HP StorageWorks External Storage XP user guide for the XP12000, XP10000, SVS200 (T1706-96009, October 2007)

guide for XP Disk Arrays or the HP StorageWorks XP Remote Web Console user guide for
XP12000/XP10000/SVS200.
6. For the local array, use the Command View XP or XP Remote Web Console Licensing module to
remove the External Storage XP license key. For instructions, see the HP StorageWorks Command
View XP user guide for XP Disk Arrays or the HP StorageWorks XP Remote Web Console user
guide for XP12000/XP10000/SVS200.
Limitations on External Storage XP operations
• External LU
s can be mapped as any CU:LDEV combination from 00:00 to 3F:FF.
• Only ports in SLPR0 can be set as external ports.
• DonotaccessanyexternalstoragevolumethatismappedasanExternalStorageXPvolume
from a host connected directly to the external array. Also, do not access an External Storage XP
mapped external array volume using the external array's functions (for example, local replication).
After mapping an external disk volume as a local array volume, access the mapped external
disk volu
me only via the local array.
• Except on the MSA, a host can directly access external array volumes that have not been mapped
as local array volumes.
• Continuo
us Access XP P-VOLs, S-VOLs, and journal volumes are not supported on MSA arrays.
• HPdoesnotrecommendthatvolumesinvolvedwithSnapshotXPresideonexternalMSAarrays.
• If you map an external LU that is more than 2 TB with the setting of OPEN-V emulation type, you
can access data stored in the fieldupto2TB.Youcannotaccessdatastoredinthefield over 2 TB.
• When ma
pping a volume that has a capacity of 2 TB or less in the external array and (external
LU) wit
h the OPEN-V emulation type, the LU is defined as an internal LDEV with the same
capacity as the mapped external LU. That is, no space is forfeited for management space, and no
formatting of that data occurs. Therefore, OPEN-V is recommended.
Figure 11 Example of external LU with 2 TB or less
• If you map an external LU that is equal to or greater than 575.98 GB with an OPEN emulation
type other than OPEN-V, you can access data stored in the fieldupto575.98GB.Youcannot
access data stored in the field over 575.98 GB.
However, for emulation types with a small base capacity, some of the field of 575.98 GB might not be
available. For more information, see Required volume capacity for emulation types.
• If you map an external LU that is equal to or greater than 575.98 GB with a 3380 mainframe
emulation type, you can access data stored in the field up to 575.98 GB. You cannot access data
stored in the field over 575.98 GB.
However, for emulation types with a small base capacity, some of the field of 575.98 GB might not be
available. For more information, see Required volume capacity for emulation types.
• If you map an external LU that is equal to or greater than 695.98 GB with a 3390 mainframe
emulation type, you can access data stored in the field up to 695.98 GB. You cannot access data
stored in the field over 695.98 GB.
However, for emulation types with a small base capacity, some of the field of 695.98 GB might not be
available. For more information, see Required volume capacity for emulation types.
External Storage XP user guide
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