Hp XP RAID Manager Software User Manual Page 78
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3. Select an unallocated area in the LDEV information table as the area to place specific data
from one or more LDEVs into Cache Residency cache. The starting and ending addresses of
the selected area appear in the Start and End fields.
NOTE: For OPEN-V LUs, Cache Residency identifies a logical area in units of 512 blocks.
If you enter 0 or 1 as the starting LBA and a value less than 511 as the ending LBA, Cache
Residency automatically changes the ending block address to 511.
4. In the Cache Residency window, select options to apply to all selected LDEVs:
1. In the Cache Residency Mode box, select the desired mode (Bind or Priority).
2. Select the desired Prestaging Mode setting (Yes or No). To set the prestaging function,
the Prestaging check box must already be selected.
3. Verify the starting and ending addresses of the area to be placed in Cache Residency
cache in the Start and End fields. Edit as needed. Make sure that the Select All Area box
is NOT checked.
CAUTION: Make sure to select the correct options because the options cannot be
changed after data is added to cache. To change between bind/priority modes, or to
enable/disable the prestaging function, release the cache extent that you want to change,
and then place the data back into Cache Residency cache with the desired settings.
5. If you do not want to apply the same options to any other LDEV, make sure that the Multi Set
/ Release box is not checked, click Set, and then click OK on the confirmation dialog box.
The requested Cache Residency operation appears in blue in the LDEV information table.
To apply the same options and data range to additional LDEVs:
1. On the Cache Residency window, select the Multi Set / Release box, click Set, and then
click OK. The Multi Set dialog box opens showing the data range and options selected
on the Cache Residency window.
2. In the Multi Set dialog box, select the desired LDKC and CU image, and select the desired
LDEVs. The data range and options displayed in the dialog box will be applied to all
selected LDEVs.
3. Click Set to return to the Cache Residency window. The requested Cache Residency
operations appear in blue in the LDEV information table.
6. Repeat steps 2 through 5 until all desired operations are listed. The Release is unavailable
until you apply (or cancel) your requested operations.
78 Managing resident cache
- Mainframe Systems User Guide 1
- Contents 3
- 4 Contents 4
- Contents 5 5
- 6 Contents 6
- Contents 7 7
- 1 Performance overview 8
- Cache Residency overview 9
- 10 Performance overview 10
- Placing data in cache 13
- Prestaging specific data 13
- Priority mode 14
- Bind mode 14
- Using Performance Control 18
- Using Performance Control 19 19
- WWN monitoring data 20
- Microprogram replacement 20
- 4 Monitoring WWNs 23
- Editing the WWN nickname 24
- Connecting WWNs to ports 24
- 5 Monitoring CUs 26
- 6 Monitoring operation 28
- Stopping monitoring 29 29
- Viewing statistics 30
- 8 Working with graphs 32
- Usage rates of MPs 34
- Usage rate of cache memory 35
- Write pending statistics 35
- Access paths usage statistics 36
- Throughput of storage system 37
- Size of data transferred 38
- Response times 39
- Cache hit rates 40
- Storing period 41
- Back-end performance 42
- Hard disk drive access rates 43
- 9 Changing display of graphs 45
- Deleting graph panel 46
- Port tab operations 53
- Analyzing traffic statistics 54
- Port tab operations 55 55
- Setting a threshold 56
- WWN tab operations 57
- WWN tab operations 61 61
- WWN tab operations 63 63
- Grouping host bus adapters 65
- Renaming an PFC group 67
- Deleting an PFC group 68
- 11 Estimating cache size 69
- 70 Estimating cache size 70
- 72 Estimating cache size 72
- Cache Residency cache areas 73
- 12 Managing resident cache 75
- 76 Managing resident cache 76
- Launching Cache Residency 77
- 78 Managing resident cache 78
- 80 Managing resident cache 80
- 13 Troubleshooting 82
- Contacting HP 83
- Related information 83
- Typographic conventions 84
- Typographic conventions 85 85
- A Export Tool 86
- Installing the Export Tool 87 87
- Using the Export Tool 88
- Using the Export Tool 89 89
- 90 Export Tool 90
- Preparing a batch file 91
- Running the Export Tool 92
- Processing time 93
- Termination code 93
- Log files 94
- Error handling 94
- Export Tool command reference 95
- Subcommand list 96
- outoption compressapply 97
- Operands 102
- Examples 108
- Short-range 109
- Description 111
- ◦ Default: 20 minutes 116
- ◦ Minimum: 1 minute 116
- Exported files 117
- Port statistics 124
- Volumes (LU) statistics 125
- MP blades 126
- Monitored CUs tab 138
- Monitored WWNs tab 138
- Edit Monitoring Switch wizard 139
- Monitor Performance window 140
- Data Range 141
- Time Range 141
- Performance Objects 141
- Selected Objects table 142
- Object field is blank 145
- Available Objects table 147
- Edit CU Monitor Mode wizard 148
- Unmonitored CUs table 149
- Confirm window 150
- View CU Matrix window 152
- Available Parity Groups table 154
- Parity Group Properties table 154
- Edit WWN wizard 155
- Edit WWN Monitor Mode wizard 156
- Unmonitored WWNs table 157
- Delete Unused WWNs window 160
- Add New Monitored WWNs wizard 160
- WWN Name 161
- Available Ports table 161
- Selected WWNs table 161
- Add to Ports wizard 163
- Monitor window 165
- Graph panel 166
- MP Properties window 167
- Edit Time Range window 168
- Setting fields 169
- Monitor Data 170
- Performance Object Selection 170
- Add Graph window 177
- Wizard buttons 185
- Navigation buttons 185
- Performance Control window 187
- Cache Residency window 195
- LDEV Information table 196
- Cache Information 197
- Operations box 198
- Multi Set dialog box 199
- Multi Release dialog box 200
- Multi-Release LDEV table 201
- Glossary 202
- 204 Index 204
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