Implementing the IBM Storwize V5000

332 Implementing the IBM Storwize V5000

Figure 7-58 Migrate Image Mode Volume into a regular storage pool

The migration internally uses the volume copy function, which creates a second copy of the

existing volume in the chosen target pool. For more information about the volume copy

function, see Chapter 8, “Advanced host and volume administration” on page 349.

The original volume copy on the image mode MDisk is deleted and the newly created copy is

kept.

7.3.3 MDisk by Pools panel

The MDisks by Pools panel (as shown in Figure 7-59) displays information about all MDisks

made of internal and external storage. The MDisks are categorized by the pools to which they

are attached.

Figure 7-59 MDisk by Pool window

Chapter 7. Storage pools 333

The following default information is provided:

򐂰 Name

The MDisk or the storage pool name that is provided during the configuration process.

򐂰 ID

The MDisk or storage pool ID that is automatically assigned during the configuration

process.

򐂰 Status

The status of the MDisk and storage pool. The following statuses are possible:

– Online

All MDisks are online and performing optimally.

– Degraded

One MDisk is in degraded state (for example, missing SAS connection to enclosure of

member drives or a failed drive with no spare available). As shown in Figure 7-60, the

pool also is degraded.

Figure 7-60 One degraded MDisk in pool

– Offline

One or more MDisks in a pool are offline. The pool (Pool3) also changes to offline, as

shown in Figure 7-61.

Figure 7-61 Offline MDisk in a pool

򐂰 Capacity

The capacity of the MDisk. The capacity is shown for the storage pool, which is the total of

all the MDisks in this storage pool. The usage of the storage pool is represented by a bar

and the number.

򐂰 Mode

An MDisk features the following modes:

–Array

Array mode MDisks are constructed from internal drives by using the RAID

functionality. Array MDisks are always associated with storage pools.