Storage

(Edit Section ↓)

IBM Sub System Device Driver (SDD)

List all Vpath devices and their states 

 # lsvpcfg
 vpath0 (Avail pv lotus02) 50014562 = hdisk2 (Avail ) hdisk19 (Avail )
 vpath1 (Avail pv lotus02) 50114562 = hdisk3 (Avail ) hdisk20 (Avail )
  1. datapath query device 
 Total Devices : 17
 DEV#:   0  DEVICE NAME: vpath0  TYPE: 2105F20   SERIAL: 50014562
 
 Path#              Adapter/Hard Disk  State  Mode     Select     Errors
     0               fscsi1/hdisk2     OPEN   NORMAL    2634286     0
     1               fscsi0/hdisk19    OPEN   NORMAL    2639371     0
  1. datapath query adapter 
 Active Adapters :8
 Adpt#     Name   State     Mode             Select     Errors  Paths  Active
    0   fscsi2  NORMAL   ACTIVE          799440626          0     44      44
    1   fscsi0  NORMAL   ACTIVE          797798530          0     44      44
    2   fscsi1  NORMAL   ACTIVE          785716308          0     44      44

To fixe a DPO Vpath Volume group that has mixed vpath and hdisk volumes. 

 # dpovgfix vg00
(Edit Section ↓)

EMC Powerpath

To configure all the emc hdisks, run emc_cfgmgr script. This script invokes the AIX cfgmgr tool to probe each adapter bus separately

To remove the Symettrix hdisks 

 # lsdev -CtSYMM* -Fname | xargs -n1 rmdev -dl

To remove hdisks corresponding to CLARiiON devices 

 # lsdev -CtCLAR* -Fname | xargs -n1 rmdev -dl

To probe all emc disks 

 # inq

To set up multipathing to the root device 

 # pprootdev on

To Remove all hdiskpower devices 

 # lsdev -Ct power -c disk -F name | xargs -n1 rmdev -l

To find out which hdiskpower device contains hdsik132 

 # powermt display dev=hdisk132
 Pseudo name=hdiskpower38
 Symmetrix ID=000100006216
 Logical device ID=006C
 state=alive; policy=SymmOpt; priority=0; queued-IOs=0
 
 ------------ Host ---------- - Stor - -- I/O Path - -- Stats ---
 ### HW Path         I/O Paths  Interf. Mode   State  Q-IOs Errors
 
 0   fscsi0          hdisk132    FA 14bA active alive  0     0
 1   fscsi1          hdisk223    FA 14bB active alive  0     0
 1   fscsi1          hdisk314    FA 14bA active alive  0     0
(Edit Section ↓)

HP Autopath

 # dlnkmgr view -drv
 PathID HDevName  Device  LDEV
 000000 dlmfdrv0  hdisk2  XP1024.40318.04DB
 000001 dlmfdrv0  hdisk30 XP1024.40318.04DB
 000002 dlmfdrv1  hdisk3  XP1024.40318.0522
 000003 dlmfdrv1  hdisk31 XP1024.40318.0522

To remove all the DLM drives 

 # dlmrmdev
 dlmfdrv0 deleted
 dlmfdrv1 deleted
 dlmfdrv10 deleted

To clear the SCSI reserves on the disks 

 #dlmpr -a -c

/usr/DynamicLinkManager/drv/dlmfdrv.conf

(Edit Section ↓)

MPIO

To list all the paths which are in Enabled status 

 # lspath -s ena -Fname -p fscsi0

 # chpath -s ena -l hdisk0
 paths Enabled