User Guide
6. Management
6.7 Firmware Upgrade
•
SAS Configuration
: If the enclosure contains SAS drives and redundant ESMs, the enclosure firmware
may be upgraded while online. This is due to the SAS configuration and host being able to manage
the firmware upgrade using host multi-pathing software. The storage administrator should ensure that
there are always two paths to each drive before starting an upgrade on either ESM. This will ensure
that at least one path to each drive is available during the reset of the ESM that is being upgraded.
After the firmware has been downloaded to one ESM, the ESM will need to be reset and boot to the
new firmware. Before proceeding with the upgrade on the second ESM, ensure that each drive has
two available paths to guarantee that there is a redundant path is available to service I/O. The storage
administrator should determine if the applications on the enclosure should be quiesced before the
online upgrade is completed.
•
SATA Configuration
: If the enclosure contains SATA drives, the enclosure firmware should not be
upgraded while online. This is due to the SATA configuration having no redundancy due to only having
a single ESM. When the ESM is rebooted, the single path to the drives to service I/O will be taken
down.
Devices (<dev>)
In order to initiate a firmware upgrade on the enclosure, a target must be identified. Linux targets are
referred to as sg (SCSI Generic) devices and appear as sg<dev> in the Linux Firmware Upgrade procedure.
Windows targets are referred to as SCSI devices and appear as SCSI<dev> in the Windows Firmware
Upgrade.
Required Downloads
:
•
CLI Tools: to download the latest version of CLI tools, see:
Downloading Firmware from the Support
•
Firmware: to download the latest version of enclosure firmware, see:
Note:
Firmware upgrades do not affect any zoning configurations that have been enabled on
the enclosure.
6.7.2
Enclosure Cabling for Firmware Update
Physically connect the 2U24 Flash Storage Platform to the host server using SAS cables in the configuration
displayed below.
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