05-11-2009
I have not mirrored the VIO_1 with VIO_2
Here how it is setup at the moment.
VIO_2 = NOT ACTIVE
VIO_1 = Active
VIO_1 has 3 internal DISK
hdisk0 -- rootvg
hdisk1 -- NONE
hdisk2 -- lpars_rootvg
so what I have done, I have mirrored hdisk0 with hdisk1
hdisk0 -- rootvg
hdisk1 -- rootvg
hdisk2 -- lpars_rootvg
hdisk2 --> I have made small LVs and given it to LPARS
mklv -lv lpar_1_rootvg lpars_rootvg 50G
mklv -lv lpar_2_rootvg lpars_rootvg 50G
mklv -lv lpar_3_rootvg lpars_rootvg 50G
mklv -lv lpar_4_rootvg lpars_rootvg 50G
then assigned them to LPARS
mkvdev -vdev lpar_1_rootvg -vadapter vhost1
mkvdev -vdev lpar_2_rootvg -vadapter vhost2
mkvdev -vdev lpar_3_rootvg -vadapter vhost3
mkvdev -vdev lpar_4_rootvg -vadapter vhost4
so each lpar now has a HDISK0
Then I have made another hdisk thru
mklv -lv aix1rootlvm rootvg 50G hdisk1
mklv -lv aix2rootlvm rootvg 50G hdisk1
mklv -lv aix3rootlvm rootvg 50G hdisk1
mklv -lv aix4rootlvm rootvg 50G hdisk1
and assigned to lpars on different/new VHOSTx
So now each LPAR has
HDISK0
HDISK1
and I mirrored them.
LHEA presented to each LPAR.. Not thru VIO ****)
1) How can I utilise VIO_SERVER_2
2) Failover to VIO_SERVER_2
3) Load Balancing Concept in VIOS ?
Thanks
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LEARN ABOUT FREEBSD
disktab
DISKTAB(5) BSD File Formats Manual DISKTAB(5)
NAME
disktab -- disk description file
SYNOPSIS
#include <disklabel.h>
DESCRIPTION
Disktab is a simple database which describes disk geometries and disk partition characteristics. It is used to initialize the disk label on
the disk. The format is patterned after the termcap(5) terminal data base. Entries in disktab consist of a number of `:'-separated fields.
The first field for each entry gives the names by which a disk's entry may be selected, separated by `|' characters. The last name given
should be a long name fully identifying the disk.
The optional fields for each entry are:
ID Type Description
ty str Type of disk (e.g. removable, winchester)
dt str Type of controller (e.g. SMD, ESDI, floppy)
ns num Number of sectors per track
nt num Number of tracks per cylinder
nc num Total number of cylinders on the disk
sc num Number of sectors per cylinder, ns*nt default
su num Number of sectors per unit, sc*nc default
se num Sector size in bytes, DEV_BSIZE default
sf bool Controller supports bad144-style bad sector forwarding
rm num Rotation speed, rpm, 3600 default
sk num Sector skew per track, default 0
cs num Sector skew per cylinder, default 0
hs num Headswitch time, usec, default 0
ts num One-cylinder seek time, usec, default 0
il num Sector interleave (n:1), 1 default
d[0-4] num Drive-type-dependent parameters
bs num Boot block size, default BBSIZE
sb num Superblock size, default 0
ba num Block size for partition `a' (bytes)
bd num Block size for partition `d' (bytes)
be num Block size for partition `e' (bytes)
bf num Block size for partition `f' (bytes)
bg num Block size for partition `g' (bytes)
bh num Block size for partition `h' (bytes)
fa num Fragment size for partition `a' (bytes)
fd num Fragment size for partition `d' (bytes)
fe num Fragment size for partition `e' (bytes)
ff num Fragment size for partition `f' (bytes)
fg num Fragment size for partition `g' (bytes)
fh num Fragment size for partition `h' (bytes)
oa num Offset of partition `a' in sectors
ob num Offset of partition `b' in sectors
oc num Offset of partition `c' in sectors
od num Offset of partition `d' in sectors
oe num Offset of partition `e' in sectors
of num Offset of partition `f' in sectors
og num Offset of partition `g' in sectors
oh num Offset of partition `h' in sectors
pa num Size of partition `a' in sectors
pb num Size of partition `b' in sectors
pc num Size of partition `c' in sectors
pd num Size of partition `d' in sectors
pe num Size of partition `e' in sectors
pf num Size of partition `f' in sectors
pg num Size of partition `g' in sectors
ph num Size of partition `h' in sectors
ta str Partition type of partition `a' (4.2BSD file system, swap, etc)
tb str Partition type of partition `b'
tc str Partition type of partition `c'
td str Partition type of partition `d'
te str Partition type of partition `e'
tf str Partition type of partition `f'
tg str Partition type of partition `g'
th str Partition type of partition `h'
FILES
/etc/disktab
SEE ALSO
getdiskbyname(3), bsdlabel(8), newfs(8)
HISTORY
The disktab description file appeared in 4.2BSD.
BSD
October 14, 2006 BSD