HP NetRAID-4M Controller - Manual (Page 243)

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Modifying Containers
Specifying File System Compression
The file system compression attribute indicates whether to
compress the NTFS file system that resides on a container.
Compression is not supported on an NTFS file system with an
allocation size greater than 4 KB. Compression is not supported on a
FAT or FAT32 file system because allocation size begins at 8 KB.
In the following example, the container format command with
the /compressed switch compresses the NTFS file system that
resides on the container on drive F.
HPN0> container format /compressed=TRUE F
Executing: container format /compressed=TRUE "F"
Specifying the Allocation Size
The allocation size attribute indicates the allocation unit size
in kilobytes (KB). When you use the container format
command to specify the allocation unit size, the container must not
have a resident file system. For an NTFS-formatted container, the
valid values are: 0.5KB, 1KB, 2KB, 4KB, 8KB, 16KB, 32KB, or 64KB.
For a FAT-formatted container, the valid values are: 8KB, 16KB,
32KB, 64KB, 128KB, or 256KB.
This attribute is supported on Windows NT and Windows 2000
(basic disk) only.
In the following example, the container format command with
the /allocation_size switch specifies an allocation unit size of 16KB
(kilobytes) on a container on drive F.
HPN0> container format /allocation_size=16k F
Executing: container format /allocation_size=16,384 "F"
Specifying Quick Format
The quick format attribute indicates whether to perform a quick
format on the disk on which a container resides. A quick format
causes the root directory and the file table to be erased. The entire
disk is not formatted. You usually specify this attribute to quickly
erase a previously formatted disk.