topic Re: vxvm mirror rootdg + general in Operating System - HP-UX

vxvm mirror rootdg + general

David Burgess — Wed, 31 Mar 2004 10:32:17 GMT

I've just installed 11i on a D370 with a Veritas rootdg. What benefits am I going to see from this? Can I mirror without Mirror-UX?

I've run "vea &" and am looking through the GUI. I want to mirror root. I have 2 x 4GB disks in rootdg and want to mirror to 2 more. How would I do this? Do I still have to consider things like switching off MWC etc? Is there an equivalent under vxvm?

Can I grow filesystems or do I have to buy a licence?

I'm new to this so please excuse my ignorance!

Regards,

Dave.

Re: vxvm mirror rootdg + general

David Burgess — Wed, 31 Mar 2004 10:55:43 GMT

Just found this which answers most of it :-

http://forums1.itrc.hp.com/service/forums/questionanswer.do?threadId=69736

I guess without paying for the licence I might as well ignite it back to LVM and mirror-ux which I've already paid for!

Regards,

Dave.

Re: vxvm mirror rootdg + general

Christopher Rupnik — Thu, 01 Apr 2004 08:02:34 GMT

Hi Dave,
Actually, that is not correct. The biggest advantage of VXVM is that you can mirror the rootvg WITHOUT purchasing an extra license. And its WAY easier than doing this with lvextend and pvcreate and all that mumbo jumbo. Its one easy command, and it even sets the alternate path for you if so wanted.

Isn't MirrorUX now licensed per CPU? Thats pretty expensive!

Check this out

secheuse chrisr $ sudo /opt/VRTS/bin/vxrootmir -b -v c2t13d0
vxrootmir: 09:01: Gathering information on the current VxVM root
configuration
vxrootmir: 09:01: Checking specified disk(s) for usability
vxrootmir: 09:01: Preparing disk c2t13d0 as a VxVM root disk
vxrootmir: 09:01: Adding disk c2t13d0 to rootdg as DM rootdisk02
vxrootmir: 09:01: Mirroring only volumes required for root mirror boot
vxrootmir: 09:01: Mirroring volume standvol
vxrootmir: 09:02: Mirroring volume swapvol
vxrootmir: 09:07: Mirroring volume rootvol
vxrootmir: 09:08: Mirroring volume tmpvol
vxrootmir: 09:08: Mirroring volume homevol
vxrootmir: 09:08: Mirroring volume optvol
vxrootmir: 09:12: Mirroring volume usrvol
vxrootmir: 09:17: Mirroring volume varvol
vxrootmir: 09:20: Current setboot values:
vxrootmir: 09:20: Primary: 8/12.12.0
vxrootmir: 09:20: Alternate: 8/16/5.0.0
vxrootmir: 09:20: Making mirror disk c2t13d0 (8/12.13.0) the alternate boot
disk

vxrootmir: 09:20: Disk c2t13d0 is now a mirrored root disk

Re: vxvm mirror rootdg + general

David Burgess — Tue, 06 Apr 2004 06:55:45 GMT

Christopher,

Thanks for that. I'll take a look.

Regards,

Dave.