Table of Contents
Advertisement
Chapter 3. Adding or migrating storage enclosures
This chapter describes the procedure to add storage enclosures in a storage
subsystem. It also describes the procedure to migrate storage enclosures from an
existing storage subsystem to another working optimal storage subsystem. If the
destination storage subsystem is a working configuration, follow the procedure in
this chapter to move one or all of the storage enclosures from another storage
subsystem configuration into it. The storage subsystem is in Working state when
the storage subsystem controllers successfully start with at least two drives in the
drive channel.
Note: To migrate the drives in the integrated drive-controller enclosure to another
storage subsystem configuration without an integrated drive-controller enclosure,
you must purchase a storage enclosure for these drives.
Important: Observe proper ESD procedures when you handle electronic
equipment. For more information, see "Handling static-sensitive devices" on page
14.
Attention:
Make additions to the storage subsystem only while the power is turned on and
the storage subsystem is in Optimal state. For more information, see "Bringing
storage subsystems and drive loops into optimal state" on page 11. You can
complete this process while the storage subsystem is receiving I/O from the host
server; however, because the drive loops are interrupted momentarily during the
addition process, schedule the addition to occur during periods of low I/O
between the storage subsystems and host servers.
Considerations
The following notes describe information that you must consider when you add a
hard disk drive to a controller or a storage enclosure:
v Updated readme files contain important configuration and procedural
v Never alter the physical configuration of a storage subsystem while it is turned
v Every storage subsystem model has unique storage enclosure cabling rules. See
v When you migrate hard disk drives from multiple storage subsystems to a single
© Copyright IBM Corp. 2008, 2015
information that supersede information in this document. Always check the
readme file before you perform any procedure or activity that is described in
this document. To access the most recent readme file, see "Finding Storage
Manager software, controller firmware, and readme files" on page 57.
off unless you are instructed to do so as part of a storage subsystem
configuration procedure. Specifically, never attach storage components to or
remove storage components from a configured storage subsystem while it is
turned off.
the Installation, User's and Maintenance Guide for your storage subsystem for
information about the storage enclosure cabling rules. You must follow the
cabling rules to maintain proper storage subsystem operation.
storage subsystem, move all of the hard disk drives from each storage subsystem
as an independent set. Before you move the next set of hard disk drives, ensure
that all the hard disk drives from the previous set are transferred. If you do not
transfer hard disk drives as sets, the newly relocated arrays/logical drives might
not appear in the Storage Subsystem Management window.
25
Advertisement
Table of Contents
