Violin Memory 6000 Series Guide d'installation télécharger pdf (Page 17)

Connecting Violin Memory Arrays to IBM AIX and PowerVM

17 www.vmem.com

6.4 LUN Discovery

After creating LUNS and exporting them to the appropriate Initiator groups, you can discover LUNS inside the

guest LPAR using cfgmgr.

# cfgmgr

1. To identify what LUNS have been discovered,

# lsdev –Cc disk ( partial listing)

hdisk2 Available 04-00-01 VIOLIN Fibre Channel controller port

hdisk3 Available 04-00-01 MPIO VIOLIN Fibre Channel disk

hdisk4 Available 04-00-01 MPIO VIOLIN Fibre Channel disk

hdisk5 Available 04-00-01 MPIO VIOLIN Fibre Channel disk

NOTE : VIOLIN Fibre Channel Controller port is the SES device and not a usable LUN

2. To identify multiple paths detected for MPIO devices ( an example )

# lspath -l hdisk2 -F"name,parent,connwhere,path_id,status"

hdisk2,fscsi0,21000024ff35b6e2,1000000000000,0,Enabled

hdisk2,fscsi0,21000024ff3854e8,1000000000000,1,Enabled

hdisk2,fscsi2,21000024ff35b622,1000000000000,2, Enabled

hdisk2,fscsi2,21000024ff35b690,1000000000000,3, Enabled

In the above example , hdisk2 is a MPIO node which detects 4 logical paths via 2 HBA ports.

The violin PCM sets highlighted attributes on VIOLIN MPIO devices as shown below

# lsattr -El hdisk2 ( partial listing)

PCM PCM/friend/vmem_pcm Path Control Module True

PR_key_value none Persistante reservation value True

algorithm round_robin Algorithm True

q_type simple Queuing TYPE False

queue_depth 255 Queue DEPTH True

reassign_to 120 REASSIGN unit time out value True

reserve_policy no_reserve Reserve Policy True

rw_timeout 30 READ/WRITE time out value True

scsi_id 0x11300 SCSI ID True

start_timeout 180 START unit time out value True

timeout_policy retry_path Timeout Policy True

unique_id 2A1088DBB1141F91FF2009SAN ARRAY06VIOLINfcp Unique device identifier

False

ww_name 0x21000024ff3854e8 FC World Wide Name False

Violin Memory 6000 Series Guide d'installation Page 17