Diego, Check out cuddletec they have excellent exercise materials for Veritas.
Enjoy ----- Original Message ---- From: Diego Giurgola <[EMAIL PROTECTED]> To: Solaris-Users mailing list <[email protected]> Sent: Wednesday, June 25, 2008 3:01:41 AM Subject: Re: [Solaris-Users] plex, volumes, disks, raw disks, what a mess ;D That's perfect! Thanks Nathan, now all is more clear! Diego. 2008/6/25 Nathan Dietsch <[EMAIL PROTECTED]>: > Hello Diego, > > You seem to be referring to two things; > > The first is standard solaris technology, the second is Veritas Volume > Manager. For google terms you can look for character (raw) or block > (filesystem) devices. The difference is how they are access, as a stream of > data or as a series of blocks. > > A LUN is a logical unit number (SCSI term), this could be something as > simple as a disk on the end of a SCSI cable or something more complex, such > as virtual disk defined in a storage array such as a EMC or Hitachi array. > Think of a LUN as a disk, if you don't know the difference, you probably > don't need to just yet. > > Plexes and Volumes are Veritas Volume Manager concepts. > http://support.veritas.com has the best information on this, but a Volume > is like a disk, but can be mirrored or striped or a few other combinations. > Think of a volume like a LUN and you won't be far wrong, although there is > more you can do with Volumes than you can do with LUNs. A plex is a sub > component of a mirrored volume. A plex is one half of the mirror, each > volume has at least one plex, each additional plex is an additional mirror > of the data. > > As for books, I think UNIX Storage Management discusses this. The veritas > volume manager document, while quite large, provides a good introduction to > the topics. > > > I hope this helps. > > Kind Regards, > > Nathan Dietsch > > > On 24/06/2008, at 5:38 PM, Diego Giurgola wrote: > > Hi there, I'm new to Solaris and the disk terminology. What is the >> difference between disks, raw disks, volumes, plex, LUN? >> >> I googled for a while, but I didn't get anything very useful. >> >> Thanks. Diego. >> _______________________________________________ >> Solaris-Users mailing list >> [email protected] >> http://www.filibeto.org/mailman/listinfo/solaris-users >> > > _______________________________________________ > Solaris-Users mailing list > [email protected] > http://www.filibeto.org/mailman/listinfo/solaris-users > _______________________________________________ Solaris-Users mailing list [email protected] http://www.filibeto.org/mailman/listinfo/solaris-users _______________________________________________ Solaris-Users mailing list [email protected] http://www.filibeto.org/mailman/listinfo/solaris-users
