From: Simon Crowther (SCrowthe@msxi-euro.com)
Date: Wed Mar 10 2004 - 11:28:13 EST
Hi
I am looking to clarify a situation I have,
a UFS mounted T3 Array (9x72's - 1 volume, raid 5) shows :
/dev/dsk/c7t1d0s6 492519522 210527050 277067277 44%
/newarchive
The exact same data also exists on a collection of 18GB disks in 2
D1000 shelves bound into what looks like one striped volume by vxvm
(I have never seen jbod disks configured in this way under vxvm
before?!)
I inherited the system with the data on just the vxvm partition, I am
migrating this to a recently added t3, the data on the t3 is ufs for the
mo, I intend to create a striped volume manager partition on the t3 in
time..
The df -k output for the old vxvm partition shows:
/dev/vx/dsk/vg01 265222840 210419859 28280697 89%
/opt/archive/vg01
My initial point to clarify is, why the "kbytes used" is so different
when the data is the same on each volume (all the files are tiffs, each
file matches up in size with its copy on the other volume)
My second clarification point, I will provide the vxprint output for
comments, why would someone configure the disks like this? I just dont
see what they were trying to achieve....
/ > vxprint -hAt
Disk group: rootdg
DG NAME NCONFIG NLOG MINORS GROUP-ID
DM NAME DEVICE TYPE PRIVLEN PUBLEN STATE
V NAME USETYPE KSTATE STATE LENGTH READPOL
PREFPLEX
PL NAME VOLUME KSTATE STATE LENGTH LAYOUT
NCOL/WID MODE
SD NAME PLEX DISK DISKOFFS LENGTH [COL/]OFF
DEVICE MODE
SV NAME PLEX VOLNAME NVOLLAYR LENGTH [COL/]OFF AM/NM
MODE
dg rootdg default default 0
1006630264.1025.msxgbsun3
dm disk01 c1t1d0s2 sliced 4711 35363560 -
dm disk02 c1t2d0s2 sliced 4711 35363560 -
dm disk03 c1t3d0s2 sliced 4711 35363560 -
dm disk04 c1t4d0s2 sliced 4711 35363560 -
dm disk05 c2t1d0s2 sliced 4711 35363560 -
dm disk06 c2t2d0s2 sliced 4711 35363560 -
dm disk07 c2t3d0s2 sliced 4711 35363560 -
dm disk08 c2t4d0s2 sliced 4711 35363560 -
dm disk09 c3t10d0s2 sliced 4711 35363560 -
dm disk10 c3t11d0s2 sliced 4711 35363560 -
dm disk11 c3t12d0s2 sliced 4711 35363560 -
dm disk12 c3t9d0s2 sliced 4711 35363560 -
dm disk13 c4t10d0s2 sliced 4711 35363560 -
dm disk14 c4t11d0s2 sliced 4711 35363560 -
dm disk15 c4t12d0s2 sliced 4711 35363560 -
dm disk16 c4t9d0s2 sliced 4711 35363560 -
v vg01 fsgen ENABLED ACTIVE 565812248 SELECT -
pl vg01-01 vg01 ENABLED ACTIVE 565812248 CONCAT -
RW
sd disk01-01 vg01-01 disk01 4712 35358848 0
c1t1d0 ENA
sd disk02-01 vg01-01 disk02 0 35363560 35358848
c1t2d0 ENA
sd disk03-01 vg01-01 disk03 0 35363560 70722408
c1t3d0 ENA
sd disk04-01 vg01-01 disk04 0 35363560 106085968
c1t4d0 ENA
sd disk05-01 vg01-01 disk05 0 35363560 141449528
c2t1d0 ENA
sd disk06-01 vg01-01 disk06 0 35363560 176813088
c2t2d0 ENA
sd disk07-01 vg01-01 disk07 0 35363560 212176648
c2t3d0 ENA
sd disk08-01 vg01-01 disk08 0 35363560 247540208
c2t4d0 ENA
sd disk12-01 vg01-01 disk12 0 35363560 282903768
c3t9d0 ENA
sd disk09-01 vg01-01 disk09 0 35363560 318267328
c3t10d0 ENA
sd disk10-01 vg01-01 disk10 0 35363560 353630888
c3t11d0 ENA
sd disk11-01 vg01-01 disk11 0 35363560 388994448
c3t12d0 ENA
sd disk16-01 vg01-01 disk16 0 35363560 424358008
c4t9d0 ENA
sd disk13-01 vg01-01 disk13 0 35363560 459721568
c4t10d0 ENA
sd disk14-01 vg01-01 disk14 0 35363560 495085128
c4t11d0 ENA
sd disk15-01 vg01-01 disk15 0 35363560 530448688
c4t12d0 ENA
pl vg01-02 vg01 ENABLED ACTIVE LOGONLY CONCAT -
RW
sd disk01-02 vg01-02 disk01 0 128 LOG
c1t1d0 ENA
Many thanks
Simon
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