stripe - Stripes a file across several volumes in a file domain
/usr/sbin/stripe -n volume_count filename
Specifies the name of the file to stripe.
Specifies the number of volumes the striped file crosses. The number of volumes must be greater than one.
The stripe utility enables you to improve the read/write performance of a file. The stripe utility directs a zero-length file (a file with no data written to it yet) to be spread evenly across several volumes within a file domain. As data is appended to the file, the data is spread across the volumes. AdvFS determines the number of pages per stripe segment and alternates the segments among the disks in a sequential pattern.
Existing, nonzero-length files cannot be striped using the stripe utility. To stripe an existing file, create a new file, use the stripe utility to stripe the new file, and copy the contents of the file you want to stripe into the new striped file. After copying the file, delete the nonstriped file.
Once a file is striped, you cannot use the stripe utility to modify the number of disks that a striped file crosses. To change the volume count of a striped file, you can create a second file with a new volume count, and then copy the contents of the first file into the second file. After copying the file, delete the first file.
You cannot stripe a nonzero-length file or a file that is already striped.
You must have root privilege and you must register the Advanced File System Advanced Utilities license to use this utility.
The following example stripes the file abc across three volumes in the same file domain:
# stripe -n 3 abc The following example stripes an existing, nonzero-length file, foo, across three volumes in the same domain. First a new file, newfoo, is created and striped. Then, the contents of file foo are copied to the new, striped file:
# touch newfoo # stripe -n 3 newfoo # cp foo newfoo