244 IBM Midrange System Storage Hardware Guide
After diskpart.exe has extended the disk, the partition is now 101 GB. All the data is still intact
and usable, as shown in Figure 4-108.
Figure 4-108 Disk Management after diskpart has extended the partition
With dynamic disks, the Disk Management GUI utility can be used to expand logical drives.
Modification priority
The modification priority defines how much processing time is allocated for operations
modifying the logical drive relative to the system performance. Operations that cause a logical
drive modification are:
Initializing a logical drive
Reconstructing after a disk failure
Copying back from a hot spare drive
Changing the segment size of a logical drive
Expanding a dynamic logical drive
Adding free capacity to an array
Defragmenting an array
Changing the RAID level of an array
If the logical drive contains critical data, you might prefer a high modification priority to keep
the time of a critical state (for example, after losing a disk) as short as possible, even if this
affects the system performance during the modification process.
Notes:
The extend operation is dynamic.
The extend command only works on NTFS formatted volumes.
Officially, you do not need to stop I/O operations to the disk before you extend.
However, keeping I/O operations at a minimum is a best practice.
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