Sun StorEdge 3510: How to Map Partitions to Multiple Hosts in a SAN Using Host Filters

Asset ID:	1-71-1009196.1
Update Date:	2017-10-05
Keywords:

Solution Type Technical Instruction Sure

Solution 1009196.1 : Sun StorEdge 3510: How to Map Partitions to Multiple Hosts in a SAN Using Host Filters

Applies to:

Sun Storage 3511 SATA Array - Version Not Applicable and later
Sun Storage 3510 FC Array - Version Not Applicable and later
All Platforms

Goal

This document explains how to implement host filters on the Sun Storage 3510 FC Storage Array. Host filters, also referred to as LUN security, restrict the visibility of a logical disk partition to a specific set of host bus adapters (HBAs) in the fabric. This implementation is performed using the sccli interface, either in-band or out-of-band, to the array.

Solution

Prior to starting, you must document:

The cabling scheme of the array, and any switch zoning if a switch is being used.
The World Wide Port Numbers (wwpn) of the HBA's on the servers.
The logical disks and any subsequent partitions available and ready to be mapped.

With Solaris, there are many methods available to identify the wwpn of the HBA. Here, fcinfo is used.

# fcinfo hba-port   (parsed output)
   HBA Port WWN: 210000e08b19f245
        Manufacturer: QLogic Corp.
        Model: QLA2340
   HBA Port WWN: 210000e08b098df6
        Manufacturer: QLogic Corp.
        Model: QLA2340

With sccli, you can document your drive channels and partitions.

sccli> show channel
Ch Type    Media   Speed   Width PID / SID
--------------------------------------------
0 Host    FC(L)   2G      Serial 32 / 33
1 Host    FC(L)   2G      Serial 34 / 35
2 DRV+RCC FC(L)   2G      Serial 14 / 15
3 DRV+RCC FC(L)   2G      Serial 14 / 15
4 Host    FC(L)   2G      Serial 41 / 42
5 Host    FC(L)   N/A     Serial 43 / 44
6 Host    LAN     N/A     Serial N/A / N/A

sccli> show partition
LD/LV    ID-Partition        Size
-------------------------------------
ld0-00   33605BBC-00     272.96GB
ld1-00   2AE47FC1-00     136.48GB
ld2-00   32B69784-00     340.48GB
ld2-01   32B69784-01         75MB
ld2-02   32B69784-02        141MB
ld2-03   32B69784-03         50MB
ld2-04   32B69784-04      68.69GB
ld3-00   1BB648CF-00     408.94GB

You are now ready to create your mappings. We start without any mappings and a reference to the syntax of the map command

sccli> show map
sccli>
sccli> help map
map <partition> <ch>.<tgt>.<lun> [<wwpn> | <host-id>]

Let's map primary logical disk ld0-00 to the server, through host ports 0 and 4.

sccli> map 33605BBC-00 4.41.0 210000e08b19f245
sccli: mapping ld 33605BBC-00 to 4.41.0

sccli> map 33605BBC-00 0.32.0 210000e08b098df6
sccli: mapping ld 33605BBC-00 to 0.32.0

sccli> show maps
       Ch Tgt LUN   ld/lv   ID-Partition Assigned Filter Map
       ---------------------------------------------------------------------
        0 32   0   ld0     33605BBC-00   Primary   210000E08B098DF6
        4 41   0   ld0     33605BBC-00   Primary   210000E08B19F245

All subsequent partitions may be mapped in a similar fashion.

If the array is set up in point-to-point mode, only one target ID (PID/SID) is allowed per host port. Furthermore, only one of the two ports (upper and lower) on each host channel will be enabled. As soon as one port, either upper or lower, performs a fabric login, the other port is disabled.

This is a sub-set of <Document 1005313.1> Sun Storage 3000 Arrays: Troubleshooting Configuration Problems.

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