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230 Storage Center 5.5 System Manager User Guide
System Management
Selecting RAID Stripe Width
The default stripe width for storage profiles is 10 wide (RAID 6-10). Modifying this value
updates the RAID 6 selections for all system Storage Profiles. It also modifies the RAID 6
selections for user-created Storage Profiles unless Manual Storage Mode is enabled.
In a standard Storage Center system, a percentage of most-used data is storage on
RAID 10 (striped and mirrored). Data that is used less is stored on RAID 6-10 (which uses
an algorithm to rebuild data if one drive in the logical unit should fail). For RAID 5, the stripe
width determines whether the logical unit is comprised of five or nine drives. For RAID 6,
the stripe width determines whether the logical unit is comprised of six or ten drives.
Distributing data across more drives is marginally more efficient, but increases vulnerability.
Distributing data across fewer drives is less efficient, but marginally decreases vulnerability.
To select RAID stripe width
1 From the Storage Management menu, select
System > Properties.
2 Click the
Storage
tab. The system
Storage Properties
window appears.
• For RAID 5, choose between RAID 5-5, which distributes parity across five drives,
or RAID 5-9, which distributes parity across nine drives.
• For RAID 6, choose between RAID 6-6, which distributes parity across six drives, or
RAID 6-10, which distributes parity across 10 drives.
Figure 189. System Properties – Storage
Caution: Do not change the system-wide RAID level if the system is in
Conservation Mode
.
Although it would seem logical that changing the RAID level from fewer drives to
more drives would free space, the system needs additional space to park data
- Storage Center 5.5 1
- Disclaimers 2
- Trademarks and Copyright 2
- Contents 3
- Related Publications 7
- 1 Introduction 9
- What’s New in this Release 10
- Storage Center 5.4 11
- Storage Center 5.3 12
- Storage Center 5.2.2 12
- Storage Center 5.2.1 13
- Storage Center 5.1 13
- Storage Center 5.0 13
- 4 Enter the default password: 16
- To balance unbalanced ports 17
- System Dashboard 18
- Navigation 20
- Shortcut Menu 21
- Selecting Multiple Components 22
- View Menu 22
- 2 Quick Start Guide 23
- To manage unassigned disks 24
- Step 2. Change Admin Password 25
- Step 3. Create Servers 26
- Quick Start Guide 28
- To configure volume Replays 29
- Set Mapping Defaults 30
- To create multiple volumes 31
- Figure 14. Added Volumes 32
- Add Space as Required 33
- Monitor Physical Components 33
- Figure 15. Alert Monitor 34
- 3 Servers 35
- To create a server 37
- Figure 17. Name Server Window 38
- Server Clusters 40
- 9 Click Create Now 44
- A list of servers in that 45
- To delete a server cluster 47
- Virtual Servers 50
- Common Server Commands 53
- To disable alerts 54
- To delete a server 54
- To add an HBA to a sever 55
- Finding an HBA 56
- Manually Defining an HBA 57
- Removing HBAs from a Server 57
- Deleting an HBA 58
- Remove Mappings from a Server 59
- To create a server folder 60
- Managing Server Folders 61
- Viewing Server Information 62
- Viewing Server HBAs 63
- Viewing Server Mapping 66
- Server Charts 69
- Figure 47. Topology Explorer 70
- 4 Volumes 73
- Creating Volumes 75
- Figure 50. Volume Attributes 76
- Next Action Window 77
- Mapping Volumes to a Server 81
- Advanced Mapping Options 82
- Import Data to Lowest Tier 88
- Modifying Volumes 94
- Changing Volume Properties 95
- Deleting a Volume 97
- Deleting Multiple Volumes 98
- Restoring a Deleted Volume 98
- Expanding a Volume 98
- To create a volume folder 99
- To delete a folder 101
- Figure 75. List of Folders 102
- Applying Replay Profiles 103
- To make a copy of a volume 105
- To create a volume mirror 105
- To migrate a volume 106
- Copy, Mirror, and Migrate 107
- Viewing Volume Information 108
- Viewing Volume Mapping 110
- Viewing Replications 110
- Viewing and Modifying Replays 111
- Viewing Replay Calendar 111
- Viewing Volume Statistics 112
- Viewing Volume Charts 113
- To empty the recycle bin 116
- Introduction 122
- To view disk tiers 123
- Figure 90. Select Hot Spares 125
- To modify a tier 128
- Removing a Storage Class 129
- Rebalancing RAID 130
- Scheduling RAID Rebalancing 132
- Managing Disks 134
- Moving a Managed Disk 135
- Releasing Disks 136
- Deleting Disks 136
- Managed Disk Folders 138
- To create a disk folder 139
- To delete a disk folder 140
- Import from External Device 142
- 4 Click Import Now 144
- Details 144
- Non-Standard Storage Types 146
- Modifying a Storage Type 147
- Removing a Storage Type 148
- 6 Controllers 149
- Viewing Controller Properties 152
- Viewing Controller Status 154
- Viewing a List of Controllers 155
- Controllers 156
- Figure 116. CPU Performance 157
- Figure 117. Controller Back 157
- Viewing FC Folders and Cards 158
- Viewing FC IO Card Status 162
- Figure 124. FC IO Card Chart 164
- Viewing FC IO Card Properties 165
- Viewing iSCSI Cards 167
- Physical Port Virtual Port 170
- Figure 134. iSCSI Hardware 174
- To set a user alias 178
- To add an iSCSI card 178
- To enable Jumbo Frames 179
- To enable VLAN tagging 180
- Figure 142. NAT 182
- Changing a Remote iSCSI Name 188
- Enabling CHAP 190
