E610f rear view RAI
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5 Chapter 1: Introduction to VTrak
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LUN Masking and Mapping: Supports m
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9 Chapter 1: Introduction to VTrak
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Chapter 2: VTrak Installation This
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13 Chapter 2: VTrak Installation 4.
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15 Chapter 2: VTrak Installation Th
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Installing Disk Drives 17 Chapter 2
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Figure 8. Disk drive mounting holes
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21 Chapter 2: VTrak Installation Ma
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23 Chapter 2: VTrak Installation Fi
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Figure 15.JBOD expansion with no si
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Configuring Direct Attached Storage
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29 Chapter 2: VTrak Installation Fi
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Figure 21. JBOD expansion with no s
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Connecting the Power 33 Chapter 2:
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Chapter 3: VTrak Setup This chapter
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Setting up VTrak with the CLI 37 Ch
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Setting up VTrak with the CLU 1. At
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41 Chapter 3: Setup Making Manual S
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3. When the log-in screen (Figure 2
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Automatic 45 Chapter 3: Setup When
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Advanced 47 Note Chapter 3: Setup F
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Using WebPAM PROe over the Internet
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Chapter 4: Management with WebPAM P
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Figure 1. The WebPAM PROe log-in sc
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Perusing the Interface 55 Chapter 4
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Using Tree View 57 Chapter 4: Manag
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Logging out of WebPAM PROe There ar
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Working with Subsystems 61 Chapter
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63 Chapter 4: Management with WebPA
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Viewing NVRAM Events 65 Chapter 4:
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Scheduling an Activity 69 Chapter 4
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9. Click the Submit button. Creatin
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Managing the Network Connection 77
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Managing Fibre Channel Connections
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Port Setting Information 81 Chapter
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Managing Storage Services 87 Chapte
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Making Telnet Settings 93 Chapter 4
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Changing the Startup Setting 95 Cha
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Deleting Netsend Recipients 97 Chap
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Importing a User Database 99 Chapte
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Restoring Factory Defaults 101 Chap
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Shutting Down the Subsystem 103 Cha
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Managing Controllers 105 Chapter 4:
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Upgradable items You can upgrade th
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109 Chapter 4: Management with WebP
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Figure 11. VTrak E610f and E610s fr
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• Enclosure Warning Temperature T
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Clearing Stale and PFA Conditions 1
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Managing Disk Arrays Disk Array Man
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• Media Patrol - Enabled or disab
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Deleting a Logical Drive To delete
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To prepare a disk array for transpo
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11. Click the Submit button. Initia
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Managing Spare Drives 141 Chapter 4
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Deleting Spare Drive 143 Chapter 4:
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Chapter 5: Management with the CLU
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Figure 4. The CLU main menu 149 Cha
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Running Quick Setup 151 Chapter 5:
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153 Chapter 5: Management with the
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Managing the Controllers Controller
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Locating the Controller 157 Chapter
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Locating a Power Supply 159 Chapter
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Setting an Alias 163 Chapter 5: Man
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Managing Disk Arrays Disk Array Man
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Creating a Disk Array - Express 167
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Managing the Network Connection 179
Page 195 and 196: Managing Fibre Channel Connections
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Page 199 and 200: Viewing SAS Port Statistics 185 Cha
Page 207 and 208: Working with LUN Mapping LUN Mappin
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Page 211 and 212: List of User Privileges 197 Chapter
Page 213 and 214: Working with Software Management So
Page 215 and 216: Making Telnet Settings 201 Chapter
Page 217 and 218: Making CIM Settings 203 Chapter 5:
Page 221 and 222: Clearing Statistics 207 Chapter 5:
Page 223 and 224: Shutting Down the Subsystem 209 Cha
Page 225 and 226: Restarting the Subsystem 211 Chapte
Page 227 and 228: Chapter 6: Maintenance This chapter
Page 229 and 230: 215 Chapter 6: Maintenance 8. When
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Page 241 and 242: Figure 19. Removing the battery ass
Page 243 and 244: Single Controller Subsystem Removin
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Page 249 and 250: RAID 5 - Block and Parity Stripe 23
Page 251 and 252: RAID 10 - Mirror + Stripe 237 Chapt
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Page 257 and 258: RAID 1E Recommended Applications fo
Page 259 and 260: Choosing Stripe Size 245 Chapter 7:
Page 261 and 262: Read Cache Policy 247 Chapter 7: Te
Page 271 and 272: Transition 257 Chapter 7: Technolog
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Page 275 and 276: Chapter 8: Troubleshooting This cha
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Page 291 and 292: Reported Event Corrective Action Di
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Reported Event Corrective Action PS
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Reported Event Corrective Action Re
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Reported Event Corrective Action St
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Critical & Offline Disk Arrays 289
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Figure 13.Drive carrier LEDs 291 Ch
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Physical Drive Problems Physical Dr
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Enclosure Problems 295 Chapter 8: T
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Power Supplies Battery 297 Chapter
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Connection Problems 299 Chapter 8:
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301 Chapter 8: Troubleshooting Brow
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Chapter 9: Support This chapter cov
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How can I be sure everything is wor
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Taiwan E-mail Support e-Support On-
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309 Chapter 9: Support No other doc
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Appendix A: Useful Information The
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Installing a Second Cache Battery 3
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Index Numerics 10GB Truncate 108, 1
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delete disk array 125, 169 initiato
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information, cont. physical drive 1
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offline, cont. physical drive 119,
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eported events, cont. logical drive
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system reported event 287 T Table R
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