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007-4382-002
3: Using TPM
Expand LUN
RAID expansion allows capacity to be added to an existing RAID set while the controller
is online. No resets are required, and I/Os to other LUNs will be serviced (a little slower).
The following rules and conditions must be met to expand a LUN:
Note:
SGI does not support LUN Expansion and MORE operations on the IRIX and
Linux operating systems
1.
The most important rule is that you must be using a file manager such as Veritas’
Volume Manager. These file managers allow you to actually use an expanded LUN.
If you wish to attempt an on-line expansion, and your environment is not properly
configured, the request will fail, and you will receive an appropriate error message.
2. During the expansion, which includes re-striping data from the old (smaller) set to
the larger set, the controller continues to service host I/O operation.
3. LUN expansion allows you to add capacity to an existing LUN while the controller
is online with the host(s). For example, a system using a 6-disk RAID5 set can add
another disk to create a 7-disk drive set. This procedure is also referred to by the
acronym MORE.
MORE is supported in the simplex mode of operation only. One controller in a
dual-active controller system must be disabled (failed over). Attempting to do this
operation in a dual-active environment will be rejected.
4. One to six drives can be added to a set at a time. The maximum number of physical
disk drives is eight with 6.14 controller firmware, or 16 with 7.01 and later firmware.
5. You can not have eight LUNs defined with 6.14 controller firmware or 32 LUNs
defined with 7.01 and later controller firmware. The expansion requires one free
LUN in order to execute.
6. You cannot perform an expansion if all eight LUNs are defined with 6.14 controller
firmware or all 32 LUNs defined with 7.01 and later controller firmware.
7. The disk drives being added must be in STANDBY, and must not be part of an array.
8. The capacity of each of the added disk drives must be greater than or equal to the
size of the smallest disk drive in the set.
9. The added capacity parameters are kept in non-volatile memory. In the event of
power loss to this host or to the subsystem, (or a controller failure) the process
automatically resumes when power is restored, or the controller is replaced.
Содержание TP9100
Страница 1: ...TPM Installation Instructions and User s Guide for TP9100 007 4382 002 ...
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Страница 47: ...Configuration Functions 007 4382 002 31 Figure 3 3 Modify Disk Device Status Dialog Box for 6 14 Firmware ...
Страница 48: ...32 007 4382 002 3 Using TPM Figure 3 4 Modify Disk Device Status Dialog Box for 7 01 and Later Firmware ...
Страница 60: ...44 007 4382 002 3 Using TPM Figure 3 10 All Drive Packs Created 7 01 and Later Firmware ...
Страница 65: ...Configuration Functions 007 4382 002 49 Figure 3 15 All LUNs Defined 6 14 Firmware ...
Страница 87: ...Configuration Functions 007 4382 002 71 Figure 3 40 Initialization Progress 6 14 Firmware ...
Страница 103: ...Administrative Functions 007 4382 002 87 Figure 3 50 View Modify Controller Configuration partial for 6 14 Firmware ...
Страница 104: ...88 007 4382 002 3 Using TPM Figure 3 51 View Modify Controller Configuration partial for 6 14 Firmware ...
Страница 105: ...Administrative Functions 007 4382 002 89 Figure 3 52 View Modify Controller Configuration partial for 7 01 Firmware ...
Страница 106: ...90 007 4382 002 3 Using TPM Figure 3 53 View Modify Controller Configuration partial for 7 01 Firmware ...
Страница 107: ...Administrative Functions 007 4382 002 91 Figure 3 54 View Modify Controller Configuration partial for 7 75 Firmware ...
Страница 108: ...92 007 4382 002 3 Using TPM Figure 3 55 View Modify Controller Configuration partial for 7 75 Firmware ...
Страница 109: ...Administrative Functions 007 4382 002 93 Figure 3 56 View Modify Controller Configuration partial for 7 75 Firmware ...
Страница 116: ...100 007 4382 002 3 Using TPM Figure 3 64 Background Initialization Status Screen 6 14 Firmware ...
Страница 117: ...Administrative Functions 007 4382 002 101 Figure 3 65 Background Initialization Status Screen 7 01 and 7 03 Firmware ...
Страница 118: ...102 007 4382 002 3 Using TPM Figure 3 66 Background Initialization Status Screen 7 75 Firmware ...
Страница 131: ...Reporting Functions 007 4382 002 115 Figure 3 80 Physical Subsystem Information partial for 6 14 Firmware ...
Страница 132: ...116 007 4382 002 3 Using TPM Figure 3 81 Physical Subsystem Information partial for 7 01 and later Firmware ...
Страница 158: ...142 007 4382 002 3 Using TPM Figure 3 109Identify a Disk Click PING to identify a selected drive ...
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