Shark DG-3530 Installation Guide download pdf (Page 41)

VxVM Disk Array Configuration Updates

DMP and ATF Driver Co-existence Procedure

The following warning messages may be displayed after the ATF driver is forceloaded by

the operating system (this is required for DMP co-existence with the ATF driver). The

messages are similar to the following:

WARNING: atf[ 0/ 0/ 1/ 0]:No peer found.

WARNING: atf[ 0/ 0/ 1/ 1]:No peer found.

WARNING: atf[ 0/ 0/ 1/ 2]:No peer found.

These messages are normal and appear only when a DG CLARiiON connected to the

system is single pathed. If it is dual pathed, these messages should not appear. You can

safely ignore these warnings because the co-existence of DMP and ATF is not affected by

these messages.

Sun StorEdge A5x00 Array

This section pertains to the A5000, A5100, and A5200 disk arrays. These disk arrays are

claimed by VxVM (DMP) under the SEAGATE category.

When a cable connecting any of these disk arrays to the host is removed and the

commands drvconfig, disks, and vxdctl enable are executed on the host, DMP

does not display the pathnames in the standard c#t#d#s# format. Instead, the NONAME

string is displayed to represent the name of the removed path.

For example, assume that a host is connected to one of the A5x00 disk arrays. That disk

array has two fibre cables connecting it to the host. There is one disk on the disk array. The

two paths to this disk are called /dev/[r]dsk/c1t33d0s2 and

/dev/[r]dsk/c2t33d0s2. When the disk is used by VxVM, the vxdisk list

<daname> command executed on this disk displays the following:

# vxdisk list c1t33d0s2

Device: c1t33d0s2

devicetag: c1t33d0

type: auto

hostid: gluon.veritas.com

disk: name=rootdisk id=933470913.1042.gluon.veritas.com

group: name=rootdg id=933470911.1025.gluon.veritas.com

info: format=sliced, privoffset=1, pubslice=4, privslice=3

flags: online ready autoconfig autoimport imported

pubpaths: block=/dev/vx/dmp/c1t33d0s6 char=/dev/vx/rdmp/c1t33d0s6

privpaths: block=/dev/vx/dmp/c1t33d0s7 char=/dev/vx/rdmp/c1t33d0s7

version: 2.1

iosize: min=512 (bytes) max=2048 (blocks)

public: slice=6 offset=1 len=35363560 disk_offset=5112

private: slice=7 offset=1 len=4711 disk_offset=2556

update: time=933471058 seqno=0.9

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Shark DG-3530 Installation Guide Page 41