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v Before you migrate hard disk drives, perform the following steps to establish
v Not all combinations of the supported storage enclosures are supported as
v Check for drive compatibility in a storage subsystem configuration before you
v Always connect the storage subsystem controller drive channel port to either the
v Ensure that the enclosure IDs of each storage enclosure in a redundant drive
The following procedure combines the steps to add storage enclosures that contain
new drives to a storage subsystem configuration with the steps to migrate storage
enclosures. There are indicators in the steps that are specific to either adding or
migrating enclosure tasks. If you are migrating storage enclosures, do not perform
the steps that are indicated as being only for adding storage enclosures:
performing steps for adding storage enclosures might cause the deletion of the
logical drive configuration in the migrated hard disk drives.
Step 1: Preliminary activities
Before you add or migrate storage enclosures, complete the following steps:
1. Ensure that the power to the storage subsystem is turned on and the storage
2. Perform a collect all support data bundles and save the storage subsystem
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IBM System Storage DCS Series with Gen2 controllers Hard Disk Drive and Storage Enclosure Installation and Migration
Guide
drive model compatibility:
1. Check the drive CRU form factor options.
2. If the form factors are the same, check to determine whether the subsystem
supports the drive. If the form factors are not the same, there are no
replacement parts such as bezels and drive trays. For more information, see
the announcement letter and the Installation, Users, and Maintenance Guide for
your storage subsystem, and your IBM marketing representative or
authorized reseller.
3. Ensure that the drive can operate at the storage subsystem drive
loop/channel Fibre Channel or SAS speed. For more information, see
"Verifying hard disk drive model compatibility" on page 8.
storage enclosures intermixed behind storage subsystems.
insert a drive in an empty drive slot.
top or bottom EXP3800 or DCS3700 storage expansion enclosure ESM drive port.
loop/channel pair behind a storage subsystem have unique values in the single
digit (x1) position.
subsystem is in Optimal state.
If this is a migrating enclosure task, also ensure that the subsystem in which
the enclosures are to be migrated is turned on and is in Optimal state. For more
information, see the Recovery guru for DCS3700 or DCS3860 with Gen2
controllers storage subsystems, or "Bringing storage subsystems and drive
loops into optimal state" on page 11. You can perform this procedure while the
storage subsystem is processing I/O from or to the host server; however,
because the drive loops are interrupted momentarily during the addition
process, schedule any additions to occur during time periods of low I/O
between the storage subsystem and host servers.
Review the readme file and the IBM System Storage DS Storage Manager Version
11.2 Installation and Host Support Guide that is associated with the
operating-system environment of the host servers that connect to the storage
subsystem for any additional restrictions or required preparation tasks that are
specific to your operating-system environment. To access the latest IBM System
Storage DS Storage Manager Version 11.2 Installation and Host Support Guide, go to
http://www.ibm.com/systems/support/storage/disk/.
configuration.
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