This section describes
how you attach an Intel™ or AMD host
running the Linux operating system to a DS6000™ with
fibre-channel adapters.
Before you attach a host, review the following information:
Notes: - The DS6000 supports
both direct and fabric attachment to the eServer BladeCenter™ JS20 when operating with
Red Hat Enterprise Linux 3.0 or 4.0, or Linux SLES 9 or SLES 10. See the http://www.ibm.com/servers/storage/disk/ds6000/ for
more information about supporting BladeCenter JS20.
- The DS6000 supports
both single path and multipath connectivity. Multipath connectivity is only
supported with the use of the IBM Multipath Subsystem Device Driver.
- SLES 10 is supported with Device Mapper Multipath (DMM). For
additional information see: http://www-03.ibm.com/servers/storage/support/software/sdd.
Click on the download tab, then select the System Storage Multipath Subsystem
Device Driver downloads link. Locate the Subsystem Device Driver for Linux
link, and select it. This will take you to the SLES 10 Device Mapper Multipath
Configuration File for DS8000 / DS6000 / ESS.
- The steps in this section that are used to install and configure adapter
cards are only examples. Your configuration might be different.
- Many Linux distributions give administrators the ability to configure
their systems for automatic system updates.
Administrators can configure these features to query for updates that are
available for each host and to automatically install any new updates that
they find, which can include updates to the kernel.
If your host is attached
to the DS6000 series
and is running the IBM Multipath Subsystem Device Driver (SDD), consider turning
off this automatic update feature because some drivers that are supplied by
IBM, like SDD, are dependent an a specific kernel and cannot function in the
presence of a new kernel. Similarly, host bus adapter drivers must be compiled
against specific kernels to function optimally. By allowing automatic update
of the kernel, you risk an unexpected impact to your host system.