Apple Xsan User Manual download pdf (Page 118)

11 8 Appendix B Using the Command Line

Creating and Preallocating a File (cvmkle)

Use the cvmkfile command to allocate space for a le on an Xsan volume.

$ cvmkfile [-k affinity] [-p] [-s] [-w] [-z] size(k|m|g) filename

Parameter Description

-k affinity

Allocate space for the le on one of the storage

pools with the specied anity tag.

affinity – the anity tag that’s assigned to

the storage pools where you want the folder’s

contents to be stored

You can use the

show long command of the

cvadmin tool to see a storage pool’s anity tag.

-p

Force future extensions of the le to be aligned

on block boundaries.

-s

Force the le allocation to align with block

boundaries.

-w

Set le size as indicated by size.

-z

Set the contents of the le to zeros.

size(k|m|g)

A number specifying the amount of space to

allocate to the le.

size – a number

k – kilobytes

m – megabytes

g – gigabytes

filename

The path to and name of the le to allocate.

Example

Allocate 2 GB of space for the le “data1” on the storage pool “datasets”:

$ cvmkfile -k datasets 2g data1

1 2 ... 113 114 115 116 117 118 119 120 121 122 123 ... 128 129

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Apple Xsan User Manual Page 118