HP 3PAR Solaris Implementation Guide

Consult the HP 3PAR Management Console User’s Guide and the HP 3PAR Command Line Interface
Reference for complete details on exporting volumes and available options for the HP 3PAR OS
version that is being used on the HP 3PAR StoreServ Storage.
These documents are available on the HP SC website:
HP Support Center
NOTE: The commands and options available for creating a virtual volume may vary for earlier
versions of the HP 3PAR OS.
NOTE: For Solaris 10 MU11 on the x86 platform, when LUNs are first presented to the host,
there is a space on the disk label under format.
For example:
c2t50002AC0000300D0d0 <3PARdat-VV -3122 cyl 2557 alt 2 hd 128 sec 32>
Please refer to the HP SPOCK website for Solaris 10 MU11 patch requirements: HP SPOCK.
VLUN Exportation Limits Based on Host HBA Drivers
Even though the HP 3PAR StoreServ Storage supports the exportation of VLUNs with LUNs in the
range from 0 to 16383 the host driver may have a lower limit, as noted here:
Solaris qlc/emlxs drivers
• Supports the creation of LUNs with LUNs in the range from 0 to 16383.
• Support a theoretical quantity of 64K VLUNs (64-bit mode) or 4000 VLUNs (32-bit mode) per
Solaris HBA.
QLogic qla/Emulex lpfc
• Supports VLUNs with LUNs in the range from 0 to 255.
• Supports sparse LUNs (the skipping of LUNs).
• LUNs may be exported in non-ascending order (e.g., 5, 7, 3, 200).
• VLUNs can be exported on each interface.
• Only 256 VLUNs can be exported on each interface. If you export more than 256 VLUNs,
VLUNs with LUNs above 255 will not appear on the host server.
NOTE: HP 3PAR StoreServ Storage with LUNs other than 0 will be discovered even when there
is no VLUN exported with LUN 0. Without a LUN 0, error messages for LUN 0 may appear in
/var/adm/messages as the host server probes for LUN 0. It is recommended that a real LUN
0 be exported to avoid these errors.
The total number of SCSI devices that Solaris SPARC and x64 servers can reliably discover varies
between operating system versions, architecture, and server configurations. It is possible to export
more VLUNs from the HP 3PAR OS (HP 3PAR OS VLUN = SCSI device on host) than the server
can reliably manage. Contact Oracle for the maximum device capability of your installation. HP
tested up to 256 VVs, each exported as four VLUNs, resulting in the discovery of 1024 SCSI
devices by Solaris, without any issues being noted.
Virtual volumes of 1 terabyte and larger will only be supported using the Solaris EFI disk label and
will appear in the output of the Solaris format command without cylinder/head geometry. EFI
labeled disks are not currently supported with Veritas Volume Manager 4.0–4.1. More information
on EFI disk labels can be found in Solaris document 817-0798.
52 Allocating Storage for Access by the Solaris Host