IBM DS6000 Manual Do Utilizador

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IBM System Storage DS6000 Series: Copy Services with IBM System z
Date/Time: November 22, 2005 4:45:34 PM EET IBM DSCLI Version: 5.1.0.204 DS: IBM.2105-22399
CMUC00234I lspprc: No Remote Mirror and Copy found.
After the volume pairs have been deleted, the host systems can be IPLed from the target 
volumes on the DS6000 and the applications can start. To avoid duplicate volser 
messages and the related operator replies during IPL, physically disconnect the ESS 800 
source system from the host, or change ESCON/FICON director configurations as 
relevant.
7. As a final clean-up step, we removed the paths between the ESS 800 and the DS6000. 
We did this using CLI in one-shot mode; see Example 21-19.
Example 21-19   Script delpath.cli
C:\IBM\DSCLI>dscli -cfg ess-22399.prf rmpprcpath -dev ibm.2105-22399 -remotedev 
ibm.1750-1300247 -quiet 05:02
Date/Time: November 22, 2005 4:57:47 PM EET IBM DSCLI Version: 5.1.0.204 DS: IBM.2105-22399
CMUC00150I rmpprcpath: Remote Mirror and Copy path 05:02 successfully removed.
C:\IBM\DSCLI>dscli -cfg ess-22399.prf lspprcpath -dev ibm.2105-22399 05
Date/Time: November 22, 2005 4:58:25 PM EET IBM DSCLI Version: 5.1.0.204 DS: IBM.2105-22399
Src Tgt State   SS   Port  Attached Port Tgt WWNN
=========================================================
05  08  Success 8000 I0088 I0002         5005076303FFC08F
05  06  Success 6000 I000C I0103         500507630EFFFE16
Although this example was carried out with CKD volumes, the procedure applies equally well 
to open systems volumes, because the same DS CLI commands are used for open systems. 
21.2.2  Cascading alternative
The preceding example assumes that the source volumes on the ESS 800 are simplex. 
However, they could also be secondary volumes of existing Global Copy or Metro Mirror 
pairs. In that case, we could set up a cascaded Global Copy relationship by specifying the 
-cascade
 parameter on the 
mkpprc
 command in step 4 of the previous example, as shown in 
Example 21-20   Establish cascaded pairs
C:\IBM\DSCLI>dscli -cfg ess-22399.prf mkpprc -dev ibm.2105-22399 -cascade 
remotedev ibm.1750-1300247 -type gcp -mode full 050a:023a
Date/Time: November 25, 2005 10:28:17 AM EET IBM DSCLI Version: 5.1.0.204 DS: 
IBM.2105-22399
CMUC00153I mkpprc: Remote Mirror and Copy volume pair relationship 050A:023A successfully created.
C:\IBM\DSCLI>dscli -cfg ess-22399.prf lspprc -dev ibm.2105-22399 050a
Date/Time: November 25, 2005 10:28:42 AM EET IBM DSCLI Version: 5.1.0.204 DS: 
IBM.2105-22399
ID        State               Reason Type        SourceLSS Timeout (secs) Critical Mode Fir
===========================================================================================
011A:050A Target Copy Pending -      Global Copy 01
 unknown        Disabled 
050A:023A Copy Pending        -      Global Copy 05        unknown        Disabled 
Here, 
011A
 is the source volume, 
050A
 is the intermediate volume, and 
023A
 is the target 
volume. The 
lspprc
 command shows the status of both volume pairs where the intermediate 
volume 
050A
 belongs. 
011A:050A
 is the first pair where 
050A
 is the secondary, and 
050A:023A
 
is the second pair where 
050A
 is the cascading primary.