migrated hard disk drives. Instead, see the instructions in “Migrating storage
enclosures with hard disk drives that have defined logical drive configurations”
on page 27.
v
Perform the prerequisites that are described in Chapter 1, “Prerequisites to
adding capacity and hard disk drive migration,” on page 1 before you perform
the activities that are described in this chapter.
To add new drives to the storage subsystem, complete the following steps:
1.
Insert drives (one at a time) into the empty drive bays.
2.
Wait (up to 5 minutes) until each drive fully spins up and appears in the IBM
DS Storage Subsystem Management window before you insert the next drive.
3.
If the drives were shown with configuration, select the Drive icon in the
Physical view and then select the Storage Subsystem Management window
menu function Advanced -> Recovery -> Initialize -> Drive to erase the
configuration data in the drive.
4.
If the new drive is an FDE drive and you do not have the storage subsystem
security key to unlock it, use the secure erase function to reprovision the drive
before you use it.
Migrating hard disk drives
When you migrate hard disk drives from multiple storage subsystems to a single
storage subsystem, move all of the hard disk drives from each storage subsystem
as an independent set. Ensure that all hard disk drives are transferred before you
move another set. If you do not transfer hard disk drives as sets, the newly
relocated arrays/logical drives that are defined by using these drives might not
appear in the Storage Subsystem Management window.
The procedure for migrating hard disk drives that contain configuration data that
you want to preserve is in the following sections:
v
“Step 1: Preliminary activities” on page 16
v
“Step 2: Verifying drive migration enable settings” on page 17
v
“Step 4: Removing drives” on page 18
Important:
Do not use the procedure in this section if you are unsure of the quality
of the data on the hard disk drives. Importing incorrect configuration data could
cause a storage subsystem failure. Ensure that the storage subsystem has the
recommended controller firmware version provided on the IBM Support website. If
possible, clear the metadata by installing the drive in an expansion enclosure that
is directly connected to the host; then, either format the drive or write zeros
pattern to the last 1 GB of drive data.
Drives with disk pools cannot be migrated from one subsystem to another. The
data in the disk pool must be backed up to a tape or to drives that are part of
traditional arrays. Then, the data is restored to newly created disk pools in another
storage subsystem.
IBM DS Storage Manager 10.xx or later with controller firmware level 07.xx.xx.xx
or later supports import migration of RAID arrays that contain logical drives with
data when the following prerequisites and limitations are observed:
v
RAID arrays are created by an IBM storage subsystem that uses controller
firmware level 06.xx.xx.xx or later.
Chapter 2. Adding or migrating hard disk drives
15
Summary of Contents for System Storage DCS Series
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