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2. Turn off the power to the storage enclosures and move them to the storage
Step 4: Verifying the drive migration enable settings
Attention: There is no need to verify drive migration enable settings in storage
enclosures with controller firmware level 7.xx or later and Storage Manager
software version 10.xx or later.
Step 5: Installing and setting storage enclosure IDs
Note: The following procedure is for migrating enclosures with drives that have
defined arrays/logical drives only. Do not perform this procedure if you are
adding enclosures with new drives or drives that contain unneeded data.
To install and set storage enclosure IDs, complete the following steps:
1. When the storage enclosures and drives are at the location of the storage
2. Ensure that the enclosure ID of each enclosure in a storage subsystem
Note: Before you migrate hard disk drives, be sure to determine the compatibility
of drive model capacity, interface type, and speed. For specific information about
your drive options in the most current environment, see "Verifying hard disk drive
model compatibility" on page 8.
30
IBM System Storage DCS Series with Gen2 controllers Hard Disk Drive and Storage Enclosure Installation and Migration
Guide
v ID conflict
c. Ensure that the controller drive loop LED remains lit. If the controller drive
loop LED is turned off, there are problems in the drive loop, and the loop
initialization primitives (LIPs) are generated by the storage subsystem
controller.
d. In the DS Storage Manager Client Subsystem Management window, verify
that there are no Loss of ESM path redundancy errors in the storage
enclosures that are not migrated.
Do not modify the second drive loop in the redundant drive loop pair until
you are sure that the first modified drive loop is operating in Optimal state.
subsystem to which you plan to migrate them.
Attention: A storage enclosure with 60 drives weighs up to 101 kg (223 lb). If
necessary, remove the drives and other storage enclosure components to reduce
the weight of the unit for easier handling. Mark each drive before you remove
it so that you can return it to the same drive bay when you reassemble the
components. The DCS3700 and EXP3800 storage enclosures might require a lift
tool and a relocation kit to move the storage enclosures from one location to
another. For more information, see the storage enclosure documentation.
subsystem to which you are migrating them, install them into the rack. If the
drives were removed during transit, return them to the bays from which they
were removed, unlatched and no less than 1.27 cm (0.5 in.) away from their full
insertion points in the drive bays. If the drives were not removed, unlatch and
pull them out no less than 1.27 cm (0.5 in.) away from their full insertion points
in the drive bays.
configuration is unique. For more information, see "Adding new storage
enclosures with new hard disk drives" on page 27.
Important: If the storage subsystem to which the storage enclosure attaches is a
DCS3700 or DCS3860 storage subsystem with Gen2 controllers, the IDs of
additional storage enclosures must be unique to the storage subsystem. The
enclosure IDs of these storage subsystems is normally set to 00 at the factory.
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