Veritas 4.1 Installation Guide (HP-UX 11i v3, February 2007)

You can do the following operations on plexes:
• Creating Plexes
You can create plexes in one of the following ways:
— Creating simple plexes
Use the vxmake command to create VxVM objects, such as plexes. When creating a
plex, identify the subdisks that are to be associated with it.
Create a plex from existing subdisks:
# vxmake -g <diskgroup> plex <plex> sd=<subdisk1[,subdisk2,...]>
See vxmake (1M), for more information on the supported options.
— Creating stripped plexes
Create a striped plex, you must specify the attribute layout=stripe.
# vxmake -g <diskgroup> plex <plexname> layout=stripe stwidth=<width> ncolumn=<no_col> \ sd=<subdisk1>
<subdisk2>
See vxmake (1M), for more information on the supported options.
• Displaying information on plexes
Display detailed information about all plexes in the system:
# vxprint -lp
See vxprint (1M), for more information on the supported options.
Display detailed information about a specific plex:
# vxprint -g <diskgroup> -l <plex>
See vxprint (1M), for more information on the supported options and Veritas Volume Manager
4.1 Administrator's Guide for more information on plex states.
• Attaching and Associating Plexes
You can attach plexes to existing volumes or you to new volumes at volume creation time.
Attaching a Plex to an Existing Volume
Attach plex to an existing volume as follows:
# vxplex -g <diskgroup> att <volume> <plex>
Attaching Plex to a New Volume at Volume Creation Time
Attach a plex to a new volume:
# vxmake -g <diskgroup> -U usetype vol <volume> plex=<plex1[,plex2...]>
See vxmake (1M), for more information on the supported options.
• Moving plexes offline
Take a plex OFFLINE so that repair or maintenance can be performed on the physical disk
containing subdisks of that plex:
# vxmend -g <diskgroup> off <plex>
See vxmend (1M), for more information on the supported options.
• Detaching Plexes
Temporarily detach one data plex in a mirrored volume:
# vxplex -g <diskgroup> det <plex>
See vxplex (1M), for more information on the supported options.
• Reattaching Plexes
When a disk has been repaired or replaced and is ready for use, the plex must be put back
online (plex state set to ACTIVE).
Setting up and managing VxVM 4.1 37