BIG disks

[Mark Johnson]

Question,

Whats the biggest filesystem that AIX can address? I am needing to get disk
storage at around 3TB. Will the jfs support this? Or do I need to look at a
3rd party product..

MarkJ

[ptomlinson62]

I think that the largest jfs file system that aix supports is 256Gb, you may
need to look at GPFS to get your 3TB. I understand that IBM have just built
a 5TB disk farm in Saudi using this technology.

Regards

Paul Tomlinson

"Mark Johnson" <mark_j...@ordina.co.uk> wrote in message
news:38ce4...@news3.prserv.net...

[Jordi Claret]

Hi ,
You can do :
Volume group , 255 by system
Physical Disk , 32 by Volume group
Physical Partition, 1016 by hard disk and up to 256 Mb each one
Logical Volume, 256 by Volume Group
Logical Partition, 32.512 by Logical Volume

Jorsus

[Norman Levin]

Jordi Claret wrote:
>
> Hi ,
> You can do :
> Volume group , 255 by system
> Physical Disk , 32 by Volume group

** unless you create a big volume group in which case you can go to 128 PV's

> Physical Partition, 1016 by hard disk and up to 256 Mb each one

*** new versions of AIX let you specify 512Mb and 1Gig also.
*** the 1016 can be modified by a scaling factor. However, this factor will reduce
the maximum number of drives in a group.
chvg -t3 bozovg will scale up 3 (3048) but you can only have 10 drives (when you could have
had 32) or you can have 42 drives (when you could have had 128 drives).

> Logical Volume, 256 by Volume Group
> Logical Partition, 32.512 by Logical Volume

** I think this differs now for large volume groups.

--
Norman Levin