RAID -5 on internal disks of RP3410 or RP5405

[subhashpakhare]

Is there any way I can do RAID-5 configuration on internal disks on HP9000 RP3410 or RP5405 servers. RAID 4Si doesn't Support internal connectors in HP-UX.
Please advice

Regards
Subhash

[Jeff Schussele · Accepted solution]

Hi Subhash,

AFAIK, there's no way to do that with the internal disks. You'd need that 4si RAID card & an array like the DS2300 at a minimum.

Rgds,
Jeff

[Steven E. Protter]

Last I checked the rp5405(perhaps I'm thinking of my rp5450) only has 4 internal disks.

That's going to make Raid 5 somewhat difficult. Raid 5 works better when there are more disks to spread the data over.

The OE does have striping as an option but thats not true Raid 5. I think thats going to require some hardware and some place to keep the disks.

SEP

[Ralph Grothe]

I know for sure that you can do software RAID almost any level with the full fledged suite of Veritas Volume Manager.
Although HP-UX 11i comes with a VxVM port for this OS I'm not sure if this port is capable of plexing internal disks to RAID.
I'm only using VxVM on our Solaris boxes, while LVM on the HP-UX boxes.
Maybe you can give it a try?

[Catalin Tache_1]

You have to go for VxVM if you what RAID5 protection with 3 disks...
Or, if you are intrested in protection use LVM with Mirror and mirror as follows: half of the first disk to half of the second, the last half of the second to half of the third disk, and the last half of the third disk to the last half of the first disk.

[Zygmunt Krawczyk]

You can use software RAID-5 via Veritas Volume Manager (B9116AA).

On rp3410 you can use hardware RAID-5. You can buy PCI 4-channel RAID160 SA SCSI Controller (A7143A) and SA internal cables (A9827A).