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Digital Media Storage Solution Installation Guide 17
© Copyright 2010, IBM Corporation. All rights reserved.
SOLUTION INSTALLATION
1. Use a meshed fabric with each HBA zoned to see both controllers but controllers unable to see each
other.
2. Use RDAC or MPIO failover drivers as appropriate for your operating systems (ATTO for Apple and/or
Windows XP, Vista, or Windows 7). Do not use the StorNext failover driver
3. For Installations that include Apple (MacOS) or Windows (XP, Vista, Windows 7) Clients
a. Set host type MacOS
b. This will :
1. Set TPGS On
2. Set AVT Off
c. MAC’s and Windows XP, Windows Vista, and Windows 7, must use ATTO Celerity FC81-EN, FC82-
EN, or FC-84-EN HBAs
Atto site
http://www.attotech.com/
Driver downloads,
https://www.attotech.com/register/index.php?FROM=http://www.attotech.com/downloads.html
The user is required to register and create a free account. Then navigate to,
Fibre Channel HBAs for Storage Partners.
IBM DS Series Celerity FC-8xEN
4. When connecting to MAC systems
a. Switched environments preferred
b. In non-switched (direct-connect) environments, configure the ATTO host adapter for an
"Arbitrated Loop" connection instead of allowing them to auto negotiate.
c. Use Host Region “Mac OS.”
5. For Linux Clients mixed with Apple Clients and Windows Clients
a. If Apple servers or clients are sharing physical connection to a storage system, it is important to
use the proper host type definitions.
b. Use Host Region “Mac OS.”
6. How to handle mixing multiple server and client O/S types when they require access same LUNS:
a. The MDCs in the approved solutions will always be Linux or Windows
b. Clients can be Apple, Windows or Linux
c. To allow disparate O/S host connections:
1. Create a Host Group with no Host type associated
2. Use Host Region “Mac OS.”
7. In some StorNext environments (DS5020 and DS4700) it is recommended that you do not have a LUN 0
mapped. There may be confusion with StorNext thinking that LUNs off of the controller with LUN 0
mapped will not be compatible because it thinks AVT is off and it is needed ON.
8. Recommended cache settings: Set pre-fetch value to any number other than 0 (zero) to enable automatic
prefetch.