Re: SAN disks, tape and FC Adapters

On 16 Jan 2006 12:51:22 -0800, "tlowrie@xxxxxxxxx" <tlowrie@xxxxxxxxx>
wrote:

>Dan,
>
>Thanks for the quick response. The 2 FC adapters are for redundancy.
>The end goal is two new p550's with HACMP. The issue really comes
>in with the network ports. There is one dual-channel integrated NIC.
>We use Etherchannel. I could go with a second dual-port NIC in one
>I/O slot, but I'd rather go with two NIC's. This uses up all 5 ports
>if I stick with 3 FC adapters. We will be using a HMC, which, according
>to the online specs, prevents the use of the two serial ports. Which
>means I need a serial port adapter in one of my I/O slots to satisfy
>the HACMP non-network heartbeat path.
>
>So, I've searched all-over for a reason to use a dedicated tape FC
>adapter, have seen the recommendations, but have not found anyone
>who experienced any problems when using a 2 FC Adapter configuration.
>
>Tom

IIRC, even without the HMC the two serial ports cannot be used with HACMP
-- they're strictly ASMI/Console ports.

And be carefull on the ethernet interfaces -- HACMP supports etherchannel,
but not vlan.

I added an I/O drawer to my p550s -- and did the dual 10/100/1000 ethernet
cards as well. I've got 6 fiber cards -- 4 disk, 2 for future tape access;
6 ethernet ports split between two HACMP networks and a two-port non-hacmp
etherchannel for backups currently And I have a 1 GB ESS drive I use for
disk heartbeat.

This is an SAP/R3-Oracle DB server, with a 1.3 TB Oracle database.

(4 CPU, 16 GB, dual 73 GB drives mirrored for rootvg)

Tom.

This system was cheaper than the 660-6M1 it replaced . . .
.

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