/SITE=n {DSAnnnn: | ddcu:} (Alpha/Integrity servers only)

    Indicates to the shadowing driver the site location of the
    specified shadow set (DSAnnnn:) or shadow set member (ddcu:). If
    the member is removed from the shadow set and later is returned,
    this qualifier must be specified again.

    The SHADOW_SITE_ID system parameter defines the default site
    location of the shadow set. You can override the default location
    of the shadow set with the /SITE qualifier.

    The valid range for the site location, represented by n, is 1
    through 255.

    After you apply this qualifier, the setting remains in effect
    until you change it either with this command or with the SET
    SHADOW/SITE command.

    This qualifier can improve read performance because the member
    that is physically local to the system will be the preferred disk
    from which to read, provided that you specify the /SITE qualifier
    for each shadow set member and for the shadow set. (In a Fibre
    Channel configuration, shadow set members at different sites
    are directly attached to the system. For the Volume Shadowing
    and cluster software, there is no distinction between local and
    remote in multiple-site Fibre Channel configurations.)