Management Software

[#1]

Hi,

Does anyone know any problem that may result in a configuration where you create 2 zones for the same HBA, 1 for Disk and 1 for LTO4 ?

Is this kind of configuration supported ?

thks,

justinomc

[#2]

Hi justinomc

Is it a dual port single hba ? If it is you could do the following

Zone port 0

server/lun

Zone port 1

Tape

Server

David

[#3]

Hi David,

That's not what I want to do.

Consider the following:

a) 1 Host with "2" FC ports (1 dual FC card or 2 mono port FC card, it doesn't matter anyway).

For redundancy reasons you would configure these 2 FC port to access disk. So you zone each port to disk array ports, each on on a different SAN fabric.

Now, if I wanted to backup to tape (LAN Free) and couldn't add more hba cards to that machine, could I use those 2 ports to access tape as well ?

Using the FC ports for both disk and tape could also increase the machine overall performance since I would be using the full duplex capability of the FC protocol. So if I had a machine with 4 FC ports I could have 44Gbit/s for disk and 44Gbit/s for tape instead of 24 + 24.

Is this a supported scenario ?

thks,

justinomc

[#4]

Hi Justinomc,

with AIX 5.2 & AIX 5.3 we have no problems with sharing tape and disk targets on the same FC port.

We have plenty of LAN free agents configured without any problems.

Regards, Andy

[#5]

I have seen Disk Errors & ADAPTER ERRORS on AIX due to a single HBA sharing disks & tape drives. The configuration is not supported by IBM.

[#6]

The configuration is not recommended & supported by IBM. The DISK ERRORS & ADAPTER ERRORS are encountered on AIX due to this configuration, especially during the backup window of server.