- Creating CHAP Connections 191
- Disabling CHAP 196
- Viewing SAS Cards 198
- Viewing Individual SAS Ports 201
- Rebalancing Local Ports 202
- 7 System Management 203
- To submit a license 204
- Configuring Time 205
- To configure SMTP 206
- Configuring iSNS Server 207
- Configuring Syslog Server 207
- Figure 165. Configure SysLog 208
- Configuring Local Ports 209
- System Management 210
- To edit a fault domain 213
- Creating a New Fault Domain 214
- Editing Virtual Ports 215
- Converting to Virtual Ports 217
- Configuring iSCSI IO Cards 219
- Viewing Licensed Applications 221
- Managing IP Filtering 222
- Creating a New IP Filter 224
- 5 Click 226
- Create Now 226
- Viewing Access Violations 227
- Available Storage Summary 228
- Storage Consumption Trends 229
- Volume Distribution Reports 233
- SNMP Server 235
- Viewing System Properties 237
- To select RAID stripe width 238
- Storage Center is in 239
- Emergency Mode 239
- Data Progression 240
- Stopping Data Progression 241
- Setting System Cache 242
- Finding Unmanaged Hardware 245
- • Delete 247
- Viewing Background Processes 248
- To Phone Home immediately 249
- Figure 202. Scheduled Events 250
- Viewing the System Log 251
- Alert indicators 252
- Alert Categories 252
- Alert Status 252
- Acknowledged Alerts 253
- Alert Deletion 254
- Space Warnings 254
- Monitoring Storage Space 255
- Adding Space 257
- Adding a Controller 258
- Shutting Down and Restarting 260
- Getting an Update Package 261
- Configuring Automatic Updates 261
- Update Component Types 262
- Checking Update Status 263
- Deciding How to Apply Updates 266
- 8 Users and Groups 269
- User Privilege Levels 271
- Viewing Users 272
- Creating a User 274
- Deleting a User 275
- Restoring a User 275
- Changing User Properties 276
- User Contact Information 277
- User Views 278
- User Information 278
- To change a password 279
- My User Volume Defaults 280
- Other User Volume Defaults 280
- New User Volume Defaults 280
- Users and Groups 282
- Managing User Groups 285
- Figure 221. Create User Group 287
- To modify a user group 288
- 9 Data Instant Replay 291
- Viewing Replay Profiles 293
- Data Instant Replay 294
- Creating Replay Profiles 300
- Applying a Replay Profile 302
- Adding Replay Profile Rules 308
- Figure 244. Select Day 311
- Figure 245. Select Date 311
- Figure 246. Select Months 312
- Managing Replay Profiles 313
- Deleting a Replay Profile 316
- Viewing Volume Replay History 319
- Expiring a Replay Explicitly 320
- Expiring Multiple Replays 321
- Pausing and Resuming Replays 321
- Figure 255. Set Display Menu 323
- Figure 258. View Replay Size 324
- Replay Description 325
- Deleting a Replay 326
- Creating an Immediate Replay 327
- Recovering Data 329
- Viewing Consistency Groups 331
- Deleting a View Volume 333
- 10 Remote Instant Replay 335
- Synchronous Replication 337
- Asynchronous Replication 337
- Estimating Bandwidth 338
- Viewing Server Connectivity 340
- To define a QoS definition 341
- Remote Instant Replay 342
- Viewing QoS Definitions 343
- Figure 275. QoS Balance 344
- • Number of links 345
- Services 345
- Creating Replications 349
- 1 Select the volume 352
- Modifying Replications 356
- 11 Charting Viewer 359
- Using Charting Viewer 361
- Charting Viewer 362
- Viewing Storage Center Charts 364
- To view the disks chart 365
- To print a chart 365
- Saving a Chart as a PNG Image 366
- Zooming In and Out 366
- 12 Additional Hardware 367
- Enclosures 368
- Additional Hardware 370
- Renaming an Enclosure 371
- Removing an Enclosure 371
- Viewing Back End Loops 371
- Viewing Physical Disk Status 373
- Figure 296. Physical Disk 374
- Viewing Power Supply Status 375
- Viewing IO Module Status 376
- To view cooling sensor 377
- Viewing Audible Alarm Status 378
- Removing a Failing Disk 380
- Configuring UPS 381
- Adding UPS to Storage Center 381
- Viewing UPS Status 381
- Creating a Rack 382
- 9 Select a component 383
- 12 Click Return 384
- Rack Properties 385
- 13 IO Card Changes 387
- I/O Card Change Wizard 388
- A Storage Profiles 389
- Overview 390
- Changing User Volume Defaults 391
- Storage Profiles 392
- To create a storage profile 393
- Managing Storage Profiles 396
- Modify a User-Created Profile 397
- Apply a Profile to Volumes 397
- To apply a storage profile 398
- Manual Storage Mode 400
- B Portable Volume 405
- List of Portable Volumes 406
- Portable Volumes Nodes 407
- Portable Volume 408
- Enterprise Solid State Drives 409
- Installation and Setup 411
- Configuring Storage Profiles 412
- Disabling Write Cache 412
- D Configuring a UPS 413
- To configure APC UPS 414
- Configuring an APC™ UPS 415
- Control window appears 416
- Figure 323. Addresses Entered 417
- Figure 326. APC Add Trap 418
- To configure Liebert UPS 419
- Configuring a UPS 420
- Community 420
- To reinitialize 421
- E Server HBA Settings 423
- Settings by HBA Vendor 424
- Qlogic Card Settings 426
- Cambex Card Settings 426
- AIX Settings 427
- Solaris Settings 427
- HP-UX Settings 427
- SLES Settings 428
- RHEL Settings 429
- Netware Settings 429
- Windows Settings 430
- VMWare Settings 432
- Tru64 Settings 432
- OpenVMS Settings 432
- Glossary 433
- World Wide Name 446
- 680-019-009 B 448
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