Ibm DS8000 Manual de usuario descargar pdf (Pagina 193)

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101

Chapter 9. Configuration planning 171

Figure 9-4 User authorize to FlashCopy 25 TB of CKD data

AS illustrated in Figure 9-5 on page 172, the user decides to change the license scope from

CKD to ALL and FlashCopy the FB data as well. This increase of licensed scope from CKD to

ALL is non-disruptive. Changing the license scope from FB to CKD, or CKD to FB (lateral

change), or reduction in license scope from ALL to FB or CKD, will be disruptive and will

require an IML. In this example, the user decides to FlashCopy 10 TB of FB and 12 TB of

CKD data. The user has disk capacity of 20 TB of FB and 25 TB of CKD. In order to

implement the changes, the user now has to purchase a Point-in-Time Copy function

authorization of 45 TB, the total FB and CKD capacity.

20 TB

DS8000 with 45 TB disk capacity in total,

25 TB of CKD FlashCopy authorization with

license scope of CKD,

45 TB of OEL Licensed function

25 TB

CKD

User cannot FlashCopy

any FB

User authorize to

FlashCopy

up to 25 TB

20 TB (FB) +

25 TB (CKD) +

--------

45 TB total capacity

--------

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Ibm DS8000 Manual de usuario Pagina 193

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