NAME    [Toc]    [Back]

       stripe - Stripes a file across several volumes in an AdvFS
       domain.

SYNOPSIS    [Toc]    [Back]

       /usr/sbin/stripe -n  volume_count filename

OPTIONS    [Toc]    [Back]

       Specifies the number of volumes the striped file  crosses.
       The number of volumes must be greater than one.

OPERANDS    [Toc]    [Back]

       Specifies the name of the file to stripe.

DESCRIPTION    [Toc]    [Back]

       The  stripe  utility enables you to improve the read/write
       performance of a file. The stripe utility directs a  zerolength
  file (a file with no data written to it yet) to be
       spread evenly  across  several  volumes  within  an  AdvFS
       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.

RESTRICTIONS    [Toc]    [Back]

       You cannot stripe a nonzero-length file or a file that  is
       already striped.

EXAMPLES    [Toc]    [Back]

       The  following  example  stripes the file abc across three
       volumes in the same AdvFS domain: # stripe -n  3  abc  The
       following  example  stripes  an  existing,  nonzero-length
       file, foo, across three volumes in the same AdvFS  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

SEE ALSO    [Toc]    [Back]

       Commands: showfile(8)

       Files:

       advfs(4)



                                                        stripe(8)