IBM System storage DS6000 Series Redbook page 33
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Also See for System storage DS6000 Series:
- Redbooks (406 pages) ,
- Attachment manual (298 pages) ,
- Introduction and planning manual (119 pages)
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Example 2-1 Difference between a DS6000 Storage Unit and DS6000 SFI
dscli> lssu
Date/Time: 13 November 2005 19:21:17 IBM DSCLI Version: 5.1.0.204
Name
ID
=========================================================
13-00247
IBM.1750-1300247
dscli> lssi
Date/Time: 13 November 2005 19:21:44 IBM DSCLI Version: 5.1.0.204
Name ID
Storage Unit
============================================================================
-
IBM.1750-1300247 IBM.1750-1300247
DS8000 SFI
For the DS8000, the SFI concept is necessary because a DS8000 can be ordered as a model
9A2 or 9B2. In these models all resources in the DS8000 are divided between two separate
machine images. This means that to all attached hosts, a single DS8000 Storage Unit
effectively contains two DS8000s. It is like having two separate machines in one physical box.
This means that when using the DS GUI or the DS CLI, you have to be very clear whether
you are working with the SFI or with the Storage Unit. For most operations you always work
with an SFI. You can tell the difference very easily. The serial number of the Storage Unit
always ends in zero. The serial number of the first SFI always ends in 1. If you have ordered
a model 2107-9A2 or 2107-9B2, then you will also have a second SFI. The serial number of
the second SFI always ends in 2.
DS8000 Model 921 and 922 SFI example
In Example 2-2, we used the DS CLI to connect to a DS8000 Management Console. We
issued the lssu command to display the DS8000 Storage Unit of a 2107-922. We then issued
the lssi command to display the DS8000 Storage Image on that Storage Unit. The Storage
Unit serial number is 7520780. The SFI serial number is 7520781. Note how the Storage Unit
and the SFI have different WWNNs.
Example 2-2 Difference between a DS8000 Storage Unit and DS8000 SFI - Model 922
dscli> lssu
Date/Time: 13 November 2005 19:21:01 IBM DSCLI Version: 5.1.0.204
Name
ID
=============================================================
2107-7520780
IBM.2107-7520780
dscli> lssi
Date/Time: 13 November 2005 19:21:21 IBM DSCLI Version: 5.1.0.204
Name
ID
=================================================================================
ATS_3_EXP
IBM.2107-7520781
DS8000 Model 9A2 SFI example
In Example 2-3, we used the DS CLI to connect to a DS8000 Management Console. We
issued the lssu command to display the DS8000 Storage Unit of a 2107-9A2. We then issued
the lssi command to display the DS8000 Storage Images for that Storage Unit. The Storage
Unit serial number is 7520780. The SFI serial numbers are 7520781 and 7520782. The
Storage Unit and the SFIs all have different WWNNs.
Example 2-3 Difference between a DS8000 Storage Unit and DS8000 SFI - Model 9A2
dscli> lssu
Date/Time: 13 November 2005 19:25:25 IBM DSCLI Version: 5.1.0.204
Name
ID
Model WWNN
pw state
511
500507630EFFFE16
On
Model WWNN
511
500507630EFFFE16
Model WWNN
922
5005076303FFF9A5
Storage Unit
Model WWNN
IBM.2107-7520780
922
Model WWNN
State ESSNet
Online Enabled
pw state
On
State ESSNet
5005076303FFC1A5
Online Enabled
pw state
Chapter 2. Copy Services architecture
9
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