IBM TotalStorage EXP100, Инструкция по установке, использованию и обслуживанию

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Note: If you insert an ESM with firmware version 9554 into an EXP100 that
contains an ESM with firmware version 956x installed, you must upgrade
the 9554 version to version 956x immediately. Also, do not insert an ESM
with firmware version 9554 into an EXP100 that contains an ESM with
firmware version 953x installed. If you do, the Storage Manager
Subsystem Management window will show the EXP100 with all slots
empty.
v
Upgrading controller firmware from version 05.xx.xx.xx to version 06.xx.xx.xx
requires that there be no I/O activity to the DS4000 storage subsystems. You
must schedule down time for the upgrade. However, upgrading controller
firmware from one 06.xx.xx.xx version to a different 06.xx.xx.xx version does not
require that I/O activity be stopped.
ESM failover support considerations
Upgrading to DS4000 EXP100 R3 enables full failover support in case of loss of
connectivity due to bad components in the drive paths or due to ESM failure. It also
provides support for the new 400 GB SATA drive option/CRU/FRU and the new
250G SATA drive CRU/FRU along with quality enhancements.
Without DS4000 EXP100 R3 support, each ESM in the DS4000 EXP100 drive
expansion enclosure manages only half of the drives in the enclosure. The ESM on
the left side manages drives at odd-numbered slots (1, 3, 5, 7, 9, 11, 13), and the
ESM on the right side manages drives at even-numbered slots (2, 4, 6, 8, 10, 12,
14). As a result, half of the EXP100 drives could become inaccessible to the
controllers if an ESM fails. You can avoid this situation by upgrading your firmware
to enable DS4000 EXP100 R3 support.
Recommendation: IBM strongly recommends upgrading firmware to R3 support.
Important: For full ESM failover capability, the controller firmware must be either
version 5.41.5x.xx or version 06.xx.xx.xx (or later), and the ESM firmware must be
version 9554, 956x, or later. After you upgrade your EXP100 ESM firmware to
version 9554 (EXP100 R2) or version 956x (EXP100 R3), which support full
high-availability, you cannot downgrade the ESM firmware back to version 953x
(EXP100 R1), which supports only limited high-availability.
Attention: See the instructions and configuration guidelines in “ESM failover
architecture” on page 24 before you create arrays using drives in DS4000 EXP100
enclosures.
Determining firmware levels
There are two different methods to determine the DS4000 storage subsystem and
the EXP100 firmware versions. Each method uses the DS4000 Storage Manager
client that manages the DS4000 storage subsystem with the attached EXP100
expansion enclosure.
Method One:
Go to the Subsystem Management window and select View → Storage Subsystem
Profile . When the Storage Subsystem Profile window opens, select the All tab and
scroll through the Profile For Storage Subsystem to locate the following information.
Note: The Profile For Storage Subsystem contains all the profile information for the
entire subsystem. Therefore, it may be necessary to scroll through a large
amount of information to locate the firmware version numbers.
Chapter 1. Introduction
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