VxVM Striped Mirrors

Striped Mirrors

vxassist -g datadg make db001_v 10g layout=stripe,mirror stwidth=256 ncol=3 A1D0 A1D1 A1D3 A1D4 A1D5 A1D6
mkfs -F vxfs /dev/vx/rdsk/datadg/db001_v
mount -F vxfs /dev/vx/dsk/datadg/db001_v /var/temp

A simple concat
vxassist -g datadg make 10.1.0.3_v 5g layout=mirror A1L1 A1R1
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If vxassist fails to make a mirror we can use vxmake
USe vxprint to find unused space as below

sd A1D1-O4 - A1D1 13335804 4445268 - c1t8d0 ENA
sd A1D1-O3 - A1D1 17781072 4445268 - c1t8d0 ENA
sd A1D1-I4 - A1D1 53343216 4445268 - c1t8d0 ENA

tncbu01:root# vxmake -g datadg plex spare layout=stripe stwidth=64 sd=A1D1-O4,A1D1-O3,A1D1-I4,A1D1-I5,A1D1-I6,A1D2-04,A1D2-I4,A1D2-I5,A1D2-I6,A1D3-O3,A1D3-I3,A1D3-I4,A1D3-I5,A1D3-I6

vxmake -g datadg -U fsgen vol spare_v plex=spare

vxmake -g datadg plex spare2 layout=stripe stwidth=64 sd=A1D4-O5,A1D4-O4,A1D4-O3,A1D4-I4,A1D4-I5,A1D4-I6,A1D5-O5,A1D5-O4,A1D5-O3,A1D5-I4,A1D5-I5,A1D5-I6,A1D6-O3,A1D6-I3,A1D6-I4

vxplex att spare_v spare2

vxvol -g datadg start spare_v

newfs /dev/vx/rdsk/datadg/spare_v

vxvol -g datadg resync spare_v

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To manually configure each stage
disk offset (for 1st this is 0 then number in active column + number in next
column (length) for last vol)

1048640 = 1 gig

vxdg -g rootdg free
DISK DEVICE TAG OFFSET LENGTH FLAGS
rootdisk c1t0d0s2 c1t0d0 16386407 54737883 -
rootmirror c1t1d0s2 c1t1d0 12289806 58828707 -

vxmake -g rootdg sd root-db001 disk=rootdisk offset=16386407 len=4194560
vxmake -g rootdg sd root-db001a disk=rootmirror offset=16386407 len=4194560
vxmake -g rootdg sd root-db002 disk=rootdisk offset=20580967 len=4194560
vxmake -g rootdg sd root-db002a disk=rootmirror offset=20580967 len=4vxass194560
vxmake -g rootdg plex db001 layout=stripe stwidth=64 sd=root-db001,root-db001a
vxmake -g rootdg plex db002 layout=stripe stwidth=64 sd=root-db002,root-db002a
vxmake -g rootdg -o largefiles -Ufsgen vol db001_v plex=db001
vxmake -g rootdg -o largefiles -Ufsgen vol db002_v plex=db002
vxvol -g rootdg start db001_v
vxvol -g rootdg start db002_v
mkfs -F vxfs /dev/vx/rdsk/rootdg/db001_v
mkfs -F vxfs /dev/vx/rdsk/rootdg/db002_v
mkdir /db001 /db002
mount -F vxfs /dev/vx/dsk/rootdg/db001_v /db001
mount -F vxfs /dev/vx/dsk/rootdg/db002_v /db002
/usr/lib/fs/vxfs/fsadm -F vxfs -o largefiles /db001
/usr/lib/fs/vxfs/fsadm -F vxfs -o largefiles /db002
add entries to vfstab
/dev/vx/dsk/rootdg/db001_v /dev/vx/rdsk/rootdg/db001_v /db001 vxfs 3 yes largefiles
/dev/vx/dsk/rootdg/db002_v /dev/vx/rdsk/rootdg/db002_v /db002 vxfs 3 yes largefiles