Veritas Questions

[Alzhy]

1. I see Veritas Volume Manager 3.5m Base as "free" with HPUX11i Mar 2003. Any one can fill me in on what can I do with the base version? Can I do mirroring and striping already?

2. Is OJFS the same as VxFS? What happens if I already have OJFS license and I buy/install Veritas Foundation Suite (VxVM + VxFS)?

3. How can I partition a HPUX disk (similar to Solaris format or prtvtoc commands)? I'd like to be able to have say a c2t6d0s7 using just a few cylinders and at the end of the disk for my rootDG as what I've been doing on Solaris.

Thanks All!

[James R. Ferguson]

Hi:

For features see here:

http://docs.hp.com/hpux/onlinedocs/5187-1373/5187-1373.html

There are quite a few other Veritas VxVM documents at docs.hp.com too.

Regards!

...JRF...

[Pete Randall]

Nelson,

1. No. To mirror and stripe you need the Advance VxVM.

2. No. Online JFS is an enhanced version of the Veritas File System that allows resizing on the fly (and other features). Licensing - I don't know.

3. The only partitioning available in HP-UX is either LVM or VxVM.


Pete

[Leif Halvarsson_2]

Hi,

Both MirrorUX (for mirroring) and Online JFS is separate products and needs separate licenses.

[Alzhy]

Okay.

1. Mirror & Striping I think are supported, you could not just do RAID-5, hot sparing, on-line relayout and the other cool toys.

2. JFS is VxFS oem'd from Veritas. OJFS is the enhanced version that allows on-line sizing. OJFS I think is the same as the Full VRTXvxfs (Veritas Filesystem) product that comes with Veritas Foundation Suite.

3. There must be a way to partition a disk in HPUX...how then can you have say a situation where /dev/c2t6d0s3 mounted on say /data -- not using LVM or VxVM.

[Alzhy]

Correction: Mirroring and Striping are NOT Supported.. just concats and simple constructs... but if you're using SecurePath and Compaq SAN (EVA...) the base will do...

Still searching on that partitioning tool...

[Pete Randall]

Nelson,

Back in the pre-LVM days, you could and, as a matter of fact, had to, use disk sectors. Is that the sort of thing you're referring to? The sectors were of fixed sizes which would you give you portions of a disk all the way up to a whole disk. This functionality has been all but replace by LVM.


Pete

[Michael Steele_2]

1. You cannot mirror root with base vxvm. To mirror root in vxvm you need the advanced version of vxvm.

This topic has been discussed repeatedly in the forum; There are numerous threads about it. Most forum members agree that its an 'evil' and 'devious' marketing strategy by Veritas since the same strategy is used with BASE and Online JFS. (* Base JFS doesn't come with defrag. *)

2. N/A

3. You're choices in HP-UX are RAW or LVM.

VXVM and disk partitioning are considered a step backwards (* into the BSD 4.3 days of UNIX. :-0, *) and except for its I/O striping configuration vxvm is considered to be a less stable and less reliable to volume manager than HP's LVM.

So why disk partition? Why split the disk in two when a logical volume used 'raw' provides the same basic configuration with greater stability?