Esm Firmware Upgrade Procedures For New Exp100S - IBM TotalStorage DS4000 EXP100 Installation, User's, And Maintenance Manual

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IBM TotalStorage DS4000 EXP100 Storage Expansion Enclosure: Installation, User's and Maintenance Guide
Table 11. ESM firmware upgrade procedures for new EXP100s
ESM ESM
firmware firmware
version of version of
the existing the new
EXP100s (added)
EXP100s
EXP100 R1 EXP100 R1
ESM ESM
firmware firmware
version 953x version 953x
or earlier or earlier (but
a different R1
version than
the existing
EXP100s)
Firmware upgrade procedure for ESMs in the new (added)
EXP100
In this case, you have added an EXP100 with R1 ESM
firmware version 953x or earlier to an EXP100 drive loop that
already contains EXP100s with a different level of R1 ESM
firmware version 953x or earlier.
It is recommended that you upgrade both the controller
firmware and ESM firmware to the EXP100 R3 version to
enable EXP100 failover capability support. Please see
Appendix A, "Upgrading R1-level firmware (DS4300 and
DS4500 only)," on page 107 for more detailed instructions
about the upgrade process.
If you decide not to upgrade the configuration to EXP100 R3,
you still must correct the ESM firmware mismatch, as
described in the following steps.
Important: Perform this ESM firmware upgrade during periods
when you are not using the DS4000. Schedule downtime for
the upgrade. If you upgrade the ESM firmware with I/Os, drives
might be randomly marked as Failed which will cause the RAID
arrays to fail.
1. In the Subsystem Management window, select Advanced →
Download → Environmental (ESM) card firmware.
2. When the Download Environmental (ESM) Card Firmware
window opens, follow the online help to download the ESM
firmware to the EXP expansion enclosure with the new
ESM.
Note: When you specify the file name of the firmware file
to download, you might need to select All Files in the Files
of type pull-down menu to display the correct file name for
the ESM firmware file. If you do, then a warning window
opens. Click OK when the warning window opens to
continue.
3. When the ESM firmware download completes, verify that
the ESM firmware mismatch error in the Subsystem
Management window has been corrected.