RAID on HPUX

[panks]

I have the different model of HPUX server. I want to check about the RAID configure on it. How could I check that may be on HP 7640.
Also, how can I check whether it is software RAID or Hardware RAID.
I got new server 8640, and I want to configure the RAID on it, so how could I proceed.
I have to do the same RAID as of the old servers.

Thanks

[Steven E. Protter]

Shalom,

You would be advised if the new system has hardware raid to use that.

The raid card has its own cpu and memory and this will take load off the main system.

You can of course use mirror/ux, eg software raid but that is a less efficient use of resources.

The raid card can be identified a few ways.

Physically look at the back of the machine.
Boot at console and look for a smart raid function key prompt.

SEP

[panks]

I am not much familiar with HPUX. I have worked on AIX and Solaris.
Could pls tell me the command line by which I can ensure for the RAID config on my existing server.

[Tim Nelson]

Depending on what level of RAID you are looking for, by default HPUX comes with little.

LVM is capable of RAID0 ( simple stripe in the kb sizes)

With add-on MIRROR/UX this would add RAID1 (simple mirroring) capabilities but not RAID0+1 in a true sense.
(distributed extent based stripe with mirroring, this is not 2k,4k,8k.. striping but by the size of the LVM extent, 2M, 4M, 8M... and a mirror of each)

By purchasing a HW RAID HBA you can achieve 0,1,0+1, R5.. depending on which HBA you purchase.

Small arrays like MSA models can acheive the full RAID options, again depending on the model )

And obviously SAN based larger arrays like EVA and XP have their own full service capabilities.

[Tim Nelson]

Panks,

You will have to supply the output of the following.

HPUX Version ( uname -a )

ioscan -kfn
swlist

vgdisplay -v

[YAQUB_1]

Hi,

How many servers (PA-RISC & Itanium) you interest to configure RAID or Mirror. Put the below command output all systems:-

# uname -a
# model
# ioscan
# ioscan -kfn
# ioscan -fnC disk
# strings /etc/lvmtab
# vgdisplay -v /dev/vg00
# setboot -v
# lvlnboot -v
# swlist -l bundle